A half-printed case rests on top of a circuit board. It looks like a technology sandwich.
https://social-coop-media.ams3.cdn.digitaloceanspaces.com/media_attachments/files/110/554/724/512/907/114/original/cf6f464d21423234.jpeg
Classic design error!
I forgot that I needed to mirror my design, since this would need to flip around to hold the Open Book.
Luckily I discovered the error mid print. I was able to take what had already been produced and test the size of the opening. It was a "perfect" fit, but in my design I have decided to add an optional battery case cover, so I've expanded the hole a little more.
Attempt, learn, iterate. :)
What *did* print looks pretty darn good, I have to say.
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