Originally posted by dcd121
Here is a related question. I have some 5/8" dia ball screws for all axis that travel 20 mm per turn. I plan on using a servo setup with them. I know I will have enough power and speed but would someone like to speak about the accuracy issue?
Thank you |
If connected directly to the servo it will be lower than one with 5mm/turn. But if you gear down 1:4 and do it without backlash in the gear (planetary or cyclic) , it will be the same. Your moment of inertia will be lower because you have geared down. So your motor will be able to accelerate it quicker. That's a pro.
But a gear without backlash is expensive and bulky. That's against. Unless you get a ballscrew integrated with a gearbox it's also more components to make to adapt the gear to the machine and the motor to the gear.