Is 1600 step/mm correct for Z?

Discussion in 'Calibration, Help, and Troubleshooting' started by Stefan, Mar 7, 2016.

  1. Stefan

    Stefan Well-Known Member

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    Hi,
    When I move my Z axis for 10 mm it only goes 5 mm.... so what is wrong? current 1600 steps/mm or micro stepping (need to check)? What should I adjust?

    bye
     
  2. Mike Kelly

    Mike Kelly Volunteer

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    1600 is correct for TR8*2 lead screws. Microstepping wouldn't make sense as you'd go higher (8x microstepping would move twice as far as 16x)

    Did you get that value from a print?
     
  3. Stefan

    Stefan Well-Known Member

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    Hi,
    I'm going slowly :)
    I simply put a ruler to the bed, like when you install the lead screws, and moved the bed to the 30 cm indicator with the LCD 1 mm and 0.1 mm.
    Then I moved the bed +10 mm in the LCD panel and checked the indicator... 29,5 cm
    send the bed back top 30 cm and did +10 with Printrun/Pronterface result the same 29,5 cm.

    From my understanding this is not correct.
    So since you said 1600 steps/mm are correct my microstepping is wrong, I have to check this evening.
    Thx so far.
     
  4. PsyVision

    PsyVision Moderator
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    Do you have the correct motors on the axis? There are different sets, 0.9 degree and 1.8 degree. I can't remember which go on the extruders and which are the z-axis.
     
  5. Stefan

    Stefan Well-Known Member

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    Ahahah..... I hope not I need to check it. Tried X and Y and they are ok.... But I could have swapped Z and E ....
    ... All that screws

    But since I wanted to install additionally parts like front power button, pas pi USB out, USB switch I have to do it anyway... Thx bye
     
  6. Mike Kelly

    Mike Kelly Volunteer

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    1.8 on Z, 0.9 on E.

    I'll figure out this whole motor thing eventually I swear.
     
  7. Stefan

    Stefan Well-Known Member

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    Thx all for the help.
    Yes E and Z motors where exchanged..... now 1.8 (shorter) on Z and 0.9 (longer) on E.
    But my evil disassemble skills have come into play... I count 30 screws, 30 tap nut thingys and only 29 square nuts....
    I have to search, which is Ok I have to wait any way for some upgrade parts
     

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