PWM spindle governor question

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  • August 29, 2013 at 10:41 pm #4436
    fs
    Member

    Good evening, everyone

    With steppers on their way from China and TinyG almost fitted on its box (should be done this weekend, with a mecanical solution for the reset switch access), it’s time to worry about the spindle. Actually, its governor. I have seen some MACH3 compatible governors on AliExpress with PWM input, but have no idea if TinyG can operate with them. Any recommendations on this matter?

    August 29, 2013 at 11:03 pm #4438
    Riley
    Keymaster

    Right now TinyG has support for PWM on the PWM port. It, by default is set to be used with PWM Speed Controllers / hobby servos etc. In fact OtherLab uses it with an ESC (electronic Speed Controller) for a brushless motor as a spindle.

    That being said I would have to see what you are talking about with your choice of a “governor”.

    Can you provide more details? I would also like to see what you are making. If you would like to share… Perhaps I can make a blog post or share it on the Synthetos G+ account.

    Riley

    August 29, 2013 at 11:23 pm #4439
    fs
    Member

    A governor, judging for what I learned so far, is pretty much an ESC, if I understood it correctly. I never laid hands on such hardware, but it seems to be like a fan speed controller that is electronically manageable. Those are sold either individually or in kits <a=”http://www.aliexpress.com/item/DIY-engraving-machine-300W-air-cooled-spindle-motor-speed-controller-kit-MACH3-control-G-code-governor/752912892.html>like this one.

    I am making a CNC, but have nothing to show right now. In a couple days, I will have TinyG’s enclosure ready, then I’ll have some pictures to show. The other parts are either on their way or not bought yet. That’s the case for the frame, as the local hardware store sells extruded aluminum but only in 6 meter pieces. I can’t bring this home before the right time, there’s some wife factor involved.

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