Kernel rig: 3841 is 168's rim touching its coin along a circle, and 4092's reduced recipe is its report less a flange clear of the failing join; the kept cases carry their sources

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
jyviko
2026-10-31 09:05:46 -04:00
committed by jyviko
parent 6c2a2f3959
commit cd56cd3ad4
5 changed files with 2 additions and 654 deletions
@@ -1,6 +1,7 @@
{
"sources": [
"tangency-labs/solidcraft#168"
"tangency-labs/solidcraft#168",
"tangency-labs/solidcraft#3841"
],
"what": "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",
"source": "analytic",
@@ -1,11 +0,0 @@
{
"sources": [
"tangency-labs/solidcraft#3841",
"tangency-labs/solidcraft#168"
],
"what": "Join of a ring (r10..15) onto a coin (r10) that touch only along a circle: no fusion that moves the ring",
"source": "invariants",
"outcome": "solid_or_refused",
"method": "the bodies share one circular edge and no area, so a join has no single manifold solid to give: the right answer is a clean refusal, or the two bodies left as they are (body_count 2). Fusing them means the kernel moved or rotated the ring",
"body_count": 2
}
@@ -1,112 +0,0 @@
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@@ -1,22 +0,0 @@
{
"sources": [
"tangency-labs/solidcraft#4092"
],
"what": "the same without the top flange: the join fails with 'boolean Union: no result'",
"source": "analytic",
"method": "the pad (X -8..8, Y 18..25, Z 36..59) overlaps the body, ribs and ring, so the join is one connected solid; the join must succeed with one valid closed solid and no panic. Body: neck pi 18^2 21; the two-section loft is ruled, the circle r 18 paired with the 30 x 20 ellipse by their common angle parameter (the ellipse an affine image of the circle), so each section is an ellipse (18 + 12 l) x (18 + 2 l): 17 pi int (18 + 12 l)(18 + 2 l) dl = 7786 pi (pairing by normals instead, the largest any pairing gives, adds 17 pi * 1.5 = 80, inside the tolerance); the ellipse chamber pi*30*20*26 (z 38..64): 94844.68. The handle disc (r 12 about (y 30, z 47), x -5..5), the two ribs (the rounded profile, x -8..-4 and 4..8) and the pad (x -8..8, z 36..59 rounded r 3, y 18..25) add, by integrating over x -8..8, z 35..59 the length in y of the union of every part's y-interval less the body's own (grids 400^2..1600^2 agree to 2.4): 5347.9. V = 100192.6. Box: the chamber's x +-30, y -20 to the disc's 42, z 0..64",
"body_count": 1,
"volume_mm3": 100192.6,
"bbox": {
"min": [
-30.0,
-20.0,
0.0
],
"max": [
30.0,
42.0,
64.0
]
}
}
@@ -1,508 +0,0 @@
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