All that workaround for nothing! Thank you guys.

Just for future learning and if it comes up again, does the setup I outlined work to have the 2 different voltages (using the expansion board)?

Hi guys, did you ever resolve this? I'm going through a similar issue. Thinking of running 24V to my 6HC and 48V to the expansion board (3HC). Will this work? New topic posted here:

https://forum.duet3d.com/topic/36953/duet6hc-24v-and-48v-psu-s-for-different-components/8?_=1731730867239

Thanks

@Notepad Thank you guys for the advice! Please keep it coming

Latest:
I ordered a 3HC Expansion Board, I think I will run 48V to that and run 24V to the 6HC. I heard the drivers on the 6HC actually can't regulate the voltage if I plug in 24V stepper motors to the drivers.

So, on the 6HC:
-Running off 24V PSU
-Running 6 Nema17 Stepper Motors - looks like they're rated to 24V(https://www.amazon.com/gp/product/B00W9A2L3S/ref=ppx_yo_dt_b_search_asin_image?ie=UTF8&psc=1)

On the 3HC:
-Running off 48V PSU
-Running 1 Ram Extruder and 1 Nozzle Auger (which need 48V)

How does this sound?

@droftarts thank you all so much, really appreciate the feedback. Nice to have a community to ask.

I'm a total novice at this, can anyone help me breakdown how the relay works vs how just running the 48V positive to the extruder/negative to the "out#" works?

The 48V equipment is a ram extruder (to push out material) and a nozzle with a type of auger to mix the material close to the nozzle - both powered by NEMA stepper motors. I want to be able to control the speed and everything of this equipment through the Duet Web Control (along with the 24v stepper motors on the 6HC drivers).

I just ordered SSRs, but I'm thinking I can just order a Duet 3HC Expansion board for the 48V equipment (I think the Expansion board takes its own power/voltage), and wire the 48V directly to the expansion board. Thoughts?

Hi guys, I’m getting some conflicting info. Would love some feedback on the following setup:

I have some equipment (extruders) that requires 48V. I also have some stepper motors that require 24V. So, I fed 48V to the Duet6HC and tied the 24V PSU negative into the 48V PSU. My thinking was that I could take the (+) from the stepper motor and plug it into the 24V PSU directly, with the other 3 pins going into the 6HC driver. Is this going to work, or is the Duet driver going to malfunction/get damaged?

Please let me know your thoughts, thank you!