i3 mega pressure release
thingiverse
you can use this device to release the pressure of the gear wheel that presses against the filament, to easily remove or insert a filament. You also need: M5 x 40 mm screw M5 nut Here is a link to the video explanation: https://www.youtube.com/watch?v=wUBU59yxFQw&feature=youtu.be enjoy.
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