Need Help!- Which Keling Stepper with G540?

[electro5]

Hello all,

I'm sure this has been asked a zillion times...

I have a small tabletop homemade router/mill that I've finally got all the backlash out of and it's working great except for one problem. It works great at really slow speeds but if I try to cut fast at all it misses steps and my cuts all end up offset from where they're supposed to be, etc.

I'm currently using the HobbyCNC EZboard (which works great) and 127 oz-in PK266-02A motors for all 3 axis. I'm using 18" 1/2" - 10, 2 start Acme screws with DumpsterCNC AB nuts. I'm using the typical 24V power supply
recommended by the HobbyCNC folks with the transformer from MPJA.

Though the HobbyCNC board works, I'm thinking it is time to upgrade to the G540. I am planning on cutting mostly wood, plastic and milling holes in aluminum electronics enclosures.

My question is, which one of the Keling steppers is the right size for this small machine? Will the 270 oz-in be enough or should I 381 oz-in?

Also, if I change to the G540 should I up my power supply to 48V?

This is my first post and I can't tell you guys how much I've learned lurking in this forum!

Any advice would be very appreciated!

[doorknob]

While I can't answer your question directly, I can say that the 381 oz. inch motor with a 48 volt supply is well matched to the capabilities of the G540, and many people on this forum are using that combination.

[electro5]

Thanks, I am leaning towards that combination...

[electro5]

So I'm looking at this kit:

Gecko Diver G540 3 axis kit
KL23H2100-35-4B 381 oz-in motors
KL-350-48 48V/7.3A power supply

Does this make sense with this setup? I'm not sure of the design considerations when using the short 1/2-10 2 start screws and the 381 oz-in
motors. I'm really new here, am I even posting to the right forum?

Thanks,
Jim