Gcode 2d-plotter

Hacking old 2d data plotters to make art...

First tries

USB to Analog

Based on GCodeToAnalog by GaudiLabs modded grbl firmware.

Uploading the code to Arduino Micro:

avrdude -c stk500v1 -p atmega32u4 -P /dev/ttyACM0 -b19200 -U flash:w:/home/dusjagr/Documents/SGMK/gcode_plotter/GCodeToAnalog-master/grbl-atmega32u4-support-8c_analog/grbl.hex

grbl settings and more

https://github.com/grbl/grbl/wiki/Interfacing-with-Grbl

Create gcode from Inkscape

Installing gcodetools extenstion for Inkscape.

Send to plotter

Installing UGS (UniversalGcodeSender), standalone Java program multiplatform.

First results

painting a coconut

the horned god

TO DO

Connect pen lift from z-axes

Done with NPN BC457 and 5V relais.

optimizing settings

>>> $$ $0=40.000 (x, step/mm) $1=40.000 (y, step/mm) $2=10.000 (z, step/mm) $3=10 (step pulse, usec) $4=400.000 (default feed, mm/min) $5=50000.000 (default seek, mm/min) $6=12 (step port invert mask, int:00001100) $7=1 (step idle delay, msec) $8=100.000 (acceleration, mm/sec^2) $9=0.050 (junction deviation, mm) $10=0.100 (arc, mm/segment) $11=25 (n-arc correction, int) $12=3 (n-decimals, int) $13=0 (report inches, bool) $14=1 (auto start, bool) $15=0 (invert step enable, bool) $16=0 (hard limits, bool) $17=0 (homing cycle, bool) $18=0 (homing dir invert mask, int:00000000) $19=250.000 (homing feed, mm/min) $20=250.000 (homing seek, mm/min) $21=100 (homing debounce, msec) $22=1.000 (homing pull-off, mm) ok