Quote Originally Posted by Buba b View Post
Im replacing my Hobby CNC board with the Gecko mainly because the Zaxis on my mini mill needs more torque. Ive got SY60STH86-3008 Nema 23 stepper motors from Zap on my machine and with the 3.5amp in parallel with 3.3k 5% resistors i should have 2.5nm (or 83% of there ) holding torque ( once i figure how to wire them up lol ). Not much of an increase over the Hobby board at 2.15nm but im hopeing just enough to stop it from stalling. If not then il replace the Z axis motor once i find one that matches the amps , which as you say Compfanon finding motors to match to get the most torque in the Uk is not proving easy. If i dont pay tax then i still think it will be a good buy .... but ive got the feeling il be getting a bill soon , the goverment needs more of my cash.
Heres hoping the bill gets lost in the system somewhere. The thought of "additional" charges put me off. My plan is to get (3) of the same motors from Zapp and drive with PM752's, all housed in a nice tower case perhaps along with the control pc.

My guru is helping me sort out appropriate power supply.

Good luck with your project.