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General Mach Discussion / Re: Need some advice on new CNC
« on: June 19, 2014, 10:06:19 PM »
How much weight are you lifting with the Z axis? My Z axis uses 1/2-10 acme, and I can get about 70ipm with a 250oz motor.
Depending on the weight your lifting, you'd probably be better off with a much smaller motor, or a 5 start screw. Larger stepper motors don't spin as fast as smaller ones, and 1/2-10 acme requires high rpm's to get good speeds.
Are you direct driving your pinions? Your machine would probably be much smoother, and have more power if you used a belt reduction.
Depending on the weight your lifting, you'd probably be better off with a much smaller motor, or a 5 start screw. Larger stepper motors don't spin as fast as smaller ones, and 1/2-10 acme requires high rpm's to get good speeds.
Are you direct driving your pinions? Your machine would probably be much smoother, and have more power if you used a belt reduction.