Issue unloading ASA Filament - tip is manteled with filament
 
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Issue unloading ASA Filament - tip is manteled with filament  

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Jagawams
(@jagawams)
Active Member
Issue unloading ASA Filament - tip is manteled with filament

Hi, 

I have an issue with stuck ASA filament tips when unloading after a print. There is a mantle of filament around the tip (see picture)

I tried hotend temperatures from 220 to 250°C - does not make any difference. The Picture is the 220°C print.

PLA and PETG work fine.

Does anyone has a tipp?

Thanks

Posted : 26/05/2021 8:00 pm
WizardUli
(@wizarduli)
Active Member
RE: Issue unloading ASA Filament - tip is manteled with filament

Same here. Sometimes it is so hard to get it from PTFE tubes that I need to wrap the filament around my hand and brace when pulling it out. No surprise that MMU2 can't pull it out.
I print with various high temperature filaments like ABS and PCTG and I've never had a problem with any of them except ASA with which I have this problem on roughly every third unload..... so multi-material printing with ASA is practically impossible.

Posted : 26/07/2022 9:34 am
jsw
 jsw
(@jsw)
Famed Member
RE: Issue unloading ASA Filament - tip is manteled with filament

There was some talk a while back about some PTFE tubing being small, as in out of spec small in the lumen.  It might be worth checking into this.

Posted : 26/07/2022 10:25 am
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