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Hotend assembly - pre-tightened from Prusa?  

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loadinglevelone
(@loadinglevelone)
Trusted Member
Hotend assembly - pre-tightened from Prusa?

Hi,

When bying the complete hotend assembly replacement from Prusa, is the nozzle/heatbreak on this already correctly tightened or do I need to heat up the nozzle and tighten it.

My guess is not - I believe this is the same assembly you get with a new prusa Mk3s+ kit, and the assembly instructions for that kit does not mention any heatup-tightening of nozzle. So, do they preheat and tighten to torque at the Prusa factory?

My printers: Mk3s / Mk3s clone with +upgrdaes (you know SPinda and all that good stuff) / Mini+ / Ender 3 v2...
Posted : 14/10/2021 7:23 pm
cwbullet
(@cwbullet)
Illustrious Member
Good question

I am not 100% certain, but I have always tried to tighten it and it was already tight for me.  

--------------------
Chuck H
3D Printer Review Blog...
Posted : 15/10/2021 6:25 pm
Chicago Keri
(@chicago-keri)
Trusted Member
Better safe than sorry!

Considering the hassle a loose E3D hotend cleanup causes, it's probably best to check it hot.

Am really glad I switched to a Mosquito, as I often switch nozzle sizes.

 

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Posted : 16/10/2021 3:44 am
cwbullet
(@cwbullet)
Illustrious Member
nightmare

I have to agree with always checking.  I still do event though I have never had to tighten.  The clean ups are a nightmare.  

Posted by: @chicago-keri

Considering the hassle a loose E3D hotend cleanup causes, it's probably best to check it hot.

Am really glad I switched to a Mosquito, as I often switch nozzle sizes.

 

 

--------------------
Chuck H
3D Printer Review Blog...
Posted : 16/10/2021 10:49 am
loadinglevelone
(@loadinglevelone)
Trusted Member
Topic starter answered:
True...but...

I agree. But then why do Prusa not mention this in the assembly manual for new printers?

Posted by: @cwbullet

I have to agree with always checking.  I still do event though I have never had to tighten.  The clean ups are a nightmare.

 

My printers: Mk3s / Mk3s clone with +upgrdaes (you know SPinda and all that good stuff) / Mini+ / Ender 3 v2...
Posted : 16/10/2021 11:31 am
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