cnc-milling driver for GCode / MCode

This little driver runs on a RPi V 3B+ and is connected to a PCB board to control the steppers.

Until now, a gamepad is required to move the head around and select and start programs.

A Web UI is available on http://:1506

RPi connector Board

Eagle drawings and cam files are available in the folder PCB (TODO). Reach me out, I still have some PCBs on stock. (4x V1 bank, 1x V1 assembled and tested, 1x V2 blank)

Rev1

end switches inputs
Dir + Pul outputs
screw holes

you can use Z-Down end switch input to calibrate

Rev2

end switches inputs
Dir + Pul outputs
2 pwm out (servo or GPIO out/in 3.3V!)
external power input (jumper)
i²C connector
calibrate input
more compact
screw holes

Software features

Support for G0 G1 G2 G3 G21 G90 G91 M0 M1 M3 M4 M5
Settings file
Switch spindle on / off
Motor ramp for speed up
Web UI for remote control
Manipulate GCode in UI
Multi input directory live watcher for USB-Stick detection.
Show progress in UI
V1: Responsive web ui for mobile phones

Bugfix

F is now mm/min. (pref. mm/sec)

Upcoming features

External input as Change Tool (setting external_input_enabled) ( M6 )
Move spindel in UI with virtual joystick
Better Responsive web ui for mobile phones

backlog

Emergency trigger (stop || stop and go up)
Drive to max dimensions for selected program
Show path in ui
Redesign UI and widget System

supported gCode commands

code	command	example
G0	rapid move to XYZ position	G0 X1.0 Y0.0 Z 2.0
G1	milling move to XYZ position with F speed	G0 X1.0 Y1.0 Z -1.0 F1.2
G2	CW circle around IJK til XYZ is reached with F speed	G2 I-11.302914 J-5.330242 K0.0 X1.177652 Y5.964921 Z0.0
G3	CCW G2	G3 I-11.302914 J-5.330242 K0.0 X1.177652 Y5.964921 Z0.0
G21	unit is mm	G21
G90	X, Y, Z Absolute	G90
G91	X, Y, Z Relative	G91
M0	Switch Off	M0
M1	Switch Off	M1
M3	Switch On	M3
M4	Switch On	M4
M5	Switch Off	M5
M6	Change tool (WIP)	M6 T02

Alexander89/cnc-milling-machine