Jump to content
UltiMaker Community of 3D Printing Experts

Ultimaker Original - Shifting & hard to move head


N-DeeNL
 Share

Recommended Posts

Posted (edited) · Ultimaker Original - Shifting & hard to move head

I got my Ultimaker Original last week, bought it off someone who already assembled it. When i picked it up it couldn't do a home command, making a lot of noise and the head could not reach the end stops.  I cleaned the smooth rods and applied Unilube (this one).

I was able to print a robot and do 2 print jobs (10hrs and 5hrs) but today i had my first print job that i had to cancel due to shifting layers in the X direction;

20170117_083053.thumb.jpg.689ca3a5659951bd305eddc7eb51714e.jpg

I also noticed the motors getting to hot to touch, maybe because the head is so tough to move? On my steel Prusa i3 i can move the head with my pinky, if i try this on my ultimaker it just moves the entire printer..

Also i got some play/movement in the smooth rods themselves, i can move them a couple of mm (doesn't happen during print, needs a little force). The x rod in the front has no play.

Fixes i was thinking of;

* Printing out the new end caps with spacers

* See how head movement is without the belts, maybe i need new rods

* Tighten the pulleys - very tight;

file-HIpXQQRZe7.jpg.8a29ef91fe1ee7a0c447fc62553f5f29.jpg

Is there something else i should try to get it running smooth?

20170117_083053.thumb.jpg.689ca3a5659951bd305eddc7eb51714e.jpg

file-HIpXQQRZe7.jpg.8a29ef91fe1ee7a0c447fc62553f5f29.jpg

Edited by Guest
  • Link to post
    Share on other sites

    Posted · Ultimaker Original - Shifting & hard to move head

    You could try to see if the x/y shafts are aligned with the belts/pulleys

    DSC03107_display_large_preview_featured.jpg

    Ofc you 'might' need to check if the X/Y are square/calibrated after that.

  • Link to post
    Share on other sites

    Posted · Ultimaker Original - Shifting & hard to move head

    Did your printer come with the calibration sticks? These are two wood parts with a hook on one end and notches on the other that are used to make sure the x and y axes are square. You can see how to use them in the UMO/UMO+ assembly manual.

    Once the axes are adjusted, make sure all the pulley setscrews are really tight. Also make sure the pulleys on the x and y motor shafts are tight. You will probably need to remove the motors to access those setscrews.

    The print head should be able to move smoothly, but with some resistance, diagonally. I don't think I can move mine easily with my pinky, but my index finger could do it.

  • Link to post
    Share on other sites

    Posted · Ultimaker Original - Shifting & hard to move head

    Also make sure that the shaft end caps aren't binding up and preventing the shafts from rotating. I had to put washers under one of them on my UMO+ to provide some clearance.

  • Link to post
    Share on other sites

    Posted · Ultimaker Original - Shifting & hard to move head

    Thanks for the suggestions, just to let you guys know i haven't abandoned the topic, ive printed the open end caps and spacers. And plan to install the twister blocks while im at it.

    Will post an update when i had a moment to install it, hopefully it solved the issue by putting these parts on it and reassembling the printer :)

  • Link to post
    Share on other sites

    Create an account or sign in to comment

    You need to be a member in order to leave a comment

    Create an account

    Sign up for a new account in our community. It's easy!

    Register a new account

    Sign in

    Already have an account? Sign in here.

    Sign In Now
     Share

    • Our picks

      • New here? Get ahead with a free onboarding course
        Hi,
         
        Often getting started is the most difficult part of any process. A good start sets you up for success and saves you time and energy that could be spent elsewhere. That is why we have a onboarding course ready for
        Ultimaker S5 Pro Bundle, Ultimaker S5, Ultimaker S3 Ultimaker 2+ Connect.   
        They're ready for you on the Ultimaker Academy platform. All you need to do to gain access is to register your product to gain free access. 
        Ready? Register your product here in just 60 seconds.
          • Like
        • 14 replies
    ×
    ×
    • Create New...