axis travel question

[lumpy2080]

Does a planetary geared stepper have any effect on the ball screw lead information entered during axis calibration?

Distance travelled in one full rotation doesn't change at the nut....but the number of rotations at the stepper does.

I have 10:1 reduction and am curious how it may affect the data entry during MASSO setup.

It may end up it slows things down way too much but having that torque is nice.

 

[buschbwbusch]

This is definitely going to slow things down by a factor of 10.. however u will not have to chop steps to get accuracy.. usually a stepper is 200 pulses per rev or 1.8 degrees per pulse not too accurate however with the 10 to 1 gearbox u will already be at .18 degrees per pulse plenty accurate just be sure to pic stepper drives that do not force u to chop steps at a minimum rate of 10 to 1 again. Then essential you have slowed it way down 10x10 slower... way to slow. And with there being a maximum frequency of the pulse 130 mhz or something like that you can easily limit yourself to a very slow federate. If you are milling and can t get at least 60 in/min then u need to rethink the approach you are taking. Btw servos are the way to go. Check eBay there are now very cheap step and direction driven ac servos u can get. As a matter of fact I could set up some nematode 34 servos for u plug and play for less than 300 an axis. Steppers are cheap but they are hobby motors and very limited in speed.