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Ways to damage a heatbreak... please help  

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Kopplog
(@kopplog)
Trusted Member
Ways to damage a heatbreak... please help

Hello, 

I haven't achieved to get any help so far - I have problems with my 3ED V6 Hotend.

I reassembled it 6 full times in a row of pure frustration. First I had multiple leakages, now I added some more force screwing things together but other problems occurred (old thread here)

I always put the parts - nozzle, heatbreak, etc... on my hotplate to burn things off. 

Maybe I ruined the heatbreak?

 

Somebody's helping?? 

Posted : 25/11/2021 7:07 pm
Kopplog
(@kopplog)
Trusted Member
Topic starter answered:
RE: Ways to damage a heatbreak... please help

So, I can't ruin the heatbreak by heating on the heat plate, very well.

 

Posted : 26/11/2021 12:09 pm
Xanthe
(@xanthe)
Trusted Member
RE: Ways to damage a heatbreak... please help

It's certainly possible to easily damage the mating surface on the top of the nozzle, and that will ensure leaks!

Putting it on a hotplate... what do you mean by a hotplate?

Heating  most plastics above their decomposition temperature (about 280°C for PL, to about 450°C for PC) for an extended time will usually result in carbon rich deposits.  Removing these using just heat and oxygen from the air typically needs >>600°c for many hours.  If you have deposits on the mating surface of the heatbreak, then that could prevent an adequate seal.

Posted : 26/11/2021 12:10 pm
Kopplog
(@kopplog)
Trusted Member
Topic starter answered:
RE: Ways to damage a heatbreak... please help

Putting it on a hotplate... what do you mean by a hotplate?

I usually break the hotend to pieces and put the oozed parts on the hot plate, while I sucking up the fume. 

Posted : 26/11/2021 12:17 pm
Kopplog
(@kopplog)
Trusted Member
Topic starter answered:
RE: Ways to damage a heatbreak... please help

I looked up:

A hotplate like this shouldn't have over 400 C max.... and I haven't had heatened up to the max. 

Posted : 26/11/2021 12:32 pm
Kopplog
(@kopplog)
Trusted Member
Topic starter answered:
RE: Ways to damage a heatbreak... please help

Okay,

my Hotend seems to work again. So:

I'll give a green tllight to my approach. Highly recommended, after cleaning cloaked nozzles etc are a piece of cake cleaning...

Bye

Posted : 26/11/2021 4:41 pm
Kopplog
(@kopplog)
Trusted Member
Topic starter answered:
RE: Ways to damage a heatbreak... please help

Again, I run out of time for editing my faulty language... 

Okay, hope you got the idea! 

 

 

PS... timed out editing sucks too hard!!! 

Posted : 26/11/2021 4:51 pm
Dan Rogers
(@dan-rogers)
Noble Member
Yikes. Good luck with that.

I'd be worried about heat cracks and the fire risk of using that heat plate like that.  Happy printing.

Posted : 27/11/2021 10:22 am
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