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kernel-cases: threads cases from modelled-thread reports (2 of 2), skipped sources

Browse Source 
The rest of the thread cases (holes at the nominal size, shafts and holes
off the thread's size, the crash and sketch-attachment repros) and the
triage of the sources that are not kernel geometry.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
This commit is contained in:
Brennen Herbruck
2026-10-21 06:17:39 -04:00
committed by jyviko
parent 04135da965
commit ead88e582b
25 changed files with 1381 additions and 0 deletions
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tests/kernel-cases/threads/2406-modelled-m8-thread-in-6.8mm-pilot-hole/expected.json
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{
"sources": [
"tangency-labs/solidcraft#2406"
],
"what": "an M8 modelled thread in a 6.8 mm pilot hole (the case where the thread 'was not visible')",
"source": "analytic",
"method": "ISO 68-1 basic profile: H = P sqrt3/2, basic depth 5H/8. External groove (the space between teeth): a trapezoid P/4 wide at the root radius d/2 - 5H/8, widening by 2 tan30 per unit of radius to 7P/8 at d/2. Internal groove: P/8 wide at the major radius d/2, widening to 3P/4 at the minor radius, cut only where there is material (r >= hole radius). Pappus: volume per turn = 2 pi A rc (A the trapezoid area, rc its centroid radius from the axis); a helical sweep of L/P turns removes exactly (L/P) x that, where each end of the thread is a free end or lies inside material. Block 20x20x10 with a 6.8 mm through hole (rho=3.4, a 0.6 mm groove depth at M8x1.25), M8 over the full 10 mm (8 turns, both ends free): V = 4000 - pi 3.4^2 10 - 8 x V_turn(clipped at r=3.4) = 3636.8319 - 8 x 6.88085 = 3581.7851 mm3. COM on the axis at z=5. Tolerance 1%: a modelled thread is a faceted helical solid (radial chord error up to 1% of the pitch on every wall, i.e. a volume deficit of about 4/3 x sag/R).",
"outcome": "solid",
"body_count": 1,
"volume_mm3": 3581.7851,
"center_of_mass": [
0,
0,
5.0
],
"tolerance": {
"rel": 0.01
},
"bbox": {
"min": [
-10,
-10,
0
],
"max": [
10,
10,
10
]
}
}
tests/kernel-cases/threads/2406-modelled-m8-thread-in-6.8mm-pilot-hole/recipe.json
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{
"commands": [
{
"command": "solid.box",
"params": {
"corner": [
-10,
-10,
0
],
"length": 20,
"width": 20,
"height": 10,
"body_name": "Block"
}
},
{
"command": "solid.hole",
"params": {
"position": [
0,
0,
10
],
"diameter": 6.8
}
},
{
"command": "solid.thread",
"params": {
"face": [
3.4,
0,
5.0
],
"designation": "M8",
"modeled": true
}
}
]
}
tests/kernel-cases/threads/2526-three-modelled-threads-in-one-body/expected.json
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{
"sources": [
"tangency-labs/solidcraft#2526"
],
"what": "three modelled threads, internal and external, in one body with a hub and a plain hole beside the bore (each thread used to facet the rest of the part and the next thread was refused)",
"source": "analytic",
"method": "ISO 68-1 basic profile: H = P sqrt3/2, basic depth 5H/8. External groove (the space between teeth): a trapezoid P/4 wide at the root radius d/2 - 5H/8, widening by 2 tan30 per unit of radius to 7P/8 at d/2. Internal groove: P/8 wide at the major radius d/2, widening to 3P/4 at the minor radius, cut only where there is material (r >= hole radius). Pappus: volume per turn = 2 pi A rc (A the trapezoid area, rc its centroid radius from the axis); a helical sweep of L/P turns removes exactly (L/P) x that, where each end of the thread is a free end or lies inside material. Block 40x40x20, a hub R=10 h=10 on top, a 6.75 mm bore through both (30 long), a 3.3 mm hole through the block at (15,15). Three modelled threads on one body: M8 over 8 mm of the bore from the free top end (8/1.25 = 6.4 turns), M4 over the whole 20 mm of the 3.3 mm hole (20/0.7 turns), M20x2.5 over 6 mm of the hub from its free top end (2.4 turns). Plain solid: 32000 + pi 10^2 10 - pi 3.375^2 30 - pi 1.65^2 20 = 33896.9918. Grooves: 46.9780 + 32.4641 + 271.1296. V = 33546.4201 mm3. Tolerance 1%: a modelled thread is a faceted helical solid (radial chord error up to 1% of the pitch on every wall, i.e. a volume deficit of about 4/3 x sag/R).",
"outcome": "solid",
"body_count": 1,
"volume_mm3": 33546.4201,
"tolerance": {
"rel": 0.01
},
"bbox": {
"min": [
-20,
-20,
0
],
"max": [
20,
20,
30
]
}
}
tests/kernel-cases/threads/2526-three-modelled-threads-in-one-body/recipe.json
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{
"commands": [
{
"command": "solid.box",
"params": {
"corner": [
-20,
-20,
0
],
"length": 40,
"width": 40,
"height": 20,
"body_name": "Block"
}
},
{
"command": "solid.cylinder",
"params": {
"radius": 10,
"height": 10,
"base": [
0,
0,
20
],
"operation": "join",
"targets": [
"Block"
]
}
},
{
"command": "solid.hole",
"params": {
"position": [
0,
0,
30
],
"diameter": 6.75
}
},
{
"command": "solid.hole",
"params": {
"position": [
15,
15,
20
],
"diameter": 3.3
}
},
{
"command": "solid.thread",
"params": {
"face": [
3.375,
0,
29
],
"designation": "M8",
"length": 8,
"modeled": true
}
},
{
"command": "solid.thread",
"params": {
"face": [
16.65,
15,
10
],
"designation": "M4",
"modeled": true
}
},
{
"command": "solid.thread",
"params": {
"face": [
10,
0,
29
],
"designation": "M20",
"length": 6,
"modeled": true
}
}
]
}
tests/kernel-cases/threads/2705-m14-thread-on-14.6mm-boss-turned-to-major/expected.json
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{
"sources": [
"tangency-labs/solidcraft#2705"
],
"what": "a modelled M14 thread on a 14.6 mm boss, slightly thicker than the thread (refused: the face is too far from the thread's diameter)",
"source": "analytic",
"method": "ISO 68-1 basic profile: H = P sqrt3/2, basic depth 5H/8. External groove (the space between teeth): a trapezoid P/4 wide at the root radius d/2 - 5H/8, widening by 2 tan30 per unit of radius to 7P/8 at d/2. Internal groove: P/8 wide at the major radius d/2, widening to 3P/4 at the minor radius, cut only where there is material (r >= hole radius). Pappus: volume per turn = 2 pi A rc (A the trapezoid area, rc its centroid radius from the axis); a helical sweep of L/P turns removes exactly (L/P) x that, where each end of the thread is a free end or lies inside material. A 14.6 mm boss (R=7.3, 15 tall) on a 20x20x4 plate takes a modelled M14 (P=2) over 10 mm from its free top end. The boss is thicker than the major diameter, so a die turns it down to 14 mm over the threaded length first (ring pi (7.3^2 - 7^2) 10 = 134.7743) and the groove is cut from there (5 turns, 50.18900 each). V = 1600 + pi 7.3^2 15 - 134.7743 - 5 x 50.18900 = 3725.5127 mm3. The groove's last end may nick the unturned boss by well under 0.2 mm3. Tolerance 1%: a modelled thread is a faceted helical solid (radial chord error up to 1% of the pitch on every wall, i.e. a volume deficit of about 4/3 x sag/R).",
"outcome": "solid",
"body_count": 1,
"volume_mm3": 3725.5127,
"tolerance": {
"rel": 0.01
},
"bbox": {
"min": [
-10,
-10,
0
],
"max": [
10,
10,
19
]
}
}
tests/kernel-cases/threads/2705-m14-thread-on-14.6mm-boss-turned-to-major/recipe.json
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{
"commands": [
{
"command": "solid.box",
"params": {
"corner": [
-10,
-10,
0
],
"length": 20,
"width": 20,
"height": 4,
"body_name": "Part"
}
},
{
"command": "solid.cylinder",
"params": {
"radius": 7.3,
"height": 15,
"base": [
0,
0,
4
],
"operation": "join",
"targets": [
"Part"
]
}
},
{
"command": "solid.thread",
"params": {
"face": [
7.3,
0,
17
],
"designation": "M14",
"length": 10,
"modeled": true
}
}
]
}
tests/kernel-cases/threads/2822-modelled-thread-in-filleted-cube/expected.json
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{
"sources": [
"tangency-labs/solidcraft#2822"
],
"what": "a modelled M3 thread in a hole through a block whose vertical edges are rounded (the fillets showed as black lines after the thread)",
"source": "analytic",
"method": "ISO 68-1 basic profile: H = P sqrt3/2, basic depth 5H/8. External groove (the space between teeth): a trapezoid P/4 wide at the root radius d/2 - 5H/8, widening by 2 tan30 per unit of radius to 7P/8 at d/2. Internal groove: P/8 wide at the major radius d/2, widening to 3P/4 at the minor radius, cut only where there is material (r >= hole radius). Pappus: volume per turn = 2 pi A rc (A the trapezoid area, rc its centroid radius from the axis); a helical sweep of L/P turns removes exactly (L/P) x that, where each end of the thread is a free end or lies inside material. Cube 20x20x10 with its four vertical edges rounded R2: each removes (1 - pi/4) R^2 x 10 = 8.5841, total 34.3363. A 2.5 mm through hole (the M3 tap drill, rho=1.25) with M3 (P=0.5) over the whole 10 mm (20 turns): V = 4000 - 34.3363 - pi 1.25^2 10 - 20 x 0.43729 = 3907.8305 mm3. By symmetry COM = (10,10,5). Tolerance 1%: a modelled thread is a faceted helical solid (radial chord error up to 1% of the pitch on every wall, i.e. a volume deficit of about 4/3 x sag/R).",
"outcome": "solid",
"body_count": 1,
"volume_mm3": 3907.8305,
"center_of_mass": [
10,
10,
5
],
"tolerance": {
"rel": 0.01
},
"bbox": {
"min": [
0,
0,
0
],
"max": [
20,
20,
10
]
}
}
tests/kernel-cases/threads/2822-modelled-thread-in-filleted-cube/recipe.json
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{
"commands": [
{
"command": "sketch.create",
"params": {
"plane": "XY"
}
},
{
"command": "sketch.rectangle.two_point",
"params": {
"p0": [
0,
0
],
"p1": [
20,
20
]
}
},
{
"command": "sketch.finish",
"params": {}
},
{
"command": "solid.extrude",
"params": {
"distance": 10,
"body_name": "Cube"
}
},
{
"command": "solid.fillet",
"params": {
"edges": [
[
0,
0,
5
],
[
20,
0,
5
],
[
20,
20,
5
],
[
0,
20,
5
]
],
"radius": 2
}
},
{
"command": "solid.hole",
"params": {
"position": [
10,
10,
10
],
"diameter": 2.5
}
},
{
"command": "solid.thread",
"params": {
"face": [
11.25,
10,
5
],
"designation": "M3",
"modeled": true
}
}
]
}
tests/kernel-cases/threads/2969-m48x0.75-thread-in-48mm-hole/expected.json
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{
"sources": [
"tangency-labs/solidcraft#2969"
],
"what": "a modelled M48x0.75 internal thread in a 48 mm hole (a workflow Fusion accepts)",
"source": "analytic",
"method": "ISO 68-1 basic profile: H = P sqrt3/2, basic depth 5H/8. External groove (the space between teeth): a trapezoid P/4 wide at the root radius d/2 - 5H/8, widening by 2 tan30 per unit of radius to 7P/8 at d/2. Internal groove: P/8 wide at the major radius d/2, widening to 3P/4 at the minor radius, cut only where there is material (r >= hole radius). Pappus: volume per turn = 2 pi A rc (A the trapezoid area, rc its centroid radius from the axis); a helical sweep of L/P turns removes exactly (L/P) x that, where each end of the thread is a free end or lies inside material. A 48 mm hole through a D54 x 3 disc, drawn at the thread's nominal size, takes a modelled M48x0.75: the hole is first filled to the tap drill (major - pitch = 47.25 mm, rho=23.625), then the groove is cut, the same thread as in a hole drilled at the tap drill. Whole length, both ends free (4 turns): V = pi 27^2 3 - pi 23.625^2 3 - 4 x V_turn(clipped at rho) = 6870.6631 - 5260.3515 - 4 x 17.37563 = 1540.8091 mm3. The thin lips a tap leaves at each end are below 0.2% of the volume. Tolerance 1%: a modelled thread is a faceted helical solid (radial chord error up to 1% of the pitch on every wall, i.e. a volume deficit of about 4/3 x sag/R).",
"outcome": "solid",
"body_count": 1,
"volume_mm3": 1540.8091,
"tolerance": {
"rel": 0.01
},
"bbox": {
"min": [
-27,
-27,
0
],
"max": [
27,
27,
3
]
},
"center_of_mass": [
0,
0,
1.5
]
}
tests/kernel-cases/threads/2969-m48x0.75-thread-in-48mm-hole/recipe.json
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{
"commands": [
{
"command": "solid.cylinder",
"params": {
"radius": 27,
"height": 3,
"body_name": "Nut"
}
},
{
"command": "solid.hole",
"params": {
"position": [
0,
0,
3
],
"diameter": 48
}
},
{
"command": "solid.thread",
"params": {
"face": [
24.0,
0,
1.5
],
"designation": "M48x0.75",
"modeled": true
}
}
]
}
tests/kernel-cases/threads/3311-two-tapped-holes-both-modelled-threaded/expected.json
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{
"sources": [
"tangency-labs/solidcraft#3311"
],
"what": "a second modelled thread on the same body (the first thread faceted every other hole), over each hole's full length",
"source": "analytic",
"method": "ISO 68-1 basic profile: H = P sqrt3/2, basic depth 5H/8. External groove (the space between teeth): a trapezoid P/4 wide at the root radius d/2 - 5H/8, widening by 2 tan30 per unit of radius to 7P/8 at d/2. Internal groove: P/8 wide at the major radius d/2, widening to 3P/4 at the minor radius, cut only where there is material (r >= hole radius). Pappus: volume per turn = 2 pi A rc (A the trapezoid area, rc its centroid radius from the axis); a helical sweep of L/P turns removes exactly (L/P) x that, where each end of the thread is a free end or lies inside material. Block 40x20x9 with two M5 tapped holes (drill 4.2, rho=2.1), each modelled-threaded over its whole 9 mm (11.25 turns, both ends free): V = 7200 - 2 pi 2.1^2 9 - 2 x 11.25 x V_turn(clipped at 2.1) = 6950.6204 - 22.5 x 1.87431 = 6908.4483 mm3. Tolerance 1%: a modelled thread is a faceted helical solid (radial chord error up to 1% of the pitch on every wall, i.e. a volume deficit of about 4/3 x sag/R).",
"outcome": "solid",
"body_count": 1,
"volume_mm3": 6908.4483,
"tolerance": {
"rel": 0.01
},
"bbox": {
"min": [
0,
0,
0
],
"max": [
40,
20,
9
]
}
}
tests/kernel-cases/threads/3311-two-tapped-holes-both-modelled-threaded/recipe.json
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{
"commands": [
{
"command": "solid.box",
"params": {
"corner": [
0,
0,
0
],
"length": 40,
"width": 20,
"height": 9,
"body_name": "Block"
}
},
{
"command": "solid.hole",
"params": {
"position": [
10,
10,
9
],
"thread": "M5"
}
},
{
"command": "solid.hole",
"params": {
"position": [
30,
10,
9
],
"thread": "M5"
}
},
{
"command": "solid.thread",
"params": {
"face": [
12.1,
10,
4.5
],
"designation": "M5",
"modeled": true
}
},
{
"command": "solid.thread",
"params": {
"face": [
32.1,
10,
4.5
],
"designation": "M5",
"modeled": true
}
}
]
}
tests/kernel-cases/threads/3366-m20-thread-in-20mm-hole/expected.json
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{
"sources": [
"tangency-labs/solidcraft#3366",
"tangency-labs/solidcraft#3367"
],
"what": "a modelled M20 internal thread in a 20 mm hole, made after the 20 mm cylinder's own thread",
"source": "analytic",
"method": "ISO 68-1 basic profile: H = P sqrt3/2, basic depth 5H/8. External groove (the space between teeth): a trapezoid P/4 wide at the root radius d/2 - 5H/8, widening by 2 tan30 per unit of radius to 7P/8 at d/2. Internal groove: P/8 wide at the major radius d/2, widening to 3P/4 at the minor radius, cut only where there is material (r >= hole radius). Pappus: volume per turn = 2 pi A rc (A the trapezoid area, rc its centroid radius from the axis); a helical sweep of L/P turns removes exactly (L/P) x that, where each end of the thread is a free end or lies inside material. A 20 mm hole through a D48 x 10 disc, drawn at the thread's nominal size, takes a modelled M20: the hole is first filled to the tap drill (major - pitch = 17.5 mm, rho=8.75), then the groove is cut, the same thread as in a hole drilled at the tap drill. Whole length, both ends free (4 turns): V = pi 24^2 10 - pi 8.75^2 10 - 4 x V_turn(clipped at rho) = 18095.5737 - 2405.2819 - 4 x 74.96751 = 15390.4218 mm3. The thin lips a tap leaves at each end are below 0.2% of the volume. Tolerance 1%: a modelled thread is a faceted helical solid (radial chord error up to 1% of the pitch on every wall, i.e. a volume deficit of about 4/3 x sag/R).",
"outcome": "solid",
"body_count": 1,
"volume_mm3": 15390.4218,
"tolerance": {
"rel": 0.01
},
"bbox": {
"min": [
-24,
-24,
0
],
"max": [
24,
24,
10
]
},
"center_of_mass": [
0,
0,
5.0
]
}
tests/kernel-cases/threads/3366-m20-thread-in-20mm-hole/recipe.json
+35
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{
"commands": [
{
"command": "solid.cylinder",
"params": {
"radius": 24,
"height": 10,
"body_name": "Nut"
}
},
{
"command": "solid.hole",
"params": {
"position": [
0,
0,
10
],
"diameter": 20
}
},
{
"command": "solid.thread",
"params": {
"face": [
10.0,
0,
5.0
],
"designation": "M20",
"modeled": true
}
}
]
}
tests/kernel-cases/threads/3914-sketch-on-top-face-of-threaded-rounded-block/expected.json
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{
"sources": [
"tangency-labs/solidcraft#3914"
],
"what": "Create Sketch on the top face of a block with a modelled thread and rounded corners, then a boss from it",
"source": "analytic",
"method": "ISO 68-1 basic profile: H = P sqrt3/2, basic depth 5H/8. External groove (the space between teeth): a trapezoid P/4 wide at the root radius d/2 - 5H/8, widening by 2 tan30 per unit of radius to 7P/8 at d/2. Internal groove: P/8 wide at the major radius d/2, widening to 3P/4 at the minor radius, cut only where there is material (r >= hole radius). Pappus: volume per turn = 2 pi A rc (A the trapezoid area, rc its centroid radius from the axis); a helical sweep of L/P turns removes exactly (L/P) x that, where each end of the thread is a free end or lies inside material. Box 20^3, a D5 hole 20 deep (rho=2.5), M6 (P=1) over the whole 20 mm (20 turns, both ends free), the four vertical edges rounded R2 (68.6726), then a sketch on the top face with a 4x4 rectangle at least 4 mm from the hole centre, extruded 5 mm and joined: +80. V = 8000 - 68.6726 - pi 2.5^2 20 - 20 x 3.49832 + 80 = 7548.6619 mm3. Create Sketch on that face was refused ('its history can't tell it apart from other faces'). Tolerance 1%: a modelled thread is a faceted helical solid (radial chord error up to 1% of the pitch on every wall, i.e. a volume deficit of about 4/3 x sag/R).",
"outcome": "solid",
"body_count": 1,
"volume_mm3": 7548.6619,
"tolerance": {
"rel": 0.01
},
"bbox": {
"min": [
0,
0,
0
],
"max": [
20,
20,
25
]
}
}
tests/kernel-cases/threads/3914-sketch-on-top-face-of-threaded-rounded-block/recipe.json
+109
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{
"commands": [
{
"command": "solid.box",
"params": {
"corner": [
0,
0,
0
],
"length": 20,
"width": 20,
"height": 20,
"body_name": "Block"
}
},
{
"command": "solid.hole",
"params": {
"position": [
10,
10,
20
],
"diameter": 5,
"depth": 20
}
},
{
"command": "solid.thread",
"params": {
"face": [
12.5,
10,
10
],
"designation": "M6",
"modeled": true
}
},
{
"command": "solid.fillet",
"params": {
"edges": [
[
0,
0,
10
],
[
20,
0,
10
],
[
20,
20,
10
],
[
0,
20,
10
]
],
"radius": 2
}
},
{
"command": "sketch.create",
"params": {
"plane": {
"face": [
5,
5,
20
]
}
}
},
{
"command": "sketch.rectangle.two_point",
"params": {
"p0": [
3,
3
],
"p1": [
7,
7
]
}
},
{
"command": "sketch.finish",
"params": {}
},
{
"command": "solid.extrude",
"params": {
"distance": 5,
"operation": "join",
"targets": [
"Block"
]
}
}
]
}
tests/kernel-cases/threads/3952-modelled-thread-in-blind-hole-of-revolved-ring/expected.json
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{
"sources": [
"tangency-labs/solidcraft#3952"
],
"what": "a modelled thread in a small blind hole drilled into a revolved ring, off its axis ('faceted boolean: inconsistent volumes')",
"source": "analytic",
"method": "ISO 68-1 basic profile: H = P sqrt3/2, basic depth 5H/8. External groove (the space between teeth): a trapezoid P/4 wide at the root radius d/2 - 5H/8, widening by 2 tan30 per unit of radius to 7P/8 at d/2. Internal groove: P/8 wide at the major radius d/2, widening to 3P/4 at the minor radius, cut only where there is material (r >= hole radius). Pappus: volume per turn = 2 pi A rc (A the trapezoid area, rc its centroid radius from the axis); a helical sweep of L/P turns removes exactly (L/P) x that, where each end of the thread is a free end or lies inside material. Revolved ring R12..30, 30 tall: pi (30^2 - 12^2) 30 = 71251.3214. A D2.5 flat-bottomed hole 8 deep at 21 mm from the axis (pi 1.25^2 8 = 39.2699), M3 (P=0.5, rho=1.25) over the hole's whole 8 mm (16 turns): 16 x 0.43729. The blind end can shift the groove's last end by under 0.25 mm3. V = 71205.0548 mm3. Tolerance 1e-3 (the ring dominates the volume; the check is that the thread builds a valid solid, which it once refused: faceted boolean: inconsistent volumes).",
"outcome": "solid",
"body_count": 1,
"volume_mm3": 71205.0548,
"bbox": {
"min": [
-30,
-30,
0
],
"max": [
30,
30,
30
]
}
}
tests/kernel-cases/threads/3952-modelled-thread-in-blind-hole-of-revolved-ring/recipe.json
+90
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@@ -0,0 +1,90 @@
{
"commands": [
{
"command": "sketch.create",
"params": {
"plane": "XZ",
"name": "Sketch1"
}
},
{
"command": "sketch.line",
"params": {
"points": [
[
12,
0
],
[
30,
0
],
[
30,
-30
],
[
12,
-30
]
],
"closed": true
}
},
{
"command": "sketch.finish",
"params": {}
},
{
"command": "solid.revolve",
"params": {
"sketch": "Sketch1",
"axis": "Z"
}
},
{
"command": "sketch.create",
"params": {
"plane": "XY",
"offset": "30 mm",
"name": "Sketch2"
}
},
{
"command": "sketch.circle.center",
"params": {
"center": [
21,
0
],
"diameter": 2.5
}
},
{
"command": "sketch.finish",
"params": {}
},
{
"command": "solid.extrude",
"params": {
"sketch": "Sketch2",
"profiles": "all",
"distance": 8,
"direction": "negative",
"operation": "cut"
}
},
{
"command": "solid.thread",
"params": {
"face": [
22.25,
0,
26
],
"designation": "M3",
"modeled": true
}
}
]
}
tests/kernel-cases/threads/4149-internal-thread-below-counterbore-filleted-rim/expected.json
+26
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@@ -0,0 +1,26 @@
{
"sources": [
"tangency-labs/solidcraft#4149"
],
"what": "a modelled M10x1.5 internal thread, full length of the bore below a counterbore, in a cylinder with its rim rounded (stack overflow)",
"source": "analytic",
"method": "ISO 68-1 basic profile: H = P sqrt3/2, basic depth 5H/8. External groove (the space between teeth): a trapezoid P/4 wide at the root radius d/2 - 5H/8, widening by 2 tan30 per unit of radius to 7P/8 at d/2. Internal groove: P/8 wide at the major radius d/2, widening to 3P/4 at the minor radius, cut only where there is material (r >= hole radius). Pappus: volume per turn = 2 pi A rc (A the trapezoid area, rc its centroid radius from the axis); a helical sweep of L/P turns removes exactly (L/P) x that, where each end of the thread is a free end or lies inside material. Cylinder D40 h=30; a 8.5 mm through hole with a D18 x 5 counterbore (hole volume pi(9^2 5 + 4.25^2 25) = 2690.9705); the top outer edge rounded R3: removed = 2 pi (R - xbar) A with A = r^2 (1 - pi/4) = 1.9314 and the removed corner's centroid xbar = r (5/6 - pi/4)/(1 - pi/4) = 0.6701 from the corner, so 234.5769. M10x1.5 over the 25 mm of the bore below the counterbore (16.667 turns, rho=4.25): the thread ends at the counterbore floor, so the last groove end may stop up to half a groove short of it; that is under 0.3 mm of pitch, below 4 mm3. V = 37699.1118 - 234.5769 - 2690.9705 - 16.667 x 13.26888 = 34552.4164 mm3. Tolerance 0.3%: faceted helix as for the other thread cases; that is 110 mm3 on this large body (the groove itself is 192 mm3), and the end effect and the faceting stay far below it.",
"outcome": "solid",
"body_count": 1,
"volume_mm3": 34552.4164,
"tolerance": {
"rel": 0.003
},
"bbox": {
"min": [
-20,
-20,
0
],
"max": [
20,
20,
30
]
}
}
tests/kernel-cases/threads/4149-internal-thread-below-counterbore-filleted-rim/recipe.json
+52
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@@ -0,0 +1,52 @@
{
"commands": [
{
"command": "solid.cylinder",
"params": {
"radius": 20,
"height": 30,
"body_name": "Part"
}
},
{
"command": "solid.hole",
"params": {
"position": [
0,
0,
30
],
"diameter": 8.5,
"type": "counterbore",
"cb_diameter": 18,
"cb_depth": 5
}
},
{
"command": "solid.fillet",
"params": {
"edges": [
[
20,
0,
30
]
],
"radius": 3
}
},
{
"command": "solid.thread",
"params": {
"face": [
0,
-4.25,
12.5
],
"designation": "M10x1.5",
"length": 25,
"modeled": true
}
}
]
}
tests/kernel-cases/threads/602-fillet-hex-head-beside-modelled-thread/expected.json
+27
View File
@@ -0,0 +1,27 @@
{
"sources": [
"tangency-labs/solidcraft#602",
"tangency-labs/solidcraft#618"
],
"what": "rounding the top edges of a hex head on a shaft with a modelled thread (it froze the app)",
"source": "analytic",
"method": "ISO 68-1 basic profile: H = P sqrt3/2, basic depth 5H/8. External groove (the space between teeth): a trapezoid P/4 wide at the root radius d/2 - 5H/8, widening by 2 tan30 per unit of radius to 7P/8 at d/2. Internal groove: P/8 wide at the major radius d/2, widening to 3P/4 at the minor radius, cut only where there is material (r >= hole radius). Pappus: volume per turn = 2 pi A rc (A the trapezoid area, rc its centroid radius from the axis); a helical sweep of L/P turns removes exactly (L/P) x that, where each end of the thread is a free end or lies inside material. Shaft D5 h=10 plus a hexagonal head of apothem a=2 (area 2 sqrt3 a^2 = 13.8564), h=3. M5 (P=0.8) over 4 mm from the free bottom end (5 turns): 5 x 2.84480. The six top edges rounded R=r=0.3 with the vertical edges left sharp: the section at depth y below the top is a hexagon of apothem a - d(y), d = r - sqrt(r^2 - (r-y)^2); removed = 2 sqrt3 int (2 a d - d^2) dy = 2 sqrt3 [2 a r^2 (1 - pi/4) - r^3 (5/3 - pi/2)] = 0.25866. V = pi 2.5^2 10 + 41.5692 - 5 x 2.84480 - 0.25866 = 223.4361 mm3. Tolerance 1%: a modelled thread is a faceted helical solid (radial chord error up to 1% of the pitch on every wall, i.e. a volume deficit of about 4/3 x sag/R).",
"outcome": "solid",
"body_count": 1,
"volume_mm3": 223.4361,
"tolerance": {
"rel": 0.01
},
"bbox": {
"min": [
-2.5,
-2.5,
0
],
"max": [
2.5,
2.5,
13
]
}
}
tests/kernel-cases/threads/602-fillet-hex-head-beside-modelled-thread/recipe.json
+127
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@@ -0,0 +1,127 @@
{
"commands": [
{
"command": "sketch.create",
"params": {
"plane": "XY"
}
},
{
"command": "sketch.circle.center",
"params": {
"center": [
0,
0
],
"diameter": 5
}
},
{
"command": "sketch.finish",
"params": {}
},
{
"command": "solid.extrude",
"params": {
"distance": 10,
"body_name": "Screw"
}
},
{
"command": "sketch.create",
"params": {
"plane": {
"face": [
0,
0,
10
]
}
}
},
{
"command": "sketch.polygon.circumscribed",
"params": {
"center": [
0,
0
],
"radius": 2,
"sides": 6
}
},
{
"command": "sketch.finish",
"params": {}
},
{
"command": "solid.extrude",
"params": {
"distance": 3,
"profiles": [
{
"point": [
0,
0
]
}
],
"operation": "join",
"targets": [
"Screw"
]
}
},
{
"command": "solid.thread",
"params": {
"face": [
2.5,
0,
5
],
"designation": "M5",
"length": 4,
"modeled": true
}
},
{
"command": "solid.fillet",
"params": {
"edges": [
[
1.7320508075688774,
0.9999999999999999,
13
],
[
1.2246467991473532e-16,
2.0,
13
],
[
-1.7320508075688774,
0.9999999999999999,
13
],
[
-1.7320508075688772,
-1.0000000000000002,
13
],
[
-3.6739403974420594e-16,
-2.0,
13
],
[
1.7320508075688767,
-1.0000000000000009,
13
]
],
"radius": 0.3
}
}
]
}
tests/kernel-cases/threads/995-m5-thread-in-5mm-hole/expected.json
+32
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@@ -0,0 +1,32 @@
{
"sources": [
"tangency-labs/solidcraft#995",
"tangency-labs/solidcraft#1018"
],
"what": "a modelled M5 thread in a hole drawn at 5 mm, the thread's own size (nothing was cut: the wall only turned faceted)",
"source": "analytic",
"method": "ISO 68-1 basic profile: H = P sqrt3/2, basic depth 5H/8. External groove (the space between teeth): a trapezoid P/4 wide at the root radius d/2 - 5H/8, widening by 2 tan30 per unit of radius to 7P/8 at d/2. Internal groove: P/8 wide at the major radius d/2, widening to 3P/4 at the minor radius, cut only where there is material (r >= hole radius). Pappus: volume per turn = 2 pi A rc (A the trapezoid area, rc its centroid radius from the axis); a helical sweep of L/P turns removes exactly (L/P) x that, where each end of the thread is a free end or lies inside material. A 5 mm hole through a D14 x 4 disc, drawn at the thread's nominal size, takes a modelled M5: the hole is first filled to the tap drill (major - pitch = 4.2 mm, rho=2.1), then the groove is cut, the same thread as in a hole drilled at the tap drill. Whole length, both ends free (5 turns): V = pi 7^2 4 - pi 2.1^2 4 - 5 x V_turn(clipped at rho) = 615.7522 - 55.4177 - 5 x 1.87431 = 550.9629 mm3. The thin lips a tap leaves at each end are below 0.2% of the volume. Tolerance 1%: a modelled thread is a faceted helical solid (radial chord error up to 1% of the pitch on every wall, i.e. a volume deficit of about 4/3 x sag/R).",
"outcome": "solid",
"body_count": 1,
"volume_mm3": 550.9629,
"tolerance": {
"rel": 0.01
},
"bbox": {
"min": [
-7,
-7,
0
],
"max": [
7,
7,
4
]
},
"center_of_mass": [
0,
0,
2.0
]
}
tests/kernel-cases/threads/995-m5-thread-in-5mm-hole/recipe.json
+35
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@@ -0,0 +1,35 @@
{
"commands": [
{
"command": "solid.cylinder",
"params": {
"radius": 7,
"height": 4,
"body_name": "Nut"
}
},
{
"command": "solid.hole",
"params": {
"position": [
0,
0,
4
],
"diameter": 5
}
},
{
"command": "solid.thread",
"params": {
"face": [
2.5,
0,
2.0
],
"designation": "M5",
"modeled": true
}
}
]
}
tests/kernel-cases/threads/skipped.json
+230
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@@ -0,0 +1,230 @@
[
{
"source": "tangency-labs/solidcraft#4093",
"why": "other area: sweeps (a guided helical sweep cut whose exported mesh has open boundaries; not the Thread feature)"
},
{
"source": "tangency-labs/solidcraft#4087",
"why": "feature request: the thread as a few selectable faces rather than many facets; no closed-form face count, no number to grade"
},
{
"source": "tangency-labs/solidcraft#4085",
"why": "no new geometry: M6 on a 7 mm shaft is a shaft thicker than the thread, the family of case 2705"
},
{
"source": "tangency-labs/solidcraft#4033",
"why": "visual only: the thread's facets look faceted; the report has no design, only a face point"
},
{
"source": "tangency-labs/solidcraft#3847",
"why": "other area: tessellation (display plans for threads and pointed ends of imported STEP bodies)"
},
{
"source": "tangency-labs/solidcraft#3745",
"why": "UI only: hover highlight of a large thread computed on the main thread"
},
{
"source": "tangency-labs/solidcraft#3737",
"why": "UI only: orbit and zoom freeze in edge highlighting on the main thread"
},
{
"source": "tangency-labs/solidcraft#3710",
"why": "no repro geometry: the report has only the face point of a private design (an app that stopped responding)"
},
{
"source": "tangency-labs/solidcraft#3519",
"why": "UI only: the Thread dialog was applied with no cylindrical face selected"
},
{
"source": "tangency-labs/solidcraft#3467",
"why": "no repro geometry: 'planar boolean: shell not oriented and closed' with only the face point of a private design; the same family as case 3311-two-tapped-holes-both-modelled-threaded"
},
{
"source": "tangency-labs/solidcraft#3386",
"why": "other area: crashes (a crash report with only a face point, no design)"
},
{
"source": "tangency-labs/solidcraft#3337",
"why": "no repro geometry: 'planar boolean: shell not oriented and closed' with only a face point; the same family as case 3311-two-tapped-holes-both-modelled-threaded"
},
{
"source": "tangency-labs/solidcraft#3307",
"why": "no repro: a hole with a thread size is a cosmetic thread by default (see case 2115-tapped-hole-drill-is-major-minus-pitch)"
},
{
"source": "tangency-labs/solidcraft#3183",
"why": "no repro geometry: 'planar boolean: tree too deep' redefining a thread after a fillet; sizes of the private design unknown"
},
{
"source": "tangency-labs/solidcraft#3165",
"why": "empty report (the body was not pasted)"
},
{
"source": "tangency-labs/solidcraft#3145",
"why": "feature request: threads without turning the whole body into facets; no number to grade (the multi-thread case 2526-three-modelled-threads-in-one-body covers the symptom)"
},
{
"source": "tangency-labs/solidcraft#3133",
"why": "CPU or window threads (off-thread evaluation, freezes), not modelled threads: no geometry"
},
{
"source": "tangency-labs/solidcraft#3131",
"why": "no repro geometry: 'the face is too far from the thread's diameter' with only a face point; the family of case 2369"
},
{
"source": "tangency-labs/solidcraft#3110",
"why": "not kernel geometry: the automatic-size lookup refuses a 78 mm shaft (no standard size); a cosmetic thread leaves the model unchanged"
},
{
"source": "tangency-labs/solidcraft#2929",
"why": "test flakiness of the off-window-thread tests: not geometry"
},
{
"source": "tangency-labs/solidcraft#2908",
"why": "test flakiness of the off-window-thread tests: not geometry"
},
{
"source": "tangency-labs/solidcraft#2892",
"why": "no repro geometry: 'planar boolean: tree too deep' for an M22x2.5 modelled thread, with only a face point"
},
{
"source": "tangency-labs/solidcraft#2796",
"why": "other area: crashes (a crash report with only a face point, no design)"
},
{
"source": "tangency-labs/solidcraft#2470",
"why": "other area: crashes (a crash report with only a face point, no design)"
},
{
"source": "tangency-labs/solidcraft#2467",
"why": "window-thread / UI responsiveness, not modelled threads: no geometry"
},
{
"source": "tangency-labs/solidcraft#2451",
"why": "other area: crashes (a crash report with only a face point, no design)"
},
{
"source": "tangency-labs/solidcraft#2079",
"why": "tracker for modelled threads; the geometry is in cases 2038-* and 2526-*"
},
{
"source": "tangency-labs/solidcraft#1794",
"why": "no repro geometry: 'no cylindrical face there to thread' with only a face point of a private design; the family of case 2038-internal-then-external-thread-on-one-body"
},
{
"source": "tangency-labs/solidcraft#1731",
"why": "no repro geometry: 'planar boolean: shell not oriented and closed' with only a face point; the family of case 3311-two-tapped-holes-both-modelled-threaded"
},
{
"source": "tangency-labs/solidcraft#1289",
"why": "other area: tessellation (imported STEP threads displayed with artifacts; the B-rep was fine)"
},
{
"source": "tangency-labs/solidcraft#1024",
"why": "test-process memory corruption on Windows in the thread tests, not a geometry result with a right answer"
},
{
"source": "tangency-labs/solidcraft#873",
"why": "other area: booleans (a hexagon join beside a screw: 'join cannot preserve the original faces'; no thread involved)"
},
{
"source": "tangency-labs/solidcraft#524",
"why": "design preference (thread adds material instead of cutting into the part) and a groove-end convention at shoulders with no derivable number; the hole-too-wide fill it was linked to is case 1443-m5x0.7-thread-in-5mm-hole"
},
{
"source": "tangency-labs/solidcraft#519",
"why": "feature request: a thread as 1 to 3 faces so it can be offset; no closed-form face count to grade"
},
{
"source": "tangency-labs/solidcraft#424",
"why": "Insert Part bolts carry cosmetic threads by design (the comment asks for a modelled option); no geometry defect"
},
{
"source": "tangency-labs/solidcraft#287",
"why": "performance umbrella: multithreading, SIMD, caching; nothing to grade"
},
{
"source": "tangency-labs/solidcraft#3870",
"why": "other area: tessellation (hover and select a thread as one piece: display and picking groups)"
},
{
"source": "tangency-labs/solidcraft#3849",
"why": "other area: tessellation (display plans for STEP threads and pointed ends)"
},
{
"source": "tangency-labs/solidcraft#3738",
"why": "UI and data: tapped-hole catalogue of metric fine, UNC and UNF sizes with tabulated pilot drills; no closed form"
},
{
"source": "tangency-labs/solidcraft#3622",
"why": "test flakiness: not geometry"
},
{
"source": "tangency-labs/solidcraft#3609",
"why": "CPU or window threads (off-thread evaluation, freezes), not modelled threads: no geometry"
},
{
"source": "tangency-labs/solidcraft#3340",
"why": "CPU or window threads (off-thread evaluation, freezes), not modelled threads: no geometry"
},
{
"source": "tangency-labs/solidcraft#3135",
"why": "CPU or window threads (off-thread evaluation, freezes), not modelled threads: no geometry"
},
{
"source": "tangency-labs/solidcraft#2868",
"why": "UI only: cosmetic thread markings as a display preference"
},
{
"source": "tangency-labs/solidcraft#2679",
"why": "CPU or window threads (off-thread evaluation, freezes), not modelled threads: no geometry"
},
{
"source": "tangency-labs/solidcraft#2468",
"why": "CPU or window threads (off-thread evaluation, freezes), not modelled threads: no geometry"
},
{
"source": "tangency-labs/solidcraft#2265",
"why": "UI only: reopening a Thread feature lost its face selection"
},
{
"source": "tangency-labs/solidcraft#2264",
"why": "UI only: modelled-thread preview in the dialog"
},
{
"source": "tangency-labs/solidcraft#2243",
"why": "other area: import (STEP export read-back hangs meshing a seam cylinder hole)"
},
{
"source": "tangency-labs/solidcraft#2095",
"why": "performance: kernel profile timings of a thread's faceted cut"
},
{
"source": "tangency-labs/solidcraft#1759",
"why": "UI only: the Thread dialog's size suggestion"
},
{
"source": "tangency-labs/solidcraft#1675",
"why": "CPU or window threads (off-thread evaluation, freezes), not modelled threads: no geometry"
},
{
"source": "tangency-labs/solidcraft#1527",
"why": "other area: booleans (last-resort nudge of a pleat loft join; not a thread)"
},
{
"source": "tangency-labs/solidcraft#1524",
"why": "assembly joints (gear, rack and screw couplings between motions): no kernel geometry"
},
{
"source": "tangency-labs/solidcraft#1300",
"why": "other area: tessellation (display of imported modelled threads)"
},
{
"source": "tangency-labs/solidcraft#1201",
"why": "CPU or window threads (off-thread evaluation, freezes), not modelled threads: no geometry"
},
{
"source": "tangency-labs/solidcraft#1020",
"why": "CPU or window threads (off-thread evaluation, freezes), not modelled threads: no geometry"
}
]