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

Modification of upgraded extruder drive

Recommended Posts

The new upgraded extruder drive is great. Maybe the biggest improvement of my Ultimaker.

Unfortunately I had some problems with the extruder in the last days. The extruder was eating

up my filament because the delrin ring deformed and was blocking the extruder.

BTW: Using a soft material like delrin to add pressure to the filament is not a really good idea.

The solution was to replace the delrin ring with a metal ring that would not deform. A perfect match

to the exisiting 3x8x4 ball bearing is another ball bearing (8x14x4 - around 1€):

bb1.jpg

The new BB is visible in the lower section of the picture. Just throw the ugly delrin ring away and

slide the new BB over the old BB.

bb2.jpg

You can clearly see the wear on the delrin ring. I am quite opimistic that this will not

happen with the new ball bearing. ;)

Share this post


Link to post
Share on other sites

the new new kit from ultimaker, where you get all the plastic parts as one complete injection molded kit.. is that also delrin material or something different ? I have my delrins from the new kit sets and they seem ok... printing atleast 15hours every day at the moment..

But I like the upgrade idea..!

Ian

 

Share this post


Link to post
Share on other sites

Chri -

Do you realize that your extruder clamp isn't closed properly? That may be why you were getting grinding problems before. If you squeeze the clamp all the way, and then push the lever so that the bolt is all the way at the bottom of the slot before you rotate it to horizontal, then it will work a lot better.

 

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  

Announcements

  • Our picks

    • Architect Design Contest | Vehicles.
      We're open for entries! - Design and submit your 3D designs of architectural entourage - vehicles - for a chance to win a large filament pack. Presenting an idea, an architectural design or something as big as an urban project isn't easy. A scaled model can really help to get your idea across.
        • Like
      • 25 replies
    • What The DfAM?
      I'm Steve Cox, an experienced engineer familiar with 3D printing. I wanted to share some DfAM guidelines with this community to help and make stronger parts.
      I'm also an Autodesk Certified Instructor for Fusion 360, so many of the images in ...
        • Thanks
        • Like
      • 23 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!