Jump to content
Sign in to follow this  
blecheimer

Modification of upgraded extruder drive

Recommended Posts

Posted · Modification of upgraded extruder drive

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
Posted · Modification of upgraded extruder drive

Thanks for the tip. I had a look at my delrin roller and it too is showing signs of wear. Not as bad as yours but obvious signs that it's deforming.

Share this post


Link to post
Share on other sites
Posted · Modification of upgraded extruder drive

@blecheimer: So, did it fix your problem? I'm about to get a bearing! (I would take a thicker one if I could, but doesnt look very standard).

 

Share this post


Link to post
Share on other sites
Posted · Modification of upgraded extruder drive

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
Posted · Modification of upgraded extruder drive

Ian -

With my dual extrusion kit, it looks like the formerly delrin ring is now injection molded plastic. I think I'll go straight to a bearing when I add the second extruder.

 

Share this post


Link to post
Share on other sites
Posted · Modification of upgraded extruder drive

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
Posted · Modification of upgraded extruder drive

I did the zip-tie thing on my extruder as well It seems to really help

 

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

  • Our picks

    • Ultimaker Cura 4.0 | Stable available!
      Ultimaker Cura 4.0 is mainly focused on the improved user interface and cloud integration.
      As always, we want to collect your user feedback for this release. If there are any improvements you can think of, feel free to mention it here and help us to shape the next release.
      • 86 replies
×
×
  • Create New...

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!