View Full Version : Harmonic 4th Axis

26-08-2015, 03:41 PM
Hi - Has anyone tried one of the bay, Chinese "harmonic 4th axis`s" please. getting tempted by the price!!
Would welcome any feed back that may be available please. (Using Mach3)

26-08-2015, 04:31 PM
Not tried these but the harmonic drive is the way to go for zero backlash. What motor does the one you are looking at have?

26-08-2015, 05:16 PM
The harmonic drive units look good, I chose the belt driven type knowing I'd have to re-engineer it to deal with backlash because I wanted the through-capacity for working on long parts,

- Nick

26-08-2015, 05:20 PM
Hi - Nema23 57mm 3A 2-phase 4 wire.