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

Modified extruder knocking sound problem

Recommended Posts

Hello everyone.

I have a modified extruder, not exactly sure what model is it, but looks similar to Airtripper's Bowden extruder (http://www.thingiverse.com/thing:35404)

So recently a problem appeared: extruder is making knock-like sound when printing. The one you would expect like if the speed is too fast, but the temperature is not high enough. When printing the first layers, good bed leveling might help, but to fix the extruder sound I need to lower the bed too much, so that the first layer would not stick at some places. And if I print with that sound, the nozzle often will jam and the print will fail. But the problem is, that this sound appears not only at the first layers, it continues to knock during whole print. I had no such problem with the extruder before, even when printing first layers too close to the bed. Tightening the screw on the extruder makes knocking faster. Untightening leads to underextrusion or filament slipping off the extruder. Tried different speeds and temperatures.

Here is a video:

Any ideas how to fix the extruder? Thanks in advance.

 

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!