@Veti yeah i saw the docs about the 3hc and it mentions how much i can draw from the 12v outputs but not how much from the 5v

but this is for the 6HC not the 3HC Expansion right?

How much current can i draw on the 5v out of the 3HC expansion board?
if I need around 2 A should i just step down one of the 12V outputs?

thanks to you guys. i will use the unix socket on the pi which is connected via the ribbon cable to the duet. the python socket example you showed in the other tread was exactly what i needed.

I plan on replacing a RAMPS board in a custom Machine i built. Right now i am sending all the GCODE over Serial from the python Program i#m running. I checked the Duet Web Control and saw it was using UNIX sockets to communicate with the DSF. Is there any Documentation on the API it exposes?

I’planning on building a machine wich needs 4 steppers on a single axis, is this possible with reprapfirmware and a Duet2 or 3?