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  1. #25
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    Apr 2018
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    32

    Re: Denford MicroMill 2000 rebuild

    A friend of mine laser cut a panel that I can attach the boards to. I don't have a lot of spare time, but I test-fitted it to the mill case today. All fits great, so in the oddments of time that I can spare I can start fitting and wiring up the motion and stepper control components. The panel stands off the back wall by 6mm to allow for board fixings.
    Attached Thumbnails Attached Thumbnails IMG_5626.jpg  

  2. #26
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    Join Date
    Jan 2005
    Posts
    10524

    Re: Denford MicroMill 2000 rebuild

    Quote Originally Posted by TinyWork View Post
    A friend of mine laser cut a panel that I can attach the boards to. I don't have a lot of spare time, but I test-fitted it to the mill case today. All fits great, so in the oddments of time that I can spare I can start fitting and wiring up the motion and stepper control components. The panel stands off the back wall by 6mm to allow for board fixings.
    If that is Plastic that is not a good idea, the mounting plate should be steel or aluminum, this is then used as your Ground / Earth Plane
    Mactec54

  3. #27
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    Apr 2018
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    32

    Re: Denford MicroMill 2000 rebuild

    Yes, it's an engineering polymer. There is no ground or earth required on the low voltage control boards – each has a 24V input with no support for grounding. All the high voltage equipment has been grounded to the frame, however.

  4. #28
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    Dec 2009
    Posts
    488
    Like Mactec said, not a good idea to use plastic for a back panel. Static and non metallic. I wouldn't do it. Go to your metal supplier and have them cut you a piece of .100" thick aluminum sheet instead.

    Marty

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