An improved, ultra simple, filament run-out sensor

A perfect use for one of your filament remnants. It only takes about 7g of filament and a few minutes to print this.

[www.youmagine.com]

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Son of MegaMax 3D printer: [www.instructables.com]
Ultra MegaMax Dominator 3D printer: [drmrehorst.blogspot.com]