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Are YOU using a filament filter?!

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Just throwing up a quick post for any of you new UM users who have asked yourself,

"Do I really need to use a filament filter?"

This is before - Brand new foam



This is after 2 DAYS of use! And it's dirtier than the photo shows!


So yeah, do yourself a favor, go to the craft store or order some foam online and USE it. Can you imagine how much dust you'd be pumping through your poor extruder over the course of a year without a filter?

*I do not print in a hermetically sealed environment. I print in a normal room :p


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I should, but I'm lazy... I even designed a dust filter thingy that I never use :p


I'm using your design all the time Robert, works like a charm!

When I change a spool, I switch it from the old spool right onto the new one.

Especially with PET which attract dust a little more then regular PLA..


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