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solvecraft/tests/kernel-cases/fillets
jyviko a1dbb7c08a Kernel rig: the two G2 corner cases are graded clear of the vertices, as the ladder grades them
Where a round meets a plane it is only tangent to it: its curvature jumps by 1/r there, so no
corner patch can be G2 to both at that point. The cases graded the whole seam and could not pass.
They now bound the curvature jump at stations clear of each seam's turn, within reach of the
corner, scaled by r (ladder 07/019's bound at r5): r1 within 2.2 mm, 0.24 mm clear, 0.005 per mm;
r5 within 11 mm, 1.2 mm clear, 0.001 per mm. Develop's corner gives 0.00135 and 0.00027 per mm
(the jump at the vertex is 1.017 and 0.2035, the round's own 1/r), so both leave KNOWN_FAILING.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-29 22:15:34 -04:00
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