Click the Release tab to download pre-compiled .hex files or just click here
This repository is a heavily modified grbl 1.1 adapted to be used as motor and GPIO controller for Four Thieves Winegar Collective Microlab.
Microlab uses stepper motors to control pumps and various pins on Arduino CNC Shield as GPIO to control relays.
DO NOT USE THIS REPOSITORY TO CONTROL YOUR CNC MACHINE - YOUR MACHINE WILL MOST LIKELY GET DAMAGED!!
- Licensing: Grbl is free software, released under the GPLv3 license.
Arduino CNC Shield pins are remapped to change their original behaviour:
| CNC Shield pin | Arduino Uno pin | Microlab name |
|---|---|---|
| Endstop Z+/Z- | 11 | OUTPUT_1 |
| Endstop Y+/Y- | 10 | OUTPUT_2 |
| Endstop X+/X- | 9 | OUTPUT_3 |
| SpnEn (Spindle Enable) | 12 | OUTPUT_4 |
| SpnDir (Spindle Direction) | 13 | OUTPUT_5 |
Open grbl/examples/GrblUpload.ino in Arduino IDE and compile + upload it from the editor.
For this to work you need to copy grbl directory into Arduino IDE libraries dir.
Install compiler:
sudo apt-get install gcc-avr binutils-avr avr-libc gdb-avr avrdude
Compile:
make
Use avrdude for uploading hex file to the board. Avrdude supports native Arduino USB bootloader to program the board. Both Linux and Windows versions work fine.
On Debian/Ubuntu/etc install using:
sudo apt-get install avrdude
Command line example:
avrdude -c arduino -P COM8 -b 115200 -p atmega328p -D -U flash:w:grbl.hex:i
Microlab-grbl implements M64-M65 g-code commands (turn on/off digital output immediately) to preserve compatibility with other CNC boards/firmware that may be used in the future with microlab.
M64 P1 - switch OUTPUT_1 high
M65 P1 - switch OUTPUT_1 low