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Thread: How do you reverse the z direction?

  1. #1
    Join Date
    Sep 2006
    Location
    cnc routing, portland or
    Posts
    3,499

    Default How do you reverse the z direction?

    strange question but with the retro z upgrade on my prt alpha the rack is on the opposite side of the motor so i need to change the direction how do I do it?

  2. #2
    Join Date
    Apr 2007
    Location
    Marquette, MI
    Posts
    3,250

    Default

    Put a minus sign in front of the unit value for the Z
    Gary Campbell
    CNC Training & Technology
    GCnC411(at)gmail(dot)com
    http://www.youtube.com/user/Islaww1


    "We can not solve our problems with the same level of thinking that created them"
    Albert Einstein


  3. #3
    Join Date
    Sep 2006
    Location
    cnc routing, portland or
    Posts
    3,499

    Default

    Quote Originally Posted by Gary Campbell View Post
    Put a minus sign in front of the unit value for the Z
    ya got that right before I left. shopbot should add that into their instructions because it is always going to happen. I found missing nuts in the package and the wrong screws to mount the motor into the plate. plus they give you bracket to mount under neath but you don't always need it. I tried with with and I had maybe 5" of z. took it off and got it right.
    thanks for the info I will call shopbot and tell them they need to get the in the instructions.

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