A tabbed cutout's slug stays attached while the sheet is cut, but nesting
saw a closed hole and could place parts inside it. Nesting and layout paths
now read material through NestingMaterial.ForNesting, which drops closed
contours with tab spans so the slug counts as part. That covers part
outlines and collision lines, the cutout router, fill expansion, best-fit,
NestLayoutCheck and the GPU bitmaps. Area, overlap diagnostics and cutting
keep the hole, and programs without tabs read exactly as before.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A hole can now be declared a tabbed cutout in the CAD Converter: pick a
circle or any edge of a closed hole, set the tab count and width, and drag
the tabs around the hole. The definition persists on the drawing and in the
nest file, and stays editable from the source entities.
The builder replaces the hole with open cut pieces and uncut spans on a new
Tab layer. Tabs are material, so area, nesting and overlap checks still see
a closed hole, but they are never cut. Plan Cutting and Assign Lead-ins cut
each piece from the slug with the internal lead-in and no lead-out. A lead
that would reach back over a tab is mirrored, and an arc lead onto an arc
pierces straight in. Planning accounts for each span between tabs and runs
the open-cut proof, so its own tabbed cutouts certify; tabs followed by a
lead-out are still refused. Pre-post review flags programs that still
contain tab motions.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
ajandClaude Opus 5.5