Kernel cases

a hollow hub (tube r 21.5..23) joined with nine disjoint blades whose roots lie wholly in the wall: one valid solid, the cavity stays the hub's. Blades here are r1 round bars (the report's are lofted fan blades)

extruding a profile onto a cylinder with zero taper: the new wall is the old wall continued (coincident cylindrical faces), join failed

a spiral round tube (radius growing 76 to 210 mm over one turn, 12 mm wall) built as 8 lofted bands, each minus a lofted bore, cut in half through the axis plane z=0 and the halves joined: must give one body

text cut into a plate: a boundary curve's end meeting a point whatever its parameter (glyph outlines through a text cut)

split a body by a plane (the split-by-a-face path tripped a debug assertion, 'Two same vertices cannot construct an edge')

a rod (r 16.5, 124 long) cut by two one-turn screw sweeps of one channel profile, one right-handed and one left-handed, pitch 30, both starting on the rod's top face: the channel's two radial walls meet the rod's surface, so each sweep's rail on it is a helix there and the two rails cross. The cut's new edge along a crossing rail took an interval its UV curve's trim had snapped 2.4e-12 past its 3D curve's end ('SmEdge test 2, Bad Domain')

a drilled O8.5 recess (118 deg drill point) in a plate, then a O4 hole through its centre: the second cut 'does not work'

a box and a cylinder in general position (nothing coincident or tangent): Intersect refused as an implausible volume

union of two crossing cylinders, both moved (1000,-700,300) mm: volume lost with position

a rim on a coin's top face that meets the coin along one circle only (no shared area, no shared volume): it must not be joined into it

a second sphere cut overlapping an earlier sphere cut on a box edge: 'no result'

an extrude cut whose profile stops 0.25 mm short of a wall's far face must leave that skin (it was grown through)

two 1.5 mm circular cuts overlapping an earlier 0.75 mm pocket (timeline roll-back, insert, redefine): the cut came out empty

a union of two solids that meet along cylindrical faces: a tube (r10..12, z 0..20) and a 90 deg ring sector (same radii, z 10..30) whose curved faces are the tube's own, overlapping it axially; refused ('planar faces only') or, by the faceted fallback, left 1710 faceted faces

intersection of two cylinders of one radius on one axis (z 0..30 and 22..46) whose round sides lie in each other over the shared 8 mm

Delete Face on the 0.5 mm deep O15 recess of a plate: the face around the gap must keep its surface

a profile side drawn as two collinear lines extrudes into one flat face, not two with an edge between them

with a taper too, a side drawn in two collinear pieces is one face

the overlap of a pin 0.00056 mm off the axis of a bore of its own radius (r=3, 9.65 long): a thin crescent. The report's STEP round trip is left out; this is the geometry

a rivet (shank r=2, heads r=4 flat on both faces of a 1.5 mm sheet) 0.004 mm off the axis of its hole: overlap with the sheet is the shank's crescent; the heads touch the sheet faces over an area but add no volume

mirror a feature with Join: the image meets its original along the mirror plane and the join was refused for its volume

a join of coaxial cylinders of one radius whose walls overlap leaves one cylindrical wall in one face (it came out as a stack of faces, so a later chamfer on its top edge refused)

a countersunk hole at two sketch points at once, in a design with several bodies: 'there is no body to cut or intersect' (one point works)

a rectangular pattern of a cylinder join (pin-fin plate) scales quadratically in time

an Extrude Join onto a plate with a hidden coincident copy: the hidden body must not be joined in

a circular pattern (count 2, 360 deg, about Y) of a cut made off-axis: 'boolean Cut: no result'

a box minus a cylinder of radius 8 tilted 4.006 degrees from z, whose top end cap is centred on the box's top face plane z = 16.5 so the cap is bisected by that face, and whose seam ends on one of the two points where the cap circle crosses it: a vertex where the cylinder, its cap plane and the box's face all meet. The cut must give one closed solid; the same cut with the cap centre 1 um clear of the face passes

a box clipped by a half space, less a quarter-round notch along the tilted edge that clipping leaves: the notch's tool is the cylinder of radius 8 about that very edge, tilted 4.006 degrees from z, its seam on the line where the cylinder meets the slanted face on the material side, and both its cap centres exactly on the box's z = 16.5 and z = -55 face planes. The cut must give one closed solid; the mirror image about x = 0, whose seam is on the line on the empty side, passes. This entry's slanted plane holds the axis exactly, which is what the issue's design means; built from the issue's own rounded rotation the plane misses the axis by 1.5e-06 mm and 4.5e-07 rad, and the same cut then fails face test 36 (tests/issue_2538_tilted_notch_on_a_slant_edge.rs holds that as known failing)

an extrude of an outline whose bottom side is drawn as two collinear pieces that wrap past the loop's first segment ((10,0)->(20,0) ... (0,0)->(10,0)): the bottom is one face

a 16 mm box cut out round a small (r 1.8) hole of a 3 m long, 2 mm plate keeps the hole in both faces

a tapered extrude of a 20x10 rectangle whose bottom side is drawn as two collinear pieces: the sloped side is one face

a tapered extrude whose start is offset along the sketch normal (the app says: not supported yet: taper with two-sided, symmetric or offset extents)

a tapered extrude of a profile in which an arc meets a line at a corner (a half disc)

the mirror copy of a primitive cut changes only the seed's targets, not a body the seed was told to leave alone

copies of a primitive cut made with a rectangular pattern change only the seed's targets, not a body the seed was told to leave alone

a join of a triangular prism and a thin slab with rounded corners (r 4.9) that share their bottom plane, the prism's edge in that plane lying in the slab's end face

a tapered extrude of a loop of arcs on three circles meeting at sharp corners (a circle with a lobe on each side); the walls must meet at the corners

a cut that ends exactly in a face of its target (the plate's top face) must open the hole, not leave a zero-thickness skin over it

a join of a ring (R30/R24, 6 tall) and an arm with a convex R5 end whose tip runs 0.1 mm into the ring's outer wall (curved faces that nearly graze)

a join of a ring and an arm whose R5 convex tip stops 0.01 mm short of the ring's outer wall: nothing overlaps, so nothing fuses

a countersunk hole in a small plate, near a rounded corner, while an unrelated body sits 120 mm away: only the plate may change, and the countersink must be complete

a dome made by solid.revolve (quarter disc r 10 about y, its arc passing through [7.0710678118654755, 7.0710678], about 1e-8 off the true circle (its y is rounded to 8 decimals; the exact point passes)) joined flush to a cylinder of the same radius (r 10, h 15, below y = 0, sharing the circular face y = 0): one solid. With the arc about 1e-8 off, the check refused the result ('Face Near missing Seam') until #13713 was fixed (#14348); the same case with the exact arc passes, and so does a primitive sphere joined to a cylinder (2851)

a dome made by solid.revolve (quarter disc r 10 about y, its arc passing through [7.0710678118654755, 7.0710678], about 1e-8 off the true circle (its y is rounded to 8 decimals; the exact point passes)) joined to its own mirror across y = 0 (solid.mirror with combine): a sphere. With the arc about 1e-8 off, the check refused the result ('Face Near missing Seam') until #13713 was fixed (#14348); the same case with the exact arc passes, and so does a primitive sphere joined to a cylinder (2851)

two 40x30x10 boxes with R2 vertical corner fillets, the second shifted 1e-4 mm in x (a rounded-rectangle sketch extruded for B, a filleted box for A), cut B - A (B is the target): a sliver 1e-4 thick (SMLib refused it as 'not a closed solid' before solidcore#3074)

two 40x30x10 boxes with R2 vertical corner fillets, the second shifted 1e-4 mm in x (a rounded-rectangle sketch extruded for B, a filleted box for A), cut A - B (A is the target): a sliver 1e-4 thick (the kernel refused it with upstream status 1001 before solidcore#3074)

a pin (r4) seated line to line in a bore (r4, exactly coaxial) of a bush: the two cylinder walls coincide

four pairs of through holes whose circles touch at exactly one point (ring holes at (+-25,0),(0,+-25) against grid holes at (+-15,0),(0,+-15)); the symmetric contacts must be treated alike and split no cylinder face

a hinge leaf (40x30x3) with a joined r4 knuckle cylinder along X and a O4 pin hole, then a 3.3 mm blind cut of x 12..28, y 29..40 ending inside the cylinder: the result grew a sphere and a freeform face

a ring (r 19.6/20.8, 20 tall) joined onto the top of an 80x80x1.2 plate with a 9x9 grid of 6.4 mm square holes: the ring's foot crosses many hole edges

a cut over the bottom edge of a revolved cylinder that holds a sealed spherical void on its axis: the body must not come out empty or refused

a join of a cylindrical rim (r 15.27..16.65, to z=5) and a rounded tooth trimmed to the same two cylinders that overlaps it by 0.01 mm in Z

cutting the complete circular top face of a widening conical frustum inward: the cylindrical tool touches the cone only at its rim

a cut whose end face lies exactly in a side wall of its target (a window notch): the cut must open the wall, with no skin left in it

a circular pattern of a join whose two targets (rim and hub) were merged into one body by that join

a circular pattern (count 5) of a spoke thinner than the ring it joins (faces 0.5 mm inside the rim and hub faces)

a root body joined into a body inside a component whose occurrence is turned a quarter turn: the tool must stay where it is in the world

split body where the splitting plane contains an end face (with a boss on it and an R1 fillet on the face's edge)

one combine of 64 separate pegs that do not touch: 36 s on truck, growing 4-9x per doubling; must finish in seconds

a deep cut that removes everything above z=2 of a tapered body with nine through-bores, leaving the 2 mm drilled base

Combine cut (keep tools) of an enclosure by its lid whose insert is flush with the inner walls and carries four small half-moon tabs that cross them; the cut must not return the target unchanged

a boss joined on a rod's top face (the join runs the boss on into the rod); the rod's side must stay one face, not seamed at the boss's foot

intersection of two collinear R2 H12 cylinders offset by 0.75 along the axis (curved walls coincide over part of the height)

a pin r=3.02 intersected with a tube whose bore is r=3: a thin annulus (0.02 mm overlap on a curved wall)

intersect of a two-lump target (two spheres joined while apart) with a box holding the bottom half of each

cut of a box by a swept G2 corner-removal tool along a projected edge chain (left-rear corner; the symmetric front-left chain works)

a spoke whose inner face x=12 is exactly tangent to the hub cylinder r=12 (line contact), joined to the rim, patterned 5 times around the hub's axis

a sphere r=10 intersected with a square pyramid whose apex is the sphere's centre and whose sides lie in the planes of the sphere primitive's patch edges

mirror a Mirror feature (the first mirror's hole) about a second plane: 'Mirror1 cannot be patterned or mirrored yet'

a join extrude of a column standing on a channel's flat floor and lying along both its curved walls (column circle tangent to both walls)

intersect with a tapered pocket tool whose top face lies in the block's top face, 0.5 mm short of a rib

a 0.2 mm board lying in the open cavity of a case with a filleted circular rim: cutting it from the case must leave the case unchanged (it was taken for wholly inside)

two joined face extrudes on one box (top face, then the right side face): the stepped shape must stay

extrude to a point lying exactly on the top edge of a step: must end at the plane z=20 through the point

emboss on a cylinder with the face pick on the half of the wall opposite the sketch

circular pattern of a body about an axis {origin,dir} that does not pass through the world origin

split a thin-walled cup (shell of a d30 cylinder) with a surface body: an extruded spline surface, extended at both ends

a O50 x 50 cylinder with a 25 mm square through-hole, then a cross cut by a O40 circle split into two halves by a line (both halves picked, merged into one round tool whose end face x=25 touches the cylinder's side along y=0): the result must be one shell, not a good shell plus a zero-area one

the O10 through-all hole across the wall of the body from the cross-cut case (the report's failing step: 'lumps: cannot mesh a complete shell boundary')

a hole of diameter 10 drilled into the top of a truncated cone whose top is also diameter 10 (the hole wall meets the cone at the top rim)

symmetric 180 deg revolve cut about a vertical edge of a block, the tool's end faces lying in the block's side face

a blind hole mirrored to a spot where half its top disc lies under a wall's foot

a 10 mm ring (rounded corners) extruded 40 mm as a Join round a floor's outline: it touches the floor back to back on its flat sides and rounded corners

a slab cut whose +x face stands 6.73e-05 mm (0.90 x the coincidence tolerance 7.48e-05) off a through-bore's wall (R=10), beside the bore

a one-sided Through All cut from a sketch plane at x=98 toward -x, with its wall 0.0022 mm from a face of a notch beyond the plane: the cut must remove nothing at x > 98

a body split by a plane, its two pieces joined back, flush on the split faces (the report's part was an imported vendor connector; synthetic: a block with a bore and a boss, both cut by the plane): the join never finished

a symmetric through-all cut by a 45 deg wedge across the end of a slotted ring (r 22.5..40, a 3 mm slot, 75 mm long): truck left a stray planar sheet out to the sketch's boundary at x = -65, with no error

nine identical rings (r 10..20, 5 thick) in a 3x3 grid 38 apart, each overlapping its edge neighbours, joined in one combine: ~90 s then 'boolean Union: no result' (one pair already failed)

a 6x7 rectangle with one corner exactly on the slanted top edge of a triangular prism, joined 10 mm up: 'profile loop is not closed' on 0.17

a 60x60 slab sketched on the base of a tapered square pyramid frustum and extruded 10 mm away from it as a join: 'join cannot preserve the original faces; check for zero-thickness edge contact'

a line of text (22 letters, 7.81 mm high) on a block's top face, running over the block's edge, cut 1 mm deep with a -5 deg taper: 145 s in truck (the untapered cut takes 1 s)

a 20x15x5 box minus an r3 through bore: truck's measure read 1.66e-4 of the removed volume too much (1358.6518 for 1358.6283) while the geometry was exact

a coil (diameter 151, pitch 10, 80 high, 5 mm round section) whose section runs through a diameter-152 cylinder's wall, joined to it: truck ground for 125-296 s, then 'boolean Union: no result'

a 12x8x8 block (x 8..20) crossing the inner sphere r=18.5 of a hollow spherical-shell tool: the cut keeps the part inside r=18.5

a block wholly inside the void of a hollow spherical-shell tool (r 18.5 to 40): cutting leaves it untouched, the tool never reaches it

a 10 mm join on a block's top face whose sketch is then edited out past the block on every side (60 x 50 on a 40 x 30 top): truck refused the rebuilt join ('join cannot preserve the original faces') and dropped it

Split Body of an L-shaped body with one of its own faces as the tool (the column's side x = 15, its surface extended through the base): truck panicked ('split body: Option::unwrap() on None')

a 3 mm disc (r23) joined on the top face of a ring extruded 14 mm with a 10 deg outward taper (r 18.5 growing, bore 13.75 shrinking): 202 s in truck before the right result

a 5 mm pocket cut from a hull's top face with a 30 deg taper (growing with depth) from a 282x176 outline with r2 corners: truck refused it ('the taper closes the profile'), as its run-on behind the start face narrowed past the corner radius

a cylinder r10 x 40 with its top edge filleted r2, cut 14 mm down from its flat top face (the R8 disc, bounded by the fillet's edge): ~30 s, then 'boolean Cut: no result'

a 0.6 mm pocket cut from the top of a tab joined to a disc with a chamfered bottom edge (the join fell back to truck's tool nudge, which lifted the tab's top by 5e-5 mm): the pocket never opened, it left a sealed void under a 0.00005 mm skin

a symmetric through-all cut of a window across a thickened (2 mm) surface revolve of a control-point spline (100 deg about X): truck ran ~20 s to 'boolean Cut: no result' (or never finished)

a 5 mm slot cut end to end through one wall of a tube (r 20..30 x 100) whose top rims are chamfered (2.5 outside, 4 inside): the cut hung (moving the chamfers after the cut worked)

a radius 20 cylinder cut out of a coaxial radius 40 disc spanning x -1..1 lost about 2.6% of the volume

a drilled O8 hole, 10 deep with a 118 deg point, centred on the top edge of a 40x30x20 box (x = 0): half of it in the box, across the edge: 17-54 s in truck

a countersunk O6.4 hole (O13.7, 90 deg) through a plate 0.15 mm from a wall standing on it: the countersink tool reached ~0.7 mm above the entry face and notched the wall

a join of the 20 level-2 Menger sponges (45 mm, 5 mm cubes) of a level-3 sponge, touching face to face with the same hole pattern on both faces of each contact: truck failed depending on the tools' order ('coincident faces were left in place', 'shell not oriented and closed')

a 25x2x10 fin standing on a disc plate, circular-patterned 40 times about the plate's axis (joined): 'boolean Union: no result' past about 15 copies

a pin (r2.1 x 11) joined on the side face of a triangular prism that has a blind bore running in from its slanted face: the join ground for ~90 s, then 'boolean Union: no result'

a bar intersected in one extrude with two mirrored outlines (slanted on their inner sides): truck deleted the body with only a warning; each outline alone worked

an r2.5 hole cut through a 40x30x10 block's 30 mm side by a 5000 mm extrude: truck panicked ('tolerance must be no less than 1e-6') at 5000 mm (4999 worked)

a second plain O9 through hole in a 14 mm base plate, nowhere near a blind drilled O4.2 hole in the tower above: truck refused it, pointing at the blind hole's 118 deg tip ('could not be computed reliably')

a rib joined flush onto the floor of a channel (a box rounded r2.4 on all edges, its 45 wide cavity cut through its top and both ends), its ends buried in the side walls: truck's tool nudge kept both faces of the flush contact, a 0.077 um slit with 450 mm2 too much area

an inner wall of a rectangular opening through a block face-extruded 1 mm back into the material as a cut (what Press Pull runs on a flat face): 'boolean Cut: no result'

a 1 mm through-all hole straight down into the 2 mm rim of a shelled box: 'implausible volume' / no result

Press Pull of a floor whose neighbours are rounds (vertical corner fillets): 'a neighbouring edge is not straight'

tapered extrude of a D shape (an arc meeting a line at a sharp corner): refused as 'tapered profiles where an arc meets another edge at a corner'

tapered extrude of a text glyph (Bezier outline): refused with a misleading 'mixing lines and arcs' error

Boundary Fill of the cell inside one cylinder and outside the other: the crescent

Boundary Fill of the cell inside both of two overlapping cylinders (r10, axes 10 apart): the lens

a cell point outside every tool encloses nothing: refused

two adjacent sides of a block (front and right) drafted 10 deg from the base: the drafted faces meet along a new slanted edge

a body patterned 3 times along a half circle r20 with orientation path: each copy turns with the tangent

a boss joined to a plate, patterned 5 times 20 mm apart along a sketch line

6 instances 20 mm apart need 100 mm of an 80 mm path: refused

Press Pull on an edge (its fillet mode): the block's top front edge rounded r2

a cylinder's top face projected onto a sketch 10 mm above it and extruded: the projected circle is the profile

a sphere's silhouette projected onto a plane below it and extruded: the outline is its equator circle, exactly

a block's top face split by a sketch circle on it: a disc face and the face around it

a block's top face split by the side of a cylinder standing on it (the tool face's surface extended)

A circumradius-50 regular hexagonal prism (z=0..50) is cut by a lower hemisphere of radius 69 centred at z = 72. The quarter-disc profile is split at radial distances 25 and 50. The radial-50 band meets the prism only at hex corners; no small circular tail is a distinct boundary. Expected roof z(r)=72-sqrt(69^2-r^2). The volume is the exact polar integral over six hexagonal wedges: V=(R+3)A-2*pi*R^3/3+4F, A=3*sqrt(3)s^2/2, d=sqrt(3)*s/2, a=sqrt(R^2-d^2), b=sqrt(R^2-s^2), phi=asin(s/(2a)), F=R^3*atan(R/(sqrt(3)*b))-(3*a^2*d/2+d^3)*phi-d^2*b/(2*sqrt(3)), with s = 50 and R = 69. The hemisphere axis is shifted +5e-11 mm in X to exercise a distinct clipping event at an almost coincident corner. This changes the exact volume from the centred formula by at most A*delta(50+delta)/sqrt(R^2-(50+delta)^2)<4e-7 mm^3, using the maximum derivative of the spherical roof. This bound is far below the grading tolerance; the positive shift is part of the input, not a boolean retry. Radius 69 reproduces status 1001 on SolidCraft commit f6d044089 at the reported radius offset 19.

a prism with a pocket cut whose outline starts on a slanted outer face and leaves it at a shallow angle: one valid solid, not a refusal. The cut put a vertex 0.0056 mm from one edge's end; the tolerance update grew it to twice that, past 1000 times the B-rep's 0.00001 mm (SMLib Test #82), and the check refused the cut

an R10 round on the four inside floor edges and three of the four inside vertical corners of an open tray, so one corner keeps a sharp vertical edge where two floor rounds meet (rebuilt from the report's edge picks: the original design is not in the report)

a 4 mm chamfer on the top front edge of a cube with three square openings stays clear of the openings (they start 5 mm in)

all four top rim edges of a basin whose walls all slope 10 over 20, its front rim 1 mm wide, chamfered 0.5, mitred at the rim's corners

all four top rim edges of a basin whose walls all slope 10 over 20, its front rim 1 mm wide, chamfered 2: the front chamfer's leg runs off the rim over the slab's front face (a cliff), so the loop builds as if the top went on, mitred at the rim's corners, and is cut by the front face

a 9 mm chamfer on the top front edge of a cube with square openings 5 mm in runs past the 5 mm between the edge and the openings: built as if the faces went on over the openings, then cut by them (cliff overflow); it never bridges an opening

the 1 mm front rim of a sloped basin's top chamfered 2: its leg on the top runs off the rim over the slab's front face (a cliff), so it builds as if the top went on and is cut by the front face, which it lowers to z = 29.570689 where it crosses it

the 1 mm front rim of a sloped basin's top chamfered 1, as wide as the rim: its leg on the top ends on the slab's front edge, using the rim's top up, and it builds

the 1 mm front rim of a sloped basin's top chamfered 0.5, half the rim's width: it fits

all four top rim edges of a basin whose walls all slope 10 over 20, its front rim 1 mm wide, rounded R 0.5, mitred at the rim's corners

all four top rim edges of a basin whose walls all slope 10 over 20, its front rim 1 mm wide, rounded R 4, mitred at the rim's corners: past the rim the front round runs over the slab's front face and is cut from the slab

a 40 x 30 x 10 block with a 5 x 5 x 3 notch at a bottom corner, its top outline rounded R7: the round uses up the 7 mm wall over the notch

a 40 x 30 x 10 block with a 5 x 5 x 3 notch at a bottom corner, its top outline rounded R8: the round runs past the 7 mm wall over the notch into the notch and is cut by it

all four of the top rim edges of a sloped basin with a 1 mm front rim rounded R0.5, mitred at the rim's corners

the 1 mm front rim of a sloped basin's top rounded R0.5: it fits on the rim

the front and right of the top rim edges of a sloped basin with a 1 mm front rim rounded R4, mitred at the rim's corners: past the thin rim the front round runs over the slab's front face and is cut from the slab

all four of the top rim edges of a sloped basin with a 1 mm front rim rounded R4, mitred at the rim's corners: past the thin rim the front round runs over the slab's front face and is cut from the slab

the 1 mm front rim of a sloped basin's top rounded R4: the round runs over the rim's top past the slab's front face (a cliff) and is cut from the slab

the right ledge's two edges at its corner (12, 30, 33) rounded r 0.5 together: the convex edge where the ledge top meets the bore's round bottom (it runs on tangentially into the smooth edge between the bore's round bottom and its flat wall) and the concave edge where the ledge top meets the arch's front face, a mixed-convexity corner beside a curved face

the top edge of #851's concave R21 wall chamfered 10, the wall's full height: its leg down the wall ends on the wall's bottom edge, using the wall up, and it builds

an R2 round on the outer and inner rim circles of a tube's top face (the report's ten picks on a ring-shaped top: the round failed after 0.10.1; rebuilt as a plain tube since the design is not in the report)

the chamfer twin of 11991-round-cylinder-edge-ending-on-a-round-tangent-line: a box 30 x 20 x 20 with its vertical edge at x = y = 0 rounded R5, joined with a half cylinder r2 along x (axis y = 0, z = 15, x 5..11) standing out of the front face y = 0; the cylinder's end x = 5 lies exactly on the line where the front face runs tangent into the R5 round. A 0.5 chamfer on the concave edge where the cylinder meets the front face (z = 13). Failed on 0.40.0-rc.2 with SMLib status 1001; builds on rc.3.

a box 30 x 20 x 20 with its vertical edge at x = y = 0 rounded R5, joined with a half cylinder r2 along x (axis y = 0, z = 15, x 5..11) standing out of the front face y = 0; the cylinder's end x = 5 lies exactly on the line where the front face runs tangent into the R5 round. The concave edge where the cylinder meets the front face (z = 13) rounded 0.5 must give one closed solid, as it does at x = 5.001 or 6

a ruled loft (degree 1) from the square of side 30 at z = 0 (four lines) to the circle r10 at z = 30 (four quarter arcs centred on the square's sides' directions): six faces, the top a plane disc. Its circular top rim, the four arcs as one tangent chain, rounded R2 must give one closed solid

after the boss's partial base arc is rounded r2, the bar's top edge that runs into the round rounded r2 without its tangent chain

after the boss's partial base arc is rounded r2, the bar's top edge that runs into the round rounded r0.5

after the boss's partial base arc is rounded r2, the bar's top edge that runs into the round rounded r2

the bar's top edge and the partial base arc of a boss standing out over the bar's side, rounded r2 together: the corner patch where they meet must join the bar's round at least G1 (today a 15.6° crease)

an edge that runs on tangentially into a round left out of the blend (tangent chain off) is rounded on past the round's end arc until it leaves the material

an edge that runs on tangentially into a round's end arc, its tangent chain rounded with it: the r1 round follows the end face's outline over the r3 round and down the back edge

an R2 round on the concave arc where a bar top meets a boss that only partly sits on it

an R2 round along the straight top edge of a bar that runs out against a cylindrical boss

an R3 round on the end circle of a lofted tube whose axis bends 60 degrees

an L body: a 4 mm wall (x 16..20, y -20..20, z -40..2) on a 7 mm base (x 16..23, z -50..-40), so the base stands 3 mm proud of the wall as a ledge at z = -40; the wall's outer vertical edge at x = 20, y = 20 and the ledge's at x = 23, y = 20, both convex edges between the back face y = 20 and the faces x = 20 and x = 23. Both edges rounded R2.5, a size that fits each: one closed solid (R3 the same), as each edge alone builds

an L body: a 4 mm wall (x 16..20, y -20..20, z -40..2) on a 7 mm base (x 16..23, z -50..-40), so the base stands 3 mm proud of the wall as a ledge at z = -40; the wall's outer vertical edge at x = 20, y = 20 and the ledge's at x = 23, y = 20, both convex edges between the back face y = 20 and the faces x = 20 and x = 23. Both edges rounded R5 (solidcraft#12342, case 2): past the 3 mm ledge and the 4 mm wall, so it must be refused naming the largest radius that fits, 3; it fails with status 1001. Each edge alone is refused (the ledge naming 3) or builds up to its fit, and the pair at R3.5 or R4 is refused naming 3

an L body: a 4 mm wall (x 16..20, y -20..20, z -40..2) on a 7 mm base (x 16..23, z -50..-40), so the base stands 3 mm proud of the wall as a ledge at z = -40; the wall's outer vertical edge at x = 20, y = 20 and the ledge's at x = 23, y = 20, both convex edges between the back face y = 20 and the faces x = 20 and x = 23. The wall's edge alone rounded R5, past the wall's 4 mm: the round overflows onto the wall's inner face and is trimmed at its crease there (solidcraft#12342; it failed with status 1001 at a corner whose extended edge ran off the back face's bounded plane)

a 0.8 mm round on the exposed half circle at the bottom of a cylindrical boss joined to a box side

a 3 mm chamfer on the rim of a hole tangent to the bottom face runs off that face: refused, today because SMLib's blends have no corner of the kind where the rim meets the bottom tangentially (never material added below the part)

a cylinder r22.5 from z = 0 to 30 about the z axis, joined with a bar (0 <= x <= 110, |y| <= 9, 0 <= z <= 7.5); the cylinder's bottom rim chamfered 7.5 (the cone rho = 15 + z up to z = 7.5), then the bar's two bottom long edges chamfered 7.5 up the wall at 30 degrees to it (the planes |y| = 9 - (7.5 - z)/sqrt 3). The concave edge where the cone meets the plane chamfer of the y < 0 side, from (14.2546, -4.6699, 0) to (20.6216, -9, 7.5), rounded R5 must give one closed solid, as it does at R4.5 and R8: the round ends on the bottom face's plane and on the bar's top face's plane, both at a slant to its sections

an R1 fillet on the end edge of a 3.5 mm slab after a pleated loft was joined flush with its inner face (the join needs a tool retry; later fillets must still work)

a 1 mm chamfer on the concave edge between a cone (z 1.5..3) and a plane through the Z axis; the edge's outer end lies on the wall where two faces of one cylinder (r 20.4 about Z) meet, at a seam across the chamfer's end. The chamfer must end on the cylinder, without a face of its own there

the same 1 mm chamfer where the wall at its outer end is a single face of the cylinder r 20.4 about Z: the chamfer must end on that face

vertical corner fillets R2 on a 25x25x10 box whose four bottom edges are already rounded R2 (the round meets the earlier mitre)

the mirror image of the left ledge's concave edge: the right ledge's top meeting the arch's front face, x 12 to 18, rounded r 0.5; it builds as the left one must

the concave edge where the left ledge's top (z = 33) meets the arch's front face (y = 30), x -18 to -12, rounded r 0.5: the round ends on the bore, whose flat wall and round bottom meet tangentially at the edge's end

a 1 mm chamfer on the top rim of a cylinder r 125, h 12: narrower than about r / 40, it must build like a wider one

a round of radius 1 on the top rim of a cylinder r 50, h 12: narrower than about r / 40, it must build like a wider one

an R5 round of the top rim of a 297 mm long box whose corners are R5 (a 287 mm line beside 7.85 mm quarter turns)

R7 rounds of the outer top edge and the inside edge of a 2 mm wall in one fillet: the inside round holds the material the outer one runs over, so the wall stays closed

an R5 round on an outer top edge and the matching inner (concave) edge of a 2 mm wall in one feature fits, as it does one after the other

an R7 round of the outer top edge of a 2 mm wall alone: past the sharp inside corner it would cut through the wall into the hollow, opening a slit along it, so it is refused, naming the largest radius that fits

an R2.5 round of the top rim of a disc R13 x 2: the round runs past the bottom of its 2 mm wall (a cliff) and is built as if the wall went on, cut by the bottom face

an R2 round of the top edge of a disc 2 mm high (the round is as tall as the wall, so it meets the bottom face)

a block with two R2 top edges rounded, copied and pasted 40 mm over: the copy must carry its own fillets

a 3 mm chamfer on the outer top arc of a 120 degree annular sector joined to a lower inner sector (the joined outer wall must not limit the chamfer)

an R3 round on the four vertical edges of a 14x6x10 box: the two rounds on each 6 mm end face meet exactly (the face is used up)

a plate with 6 pockets made by patterning one pocket and the R3.2 round of its four corner edges, the pocket height set by a parameter

a 2 x 2 grid made by a feature pattern of a boss and its two chamfers (a concave root chamfer and a convex tip chamfer)

an R6 round on the vertical edge where two cylinder walls meet (the concave corner of two merged discs), the two walls meeting at an angle

an R2 round of the top loop of a 26.4x8.6x8.4 rounded rectangle whose end edges are only 0.02 mm long (corner radius 4.29)

one pick on a stadium boss top rim chamfers the whole tangent loop, also when the part is more than 200 mm across

a curvature-continuous (G2) fillet of size 5 on a straight edge that ends on two slanted planar faces

a 1 mm chamfer round a bottom loop whose corners are R1 rounds: each corner cone closes to a point on the bottom face

an R1 round round the rim of a radius-2 sphere cut flat at z=1

a Two Distances chamfer (1 mm on the top face, 0.5 mm down the wall) on the circular rim between a plane and a cylinder

an R1.5 fillet of the 32 vertical root edges of 8 ribs between two walls of a grille tray (a performance case: the time must not blow up)

an R18 round on the outside top edges of a 3 mm thick upside-down U, concentric with the R15 round of its inside edges

a 3 mm U shell (60 x 20 x 50) whose inside top edges are rounded R15: its outside edges rounded R30 would cross into the hollow and cut the top plate off the walls, so it is refused, naming the largest radius that fits

the top rim of a cylinder r10 x 20 chamfered 2 across the top at 90.573 deg from it: refused

the top rim of a cylinder r10 x 20 chamfered 10 across the top and 3 down the wall: refused

a cylinder r5 tilted 26.6 deg from Z cut flat at z = 10, its elliptical rim chamfered 1 and 2: one closed valid solid

the top rim of a cylinder r10 x 20 chamfered 2 across the top and 25 down a 20 mm wall: the leg down the wall runs 5 past the bottom rim, so it builds as if the wall went on and is cut by the bottom face, a cone frustum

the top rim of a cylinder r10 x 20 chamfered 12 across the top and 3 down the wall: refused

centered70x50 extrusion at edited height33, four outer vertical R6 rounds before top-open inward shell2 (inner cornerR4), from typical/filleted-shelled-box; original height30 changes to33 while matrix blend size stays0.627; blend the complete eight-edge inner top rim from the first reported mirror, explicitly in the reproduced chain order. Direct original Body.record() JSON captured from public SolidCraft kernel APIs at application PR #12413 head 2e8847512baf43c91ab4e2c407750d6f896b6053 with solidcore9856ffee5. This is the geometry after rebuilding height33, not an engine timeline/reference-resolution replay and not an SMB re-export. V0=(70*50-4*A*6^2)*33-(66*46-4*A*4^2)*31, L=192+8*pi. There is no floor round. A=1-pi/4 and M=5/6-pi/4 are the unit round section area and first moment. Outward parallel contours have Jacobian1+kappa*u and total turning2*pi. For the top inner chamfer, subtract L*d^2/2+pi*d^3/3 (triangle area d^2/2 and moment d^3/6), at size0.627. Eight new strip faces, sixteen extra edges and eight extra vertices give counts(27, 64, 40); the existing annular top face remains annular.

centered70x50 extrusion at edited height33, four outer vertical R6 rounds before top-open inward shell2 (inner cornerR4), from typical/filleted-shelled-box; original height30 changes to33 while matrix blend size stays0.627; blend the complete eight-edge inner top rim from the first reported mirror, explicitly in the reproduced chain order. Direct original Body.record() JSON captured from public SolidCraft kernel APIs at application PR #12413 head 2e8847512baf43c91ab4e2c407750d6f896b6053 with solidcore9856ffee5. This is the geometry after rebuilding height33, not an engine timeline/reference-resolution replay and not an SMB re-export. V0=(70*50-4*A*6^2)*33-(66*46-4*A*4^2)*31, L=192+8*pi. There is no floor round. A=1-pi/4 and M=5/6-pi/4 are the unit round section area and first moment. Outward parallel contours have Jacobian1+kappa*u and total turning2*pi. For the top inner round, subtract L*A*r^2+2*pi*M*r^3, at size0.627. Eight new strip faces, sixteen extra edges and eight extra vertices give counts(27, 64, 40); the existing annular top face remains annular.

60x40x30 extrusion, top-open inward shell3, four outer vertical R6 rounds, four inner vertical R3 rounds, inner floor tangent-chain R1; blend the complete eight-edge inner top rim from the first reported mirror, explicitly in the reproduced chain order. Record re-exported through solidcraft_smlib::Brep::read(seed0-input.smb,true).to_native(); the SMB captured the exact pre-final operand built by public SolidCraft kernel APIs at application PR #12413 head 2e8847512baf43c91ab4e2c407750d6f896b6053 with solidcore9856ffee5. This re-exported representation itself reproduces the refusal; it is not a synthetic Ops reconstruction. V0=60*40*30-54*34*27-4*A*6^2*30+4*A*3^2*27+L*A-2*pi*M, L=152+6*pi. The floor adds L*A-2*pi*M on the inward side of the already rounded cavity contour. A=1-pi/4 and M=5/6-pi/4 are the unit round section area and first moment. Outward parallel contours have Jacobian1+kappa*u and total turning2*pi. For the top inner chamfer, subtract L*d^2/2+pi*d^3/3 (triangle area d^2/2 and moment d^3/6), at size0.47. Eight new strip faces, sixteen extra edges and eight extra vertices give counts(35, 80, 48); the existing annular top face remains annular.

60x40x30 extrusion, top-open inward shell3, four outer vertical R6 rounds, four inner vertical R3 rounds, inner floor tangent-chain R1; blend the complete eight-edge inner top rim from the first reported mirror, explicitly in the reproduced chain order. Record re-exported through solidcraft_smlib::Brep::read(seed0-input.smb,true).to_native(); the SMB captured the exact pre-final operand built by public SolidCraft kernel APIs at application PR #12413 head 2e8847512baf43c91ab4e2c407750d6f896b6053 with solidcore9856ffee5. This re-exported representation itself reproduces the refusal; it is not a synthetic Ops reconstruction. V0=60*40*30-54*34*27-4*A*6^2*30+4*A*3^2*27+L*A-2*pi*M, L=152+6*pi. The floor adds L*A-2*pi*M on the inward side of the already rounded cavity contour. A=1-pi/4 and M=5/6-pi/4 are the unit round section area and first moment. Outward parallel contours have Jacobian1+kappa*u and total turning2*pi. For the top inner round, subtract L*A*r^2+2*pi*M*r^3, at size0.47. Eight new strip faces, sixteen extra edges and eight extra vertices give counts(35, 80, 48); the existing annular top face remains annular.

a 1.5 mm chamfer of both end outlines (sides, top and the two top arcs) of a prism with rounded top corners, bottom edges left alone

a 40 x 30 x 5 plate's whole top outline rounded R5, as tall as its walls: each round uses its wall up, the four mitred at the corners

324-fillet-over-hole-overlap with the hole cut by a cylinder longer than the block (z -1 to 11), so the hole's wall is trimmed by both the top and the bottom face

a 4 mm fillet on a top edge whose round overlaps the rim of a through hole (the hole breaks into the round)

three extrudes joined into an L-shaped body with a 1 mm protrusion, then a chamfer on the protrusion's outer edge (the report: the corners are no longer 90 degrees and the chamfer fails)

an R2 round on the whole top outline of two merged cylinders after their two concave vertical edges were rounded R5

an R2 round on a straight edge whose ends sit on the tangent seam between a flat top and a rounded end

a fillet of radius 6.9 on a cylinder rim whose flat top ring (round the joined boss) is only 4.3 mm wide must be refused, not grow the part

a plain box with all 12 edges chamfered, the edges listed in an order that was refused

a circular pattern (6 copies about Y) of a through hole and the 1 mm chamfer on its rim (the report: the pattern is refused because the copied chamfer 'would grow the part'); rebuilt as a hole in a disc, the original design is not in the report

a 0.1 mm chamfer on all eight top-rim spans of a 20 x 20 pillow whose four sides are fit splines (two cubic spans each)

a 0.1 mm fillet on all eight top-rim spans of a 20 x 20 pillow whose four sides are fit splines (two cubic spans each)

a chamfer of an inside (concave) edge fills the corner and adds material, one on the outside edge removes it

a 3 mm chamfer on the bottom long edge of a bar joined on top of a pin, where the chamfer is wider than the 2 mm gap between that edge and the pin

the four edges of a block end face chamfered where the block sides are 1 degree off square: exact volume of the plane-clipped prism (the corner edges of about 0.0001 mm are real geometry)

an R5 round on the corner edge left by a wedge cut through a body vertex next to a B-spline face

an R4 round on the rim of an R5 notch where its cylinder meets an extruded B-spline ramp, both ends running into a square wall

the concave arc where a cylinder (r10.5) stands on a block's top, its centre on the block's front edge so the arc runs out at the front face, filleted r2: refused ('each end of the edge must touch exactly one more face')

the top and bottom edges of a 5 mm tall face chamfered 2.5 mm each, so the two chamfers meet along the face's middle and use it up: truck refused it ('the blend is larger than the neighbouring faces'; the fillet worked)

a two-distance chamfer (1 mm across the top, 7 mm down the wall) round the top rim of a periodic fit-spline outline extruded 10: truck refused it ('loop edges must be lines or arcs'), though an equal chamfer of the same rim worked

the top outline of a 60x40 r10 rounded block filleted r2 along its tangent chain, where a boss (r10, 10 high) standing over a corner of the outline interrupts it: refused ('a vertex of the edge chain where other faces meet')

the concave arc where a boss (r10) stands on a rounded block, the boss overhanging the block's corner so the arc runs out at the outer wall, filleted r2: refused ('a vertex of the edge chain where other faces meet: only straight edges can be blended')

a disc (r16 x 5) with a radial slot cut 3.2 down (65..115 deg, r 10 out through the rim): the vertical edge where a slot wall meets the outer cylinder chamfered 0.4: refused ('both faces next to the edge must be planar')

the three edges at a 20 mm cube's corner rounded R20 with fit reduce: reduced to the largest that fits, just under 20

the three edges at a 20 mm cube's corner rounded R20, as wide as their faces: refused as too large, naming the largest radius that fits

the long top edge of a 5x5 bar rounded r10, wider than both faces it rounds

the top edge of a 10x10 box end rounded r5, half the wall

both vertical edges of a 20 mm wide box end rounded r10, half the width: the rounds meet tangent and use up the end face (a full round)

both vertical edges of a 15 mm wide box end rounded r10 with fit reduce: reduced to the full round, 7.5

both vertical edges of a 15 mm wide box end rounded r10, past the full round (7.5): refused naming the largest radius that fits, 7.5

an R0.5 round on both top perimeter edges (the arc and the flat) of a D-shaped prism, the two edges meeting at sharp 90 degree corners

an inside (concave) vertical corner of a 25x15 ring with a 2 mm wall, 10 high, chamfered 2 mm: truck refused it ('2 mm is too large for this chamfer: the result changes 108 mm3')

the top edge of a face drafted 10 deg (the front of a 40x30x20 block, neutral plane at its base), chamfered 2 mm: refused ('the blend is larger than the neighbouring faces; the largest radius that fits is 0.071 mm')

the concave vertical edge where a taller cylinder (r8 x 15) meets a block's side (10 high), filleted r1: refused ('a vertex of the edge chain where other faces meet: both faces next to the edge must be planar'); it worked when both were the same height

the bottom loop of a 30x20x10 box whose vertical edges are rounded r4, chamfered 1 mm along its tangent chain: truck's corners bulged out instead of following the chamfer

two adjacent top edges of a 2 mm plate (30x31, two O6.35 holes) filleted r2, the plate's own thickness; one hole comes within 1 mm of an edge: refused ('a fillet larger than the faces next to it; the largest radius that fits is 0.963 mm')

a convex r10.01 round on an edge whose top face is 10 mm deep, 0.01 past it: it must build by subtraction (the round on the extended faces cut from the body), not be refused

a 220 x 11 two-distance chamfer along the bottom edge of a 23 mm plate 100 wide whose sides run straight for 85 mm and then taper to 61.4 at 222.5: it builds, the chamfer plane running on past the straight sides into the tapered ones, which it trims

the end edge of a cylinder r10 filleted r10, making a hemispherical end: refused ('the blend is larger than a corner radius'); r 9.99 worked

the outer top edge of a tube with a 1 mm wall (r 9..10, 20 high) filleted 1 mm: the round spans the whole wall top and meets the inner wall at its edge; truck refused it

an R0.5 round on a single straight bottom edge of a box whose end runs out against a cylindrical boss wall

all four of the top rim edges of a sloped basin whose walls slope unequally, its front rim 1 mm wide, chamfered 0.5: the chamfers meet in mitres at the rim's corners

the front and right top rim edges of a sloped basin with a 1 mm front rim chamfered 2: the front chamfer's leg runs off the rim over the slab's front face (a cliff), so they build as if the top went on, mitred at the rim's corner, and are cut by the front face

the front and right of the top rim edges of a sloped basin whose walls slope unequally, its front rim 4 mm wide, chamfered 2: the chamfers meet in mitres at the rim's corners

a fillet whose edge pick is 15 mm from the nearest edge must be refused, not applied to some other edge

a 2 mm chamfer on the six vertical corners of a hexagonal hole: one bevel each, not a notch

on #851's knife-edge part (tessellation/1263): the arc's top edge and the top front edge together chamfered 2

the top edge of #851's concave R21 wall chamfered 9.5, just under its height

the knife edge where #851's concave R21 wall runs out tangent into the back face, chamfered 2, the part made as one box less the wall's cylinder: the plane through the contacts of the ball of radius 2

the knife edge where #851's concave R21 wall runs out tangent into the back face, chamfered 2, the part drawn as one sketch and extruded (fillets/851's construction): the plane through the contacts of the ball of radius 2

the knife edge where #851's concave R21 wall runs out tangent into the back face, chamfered 5: the plane through the contacts of the ball of radius 5

on #851's knife-edge part (tessellation/1263): the arc's top edge and the front upright at the arc, R2 together

on #851's knife-edge part (tessellation/1263): the arc's top edge R2, then the top front edge R2 as a fillet of its own

the top edge of #851's concave R21 wall rounded R 9.5, just under its height

the top edge of #851's concave R21 wall rounded R10, its full height: the round uses the wall up, its contact the bottom arc

the knife edge where #851's concave R21 wall runs out tangent into the back face, rounded R2: the ball that fits 2 from both faces, 13 back from the tip

three edges meeting at the front corner of a plate with a concave arc wall that runs out in a knife-edge tip: top front edge, arc top edge and front upright, R2 together

on #851's knife-edge part (tessellation/1263): the top front edge and the arc's top edge, R2 together

on #851's knife-edge part (tessellation/1263): the top front edge and the front-left upright, R2 together

on #851's knife-edge part (tessellation/1263): the top front edge and the front upright at the arc, R2 together

on #851's knife-edge part (tessellation/1263): the top front edge R2, then the front-left upright R2 with its tangent chain: up the first round's end arc and along the left top edge

on #851's knife-edge part (tessellation/1263): the top front edge R2, then the front upright at the arc R2 as a fillet of its own

a disc r15 x 5 revolved from a sketch, both rims rounded R2.5 in one fillet: a full round of its 5 mm wall (robustness seed 33)

a curvature-continuous (G2) fillet of size 6 on one edge of a 20 mm cube

a fillet picked on the seam where a rounded edge runs tangent into the flat top has no corner to round and is refused as an invalid pick

three r2 rounds at a box corner, curvature (g2) corner, fit reduce (the radius fits)

three r2 rounds at a box corner, curvature (g2) corner, fit taper (the radius fits)

three r5 rounds at a box corner with the curvature (g2) corner at its default setback 1.5 r: the corner patch meets the rounds and faces G2 clear of the vertices where the seams turn

three r2 rounds at a box corner, curvature (g2) corner, set back 1.5: not past where the rounds meet (r): refused

three r2 rounds at a box corner, rolling-ball corner, set back 1.5: not past where the rounds meet (r): refused

three r2 rounds at a box corner, curvature (g2) corner, set back 2: not past where the rounds meet (r): refused

three r2 rounds at a box corner, rolling-ball corner, set back 2: not past where the rounds meet (r): refused

the top edge x = 40, z = 20 of #556's box (40x40x20 joined with an R12 boss 40 high on its side) chamfered 0.8: it runs into the boss's wall, which rises above the box, and ends on it

the top edge x = 40, z = 20 of #556's box (40x40x20 joined with an R12 boss 40 high on its side) rounded R 0.8: it runs into the boss's wall, which rises above the box, and ends on it

four squares drawn edge to edge, three extruded 10 up and three 10 down and joined: the concave vertical edge at the centre of the down part chamfered 1, with its tangent chain, the up part's concave edge on the same line (action matrix (apps/solidcraft-cli/tests/action_matrix.rs): typical/up-down-join, Body1 F3:side:l12|F3:side:l5 edge.chamfer)

a vertical outer corner edge of an 80 x 50 x 30 box shelled 2 mm open at the top with a 1 x 2 lip raised on its rim, chamfered 3: wider than the wall but clear of the inside corner, its top end on the lip (action matrix (apps/solidcraft-cli/tests/action_matrix.rs): corpus/modern-plastic, Body1 F1:+y|F1:-x edge.chamfer)

a thin bar with a 3 mm concave arc in its profile, its end cut by a plane tilted 21 deg (examples/regressions/oblique_cut_of_cylinder): the edge where the arc's cylinder meets the cut (part of an ellipse) rounded R0.1 (action matrix (apps/solidcraft-cli/tests/action_matrix.rs): regressions/oblique_cut_of_cylinder, Tool F2:side:a1|F4:side:l1 edge.fillet)

two coaxial frusta joined, R10 to 6 over z 0..8 and R6 to 1 over z 8..9: the convex circle between their cones rounded r2

a cone (apex (0, 0, 10 sqrt 2), half-angle 45 deg) and a post R10 tilted 20 deg through the origin, both touching the ball R10 about the origin along circles that do not meet, joined: the concave edge where the cone leaves the post rounded r1

two pipes touching at one point (R10 about y = 0, z = -10 and R5 about x = 0, z = -5, both touching z = 0 at the origin from below), joined and cut at z = -2: the concave arc of their edge on the +y side, from (4, 6, -2) down through (0, 10, -10) to (-4, 6, -2), rounded r1

a frustum R10 narrowing at 10 deg, cut by the plane z = 15 + 0.3 x: its elliptical top rim rounded r1.5

a cylinder R10 cut by the plane z = 20 + x/2: its elliptical top rim rounded r2

a ball R10 and a frustum about z through its centre (R5 at z = 0 to R3 at z = 20) joined: the concave circle where the cone leaves the ball rounded r3

a ball R10 cut flat at z = 4: its rim rounded r2

the corner of a half cylinder's top (the top's arc, its straight edge and the upright seam where the flat face meets the cylinder) filleted 2 as a curvature-continuous (G2) fillet

the 5 slant edges of a 5-sided pyramid filleted 2 as a curvature-continuous (G2) fillet: a convex corner of 5 edges at the apex

the 4 slant edges of a 4-sided pyramid filleted 2 as a curvature-continuous (G2) fillet: a convex corner of 4 edges at the apex

a step's corner (the concave step edge, the lower box's convex front top edge, the upper box's convex upright edge) filleted 2 as a curvature-continuous (G2) fillet

the three edges at a top corner of a block drafted 15 deg (an oblique convex corner) filleted 2 as a curvature-continuous (G2) fillet

a pocket's corner (its two floor edges and the upright edge between them, all concave) filleted 2 as a curvature-continuous (G2) fillet

a pocket whose vertical corners are rounded R3 first, then its floor outline rounded R1 as one tangent chain: the round follows the corners round, a torus at each (no turn to choose)

a box's top back edge chamfered 3: the chord between the faces' contact lines, a crease with each face

the concave edge where a pipe dips into a plate chamfered 2: the chord between the contact lines on the plane and on the pipe

a boss's root on a plate rounded curvature-continuous size 2: the order-2 section of the square corner turned about the boss's axis, a certified fit

a box's top back edge rounded curvature-continuous size 3: the order-2 section meets each face with its curvature (0) and its third derivative (0), and not its fourth

the concave edge where a pipe dips into a plate rounded curvature-continuous size 2: the order-2 section meets the plane G2 (curvature 0) and the pipe G3 (its curvature 1/10 and that curvature's rate, 0)

a box's top back edge rounded r3: the ball's circle, tangent to each face with the curvature jumping by 1/3

the concave edge where a pipe dips into a plate rounded r2: the ball's circle (a cylinder along x), tangent to the plane and the pipe

the saddle edge of a tee: a branch R8 standing on a pipe R20, rounded r3

a square boss 10 x 10 x 5 on a plate, its base edges rounded R1, its vertical corners sharp: the default turn, Mitre: at each convex corner the two base rounds run on past it to the bisector plane and meet there

a pocket 20 x 10 x 5 in a plate, its floor edges rounded R1 and its vertical corners left sharp: the default turn, Mitre: at each corner the two floor rounds run on to the corner's bisector plane and meet there

the same boss's base rounds turned Swept: at each convex corner the section is revolved about the vertical corner edge through the corner's 90 degrees, a torus piece G1 to both rounds

the same pocket's floor rounds asked to turn Swept at sharp concave corners: the ball cannot pass a concave corner rounded less than its radius, so it is refused, naming the corner radius that works

a variable round from r1 to r5 along a box's top back edge: the balls' envelope, a circular cone, not their great circles

cylinder R6 tilted 0 degrees joined into a plate, its root edge rounded 1.5

cylinder R6 tilted 20 degrees joined into a plate, its root edge rounded 1.5

cylinder R6 tilted 40 degrees joined into a plate, its root edge rounded 1.5

equal pipes R8 tee, rounded 1

pipe tee oblique: main R8, branch R5 offset 0 tilted 30, intersection rounded 1

pipe tee oblique-unequal: main R8, branch R4 offset 1 tilted 45, intersection rounded 1

pipe tee offset: main R8, branch R5 offset 2 tilted 0, intersection rounded 1

pipe tee unequal: main R8, branch R5 offset 0 tilted 0, intersection rounded 1

prism over a 30 degree triangle, apex edge chamfer 2

prism over a 30 degree triangle, apex edge round 2

prism over a 45 degree triangle, apex edge chamfer 2

prism over a 45 degree triangle, apex edge round 2

prism over a 60 degree triangle, apex edge chamfer 2

prism over a 60 degree triangle, apex edge round 2

prism over a 75 degree triangle, apex edge chamfer 2

prism over a 75 degree triangle, apex edge round 2

prism over a 90 degree triangle, apex edge chamfer 2

prism over a 90 degree triangle, apex edge round 2

prism over a 105 degree triangle, apex edge chamfer 2

prism over a 105 degree triangle, apex edge round 2

prism over a 120 degree triangle, apex edge chamfer 2

prism over a 120 degree triangle, apex edge round 2

prism over a 135 degree triangle, apex edge chamfer 2

prism over a 135 degree triangle, apex edge round 2

prism over a 150 degree triangle, apex edge chamfer 2

prism over a 150 degree triangle, apex edge round 2

three pipes R4 at 120 degrees in a plane, their intersection edges rounded 1

a block's long top edge rounded curvature-continuous (Type: Curvature) size 2, running from its end face into the cylinder the block is joined to

a block's long top edge rounded r2 (Tangent chain off), running from the block's end face into the cylinder the block is joined to

the concave arc where a block's top meets the taller cylinder it is joined to, rounded r2, the block's sides meeting the wall at creases

the top rim of a cylinder that a block is joined to, rounded r2

a block's concave arc at the cylinder it is joined to rounded r2, then the block's long top edge rounded r1, which ends on the arc's round

the long top edge of a block as wide as the cylinder it is joined to, rounded r2 alone (Tangent chain off): it ends where it runs on tangentially into the concave arc at the wall

the concave half circle where a block as wide as the cylinder's diameter meets the cylinder's wall above its top, rounded r2 with its tangent chain: the half circle's pieces, ending where it runs on into the block's convex top-side edges

the concave half circle where a block as wide as the cylinder's diameter meets the cylinder's wall above its top, rounded r2 alone (Tangent chain off)

the root circle of a 10 mm tall boss rounded r10: the round uses up the boss's wall and meets its top face at its rim

the root circle of a cylindrical boss on a plate rounded r2 (a concave torus)

the top rim of a cylindrical boss on a plate rounded r2

all twelve edges of a box rounded r2 at once: the rounded box (twelve quarter cylinders, eight sphere octants)

the three edges at one box corner chamfered 2 together: three planar chamfers meeting at one point

the three edges at one box corner rounded r3, Corners: Curvature set back 3.5, just past the radius: the smallest kind of setback that builds

the three edges at one box corner rounded r3, Corners: Curvature set back exactly 3, the radius: refused, naming the least setback

the three edges at one corner of a box rounded r3 together, rolling-ball (Tangent) corner: three quarter-cylinder rounds and a sphere octant

a box's top front edge chamfered 2

a box's top front edge chamfered by two distances, flipped: 3 down the front and 1 along the top

a box's top front edge chamfered by two distances: 3 along the top (the first face, the one facing up) and 1 down the front

a 5 mm deep pocket's rim edges chamfered 4.9: the legs stop 0.1 short of the floor, so it fits

a 5 mm deep pocket's rim edges chamfered 5.5: the legs run 0.5 past the walls' bottom, so it builds as if the walls went on below the floor, a groove 0.5 deep round the floor's edge

a 5 mm deep pocket's rim edges chamfered 5: the legs use the whole walls, ending on the floor's edges, and it builds

a rectangular pocket's rim edges chamfered by two distances: 2 along the top (facing up) and 1 down the walls

a box's top front edge rounded curvature-continuous size 3, then the top side edge meeting it at the corner rounded the same way alone (Tangent chain off)

a box's top front edge rounded curvature-continuous size 3, then the top side edge meeting it at the corner rounded the same way with its tangent chain, which runs on round the first round's end curve: refused, the size 3 has no room there

a box's top front edge rounded r3, then the vertical edge meeting it rounded r2: the smaller round runs on round the bigger round's end and along the top side edge

a box's top front edge rounded r2, then the vertical edge meeting it at the corner rounded r2 (Tangent chain on)

a box's vertical edge rounded r2, then the top front edge meeting it at the corner rounded r2 (Tangent chain on)

both rims of a hole through a plate chamfered 1 in one chamfer

both rims of a hole through a plate rounded r1 in one fillet

the top rim of a hole through a 10 mm plate chamfered 10: its leg uses the hole's whole wall, ending on the bottom rim, and it builds (a cone from the top to the bottom rim)

the top rim of a hole through a 10 mm plate chamfered 9.9: its leg down the hole's wall stops 0.1 short of the bottom, so it fits

the top rim of a hole through a plate rounded curvature-continuous (Type: Curvature) size 1

the top rim of a hole through a plate rounded r1

the top rim of a hole through a 10 mm plate rounded r10: the round uses up the hole's wall and meets the bottom face at the bottom rim

the top rim of a hole through a 10 mm plate rounded r12: the round runs past the wall on its tangent side, so it is built by subtraction and trims the bottom face round the hole

an L-bracket's inside bend rounded r3, then its outside bend r8 = 3 + its thickness: concentric rounds, a bend of even thickness

an L-bracket's inside bend rounded r3, then the front edge of its upright's inner face rounded r1: the round runs on along the bend round's front arc and the foot's front top edge

an L-bracket's inside bend rounded curvature-continuous (Type: Curvature) size 3

the inside bend of an L-bracket rounded r3

an L-bracket's inside bend rounded r35, exactly as long as both inside faces: the round uses them up and meets the legs' ends at their edges

an L-bracket's inside bend rounded r36, past both inside faces (35 long): refused, naming the largest radius that fits

the outside bend of an L-bracket rounded r5

a rectangular pocket's floor edges and rim edges rounded r2 in one fillet (5 mm walls: 1 mm of flat wall left between them)

the four floor edges of a rectangular pocket rounded r2 (concave), the pocket's vertical corners left sharp

the four rim edges of a rectangular pocket rounded r2 (convex edges meeting at the pocket's concave corners)

a 5 mm deep pocket's rim edges rounded r5: the rounds use up the walls and meet the floor where the walls met it

as report-peg-front-and-concave-rounds-together-r2 on the drafted peg, whose front face runs tangent into a cone

the drafted peg's front top edge rounded r2: the round runs into the cone its drafted front face runs tangent into; reported from the app (2026-10-30, test-peg part), drafted

an r2 round of a bar's top edge whose side runs tangent into a cylinder: the round seemed to build but its body could not be measured or changed (SMLib refused the cylinder's wall coming back as a cylinder over more than a turn); reported from the app (2026-10-30, test-peg part)

as report-fillet-concave-arc-and-front-top-edge-together-solver-residues, at r5: the corner patch stands out of the bar's front face (known limit past r4); reported from the app (2026-10-30, test-peg part)

as report-fillet-concave-arc-and-front-top-edge-together-solver-residues, at r7: the corner patch stands out of the bar's front face (known limit past r4); reported from the app (2026-10-30, test-peg part)

as report-fillet-concave-arc-bar-top-into-cylinder-solver-residues, the concave arc and the bar's front top edge rounded r2 together (Constant, Tangent chain on): the corner patch where the two rounds meet stood up to 0.037 out of the bar's front face, a lip beside the line where the front face runs tangent into the cylinder; reported from the app (2026-10-30, test-peg part)

as report-fillet-concave-arc-bar-top-into-cylinder, with the sketch solver's residues of the reported design: SMLib's Nx1 corner fails (status 1001); reported from the app (2026-10-30, test-peg part)

an r2 round of the concave arc where a bar's top meets a cylinder its sides run tangent into; reported from the app (2026-10-30, test-peg part)

as report-fillet-corner-after-round-running-into-cylinder, with the sketch solver's residues of the reported design; reported from the app (2026-10-30, test-peg part)

after the round of a bar's top edge running into a cylinder, r2 rounds of the three edges at the bar's other top corner (the vertical edge, the left top edge and the round's end arc): 'one of its freeform faces can't be used'; reported from the app (2026-10-30, test-peg part)

report-fillet-curvature-three-edges-at-bar-corner-solver-residues less its setback cube: the three curvature rounds outside it, exactly; reported from the app (2026-10-30, test-peg part)

as report-fillet-curvature-three-edges-at-bar-corner, with the sketch solver's residues of the reported design; reported from the app (2026-10-30, test-peg part)

a curvature-continuous fillet (equivalent radius 2) of the three edges at a top corner of a bar whose far end runs tangent into a cylinder: it built with SMLib's own corner patch, tangent to the rounds only (a 35.8 / mm curvature jump), seen as a dome on the corner; the corner must be a G2 patch; reported from the app (2026-10-30, test-peg part)

after the round of a bar's top edge running into a cylinder, an r2 round of the edge where that round meets the cylinder's wall (tangent at its lower end only, a crease elsewhere) with its tangent chain (the concave arc of the top): it was refused as a smooth edge; reported from the app (2026-10-30, test-peg part)

report-fillet-g2-corner-of-bar-running-into-cylinder less its setback cube: the three rounds outside it, exactly; reported from the app (2026-10-30, test-peg part)

three r2 rounds at a top corner of a bar whose far end runs tangent into a cylinder, with the curvature (g2) corner set back 3: SMLib refused the result coming back (a cylinder over more than a turn); reported from the app (2026-10-30, test-peg part)

the peg's concave arc where its top meets the cylinder alone chamfered 2: the chamfer's cone runs out over the front top edge at both ends, past the point where the front face runs tangent into the cylinder; reported from the app (2026-10-30, test-peg part)

as report-peg-concave-round-then-front-round-r2 with unequal radii: the concave arc r3, then the front top edge r1.5

the peg's concave arc where its top meets the cylinder rounded r2, then its front top edge r2: the second round's tangent chain runs on up the front face's edge with the first round, to the point where that edge is tangent to the cylinder and the round must fade to nothing; reported from the app (2026-10-30, test-peg part)

the peg's front top edge and its concave arc chamfered 2 together, the convex and the concave chamfer meeting where the front face runs tangent into the cylinder; reported from the app (2026-10-30, test-peg part)

the peg's front top edge (convex) and the concave arc where its top meets the cylinder, rounded r2 together: the two edges are tangent where they meet, at the point where the front face runs tangent into the cylinder, and the corner patch there stood out of the front face; reported from the app (2026-10-30, test-peg part)

the peg's front top edge (convex) and the concave arc where its top meets the cylinder, rounded r5 together: the two edges are tangent where they meet, at the point where the front face runs tangent into the cylinder, and the corner patch there stood out of the front face; reported from the app (2026-10-30, test-peg part)

the peg's front top edge chamfered 1, then its concave arc chamfered 2: the second chamfer's chain runs on down the first chamfer's end on the cylinder, which leaves the front face tangentially; reported from the app (2026-10-30, test-peg part)

the peg's front top edge alone chamfered 2 into the cylinder: the chamfer's end on the cylinder's wall leaves the front face's contact line tangentially (a zero-angle corner of the chamfer face) where the front face runs tangent into the cylinder; reported from the app (2026-10-30, test-peg part)

the peg's front top edge alone given a curvature-continuous round (equivalent radius 2) running into the cylinder: its section leaves the front face with zero curvature, so its end on the cylinder's wall is a semicubical cusp (x - 40 ~ (8 - z)^1.5) where the front face runs tangent into the cylinder; reported from the app (2026-10-30, test-peg part)

as report-peg-front-round-then-concave-round-r2 with unequal radii: the front top edge r1.5, then the concave arc r3

the peg's front top edge rounded r2, then the concave arc where its top meets the cylinder r2: the second round's tangent chain runs on down the first round's end on the cylinder, to the point where that end is tangent to the front face and the round must fade to nothing; reported from the app (2026-10-30, test-peg part)

as report-peg-front-and-concave-rounds-together-r2, on the peg exported to STEP and read back

the peg exported to STEP and read back, its front top edge then rounded r2 into the cylinder: the same round as on the native body; reported from the app (2026-10-30, test-peg part)

a cone (r 15 at x = 0, apex at x = 40) shelled 2 with its base open: before tangency-labs/solidcraft#11774 was fixed the shell refused with status 1001, because the offset cone truncated at its new apex kept its parameter box at the box's other end, the rim's UV moved, and the executive could not pair the rim edge use with its offset copy

Offset Face on one piece of a split face moves only that piece, not the coplanar neighbour

Offset Face moves two adjacent side walls of a 10 mm box out 1 mm, so each wall grows to meet the other

Offset Face moves the top of a tapered cylinder out 2 mm, so the top grows along the cone

a 47.5x45x30 box with a cylinder r7.5 joined on its side whose axis lies in the plane of the box's front face (y=0), shelled 1 mm open at the bottom

a 50x50x30 box with r10 vertical rounds, a 5 mm chamfer round the base and a 4 mm fillet where the chamfer meets the wall, shelled 2 mm open at the top

a sphere split into two hemispheres; shelling the flat face of one must hollow that half only, the other half stays solid

a shell opened by a point pick keeps opening only that face after a parameter edit moves the body under the stored point

Offset Face on a sphere's round face

a cone frustum (r20 at the base, r15 at the top, 30 tall) shelled 2 mm open at the top

a 40 x 30 x 10 box, its bottom outline rounded R2.4, shelled 2 mm open at the bottom: where the round meets the open bottom the cavity's wall steps down along the bottom's normal (a step wall), so the round meets it at 90 degrees at the opening's edge and the opening is exactly the picked face

a 40 x 30 x 10 box, its bottom outline rounded R2, shelled 2 mm open at the bottom: where the round meets the open bottom the cavity's wall steps down along the bottom's normal (a step wall), so the round meets it at 90 degrees at the opening's edge and the opening is exactly the picked face

a 40 x 30 x 10 box, its bottom outline rounded R1.5, shelled 2 mm open at the bottom: the round is smaller than the wall, so a 0.5 mm rim is left

Offset Face on the outer cylindrical wall of a tube (the picker only accepted planar faces)

Offset Face on a boss wall whose base has a 2 mm fillet: the boss grows to r 11 and the fillet follows

a box split in two at z=10, then each half shelled 2 mm open on the mating face

a loft between a 40 mm and a 20 mm square 80 mm apart, shelled 2 mm open at the small end

text debossed 0.6 mm into the flat flange top of a filleted and shelled tapered housing, well away from the curved walls

shell with no face removed: a closed hollow body with a sealed internal void

plate with a through hole shelled 2.5 mm with only the hole's wall removed

a cone frustum (r 10 at the bottom, 20 at the top, 38.1 high) shelled 0.125 with both its ends removed, leaving a conical tube: truck refused it ('a corner whose faces don't meet the same way after the move')

the top face of a 40x30x10 block whose four top edges are rounded r3, offset 19 mm up: truck refused it ('a corner whose faces don't meet the same way after the move')

a vase revolved from a fit-point spline wall, shelled 2 mm from its flat top: truck refused any free-form wall ('offset: only bodies with planes, cylinders, cones, spheres and tori')

a 2 mm shell, open at the bottom, of a 60x40x10 block with an r3 through hole 4 mm from its front face, beside a 10x10 notch at that edge: the walls from the hole and from the front would meet along a line, so the right answer is a refusal that says so (truck took 75 s and failed ('boolean Cut: no result'); SMLib refused it, but as 'status 1027')

a chamfered O6 through hole in a block (synthetic: the report's part was an imported STEP), its wall and chamfer deleted: refused ('face 8 borders face 7, which is curved; only planar neighbours can extend')

an open sheet of two planar walls at a right angle (30 and 20 mm, 20 deep) thickened 2 mm toward the inside of its corner: truck refused it ('thickening into an inside corner across a sharp edge'); the outside worked

the four rounds of a block's top edges (r2, sharp vertical edges) deleted, so the planar top and sides extend to close the gap: refused ('only planar neighbours can extend to close the gap yet')

the frame of examples/regressions/ring_cut_below_recess_thin_floor (a recess from the top, a ring cut from the bottom, a 0.5 mm floor between) shelled 0.5 mm open at the ring cut's outer wall (action matrix (apps/solidcraft-cli/tests/action_matrix.rs): regressions/ring_cut_below_recess_thin_floor, Frame/F6:side:l2 face.shell)

a 8x5 bar swept along a line-arc-line path (quarter circle r30 between two 30 mm legs), shelled 0.5 mm open at its start

#616's lid (a 2.4 mm plate with R3 corners, a 3 mm skirt, three openings and four 1.6 mm ribs, all boxes) shelled 0.5 mm with a rib's outer side face open (action matrix (apps/solidcraft-cli/tests/action_matrix.rs): corpus/issue-616-lid-ribs, Lid/F8:-x face.shell)

Offset Face on a planar end of a body that has a spline-outlined boss far from the moved face

the same end offset, then the boss and the box beyond x=24 cut away, which leaves an analytic body

the lower top of a stepped block replaced by the plane of the higher top: the step wall closes up and the tops become one face

a block's top face replaced by the plane z=15

a 70 x 50 x 30 box with R6 vertical rounds shelled 2 mm open on top, shelled again 0.5 mm open at an inner wall: its 2 mm walls hollowed (action matrix (apps/solidcraft-cli/tests/action_matrix.rs): typical/filleted-shelled-box, Body1/F4:inner:F2:side:l1 face.shell)

a 42.5 x 20 x 27.5 plate closed by a half-round side (r10), a blind hole r5 drilled in through that side, shelled 2 mm open at the far end: the edge where the hole's wall meets the arc side is neither a line nor an arc

a slab 140 x 90 x 50 with a 30 mm pocket whose floor falls 1 deg from its edges to a central drain (four faces meet at each of the pocket floor's concave corners), shelled 3 mm open at the top

a trough whose floor falls 1 deg from its edges to a central drain (four faces meet at each bottom corner and at the drain), a tab joined on one end, shelled 2 mm open at the top

four squares drawn edge to edge, three extruded 10 up and three 10 down and joined, shelled 0.346 mm open at a side wall (action matrix (apps/solidcraft-cli/tests/action_matrix.rs): typical/up-down-join, Body1/F2:side:l1 face.shell)