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Must print very hot (260c for PLA)  

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Tracy
(@tracy-2)
New Member
Must print very hot (260c for PLA)

I have a MK3S, and I have been having heat issues. I'm guessing something isn't registering quite accurately. I am using Prusa brand PLA. I have to get the not end up to about 250c to even load it, and it prints perfectly at a setting of 260c. I've tried multiple spools of PLA filament, always to similar results. I don't think the thermistor is bad because it holds temp consistently and always passes the temp calibration. 

Any thoughts or advice?

Posted : 19/05/2021 10:47 pm
cwbullet
(@cwbullet)
Member
RE: Must print very hot (260c for PLA)

I would say you have a partial clog.  Have you tried a cold pull?

--------------------
Chuck H
3D Printer Review Blog

Posted : 19/05/2021 11:51 pm
Tracy
(@tracy-2)
New Member
Topic starter answered:
RE: Must print very hot (260c for PLA)

@cwbullet

That could be the problem. I did a cold pull a couple of weeks ago, and it didn't seem to fix the problem. I'll give it another try. 

Posted : 20/05/2021 12:33 am
cwbullet
(@cwbullet)
Member
RE: Must print very hot (260c for PLA)

@tracy-2

Do a cold pull and post an image of the tip.  

--------------------
Chuck H
3D Printer Review Blog

Posted : 20/05/2021 1:53 am
Tracy
(@tracy-2)
New Member
Topic starter answered:
RE: Must print very hot (260c for PLA)

I did a cold pull last night, and I didn't think to save the tip, but there was some discoloration and uneven shape. You made a good call about the partial clog. It actually turned out to be pretty substantial. In the end I changed the nozzle because I couldn't get it all out. With the new nozzle, it's printing great at about 210c. Thank you for the help!

 

Posted : 20/05/2021 12:18 pm
cwbullet
(@cwbullet)
Member
RE: Must print very hot (260c for PLA)

@tracy-2

I am glad the posts have lead you to some success.  

--------------------
Chuck H
3D Printer Review Blog

Posted : 20/05/2021 3:44 pm
Tracy liked
tyboxer87
(@tyboxer87)
New Member
RE: Must print very hot (260c for PLA)

I had a similar issue with a clog on my Mini+. I cranked the temp up to 280 and shoved a bunch of filament through as fast as it would take it. Then did 4 or 5 cold pulls. Probably not the best way to do it but it worked for me.

Posted : 20/05/2021 4:34 pm
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