Jump to content
Ultimaker Community of 3D Printing Experts
gardnert

Broken AA Core tab

Recommended Posts

Hey everyone!

My institution recently purchased a UM3 and a scanner on grant money for an upcoming project. I've been 3D printing at home for a couple of years now (prusa i3), and since we're a pretty small college, I've been tasked with a lot of setup/answering questions: something I don't mind at all.

Yesterday I had a print fail (I'm thinking retraction settings, but that's neither here nor there). I was going to pull the AA core out to check for clogs, and to change out the filament. I ran the core swap process (an absolute dream coming from reprap land), the head moved to its spot and I took it out: easy peasy. But when it came time to put it back in, the clear tab at the top (polycarbonate?) snapped, right at the two thinnest spots.

I did nothing different and applied the same pressure when I was setting up the printer and removing said core: has this happened to anyone else? I know UM hasn't released the schematics yet, but has anyone printed replacement parts (yet)?

Thanks for y'alls input. So far this has been a super great machine to work with (and I've been using Cura as my own slicer for years, well done!)

Share this post


Link to post
Share on other sites

Hi and welcome!

Nice you enjoy this machine. About the core plaatic broken, I don't see anything wrong here on your side, you should be able to get a replacement from your UM reseller.

Unless someone sees it otherwise?

Share this post


Link to post
Share on other sites

Hi, gardnert, that definitely doesn't look good. Since you're in the US, reach out to our team at Support@fbrc8.com.

 

Thanks! Our original vendor pointed us to you, small world! The return/replacement process is already underway. Thanks for the heads up!

  • Like 1

Share this post


Link to post
Share on other sites

Mine broke around the screw, the local dealer 'Creative tools' here in Halmstad Sweden say they don't have it as spare part, just the hole print core.

 

that is correct, you'd replace the whole printcore. replacing this 1 part is a total pain and it's better to just replace the core.

Share this post


Link to post
Share on other sites

Hello,

You can print a new one!

The file is on GitHub

https://github.com/Ultimaker/Ultimaker3

file is: 2129-F

STEP to transform into STL or you can download from below!

Original Tab is Polycarbonate (PC). Print it in CPE or in CPE+ and it won't stress crack anymore and it will be almost transparent.

PC  stress-cracks under stress when in contact with oil...

 

Enjoy!

IMG_5261.jpg

IMG_5260.jpg

2129-F (repaired).stl

Edited by ludo06

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

×

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!