Quote Originally Posted by dazp1976 View Post
Nema23 running on 68V???
Nothing wrong with that. Most of us run NEMA23 size motors on about 68V. More volts, better performance. The motors are happy enough - mine have been running like that for about 7 years now. As long as your driver can take it (and again, that's why a lot of us use 80V drivers) there's no problem. Just tweak the max current settings on the drivers so that the motors don't overheat.

Somewhere there is a guideline formula (originally from the Gecko people, I believe) that suggests that around 50V is the optimum. Firstly, this is a guideline and not a hard-and-fast rule, and secondly, it's wrong anyway. Go by other people's experience!