Thumb of Fate Extruder Indicator Dial

The gladiators of ancient Rome had their fate decided by a simple “thumbs up” or “thumbs down”

Now your 3D printer will now cast judgement over your prints.
As filament passes through, the thumb of fate will turn and where it stops only your printer will know.

Designed to fit a Nema 17 motor with 5mm diameter shaft.

Just for fun, but also useful to see the motor is not skipping and retraction is working.

Print it face up with support. Should be a tight fit, but if too tight ream o