Thanks for replys, it doesnt have ballscrews which is why i was concerned about backlash but hopefully backlash compensation would help out with that. 8nm is interesting, this is the kind of thing i need to know as i dont know what motors to use. I understand that the motors are rated on holding torque. What size motors do you think i would get away with(would i need 12nm), i dont mind if its a bit slow but want it to be useable, so i could gear it down 2:1 or something but i dont know how fast it would be.

Thanks