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Z axis step/unit calibration

Discussion in 'Troubleshooting and Build Support' started by Doane, May 23, 2011.

  1. Doane

    Doane New Member

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    I just completed my build (#51) and have tried to calibrate prior to a first cut. X and Y are right on with the settings file that came with the support disc, but the Z axis is pretty far off. I believe the settings file had the Z axis at around 700 steps/unit, but I had to lower it to 405 to get the Z axis to calibrate. Any one have any suggestions as to the cause?

    Also, where should the cutting bit be positioned when zeroing the Z axis? Should be just touching the top surface of the material to be cut?

    Thanks!

    Doane
     
    Doane, May 23, 2011
    #1
  2. 3DMON

    3DMON Moderator Staff Member

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    700 is too high. If your able to get 400 without losing steps then that is really good. I can't get my z to go past 300.

    As for zeroing the bit. Yes right on the top of the surface.

    Have fun cutting!
     
    3DMON, May 23, 2011
    #2
  3. rcav8r

    rcav8r Moderator Staff Member

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    Make sure your pulleys are like those shown in the video. I reversed mine as I had slight binding. I get more torque at the expense of speed. I had to modify my settings as a result. I forget the exact values, but can look them up for you if you want.
     
    rcav8r, May 23, 2011
    #3
  4. Doane

    Doane New Member

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    Thanks guys! I'm going to try my first cut.
     
    Doane, May 23, 2011
    #4

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