Jump to content
Ultimaker Community of 3D Printing Experts

Layer does not fully fill out, doesn't reach the outline

Recommended Posts

Over the last few weeks my Ultimaker does this strange thing: as you can see on the image it first draws the outline, then starts filling out the whole layer leaving a small space between the layer and the outline. It does this in multiple directions. This I believe impacts the overall strenght of the printed object. I have no clue how to solve this. Anyone?



Share this post

Link to post
Share on other sites

This is very common on UMO and is caused by backlash which basically means the nozzle isn't moving all the way to where the stepper told it to go.

Paradoxically it is most often caused by belts too tight or too loose. If the long belts are too tight the resistance can be very high to moving the head. If the long or short belts are too loose then the head isn't moving all the way to position either.

Usually it's the short belts are too loose - loosen the 4 screws holding the motors, push down hard on the stepper and re-tighten. It's possible you need to lengthen the wood slots in the wall of the UMO but not likely.

The long belts don't need to be very tight but if you pluck them they should emit a pitch discernible by the human ear (e.g. like the lowest note on piano). As opposed to slower than 10 times per second (not audible).

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

  • Our picks

    • Ultimaker Cura | a new interface
      We're not only trying to always make Ultimaker Cura better with the usual new features and improvements we build, but we're also trying to make it more pleasant to operate. The interface was the focus for the upcoming release, from which we would already like to present you the first glance. 
        • Like
      • 130 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!