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Big OX 1500x1000

Discussion in 'CNC Mills/Routers' started by Zach S, Jul 3, 2017.

  1. Zach S

    Zach S New
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    Any time! And thank you. If you have any questions I will try my best to answer them.
     
  2. SherlockMei

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    Hi, my hardware have almost done, same as yours, it's awesome!!!. Thank U very much!
    Now I begin to set software. It can work now, but I don't know the steps is right.
    I have a question about grbl setting in Z axis setp. I use this 8mm Metric Acme Lead Screw as my Z axis, 1/16 microstepping. But in Grbl, how can I set $102 ?I set it 1600.
    In RepRap Calculator - Prusa Printers , I don't know which num is "Leadscrew pitch", 8 or 2? Because I'm in China, and not good at English.
    About X and Y, I set $101 102 = 53.3, is it right? I use 3GT belt and 20 tooth pulley.
     
  3. Gary Caruso

    Gary Caruso OpenBuilds Volunteer
    Staff Member Moderator Builder

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    the lead screw will travel 8mm per turn (so the lead is 8mm) 16x200=3200 steps per turn, you will have 3200/8 = 400 steps per mm, so $102=400
    for most people 8th micro stepping is plenty for the screws and that would make the $102=200
    at 200 steps per mm you have 1/200 or 0.005mm per step.

    hope this helps.
    Gary
     
  4. Zach S

    Zach S New
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    Here’s a look at my current settings, I have the gt3 belt and 8mil lead screw also.
     

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  5. Zach S

    Zach S New
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    Gary,
    My setup is 1/8usteps on my control board. Sorry for the late reply was at work. But I attatched some images of my settings in the previous post.

    Zach
     
  6. Gary Caruso

    Gary Caruso OpenBuilds Volunteer
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    Ok, then if you are running 1/8 microstep then your settings look correct, if you have 20 tooth GT3 pulley.
     
  7. SherlockMei

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    Thank u, it's useful for me.
     
  8. SherlockMei

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    Thanks , very clear, I have set it 400, work nice!
     

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