• uploaded a video for the Hackaday Prize 2019.
• made a pitch which is more suited for business case minded people
•  still waiting for the delivery of new NBC3111 mirror motors as I have broken mine. The new setup "works" but is not practical without these mirror motors. The prism makes much more noise and can converge into two modes. As a result, the prism has to be restarted 50 percent of the time. The noise reduces at lower speed but the two modes remain. This was not the case with the NBC3111 which had a flawless operation at higher speeds. I have therefore decided to focus on balancing the prisms for now and waiting for the NBC3111. The new motors should arrive somewhere next week.
  The current plan for the prism balancing setup is that I will use a MMA8452Q to read out the acceleration. The position of the prism is monitored using a marker and a stroboscopic camera.

Additional claims;

I also claim the use of prism in the industry of thermal plate setters.
Another patent by Apple has been revealed for scanning mirrors, see display device US2019/0285897A1. I also claim this patent but than for the case of scanning prism.