The wheel is spun with a continuous 9 gram servo, magnets and a hall detector are using to know what position the wheel is in.
Video of how it spins:
https://youtube.com/shorts/dA-JnDjX0dk
First film tests of my rig to automatically take trichromes in under 1.1 seconds, fast enough it can even be used hand held. It can also go slower for better control over spacing of the Harris shutter effect.
Video of how it spins: https://youtu.be/dA-JnDjX0dk?is=P2OMghE6rtddT0le
Printer on the left has been my main printer for ~12 years, it’s still functional, but has been showing its age, now it has been demoted to secondary printer.