I wanted a new case that didn't interfere with certain electronics and rather than buy a bunch and test them, I decided to design my own. This fits the iPhone 7+/8+.

There are no overhangs greater than 45° so no supports are needed.

Print instructions

I used Priline Carbon Filled Polycarbonate at .2mm and the print came out perfect. I recommend printing in something that can flex a little without breaking like PETG, Polycarb, or TPU. I have not tried this print in TPU so print at your own risk.

You may need to scale the model in the slicer. I wouldn't exceed 1% deviation. In other words the working size should be between 99%-101%.