Jump to content
Ultimaker Community of 3D Printing Experts
jambalyle

Has anyone been able to do the Atomic Method on a UM2+?

Recommended Posts

I'm no stranger to the atomic method and have used it a bunch of times on UM2's with the Olsson block upgrade.

I just got a UM2+ and am trying to follow their best practices for changing out nozzles by doing an Atomic clean of the nozzle before taking it out. Only problem is I can't get it to work like I used to.

In the past I would heat the nozzle up 210 or 230 depending on what I had loaded, then back it down to 85-105 and pull up. Worked every time with a very satisfying sound.

Now on the Um2+ if I let it get down to 100 the filament won't come up. It feels stuck. I have to increase the temp to around 120ish, but when I pull up it doesn't make the same sound. There's also clearly still filament in the nozzle. It seems like the filament is not a consistent temperature. Like the stuff at the print head is where it's supposed to be, but the segment that sits above the nozzle and just below the heat break and 3rd fan isn't.

It's also totally possible that I'm missing something. If you've gotten the atomic method to work on a UM2+ hook a brother up and tell me what I'm doing wrong.

Cheers,

Share this post


Link to post
Share on other sites

100°C seems a bit warm still. I do atomic pulls on my UM2+ at 80°C. So heat up to whatever temp was used for the filament used, wait till its back down to 80°C and pull. Works great.

Edit: Oh, and while it cools down, keep some pressure on the filament. Just enough to make sure you got the filament in nice and tight.

Edited by Guest
  • Like 1

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

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
      • 19 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
      • 18 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!