Filament Guide, optional Tension and Jam Control
cults3d
A little addon for the Creality CR10, Ender 3 and all printers with similar design. Here you can add 2 microswitches which controls tension and out of filament. Also without the switches this tools is very helpful. The knob on top of the roll has a bajonet and so you can easily remove the roll for filament changes. What you need, is a spring for the arm (you can see it on the pics). This can be any spring (i.e. a ballpoint spring).
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