Summary

Improvement of the original by Geeky Dad, STL was not a maniforld, and my slicer was not able to reproduce it, so I fixed it in Blender.
Sliced with CuraEngine.
STL, Blender and Gcode avaalble.

Print Settings

Printer:

Traonxy, Prusa replica

                                            <p class="detail-setting rafts"><strong>Rafts: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting supports"><strong>Supports: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting resolution"><strong>Resolution: </strong>                     <div><p>0.2mm</p></div></p>

Sleeved card holder