steps help!!!!!!

This topic contains 7 replies, has 2 voices, and was last updated by Profile photo of trans4mer trans4mer 1 year, 3 months ago.

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  • #9751
    Profile photo of trans4mer
    trans4mer
    Participant

    ok mu build is a little different but here’s my prob… need to set marlin up for steps per
    here is my set up
    tr12 .4 start 3mm pitch
    1.8
    1/16th m/s
    trying to find out what to set up in marlin everything I do says it should be 1066.6667 but its off anyone else good with this?

    #9757
    Profile photo of Ryan
    Ryan
    Keymaster

    you didn’t give enough information.

    ramps? what drivers? what step rate? did you use the prusa calc?

    #9759
    Profile photo of trans4mer
    trans4mer
    Participant

    ok ramps 1.4
    I’m not using small divers I’m using external drivers and there set to 1/16th (3200)
    stepper motors a 1.8 step angle
    now the lead screw is tr12, 3mm pitch 4 start
    Travels 12mm (0.4724″) per revolution

    have it set now as 425 but 1mm to 3mm off still as y and x

    #9761
    Profile photo of Ryan
    Ryan
    Keymaster

    that plugs right into the prusa calc and it says 266.67

    RepRap Calculator

    #9762
    Profile photo of trans4mer
    trans4mer
    Participant

    no the 12mm and tr 12*12 are not the same with 3 m pitch

    266 ..is 12 pitch?

    #9764
    Profile photo of trans4mer
    trans4mer
    Participant

    if I use 12 mm with 3 m pitch I get 1066. and 266 with 12 mm pitch …but it 20 m to short like I said I’m at 425 I took a shot in the dark and now only 3mm extra when I hit 50 y or x movement

    #9765
    Profile photo of Ryan
    Ryan
    Keymaster

    That’s 106% try 400

    #9766
    Profile photo of trans4mer
    trans4mer
    Participant

    sweet that’s what I’m looking for been trying to figure how to do the math on it but kept messing up somewhere …..:)

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