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Issues with color change  

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N757JB
(@n757jb)
Active Member
Issues with color change

I always run into an issue when I change colors using Prusa Slicer. If I am at the printer shortly after it is ready for a color change, it is always hard to get the filament out of the printer and often a blockage is created. The only solution I have is to be at the printer right at the point it moves over for the color change or wait for the print head to cool down and then let it heat back up. Does anyone else experience this or have a solution?

Posted : 02/03/2023 4:29 pm
Diem
 Diem
(@diem)
Illustrious Member

What does the end of the old filament look like when you pull it out?

Cheerio,

Posted : 02/03/2023 5:47 pm
N757JB
(@n757jb)
Active Member
Topic starter answered:
RE: Issues with color change

Not sure I can really say accurately.. I have to forcibly pull it out until it snaps off so I usually just wait for it to cool down and then heat it back up and it comes right out.

Posted : 02/03/2023 6:46 pm
Diem
 Diem
(@diem)
Illustrious Member

So is it a blob, a wasp waisted blob or a long string..?

 

Cheerio,

Posted : 02/03/2023 7:16 pm
N757JB
(@n757jb)
Active Member
Topic starter answered:
RE: Issues with color change

When it gets stuck and i pull it off forcibly it is a sharp point.

Posted : 02/03/2023 7:21 pm
Diem
 Diem
(@diem)
Illustrious Member

Does that mean it was a wasp waisted blob before you pulled it?

Is this a new machine or one that has been running OK for a year or so?

Cheerio,

Posted : 02/03/2023 8:24 pm
N757JB
(@n757jb)
Active Member
Topic starter answered:
RE: Issues with color change

Yes.

Machine is about a year old. It has always been this way since i started playing with printing multi-colors

Posted : 02/03/2023 8:30 pm
Diem
 Diem
(@diem)
Illustrious Member

Take a look at this page, it's about the MMU but it might help you with your unloads...

https://help.prusa3d.com/article/mmu-loading-failed_2135

Cheerio,

Posted : 02/03/2023 8:31 pm
N757JB
(@n757jb)
Active Member
Topic starter answered:
RE: Issues with color change

This is not an MMU. I'm doing a manual color change based on creating a color change in Prusa Slicer.

Posted : 02/03/2023 8:41 pm
fuchsr
(@fuchsr)
Famed Member
RE: Issues with color change

Definitely doesn't sound normal. Does it try to eject the filament but it's stuck? Do you have a video of what's happening!?

Posted : 02/03/2023 9:11 pm
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