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IndustryArena Forum > CNC Electronics > Hobbycnc (Products) > Mach 3 spindle settings for STB4100 usb motion controller
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  1. #1
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    Nov 2022
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    Mach 3 spindle settings for STB4100 usb motion controller

    Hi all, I have a stb4100 mach 3 USB moard and I just got my Huanyang vfd spindle hooked up and running through the board and MAch 3. My issue is what are the correct settings in mach 3 spindle setup to accurately control the speed?
    When I hit M3 to turn on the spindle and enter S5000 for 5000rpms, my VFD readout shows 14,000 + rpms. Shouldn't the two match? I have my spindle pulley set at a max of 24000rpms and ratio set at 1. See a screen shot of my mach spindle setup settings below. Does anyone know what I need to change to get these readouts matching?

    Thank you
    Attached Thumbnails Attached Thumbnails mach spindle settings.JPG  

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