Jump to content
Ultimaker Community of 3D Printing Experts

printer prints layers too thin

Recommended Posts

i just bought a tevo tornado printer , i set it up and it ran like a charm at first, But after the second print my extruder will only print the thinnest layers you can imagine and then prints in the air.

I checked my code, the layer hight did not change.

i checked the motor that feeds filament into the hot end. works fine.

I took the hot end apart and clean out the filament, i could almost breathe through it.
when i push the filament back in and push it in manually comes out just fine.

only when i print do i run into this issue.

Share this post

Link to post
Share on other sites

Probably one of two problems given that it extrudes OK if you manually feed it.


Your filament is not good (i.e. too wide in places) and is sticking in the bowden tube. If you are pushing the filament through the tube yourself you should be able to feel this and if you have an appropriate tool measure the width of your filament at various points to see if it is OK, 2.85 +/- 0.05.


Maybe more likely is the knurled wheel that feeds the filament. This has an adjustment which modifies the pressure of the wheel on the filament - too loose and the filament feed will be inconsistent or not happen at all; too tight and you will eat into the filament. Pull out the filament and finger touch the filament at a point after it has been through the wheel. There should just be a very slight roughness; if smooth the wheel is loose and not engaging; if really rough then you are too tight.


Also if you have been printing too tight then small bits of filament will start to clog up the teeth in the knurled wheel and eventually you will have a smooth surface instead of teeth and the filament will slip and not be fed properly or not at all - you can clean the stuff out with a sewing needle.

Share this post

Link to post
Share on other sites

I've recently had something similar happen on a printer that I own.  It turns out upon updating Cura to version 3.6 that my default filament size was set to 2.85 and not 1.75 in the machine settings for print.  After updating this I made sure to save the file as a new name prior to re-printing the object.  This ended up working for me as no matter how many times I changed the settings the layer sizes would not change.

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
      • 114 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!