Hi guys,

I'm starting my second DMM build and I have a pretty dumb question.... What is better- Use ball screws with a 10mm a pitch and use more pulley reduction or use 5mm pitch screws with less reduction?

I am using the 750 watt motors and Dyn3 drives on an IH RF45 clone. Is it possible to use Dyn3 drives on the X and Y with a Dyn2 on the Z?

Also, there is not much on the web about tuning the Dyn2 drives. If somebody were to do a write-up on tuning them, I'm sure a lot of people would be pretty happy....

Thanks guys