Filament Roller Guide ender - with filament sensor (include .step)
thingiverse
This is my remix of Ender 3 Filament Roller Guide by Holspeed. It has an button inside, so it works as a filament runout sensor. You will need only some screws (M4, M2) and 608 bearing. If you haven't 608 bearing, you can print this: https://www.thingiverse.com/thing:4628063 Loading and unloading filaments works pretty well after bend the button (see pictures) and is comfortable in my opinion. I have no problem with reliability, haven't found any issue.
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