This is a short demo of the system we're using to maintain the mirror shape in real-time. The controller is based on a basic Arduino with some glue logic to interface the IR transmitter/detector sensor that we're using to detect the position of the mirror while it's under vacuum.
I wrote the graphing interface software using Delphi XE. It talks to the Arduino at 115200bps.
...
https://www.youtube.com/watch?v=q309MyEtc3A