Originally Posted by
dougie329
I would like faster rapids and feeds out of current setup and for future builds on a cnc router which has nema 23 stepper motors (425oz, 3Nm) (2 sync`d on y axis), 48v power supply and gecko G540 driver. I have 5mm pitch 16mm dia ballscews on all axis at moment. I want to keep these sizes and components if possible.
Do I:
1) gear it up using pulleys?
2) Get some larger pitch ballscrews ie 10 or 16mm pitch ones?
what would be the advantages of each method and potential problems?
Thankyou
What rates are you getting, how long is the axis, what is the motor coil characteristics (voltage, current and inductance) and what is the symptom of your at your maximum (steppers miss steps, software is at max, leadscrews whip, etc)?
Motor rpm's are affected by motor coil voltage and coil inductance. A lot of time the larger nema23's have a high coil inductance which is problematic to higher rpms.
Phil, Still too many interests, too many projects, and not enough time!!!!!!!!
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