Lỗ Luồn Dây Điện Âm Tường

My colleagues wanted to place their keyboards and mice above the desk, there was a need to make a hole in the wall for a cable duct covered with plasterboard. The hole should be secured with something. I chose 3D printing. I'm posting it, maybe it will be useful to someone. The hole was made with a 43 mm hole saw. In our case it fits just like a press, no need to glue it 😊.