cardboard spool dissposable air filter
thingiverse
I made up a filter out of a normal spool, but since everyone is switching to the cardboard spools , I have switched over to a disposable air filter that's glued together , witch offers better filtration due to a better seal around the filter material . needs : 1 80mm fan , powered however you like . 2-4pc m3 screws to mount fan. 1 or more spools filter material ( I got mine from walmart) hot glue drill, or way to poke holes in the inner ring of the spool . https://youtu.be/JprBvzzX6xw
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