A couple of years ago I posted an inquiry about an old Lincoln 3 phase "R2D2" welder I bought on ebay.
Specifically, I'm wondering whether anybody has ever managed to spin one of the things from some kind of external power supply such as a tractor PTO.
I have seen pictures of old Lincoln welders that were designed precisely for that purpose.
I'd like to do something with this machine. Especially now since I just got our old Farmall Cub running again.
One of the responses to my original post stated that the 3 phase motor and the rotor share the same bearings. He went on to suggest that I operate it with a phase converter.
But I'm much more razzed about spinning it mechanically.
Has anybody out there ever done this? Somebody said they call those "coffee can" welders.