Hey,

This is just a quick and simple solution for a test stand.

You can mount your 16x2 LCD display, rotary encoder, SD card module, and an Arduino Mega 2560.

This setup is for a GRBL sender that reads the SD card and sends the G-code to an Arduino Uno with a CNC shield running GRBL.

You will find more information on my website soon: makinghub.de

Feel free to improve the housing.

Regards,
Niklas