Please write in to sales@carbide3d.com — I know we have an 80mm diameter spindle in development for the SO5 Pro, and I’m hopeful that it will be 110/220V auto-switching (or have a manual switch?)
I do have to admit that I use a European 220V spindle on one of my machines — a Mafell FM 1000 WS:
it was something of an indulgence (I was doing so many test cuts at the time it felt as if I was spending more time wrenching than the machine was cutting), but has worked out surprisingly well — I’m still debating about making an adapter plate for my SO5:
it works well, despite the nuisance of needing a 110–220V step-up transformer.
If you’re interested, I could push that up the priority stack.
Correct. I use a 220V Mafell on my SO3 XL at home.
It will require that I work up an adapter plate to mount it, and then I’ll need to work out how to make it work with my Sweep Pro dust boot.
I have a 110V–220V step-up transformer on a table next to the machine (I need to hang it off the underside of the plywood the machine is on) — the spindle is plugged into the transformer, the transformer is plugged into my Festool CT Midi, and that is plugged into a 20-amp outlet which has a dedicated line from my circuit box.