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ajandClaude Opus 5.5
f9b2713420
N26-295's PT42 pairs saved spacing in slice 1 but every shared edge was still cut twice, costing a pass per edge and risking a freed part tipping under the head on the second pass. Plan Cutting now cuts a plate's common lines once unless the plate is set to cut them twice. Each group is cut member by member, owner before partner (a captured dependency that search and replay enforce, so a kept order cutting the partner first is a constraint conflict): the member's holes, then the shared cuts it owns as open CommonLine centerline cuts entered through the notch on the span's axis, then its remainder pieces, each ramped in from the kerf the shared cut opened. Capture marks the shared spans as tabs on the owned clean copy, so replay's contour accounting proves each perimeter is cut exactly once; a lead that fits at neither end refuses as UnsupportedGeometry naming the span, never shortened. Material still comes from the drawing, so utilization, quantity and overlap results do not change. Members are never support-tabbed; locked or excluded members and broken groups refuse. The CI Fiber post writes shared cuts in the cut-off form with a lead-in and no G41/G42, and remainders in the contour form on their perimeter's compensation side, named by a remainder comment. Cincinnati CL (whose PreApplied mode offsets nothing) and Gravograph refuse such nests, as do the desktop and console for any post without ICommonLinePostProcessor; nothing falls back to a silent double cut. Plate > Arrange > Cut Common Lines Twice keeps slice 1's behavior, persists with the plate and makes an open plan stale. Pre-post review now checks each span is cut once, on its centerline, by the member cut first, and the rapid check treats a finished member's remainders as an obstacle. Compensation start in void and cancel in kerf are unconfirmed on the CI FIBER 4020; release waits on a 3/16 stainless coupon trial. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>