Good job! The camera looks well thought out.
My past pinhole efforts have been centered around Worldwide Pinhole Photography Day in April each year. So far,
I've gone high tech, using a regular camera with a special lensboard or body cap for good solid film handling. But having done that a few times now, I was already thinking of building an "engineered" design from from scratch, as you've done nicely here. Or maybe even going really low tech -- back to the traditional cans, cookie tins or whatever. I have liked the ability to go out on the road and take multiple shots without a darkroom or changing bag, but I suppose I don't need to do a "road trip" every year.
Now and then it's a fun change from using novelties like lenses.
Keep up the good work!
DaveT