Print the top part upside down, textured sheet is recommended to achieve nicer surface .
Bottom cover is optional
0.2 or 0.3 layer, infill from 10-15%, use brim at least 6mm if you have problems with bed adhesion.
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.