Recently was given an old surface grinder from my work place and thought about doing a rebuild on it but the more i looked at the machine the more attractive a conversion into a horizonal mill seemed to me. Grinders are nice but it’s not really something i would have much use for. besides this machine was free so it’s a blank slate to build from. the ways were shot so linear ways and ball screws seemed like the way to go and the machine weighs around 1500 lbs so it has enough mass to dampen vibration.
long story short i started thinking about what i would use to drive the spindle and landed on the rigid tapping video on Youtube so here i am
just started working on this and am starting to gather little by little as money permits. should have a 3 hp motor sometime today