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[Q] Sponge on filament

Posted: Tue Sep 22, 2020 8:02 pm
by StarLog
So I have seen several projects where it appears to have a sponge with the filament passing thru it.
Is this to moisten the filament or clean it.

Is it required or suggested.?

Thanks

Re: [Q] Sponge on filament

Posted: Tue Oct 20, 2020 12:36 pm
by vidalowell
I’m also curious about this