VFD retrofit Hobbymat BFE65

[m_c]

DC is different.
For cheap motors, old treadmills seem to be the way to go, combined with a KBIC speed controller.

Unless you really are trying to do the conversion as cheap as possible, I wouldn't use anything other than a KBIC, as they're quite popular, reliable, and not that expensive to buy new. I run a KBIC in my little lathe, as it came with a DC set-up and a dead Cheetah drive, and a KBIC was the cheapest main stream option I could find at the time.