- python3 -m sandtable web: local web page to play designs from a library of
27 built-in patterns, upload .thr or .svg, pause/skip/stop, jog and calibrate.
Reconnects by itself when the USB cable comes back.
- Plays .thr files and built-in generators with an erase spiral between them,
constant ball speed, host-side homing on stock GRBL 1.1 (Uno + CNC shield),
FluidNC for the ESP32 board.
- Home switch guard: patterns never press the switch, so a press means lost
steps and stops the machine at once with an alert.
- lineart.py turns SVG line drawings into one continuous path.
- Tests against a GRBL simulator.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
