Jump to content
Ultimaker Community of 3D Printing Experts

1.75 filament in a 2.85 printcore

Recommended Posts

It's possible but you won't get very good quality. [gr edit:] And you can basically destroy your hot end with a huge glob of melted plastic if you don't print quite slow. So stick with 2.85mm.

But there is very likely going to be a 3rd party 1.75mm conversion kit.  But 2.85 works best with um3.

Edited by Guest

Share this post

Link to post
Share on other sites

@gr5, please, can we not just tell people that it cannot be done instead of giving them false hope by saying it works and risking fucking up their new UM3?

I honestly hate the video where the Adafruit guys say that you can use 1.75mm filament in the UM2, i have personally had to take apart and fix the ones at Stockholm Makerspace multiple times after newbies watched that video and bought 1.75mm filament which pushed melted plastic backwards around the thinner filament and solidly filled the hotend up to the top of the PTFE with molten plastic, causing a hell of a jam.

The fact is that 1.75mm filament will possibly extrude, but if it works it will just give you crap quality prints and it is highly probably that it will jam your hotend. Bad print quality and constant hotend jams are probably not something you want when you have bought a 3000€+ printer, so stay away from it. (if you want bad print quality and hotend jams, just go buy some 200€ kit printer with a badly machined clone hotend)

  • Like 3

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!