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Thread: Stepper gearing and resolution

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  1. 01-14-2013, 10:50 PM #1
    rogerfries
    rogerfries is offline Member
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    Stepper gearing and resolution

    I'm building a stepper motor based CNC Plasma table. We can skip for now the stepper/servo debate and stick with stepper.

    I'm using NEMA 34 motors from keeling. I could not find the max RPM on the web site, but from poaking around on forums I've heard 200 tossed around as the Max RPM for a NEMA 34. Not sure this number is accurate or not. If 200 is true and I had my table grades so that 1 step is 1 thousandth. 200 RPM x 200 steps per revolution roils only yield 40 IPM. Is my math correct? 40 IPM is way too slow so 1 thou per step is way too much resolution. Perhaps this is where the micro stepping comes into play? Am I off track here? On a typical machine of this type what is the 1 step resolution?

    Thanks
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  2. 01-14-2013, 10:53 PM #2
    Al_The_Man's Avatar
    Al_The_Man
    Al_The_Man is offline Community Moderator
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    Quote Originally Posted by rogerfries View Post
    We can skip for now the stepper/servo debate....
    ......Aw that's no fun!
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.
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