Ultimaker 2 lose belt

[cschneer 0]

Good morning!

 

I am new to this community. My school has just received an Ultimaker 2 by donation. I attempted to do a test print and noticed the front belt is fairly loose and it appears to have been handled improperly. As a result, teeth are slipping and printing is impossible.

 

Am I able to tension the belt or replace it, and do such instructions exist online?

 

Thank you,

Corey

Edited February 19, 2020 by cschneer

[geert_2 558]

Belts are replaceble, and the procedure should be somewhere on the Ultimaker-site. If you are a bit handy, you can do it yourself. Your local dealer should be able to provide the belts. Or you can have him/her do it.

 

While you are at it, I would take the time to have a look at the feeder too: is that clean and in good condition?

 

Also clean the metal rods near the belts, and lubricate them with a thin oil that does not dry out.

 

And also clean the nozzle with cold pulls or "atomic pulls". See the official method on the Ultimaker-site, or use my gentle method here (I am no Ultimaker-staff, just a user):

https://www.uantwerpen.be/nl/personeel/geert-keteleer/manuals/

 

And check if the white teflon coupler above the nozzle is still okay, not deformed, not burned.

 

[Enigma_M4 120]

Hi Corey,

 

if the belt is not worn out to much, it possibly could be tensioned very easily, as described in this video by @fbrc8-erin:

 

 

As the sliding blocks (which contain a build in tensioning spring) at the UM2, UM3 and S-Series are the same, this procedure might work for your UM2 as well.

 

It would be also a good idea to check the play on the axles and -if needed- calibrate the print head as described here:

https://ultimaker.com/en/resources/50679-check-for-play-on-axles

 

Regards

 

[fbrc8-erin 283]

The procedure should definitely also work on your UM2. The sliding block set up is essentially the same on all the UM2/UM3/S series machines, just with different belt lengths.