Hey @Cybercat I go into a decent level of detail on this thread. Rare Earth Magnets and 3M Velcro strips were used. If you scroll up you’ll find detailed photos and write up.
For everyone else who has been watching this thread for specific material list and some crude measurements, you can find some of that below. Measurements should follow if we can find the piece of paper where we wrote 'em down.
Most of the material for screens:
Magnets on truck:
Magnets sewn into screen:
