Notifications
Clear all

[Solved] Tried a Cold Pull, still having issues  

  RSS
BluesTraveller
(@bluestraveller)
Active Member
Tried a Cold Pull, still having issues

I tried the cold pull three times but I think it is still jammed or is this a idle screw or z-axis issue?

Best Answer by Diem:

That looks like damp filament.

On page: https://help.prusa3d.com/en/article/pvb_196708

It says:

PVB is very prone to absorbing moisture. Always put the spool back inside the bag with silica gel or let it dry for 4 hours at 60 °C before printing!

Cheerio,

Posted : 07/11/2021 3:15 pm
cwbullet
(@cwbullet)
Member
RE: Tried a Cold Pull, still having issues

It could be both.  What filament are you using?

I would go back to a Z of zero and try again.  If it still jams, try adjusting your tension screw.  

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

Posted : 07/11/2021 3:23 pm
BluesTraveller
(@bluestraveller)
Active Member
Topic starter answered:
RE: Tried a Cold Pull, still having issues

PVB filament.

Thank you for the reply.

Posted : 07/11/2021 3:27 pm
cwbullet
(@cwbullet)
Member
RE:

Honestly, I have a sample and have not used that filament.  This image above looks like it might be underextruding or damp.  

Posted by: @bluestraveller

PVB filament.

Thank you for the reply.

 

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

Posted : 07/11/2021 3:58 pm
BluesTraveller
(@bluestraveller)
Active Member
Topic starter answered:
RE: Tried a Cold Pull, still having issues

Damp as in the humidity around the printer is too humid?

Posted : 07/11/2021 4:18 pm
Zoltan
(@zoltan)
Member Moderator
RE:

Is it your first print? 

Can you please describe your issue according to this? https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/we-want-to-help-you-you-have-to-tell-us/

even an old man can learn new things 🙂
Standard I3 mk3s, MMU2S, Prusa Enclosure, Fusion 360, PrusaSlicer, Windows 10
PRUSA MINI+ Prusalink + Prusa Connect

Posted : 07/11/2021 5:06 pm
BluesTraveller
(@bluestraveller)
Active Member
Topic starter answered:
RE: Tried a Cold Pull, still having issues

Hi, 

Thanks for the reply.

No, it is not my first print. 

Printer: i3 MK3 which I bought fully assembled.

Printer setup: 215/75 standard setup. 

Slicer: I use the Prusa slicer but have not attempted a new print since I cannot get a good 1st layer calibration.

Filament: Clear PVB, new Black PLA filament will arrive tomorrow.

Issue started when I walked away during my last print and the filament got too much slack in it and it tied itself in a knot and prevented it from feeding into the extruder. I tried the cold pull three times before re-running the calibration wizard. I got to the 1st layer calibration and the picture in the original post is what I see happen now.

Posted : 07/11/2021 5:18 pm
Diem
 Diem
(@diem)
Illustrious Member
.

That looks like damp filament.

On page: https://help.prusa3d.com/en/article/pvb_196708

It says:

PVB is very prone to absorbing moisture. Always put the spool back inside the bag with silica gel or let it dry for 4 hours at 60 °C before printing!

Cheerio,

Posted : 07/11/2021 7:51 pm
BluesTraveller
(@bluestraveller)
Active Member
Topic starter answered:
RE: Tried a Cold Pull, still having issues

Thank you, you were correct. Got new PLA spool and it is printing just fine again.

Posted : 08/11/2021 11:42 pm
Share: