v0.16.0

CamCraft 0.16.0 - a clean-room CAM system that turns 3D models into
NC programs for CNC milling and turning.

• Full history: CHANGELOG.md
• Roadmap: the open issues are the current roadmap
• Questions: ask on Discord

What's in this release

BREAKING: the project file format moved from v57 to v58 (PR #381: a tool can
carry a modelled holder body). Files saved by 0.15.0 or earlier open here and
are migrated when saved, but a v58 file saved by 0.16.0 is refused by older
builds (save a copy first if you still need 0.15.0). Two post behaviours also
tighten and can refuse a program that used to post: the Tormach posts now
retract to the machine file's safe_retract and refuse a non-Tormach machine
that states none, the Siemens 840D post refuses any machine that states none
(#495, #503), and a probing post script must declare
onProbeGuard or the Probe op is refused by name (#174). The built-in VMC,
tilt-head, Lathe and Mill-turn machines now state their strokes in program
coordinates (#457, #493), so programs they used to refuse now post.

A minor release headlined by fixtures judged against their real mesh, tools
that carry modelled holder bodies, one NC file per mount for multi-setup jobs,
a Machines pane that edits machine files, and a much larger MCP surface. It
also lands a long run of sim, gouge-gate and post fixes. Thanks to mkinney,
seelesturm, austin62jake and tbrasselle for their contributions.

New

• One NC file per mount (#388): setups on different machines or posts
  generate on their own machine, and the post writes one NC file per
  machine/post, each judged against its own machine; the program sim refuses
  by name to carry stock between setups on different machines (#404).
  Pause, optional stop and go-home entries can sit between operations (#155).
• Fixtures judged against their real mesh (#339): the box stays the broad
  phase, so a path between vise jaws no longer refuses the post; tilted,
  rotary, spindle-C and XZ/YZ-arc moves are judged too, each arc chord padded
  by its sagitta (#491), and spindle-C moves are judged at the station pose
  (#486). An upright rapid checks the whole tool stack and a ramp each band
  over its true height span (#424, #425). The fixture UX (PR #549, replacing
  #482, mkinney): mark or import a fixture from the browser, see whether each
  is judged by mesh or box and why, and see which fixture a warned move
  strikes. The Fixtures page rows wrap and Place has labelled fields (#509).
• Tools with holder bodies: a tool carries a modelled holder (STEP/STL/OBJ)
  placed by axis and tip, judged by its revolved envelope (#368); import,
  place and draw it in the tool editor and sim (#371); draw a milling holder
  as a revolved outline (#93). Lathe tools carry a holder or boring-bar body
  judged against the revolved stock (#369) with an optional insert zone
  (#396). Export and import a .camtools library (#300, PR #487 replacing
  #466).
• MCP server: pick faces, edge chains and loops for an operation (#180);
  detect_holes (#312, PR #456 replacing #314); render_stock PNG with rest
  and gouge volume (#182); setups, work offsets, machines and fixtures (#181);
  tool-library export/import (#355, PR #490 replacing #467); stdio hardening
  against null ids, oversize and non-UTF-8 lines (#443).
• Machines pane (View > Machines): browse and validate machine files
  (#287), and create, edit and save .mch files with per-field validation
  and atomic writes (#383). Machine files for the Tormach PCNC 770 and 1100
  (#170).
• Probing: seed a Probe op from a picked face, edge, vertex or round wall
  (#171); positioning moves post as protected stop-on-contact moves (#174);
  Fanuc probing on an inverted X/Y axis (#392).
• UI: orthographic (parallel) projection with a Projection row and bare P
  (#434, tbrasselle); warned toolpath moves are marked in the viewport and
  framed from the op page (#261, PR #454 replacing #349); a refused post's
  reason stays in a window (#265, PR #451 replacing #296); the Post dialog
  opens where the document last posted (#258, austin62jake); the G-code
  viewer lists from the left edge (#256, austin62jake); the Stock page and
  Theme button split (#441, #442); macOS Cmd+Q asks about unsaved changes
  (#144); the browser tree reads on the light theme (#506).
• Licence: CamCraft is now Apache-2.0 (was MIT), copyright held by its
  contributors (#452).

Fixed

• Post gate false gouges and misses: XY arcs are cut on the true circle,
  not inscribed chords, in the column engine (#402), the field engine and the
  envelope scan (#413); a column within tolerance of a wall is judged against
  the floor beside it (#299); a typed Slot's round ends no longer read as a
  gouge (#510); a 2D Chamfer or Deburr is judged against its declared edge
  break (#303); the scallop check reads to the ball diameter (#212).
• Crash: an intermittent SIGSEGV/SIGABRT when threads created their first
  world at once is gone (#379).
• Alignment picks refuse by name on an inside-out, open or non-manifold
  body instead of silently flipping the part (#366).
• Turning: multi-pass, chamfer and taper turning exit a longer bar safely
  (#323, seelesturm); the rotary wrap turns its seam clear of a D-flat or
  keyway (#226); rotary Adaptive no longer sorts its leave-limit level by
  float noise (#55); swarf raster lines keep their lying angle on rapids
  (#48).
• Posts: the Fanuc probe result no longer writes a doubled sign (#377); a
  trailing Go home is written once (#504); the Tormach and Siemens 840D
  retract from the machine file (#495, #503).

Known issues

• #554: face picking on the setup page keeps snapping to an edge.
• #330: Align by picking a face or two edges moves the part but does not
  fully rotate it onto the chosen G17/G18/G19 plane.
• #558: another setup's WCS can be drawn in the wrong place when the part
  is aligned differently.
• #523: posts start the spindle (S0 M3) on a probe tool.
• #74: GPU selection can fail on hybrid Intel/NVIDIA laptops.

Report a bug or ask for a feature

• Found a bug? Open a bug report: a
  toolpath that looks wrong, a crash, or a refusal you think is mistaken.
• Want a feature or an enhancement? Request it:
  say what you are trying to machine and what is in the way.
• Not sure? Ask on Discord first.

Thanks

Thank you to everyone who contributed to this release:

• @austin62jake
• @mkinney
• @NeoTech
• @seelesturm
• @tbrasselle