Subscribed! Cant wait to see it progress...
Looking at doing one using a 1" or 2" linear actuator next year. Aftermarket coolant fan switch from Summit Racing that uses probe stuck into radiator fins to fire time limted relays etc.
Grill Shutters, at their most basic, are merely rectangular butterfly valves, stacked (I know, obvious).
Your design lends this basic design concept to whatever sized needed. I think store bought air registers are more trouble and fiddly. Love the simple, large, modular, removeable design you got there.
As long as I can pivot some rectangular shapes around an axis, I can build grill block shutters, assuming wife has no other plans for the honey do list...
Great CAD images BTW.
