- Joined
- Aug 17, 2015
- Messages
- 46
As I understand it, since a stepper motor only moves a set distance when told by the computer and otherwise doesn't know where it is, there is no way manual handwheels could be used with steppers, without re-homing the machine. Since servo motors use an encoder, they should theoretically know where they are and readjust if moved by handwheels.
First, is that even right?
Second, if so, what are the disadvantages to using a handwheel with a servo set up on a cnc machine? Would it be better with a belt drive system? Is it even possible with a direct drive set up?
I'm asking because I can see where a "quick need" could come up that would make running through a cnc program more trouble than it would be worth, and the handwheels would be an advantage.
Or, is this where just investing in a control pendant and running the machine from it would be the best course of action?
First, is that even right?
Second, if so, what are the disadvantages to using a handwheel with a servo set up on a cnc machine? Would it be better with a belt drive system? Is it even possible with a direct drive set up?
I'm asking because I can see where a "quick need" could come up that would make running through a cnc program more trouble than it would be worth, and the handwheels would be an advantage.
Or, is this where just investing in a control pendant and running the machine from it would be the best course of action?