Anycubic Kossel Flying Extruder
thingiverse
This is remix from 2 things: https://www.thingiverse.com/thing:1499900 https://www.thingiverse.com/thing:2780091 Combining both idea, I make a flying extruder using M3 and spring, it is easy to find M3 bolt and springs for 3d printers. Spring has good stretch compared with the tube, allowing arms move easier.
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