About this 3D model

Xiaomi Mi Band 4 BB machine outer casing, print layer height 0.2, infill 15%. If the print is too tight, you can use a small knife to slightly shave the 4 positioning slots on the inner wall. In principle, you should be able to push it out by applying some force to the oval on the back. If you have any questions, please leave a comment and I will reply as soon as possible.