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Problem removing parts from heatblock  

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xtiger
(@xtiger)
Active Member
Problem removing parts from heatblock

I'trying to fix an issue with my heaterblock threads. I want to remove all parts from the heaterblock. However i can't unscrew the screws from the thermistor or the heater. I think they are glued with petg. I also can't unscrew the heatbreaker. Any ideas? Should I try heating the block with a heatgun? A heatblock replacement is ordered, however it would be cool if i don't have to repalcee the thermistor, heater and heatbreaker too.

Posted : 23/06/2022 4:17 pm
fuchsr
(@fuchsr)
Noble Member
RE: Problem removing parts from heatblock

Definitely try the heatgun. Nothing to lose.  I have found myself in (thankfully rare) situations where I had stripped the tiny screws and ended up replacing the whole hotend. 

Posted : 23/06/2022 6:08 pm
hawai
(@hawai)
Estimable Member
RE: Problem removing parts from heatblock

The other option is to soak the heater block in ethyl acetate (decent solvent for PETG and is the main ingredient of acetone free nail polish removers, so should be readily available at your local supermarket). With a bit of luck it wicks into the threads and the grub screw should come out without "rounding" the Allen heads.

Posted : 24/06/2022 5:10 am
xtiger
(@xtiger)
Active Member
Topic starter answered:
RE: Problem removing parts from heatblock

Thanks for the advices. I was able to remove the heatbreak after applying a heatgun for some time. Thats all i needed to fix my other issue.

Posted : 24/06/2022 10:21 am
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