Mr RB
Well-Known Member
Leadscrews are very difficult to implement. You can't really couple the screw direct to your motor/gearbox shaft as that won't take the high axial loads of 15+ lbs. So then you have to spin the nut with a belt or chain, and have the nut mouted on high axial load (thrust) bearings, which is a pain. Or you mount the screw on thrust bearings and connect the nut to the load, so then you need a system to stop the nut and load spinning but without causing drag.
It's probably best to go for a complete actuator (expensive!) or a cheaper option would be a high torque worm drive gearbox and very short lever (like I said with the windscreen wiper motor suggestion).
It's probably best to go for a complete actuator (expensive!) or a cheaper option would be a high torque worm drive gearbox and very short lever (like I said with the windscreen wiper motor suggestion).