[ewest]

Yeah using 10160 pulses per inch out of the SmoothStepper (did I mention... buy one)

Thats a 1:2 belt drive going in to 50mm/rev ball screws. They are huge mofos.

The Z uses a 5:1 gear reduction as well, since the axis weighs about 150 lbs, which is balanced by a gas spring, but still.... the gearing helps a LOT. It's still 10160 Pulses per inch though, because I introduce a 1:5 electronic gearing in the servo drive. It's just handy to have all the same number in Mach3.

Cheers!

Andy