Printed another copy in the new slicer Creality 5.1.4. The gap between the central insert of the case and the case was divided in a simpler way with the new settings than the first time when printing on earlier models and slicer settings. It was necessary to press hard to the sides, spreading the "lips" of the case with your fingers or a wide screwdriver, but I also had to trim a little in the gap with a knife. The printed model works great. Thanks again.