@chris-annin Great ! Thanks for the answer Chris

3.3V ouput works well with 5V TTL logic but won't with CMOS. The question is which driver use which logic. My CNC use DQ542ma's driven directl...

Still WIP Mega is in place. I'm using 90° XT60 for voltage supply in the bottom of the board

Almost done. I need to add 2 RJ45 with a few spare digital and analog pins.

I'm almost done: - added spare digitale and analog pins to RJ45 connectors - added endstop status leds - corrected drivers wiring - added SPI ...

Beginning "real world" things PCB are on the mail.

Boards and stencil are here, footprints looks good. Next step: smt soldering and test of the arduino

Fail ! :) I made a mistake on the ISP port: switched arduino pins with atmega pin number :-[ I will try to correct this plus a few minor things and ...

Parts are here ! ;)

The stepper aren't here but I did what was possible without them. It went pretty well, great job Chris ! Those aluminium parts are really nice. 2 re...

YAY ! It talks I had to mess with the USB to UART driver (U2 thing on the board ;) ) but it works. AR2 2.0 sketch is loaded. Now I can solder the ...

Sorry for the spam ;) This one is almost finished. I tested the digital ouputs trough the AR2 software, everything works fine.

Steppers and drivers are here ! Everything fits nicely on the controller. I will wire the smaller driver (planned to use 6x 542 at the beginning). ...