UM2 nozzle no longer positioned correctly

[3devos 1]

I ran up against a clogged nozzle last night while printing with standard PLA. Did 2 Atomic method pulls to clean out any crud. This seemed to work well and I didn't think there was any excess resistance while doing the pulls.

When I looked at the nozzle afterwards, I noticed it had moved upwards into the housing about a half centimeter or so. As well, the isolator and teflon coupler have also moved upwards by the same amount.

Is there an easy way to get this components seated back to their correct position, or am I going to need to take the printer head apart in order to fix things?

Thanks in advance for any input!

[IRobertI 432]

Just grab the nozzle (while cold, obviously ) and jiggle it around, it usually slips back down into position without too much effort. Sometimes it helps to push it upwards first.

[neotko 1,362]

Can you post photos? 5mm it's a lot

[3devos 1]

Can you post photos? 5mm it's a lot

 

I can in a few hours - I'm at work at the moment and my estimate was made from my memory which is suspect at best

[IRobertI 432]

It's very possible it was 5mm, I've managed to do that myself, many times.

[3devos 1]

[/media-thumb]

Can you post photos? 5mm it's a lot

 

Here are a couple pics of the parts. I haven't measured the actual gap yet.

[neotko 1,362]

It totally looks like the fat part of the steel coupler it's on the top of the aluminium bottom part. Shake it like you mean it like @IRobertI says.

Edited July 30, 2016 by Guest

[3devos 1]

It totally looks like the fat part of the steel coupler it's on the top of the aluminium bottom part. Shake it like you mean it like @IRobertI says.

 

Here another view - I will give it another shake... It didn't budge after my first attempt.

[neotko 1,362]

You might need to do an atomic clean before. Probably the inside filament it's keeping all on that position.

[IRobertI 432]

It's usually the set screw that holds the heater and pt100 in place that gets caught up in its hole. It might be easier if you remove the fan shroud so you can get a good grip, it's just four screws, two on each side.

[3devos 1]

It's usually the set screw that holds the heater and pt100 in place that gets caught up in its hole. It might be easier if you remove the fan shroud so you can get a good grip, it's just four screws, two on each side.

Ok - I'll give that a go. Thanks guys!

 

[3devos 1]

Success! It turns out that the issue was likely not caused by the Atomic pull but rather may ham-handedness. Once the fan shroud was off I noticed that the nozzle seemed to be pushing against the opening through the housing and the heat sensor and heater cartridge cables were very taught... as soon as I gave those cables some slack, the spring around the coupler snapped everything back into place.

Thanks again for the help!