Summary

The top part is slightly higher to give room to the cooling ribs.
The bottom part is extended with an antenna holder and 4 mounting holes

Print Settings

Printer Brand:

XYZprinting

                                            <p class="detail-setting printer"><strong>Printer: </strong>                     <div><p>da Vinci Jr. 1.0 Pro</p></div></p>                                                                                <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>

How I Designed This

Using OpenScad

I made a projection of a slice of the top that has been inserted in the mids of the top,
I created the mounting cross
I created the antenna holder

Orange Pi Zero 3 Snap Case with cooler ribs