@Thatguywithathing it's great to see someone tackle this. I had the exact same thought with my Fortus 250mc that's just been languishing in my garage for years. Have you made any progress since this original post? I'm at Step 0 at this point but my ultimate goal is to use both feeds into the head but, like you, just getting one working for now is great.

I'm thinking I'll need a Duet3 board, a compatible RasperryPi, and perhaps a new power supply? I have all of the original internals so if there's a way to reuse that power supply, great. If not, I can't imagine they're that expensive. If you have a parts list of what you've added/documented, I can start researching if they're still available or updated versions.

Best part, I'd LOVE to get rid of the dedicated 20A circuit that the Fortus needs. Now that it's in my home and not at the shop, I don't really have a dedicated circuit at the moment.

Thanks again and great job!