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  1. #21
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    And a video, no endstops yet:


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  3. #22
    Administrator bolsoncerrado's Avatar
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    If you would go the TRinamic route, you could avoid having to add endstops.....

    But AMAZING JOB! Congratz. The sound of the raising bed is even alien! haha

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  5. #23
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    Quote Originally Posted by bolsoncerrado View Post
    If you would go the TRinamic route, you could avoid having to add endstops.....

    But AMAZING JOB! Congratz. The sound of the raising bed is even alien! haha
    Thanks a lot! ^_^ Well, sensorless would be great, but TMC2130 is not yet supported by smoothieware, as far as I know...
    Could be my future upgrade!
    Last edited by Kiza; 03-26-2018 at 03:30 PM.

  6. #24
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    Before you convince yourself you need sensors... have you confirmed that it is actually a belt-jump happening for homing the Cube 3?
    I suspect it just hits the torque limits of the motor and what you are hearing is the motor, not a jumping belt.
    Just a thought.

  7. #25
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    Quote Originally Posted by TommyDee View Post
    Before you convince yourself you need sensors... have you confirmed that it is actually a belt-jump happening for homing the Cube 3?
    I suspect it just hits the torque limits of the motor and what you are hearing is the motor, not a jumping belt.
    Just a thought.
    Could be, I just feel safer with sensors. A friend of mine is printing the endstop mounting brackets for me, so hopefully today I'll do the first proper homing! ^_^

  8. #26
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    You are having way to much fun, Kiza!

  9. #27
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    Quote Originally Posted by TommyDee View Post
    You are having way to much fun, Kiza!
    In fact, yes, I am ^_^

    Endstops:

    29550118_10209136298363711_1774574275_n.jpg29550365_10209136298163706_1726737463_n.jpg

    Z-endstop still needs some work though. Does not fit when transparent extruder cover is installed.

    Homing:



    - - - - - - - - - -

    By the way, does anybody know, what are the settings for movement/extrusion? Steps per mm in Cube 3 firmware.
    Last edited by Kiza; 03-27-2018 at 02:31 PM.

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  11. #28
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    The bearing is 10mm OD... so (Pi*10)/(step angle*360) minus the allowance for filament crush in the driver "gear" since it represents a slightly smaller OD. This could be significant. So you could base the diameter on as little 9.5mm OD.
    Last edited by TommyDee; 03-27-2018 at 06:18 PM.

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  13. #29
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    New Z endstop, corrected. Everything fits perfectly now!

    29693481_10209148503988844_498814465_o.jpg

  14. #30
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    What, no colorful heat-shrink on the solder terminals?

    Maybe turn the y-axis switch 90*CCW (tray switch)? With wires, that may just be cleaner.
    From an ME point of view, we like to let the switch signal but not interfere.
    However, you are in a tight spot on both X and Z.
    And you have hard stops.

    - - - - - - - - - -

    oh, and maybe connect x and z to a single plate so you don't need to disturb the rail screw.

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