Quote Originally Posted by Clive S View Post
Chaz its hard to see but if you look on the driver it gives the max voltage at bottom RH side (48V?) if so you could run them at say about 36V. Do yourself a favour and buy some decent drives like AM882 and run them at a higher voltage.

Also you don't say what PS you are using switch mode are not good for steppers.
Ye, possibly around 50V.

They did work well before the previous set of PSUs died. The current PSU is one of them el cheapo ebay ones, I presume they are SMPS.

Id like to sell the lathe but need it to be 100% reliable before I do. Any suggestions on what PSU would suit if I was just going to upgrade this? Lets assume 36 or 48V max.

lll take a look at the AM882 anyways.

Thanks