Jump to content
Ultimaker Community of 3D Printing Experts
Sign in to follow this  

Printer doesnt print straight after heated bed upgrade

Recommended Posts

"leaning downwards" usually means leaning left, right, forwards or backwards. These are caused by either a loose X belt or a loose Y pulley - usually the on on the motor which is the hardest one to get to. But really you should post a picture of a "leaning downwards" print. To post a print do "gallery" in the top left of this page, then click "upload" button. Later make a new post and click "my media" next to smile icon.


Share this post

Link to post
Share on other sites

First of all front/back lean would be the Y axis. So your X axis is fine you only have to worry about Y.

Two things can cause that lean. One is short belt rubbing on wood frame. The other is loose pulley screws. To test for rubbing, move the head front and back and look in the rear left corner at the Y stepper and watch the short belt. Does it twist different directions when you move the head? If so it is rubbing the wood. Add some washers for spacers under the 4 standoffs for the motor mount. Or move the pulley closer to the stepper (loosen set screw, slide so almost touching - maybe .5mm - then tighten the hell out of set screw).

The UMO also should have come with a spare set of "silver" set screws. The ones that comes with the pulleys are black. The silver ones are better (pointier). I'm still using my black ones. I just tightened the hell out of them. So tight that the hex wrench is twisting.

Make sure you get all 6 (six) pulleys on the Y axis. Most especially the 2 on the short belt (motor and above).


Share this post

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
Sign in to follow this  

  • Our picks

    • How to 3D print with reinforced engineering materials
      Ultimaker is hosting a webinar where we explain how you can achieve and maintain a high print success rate using these new reinforced engineering materials. Learn from Ultimaker's Product Manager of Materials and top chemical engineer Bart van As how you can take your 3D printing to that next level.
      • 0 replies
    • "Back To The Future" using Generative Design & Investment Casting
      Designing for light-weight parts is becoming more important, and I’m a firm believer in the need to produce lighter weight, less over-engineered parts for the future. This is for sustainability reasons because we need to be using less raw materials and, in things like transportation, it impacts the energy usage of the product during it’s service life.
        • Like
      • 12 replies

Important Information

Welcome to the Ultimaker Community of 3D printing experts. Visit the following links to read more about our Terms of Use or our Privacy Policy. Thank you!