Has anyone adapted one of the cheap Chinese 4th axis units to an SO3?
I see these all over eBay for about $130 including chuck and stepper, seems crazy cheap.
I understand that the stock controller does not support a 4th axis, but
it should be possible with a Geckodrive or other controller…?
Anyone done this yet? Any issues with Z clearance, etc.?
I am considering buying an SO3 and one possible application would be for engraving
the outer surface of a small brass cylinder (banjo tuner) with a shallow decorative design.