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>
Ahead of the new laser schedule, three ways a post could silently cut
with the wrong process, and one way its settings silently reset:
- Cincinnati CL wrote no G89 when no cut library matched the nest's
material, thickness and gas (or no etch library for etch features),
so the controller cut with whatever library it loaded last. It now
refuses, unless the new "Require libraries" setting is turned off.
- Cincinnati CL declared G20/G21 from its own setting without comparing
the nest's units, so a metric nest posted 25.4x too large. It now
refuses a mismatch.
- CI Fiber posted any material missing from its table as the default
code (MSN), so stainless or aluminum ran with mild-steel technology.
A named, unmapped material is now refused; the default code covers
only nests with no material.
- Posts saved their settings beside their DLL, inside the install
folder a Velopack update replaces, so every update reset them to the
shipped defaults. Saves now go to %APPDATA%\OpenNest\Posts and the
shipped JSON only seeds them; constructing a post no longer writes.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
IJsonConfigPostProcessor lets a host keep a post's settings somewhere other
than the JSON file beside the post DLL. The CL-707, CI Fiber and Gravograph
posts implement it; LoadConfig keeps the current settings when the JSON is
unusable.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Multi-sheet nests previously went into one program with a single header
size and one M50 at the end, so sheet 2 would cut into sheet 1's
skeleton. New Sheets settings:
- One program per sheet (default on): JOB.cnc -> JOB-1.cnc, JOB-2.cnc,
each a full program with its own size and pallet change (CL-series
batch rule, EM-423 7.4). Single-sheet nests keep the chosen name.
- Off: one program, with /L "L0" + pallet change between sheets;
mixed sheet sizes are rejected.
- Pallet change code (default M50, unconfirmed for multi-sheet CI Fiber
runs; documented as a release blocker).
All sheets are validated and rendered before any file is written.
IMultiFilePostProcessor lets the desktop app confirm overwrites of every
target file and list what was saved, and the console print each file.
New post-processor plugin OpenNest.Posts.CincinnatiCIFiber for the CI
Fiber laser family (nLight CLX / Beckhoff TF5200 / Precitec ProCutter,
e.g. the CI Fiber 4020 8kW). Named by machine family, not table size.
Emits the machine program contract of the Cincinnati-supplied sample NC
(12992-4SS_NEST.nc): V.E.* header, restart jump, per-part V.E.R4 blocks,
per-contour N labels with V.E.R3, skippable /L macro lines (L0/L2+G41
interior, L4+G42 exterior, L6 cut-on, ZHSOFF cut-end), G162 incremental
arc I/J, trimmed 3-decimal spaceless coordinates, CRLF, M50/M30/%.
Contour classification (interior vs exterior) derives from the material
side of the closed cut path, not hardcoded winding. SubProgramCall holes
are flattened to sheet coordinates (rotation-safe). Arc lead-ins are
rejected per TF5200 13.2.4.1 (first motion block after G41/G42 selection
must be linear). Table envelope (default 160.25 x 81.25 in) validated.
Tests: structure golden on a square-with-hole nest, rotated-hole flatten,
coordinate format, arc-lead-in rejection, table validation, suppressed/
scribe skipping, plus a SkippableFact regression against the real sample
NC (109 parts, 2071 contours, L2=1962, L4=109, perimeter vertices match
within 0.001). Fixtures configure through OpenNest.Tests/test-config.json
and the regression skips when absent.
ajandClaude Opus 5.5