Most Frequently Asked Questions

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This page is maintained by the Zen Toolworks community. It relies on people like you to add additional questions and answers that you have experience with.

If you add to this page, please include any links to sources. For example, if my question was answered in the CNC Zone forums, I'll include a link to it at the end of the Q/A entry.



Which wire is Phase A, A--, B, B--?

This has been explained in a current Wiki article.

Go to: Figuring out the Stepper Motor Wiring Phases


How can I use one power source for both power jacks on the Univelop TB6560?

This will be updated as soon as I have confirmed a few necessary details.


How do I figure out the "Steps Per" in the Mach3 configuration?

This value is a multiplication of a few other settings:

1. First, figure out the Steps per Revolution [SPR]:

  • The Nema motors are angled at 1.8 degrees so divide the circumference by the angle
    • 360 / 1.8 = 200 steps per revolution

2. Now we need the Revolutions/Turns per Unit [TPI]:

  • Our lead screws are pitched at 1.25mm per revolution which results in 20.32 revolutions per inch.

3. Find out the Resolution Support (microsteps) of the driver card:

  • Most cards support up to 1/16 (16 microsteps per step)
    • TB6560 supports the "Full" step as well as 1/2, 1/8, and 1/16 steps

To get the Full Steps per Unit, multiply StepsPerRev x TPI:
200 x 20 = 4000 steps per unit

To get the Micro-Steps per Unit multiply StepsPerRev x Micro-steps x TPI:
200 x 16 x 20 = 64,000 steps per unit



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