Ender 3 (Pro, V2) filament sensor for dual gear extruder (now version 2)
prusaprinters
No need for support, simple switch with roller and optional socket (wire could directly be soldered to switch). How to wire and stuff is showed in this guys video:https://www.youtube.com/watch?v=2l7c3A6_eT4&list=PL4uOUQa48Sii1aqiq2XS3fQ5Gb0aNpIxP&index=8&t=200sI built marlin for myself for my purpose, so it is not tested.Version 1 have a few minor flaws:when pushing filament out, the filament sometimes comes out from the sidebowden tube is not secure enough and this is the only place I am not reluctant to use simple couplers :DSupports only needed for couple part :)
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