Filament transport indicator / NEMA Stepper Axis position indicator

This is a simple indicator dial that can be printed in under 10 minutes and fits on the motor shaft of my filament transport stepper. So you can see easily if the filament motor is working as expected and how fast it goes. Version 1 has a recessed indicator which works best when coloured. Dual extruder guys, feel free to add a second colour there :-)
Version 2 is shaped like an arrow head.
I suspect they should work with any vanilla NEMA motor on many other printer brands - please leave your e