Spindle help?

[Ross77]

Thanks Gary, That makes sense. The 180v was only a guess from loadpoint. If I power up the motor from this driver at say 50v and then measure the speed compared to the design max speed can I calculate the actual voltage? I always presumed the speed was due to the PWM frequency. Do you have a suitable driver? and if so how much?

Ross77,
Have you tried that motor or actually know it runs as from the picture of the er11 collet shows a lot of glass slurry and that stuff is a killer if it gets near ant rotating shaft or bearing. Best to check before you part with the readies for a driver.

peter

Very good point. didnt even think about that. Need to build a PSU to test it then. is there any way I can accurately check for play without powering it up. Ive done the obvious checks by hand and it feels smooth with no sign of radial or axial play.

Thanks

[Gary]

You need to find out what the V per RPM is? is this motor in production? does it have a datasheet?
Yes we have drivers, and if the voltage is about 180V DC then you coudl use the BLSD range.

http://www.slidesandballscrews.com/b...ver-p-178.html

[Ross77]

You need to find out what the V per RPM is? is this motor in production? does it have a datasheet?
Yes we have drivers, and if the voltage is about 180V DC then you coudl use the BLSD range

Thanks Gary but £350 ish is a bit much at the moment. :sad:

No unfortunatly I dont know the V per RPM. and the the motor was a low volume special. Loadpoint were very helpful but unfortunaly they have moved and now specilise in airbearings, the guy who designed it has left.

The only Info I have is data from the first post and the drawing attached.

Is this going to be a waste of time or worth pursing? I had planed to put a pulley on the top and belt drive it to my Rotozip, (or wobble zip, runout is apalling) but it would be a bulky Z axis.