Need help getting a Max Z endstop to work

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This topic contains 4 replies, has 3 voices, and was last updated by  Tom Cole 1 year, 1 month ago.

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    Tom Cole

    I can get an end stops to work and home x,y and z as minimums, but I can’t get it to call Z max home, which is what I want for z. I did un-comment a line to make Z max active and I can get marlin to report back that it is “triggered” when closed, so I know I have it wired to the correct pins, but try as I might, I can’t get Repetier to home Z at max. I wire it up and set everything in Repetier as I think it should be and when I press “Home Z” it starts going down, not up.

    I have since re-flashed Vicious 1’s new/fixed RC8 fresh so all settings are stock.

    Beginning with that fresh version, what do I need to un-comment/alter in the firmware to get this to work, and what settings do I need to set in Repetier.

    Any tips are appreciated.

    And any ideas for mounting the endstop for Z max would be great.



    RC8 does not work, not even the bug fix. I Thought I took all the links down for it. sorry.

    I have not done it this way but in the firmware I think you need to active the max endstops, make sure they are wired correctly, set your z height correctly and tell it to home to max.

    I don’t use them so that is as much help as I can give you.


    Martin DB

    What’s the problem with rc8? I’m using it with laser, milling and vinyl cutting without issues.



    The combination of the lcd and the giant number of z steps will cause random failures. The bug fix branch works but then the LCD menus fail.

    It is a random problem. be-careful when milling, other non z axis activities are fine, cutting, lasing.


    Tom Cole

    I downloaded and installed it as soon as you posted and never checked again. I’ll go back to previous firmware and see if that works.

    FYI, I ran a milling program that drilled 480 holes 25mm apart to make a 500×500 grid. The holes were 10mm deep and I pecked at 2mm per z step and it did not fail. Granted that’s not contour milling so the z steps were not severely numerous.

    I’m glad it didn’t fail because that was my first Tom’s brain to Fusion 360 drawing to Estlcam to Repetier to MPCNC project. I had a beer to celebrate linking all the steps! I’m used to watching Haas VMC’s cut aluminum and comparatively, this was like watching grass grow. But I have seldom been so satisfied.

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