About this 3D model
A blank, single part version of my OnePlus 6 phone case design. It's a nice tight fit, just be sure you have strong layer adhesion so it doesn't break so easily (it's only 1.6mm thick). I had success using XTC-3D epoxy over PLA. If you use ABS or another material that shrinks, you may need to scale up the model a tiny bit. Share results if you do!