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Kernel rig: path flange cases, a Z section, one line at 45 degrees down, and a path straight on refused

Browse Source 
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
jyviko
2026-10-29 16:51:50 -04:00
committed by Irakli Kourtis
parent 2edf649528
commit c60bcb55e1
6 changed files with 395 additions and 0 deletions
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tests/kernel-cases/sheet-metal/cov-path-flange-one-line-down-at-45-degrees/expected.json
+22
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{
"sources": [],
"what": "sheet.path_flange along one line drawn 45 degrees down and out from the top edge of a 100 x 60 x 2 base, 20 long: a single bend down",
"source": "analytic",
"method": "T = 2, R = 2, K = 0.5. One line, one 45 degree bend, turning down (the path heads below the sheet): setback (R + T)tan(22.5 deg) = 1.656854 off the base and off the flange's 20 (to its outer face from the virtual sharp). V = 2*100*((60 - s) + (20 - s)) + (pi/4)((R+T)^2 - R^2)/2*100 = 15808.497198",
"body_count": 1,
"volume_mm3": 15808.497198241515,
"results": [
{
"step": 10,
"json": {
"bends": [
{
"angle_deg": 45.0,
"direction": "down",
"radius": 2.0
}
]
}
}
]
}
tests/kernel-cases/sheet-metal/cov-path-flange-one-line-down-at-45-degrees/recipe.json
+108
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{
"commands": [
{
"command": "sheet.manage_rules",
"params": {
"name": "Steel 2",
"thickness": "2 mm",
"active": true,
"bend_radius": "2 mm",
"k_factor": 0.5
}
},
{
"command": "sketch.create",
"params": {
"plane": "XY",
"name": "Base"
}
},
{
"command": "sketch.rectangle.two_point",
"params": {
"p0": [
0,
0
],
"p1": [
100,
60
]
}
},
{
"command": "sketch.finish",
"params": {}
},
{
"command": "sheet.flange",
"params": {
"type": "base",
"sketch": "Base"
}
},
{
"command": "sketch.create",
"params": {
"plane": {
"origin": [
50,
0,
0
],
"x_dir": [
0,
-1,
0
],
"y_dir": [
0,
0,
1
]
},
"name": "Path"
}
},
{
"command": "sketch.line",
"params": {
"points": [
[
0,
2
],
[
14.14213562373095,
-12.14213562373095
]
],
"ids": [
"p1"
]
}
},
{
"command": "sketch.finish",
"params": {}
},
{
"command": "sheet.path_flange",
"params": {
"edge": [
50,
0,
2
],
"sketch": "Path",
"curves": [
"p1"
]
}
},
{
"command": "sheet.flat_pattern",
"params": {}
}
]
}
tests/kernel-cases/sheet-metal/cov-path-flange-straight-on-from-the-sheet-refused/expected.json
+8
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{
"sources": [],
"what": "sheet.path_flange along a line that runs straight on from the sheet (in its own plane): no bend to make",
"source": "invariants",
"method": "the first line's angle to the sheet makes the first bend; a line at 0 degrees to it makes none, so the path is refused with the line it is about",
"outcome": "refused",
"refusal": "line 1 of the path flange's path runs straight on from the sheet"
}
tests/kernel-cases/sheet-metal/cov-path-flange-straight-on-from-the-sheet-refused/recipe.json
+104
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{
"commands": [
{
"command": "sheet.manage_rules",
"params": {
"name": "Steel 2",
"thickness": "2 mm",
"active": true,
"bend_radius": "2 mm",
"k_factor": 0.5
}
},
{
"command": "sketch.create",
"params": {
"plane": "XY",
"name": "Base"
}
},
{
"command": "sketch.rectangle.two_point",
"params": {
"p0": [
0,
0
],
"p1": [
100,
60
]
}
},
{
"command": "sketch.finish",
"params": {}
},
{
"command": "sheet.flange",
"params": {
"type": "base",
"sketch": "Base"
}
},
{
"command": "sketch.create",
"params": {
"plane": {
"origin": [
50,
0,
0
],
"x_dir": [
0,
-1,
0
],
"y_dir": [
0,
0,
1
]
},
"name": "Path"
}
},
{
"command": "sketch.line",
"params": {
"points": [
[
0,
2
],
[
20,
2
]
],
"ids": [
"p1"
]
}
},
{
"command": "sketch.finish",
"params": {}
},
{
"command": "sheet.path_flange",
"params": {
"edge": [
50,
0,
2
],
"sketch": "Path",
"curves": [
"p1"
]
}
}
]
}
tests/kernel-cases/sheet-metal/cov-path-flange-wall-and-an-outward-lip/expected.json
+39
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{
"sources": [],
"what": "sheet.path_flange along a two-line path across the y = 0 edge of a 100 x 60 x 2 base: 20 up, then 10 out away from the base (a Z section)",
"source": "analytic",
"method": "T = 2, R = 2, K = 0.5, setback R + T = 4 at each 90 degree bend. Line 1 (up, 20) is a wall 20 to its outer face (y = 0): straight 20 - 4 - 4 = 12; line 2 turns away from the sheet (a bend down), a lip 10 to its outer face from the virtual sharp at (y 2, z 20): straight 10 - 4 = 6, its far edge at y = 2 - 10 = -8, its top face at z 20. Base 100 x 56. V = 2*100*(56 + 12 + 6) + 2*(pi/2)((R+T)^2 - R^2)/2*100 = 16684.955592; the bends turn up, then down",
"body_count": 1,
"volume_mm3": 16684.955592153878,
"bbox": {
"min": [
0,
-8,
0
],
"max": [
100,
60,
20
]
},
"results": [
{
"step": 10,
"json": {
"bends": [
{
"angle_deg": 90.0,
"direction": "up",
"radius": 2.0
},
{
"angle_deg": 90.0,
"direction": "down",
"radius": 2.0
}
]
}
}
]
}
tests/kernel-cases/sheet-metal/cov-path-flange-wall-and-an-outward-lip/recipe.json
+114
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{
"commands": [
{
"command": "sheet.manage_rules",
"params": {
"name": "Steel 2",
"thickness": "2 mm",
"active": true,
"bend_radius": "2 mm",
"k_factor": 0.5
}
},
{
"command": "sketch.create",
"params": {
"plane": "XY",
"name": "Base"
}
},
{
"command": "sketch.rectangle.two_point",
"params": {
"p0": [
0,
0
],
"p1": [
100,
60
]
}
},
{
"command": "sketch.finish",
"params": {}
},
{
"command": "sheet.flange",
"params": {
"type": "base",
"sketch": "Base"
}
},
{
"command": "sketch.create",
"params": {
"plane": {
"origin": [
50,
0,
0
],
"x_dir": [
0,
-1,
0
],
"y_dir": [
0,
0,
1
]
},
"name": "Path"
}
},
{
"command": "sketch.line",
"params": {
"points": [
[
0,
2
],
[
0,
22
],
[
10,
22
]
],
"ids": [
"p1",
"p2"
]
}
},
{
"command": "sketch.finish",
"params": {}
},
{
"command": "sheet.path_flange",
"params": {
"edge": [
50,
0,
2
],
"sketch": "Path",
"curves": [
"p1",
"p2"
]
}
},
{
"command": "sheet.flat_pattern",
"params": {}
}
]
}