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Soluble Filament problem and MMU2  

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scorpio
(@scorpio)
Active Member
Soluble Filament problem and MMU2

Hi,

sorry for my English

I just made my first try with the soluble filament. Impression always nickel. What worries me is that once the impression is over, I put it under water to remove the soluble filament and all my impressions come off.

I wonder if the soluble does not know mixed with the pla.

Can you help me?

if the purge is poorly done, I used the default settings.

what purge setting do you use?

Thank you everyone.

Posted : 02/03/2019 7:26 pm
RetireeJay
(@retireejay)
Reputable Member
Re: Soluble Filament problem and MMU2

Just to help readers of this post... I do have some knowledge of French (Patrice also posted this same question in his native French). I looked up "nickel" in my "Petit Robert", a French dictionary (not French-English, but pure French), and I believe that Patrice is saying that his print looked "perfect" before he rinsed it under water.

I'm not exactly sure what he meant by all the "impressions" came off after washing, but I'm guessing that he means the entire print fell apart.

If that's the case, I guess his question is whether residue of soluble filament that remains in the extruder while printing PLA could interfere with proper adhesion of PLA to itself. Does anyone have experience printing PLA with soluble support? (I don't.)

My first question to Patrice is to ask whether he has been able to make good PLA prints without the soluble filament? If his process is not tuned up correctly, or the PLA that he's using is defective, maybe it was going to fail with or without soluble support.

Patrice, if you could post a photo of your failed print, that might be very helpful.

Posted : 02/03/2019 8:15 pm
scorpio
(@scorpio)
Active Member
Topic starter answered:
Re: Soluble Filament problem and MMU2

thank you Retireejay for your correct translation of my english.

Indeed my print are perfect with the mk3 (PLA and PETG).
here is a picture of the result with soluble filament (BVOH).

Posted : 02/03/2019 8:51 pm
Peter L
(@peter-l)
Honorable Member
Re: Soluble Filament problem and MMU2

I don't think the default purge settings are sufficient to remove all the soluble filament--it's really designed for clean color changes.

I would try doubling the purge when going from soluble to non-soluble and see if that helps.

Posted : 03/03/2019 4:46 pm
toaf
 toaf
(@toaf)
Noble Member
Re: Soluble Filament problem and MMU2

I have even had to triple purge to try to keep it from mixing. it is rough to dial it in.

I have a Prusa,therefore I research.

Posted : 03/03/2019 5:15 pm
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