clog nozzle(is that even possible with the new print core?)

[SonKim 1]

New to 3d printing and definitely new to Ultimaker, UM3 being my first Ultimaker. I think my AA print core nozzle is clog because little to no plastic is extruding when I try to print. Is there a video on unclog it or advice on how to unclog it? The nozzle getting clog result in some mid print failures , until it totally stop extruding any plastic.

I also read that the tension on the feeder can lead to a clog nozzle, how do you know if you have too much tension or too little? I see little tread marks on my filament they aren't deep but noticeable. How do you adjust the tension on the feeder?

[avluis 2]

In regards to unclogging the nozzles -- have you read the Ultimaker 3 online manual? Here is a portion on regards to cleaning.

And here is some info on maintaining the BB core, which parts of can apply to other cores as well.

Edited November 13, 2016 by Guest

[Zwakie 21]

When I got mine I had some issues with getting filament out the nozzle as well. In my case I was not aware the feeder was grinding to the point it could not feed the filament into the tube. Make sure yours is not grinding in the feeder.

[ultiarjan 1,223]

it usually helps to bend the filament end a bit more straight when you push it in.

[SonKim 1]

@avluis,  My nozzle on the outside is always clean, for whatever reason it is clog on the inside. Thanks for the link! I'll give it a try once I find some time(busy with a project for a client).

@Zwakie, how do you adjust the tension on the feeder? Mines seem to be okay, it's alot less grinding than the one in this photo:  https://d3v5bfco3dani2.cloudfront.net/photo/image/0x0/57ffa429dfe28/04%20PLA%20met%20tangetje%20vasthouden%20en%20in%20printkop%20duwen_3.jpg

@ultairjan, yes I did the first time I insert the 2 filaments that came with the printer, though the tension was too much it won't even go up the feeder.

Edited November 13, 2016 by Guest

[Zwakie 21]

@Zwakie, how do you adjust the tension on the feeder?

In the user manual on p. 37 you see a foto at the bottom. On this foto you can see a recessed 'lever' just above the big lever that released the feeder. With this recessed lever you can adjust the friction.

[korneel 176]

so the lever on the side can be adjusted by using the screwdriver that has been supplied with your UM3 on the top screw of the feeder. a good indication is having the tension in the middle.

[SonKim 1]

thanks for tip about the tension adjustment! reading more of the manual now. And I manage to get the nozzle unclog it was very easy Doing some new prints now.