Automatic cut-offs refused any part reaching past the physical sheet by
more than Tolerance.Epsilon. Imported supplied blanks (panel doors,
remnants) equal their sheet but carry PEP's rounding: a 0.000006 outline
skew plus placements rounded to 0.001 put the never-cut outline 0.00001
to 0.00003 in past the sheet, so Plan Cutting refused every such nest.
A display perimeter may now extend up to DisplayPerimeterSheetAllowance
(0.0001 model units) past the sheet. Nothing cuts it, and a blank that
fills its sheet gets no cut-offs. Everything else on the part keeps the
ordinary tolerance: cuts, leads, scribes and travel, except a rapid that
ends on the outline itself (the move to its first corner, or an applied
program's display tail). A larger overhang is still refused.