Jump to content
Ultimaker Community of 3D Printing Experts
kris

Experience with new UM2+

Recommended Posts

Hi guys

Wanted to share some experience on my new UM2+ after 560h of printing.

I operate a few UM2s and after approximately 200h of printing I have to exchange the PTFE coupler with a fresh one (30% glass filled). Otherwise; Underextrusion. Apart from that, no major problems. Printing all sorts of materials but never mix on the same machine.

For the new UM2+ underextrusion has occurred for the first time after 560h. The new TFM PTFE bushing still looks OK so the cause mighty be found somewhere else. In any case I exchanged the bushing for a new one (not TFM though, still have to source the material).

When taking apart the head I noticed that the cylinder which replaces the spring was not installed properly; it was misaligned due to a very tight fit. The TFM coupler had also been squeezed heavily against the nozzle, properly due to thermal expansion.

But have to say; a very good performance improvement. I believe it is save to say that Ultimaker listens to people's feedback. Awesome.

I use active cooling for the feeders on my old UM2s, so I will not be needing the upgrade kit. But I will upgrade to the new coupler in combination with the constant distance spacer.

Cheers

Kris20160328_132227.thumb.jpg.1d55b85d4804226237a8c483e7728961.jpg

20160328_132227.thumb.jpg.1d55b85d4804226237a8c483e7728961.jpg

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

  • Our picks

    • "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!