Quote Originally Posted by printbus View Post
I'm going to leave this to anyone who's already done any form of a lead screw replacement. I think it was TechMasterJoe that said he had bought some rod to use. Where's he at with his mod?

I think it was either Prusa himself or Triffed Hunter that argues that on a threaded rod Z you ideally have a layer height that is an even number of full steps (not a microstep). I didn't bring up the Prusa calculator, but it seems if you follow that rule you'd end up with some odd layer heights.
This was of great discussion over on the printrbottalk forums, as the Printrbot simple used an acme rod. The layer heights suggested were weird, 0.28, 0.323 and so forth depending on what you wanted.