[Yellowbeard]

Does anyone know the best place to buy servo motors at a decent price?

[beegner]

Hey Yellowbeard.
Check post out listed under "Gecko"
http://www.cnczone.com/forums/showthread.php?t=13425
surplus center has a decent deal right now.
Good luck

[Evodyne]

Beegner's right, those are a good deal-but be careful. Those are brushless motors and require 100 volts from the controller to operate without derating. So while the motors are cheap, the drives aren't.

I'm guessing you want cheaper motors that are compatible with less expensive drives too. So what are you trying to drive and how big do the motors need to be? Small? Huge? And have you checked the classifieds right here at the 'zone? Or eBay?

Evodyne

[ger21]

The Rutex brushless drives are $200. The brushless servos are $35-$40.

Gecko DC brush servo drives are $115. If you can find comparable servos for $125, then it's a toss up. But good servos are hard to find at good prices.

[Yellowbeard]

I am looking to convert a mill/drill to cnc. http://www.use-enco.com/CGI/INSRIT?P...PARTPG=INLMK32

I had thought of using stepper motors, but the more I search the forum, it seems, to me, that I'd be better off with servo motors for maintaining cutting speed when working with hard materials, such as steel.

From what I've seen from what others have done when build their mil/drills is that I need at least 400oz motors and that DC servos would be better for my project than AC servos due to the increased power requirements for ACs.

[Evodyne]

Do you need 400 oz-in at the motor shaft or at the screws? You'll be gearing down to reduce speed by at least three to one, maybe more. This gives torque multiplication at the screw. So smaller motors might work.

Evodyne

[carlnpa]

Going back to Yellowbeards original question. Is there a good low cost consistent source for servo motors?

[ger21]

Depends what low cost is, but check out www.homecnc.info