Servo Motors

[balsaman]

What kind of motors will a G320 drive? Can I just use brushed DC permanent magnet motors with external encoders?

Eric

[HomeCNC]

Yes! You can take any BRUSHED DC motor and attach an encoder to the shaft. I get my encoders from USDigital. I use the E2 style on the G320 G340 drives. These encoders will not need a extra powersupply because they will use the +5 VDC power from the drive.

[balsaman]

Interesting.

I may go that route on my next machine.

I am thinking two servo gecko's for x and y and a stepper for z. I like that they take step and dir commands so I can use turbocnc to run the machine.

Eric

[routerman]

Don't use motors with a high encoder count (>2000) because the gecko's error trip limit is only +-127 pulses, which maks the drives trip way to easily.
I tried Geckos on motors with 4000 count encoders but had to switch to an other brand.

[CNCadmin]

Try these - http://cnczone.com/showthread.php?s=&threadid=277