Pneumatic CNC engraving machine.
- Text input via PS2 Keyboard on Atmega32 (CPU1). User feedback via HD44780 based LCD.
- G-code generation from entered text with libhf2gcode.
- CPU1 sends g-code via UART to CPU2 with grbl (https://github.com/grbl/grbl)
- grbl generates the stepping sequences from the g-code
Used hardware: MKBoard Rev2.0 (Atmega32), Atmega328 for grbl, AMW 102 as stepper amp.