Ventilated Cover for Raspberry Pi 4B HighPi Case

Here we have a replacement cover for the HighPi Raspberry Pi 4B case sold by pishop.us as SKU 9005 for $10.  The original case cover is replaced with this one to have ventilation holes.  The cover snaps into place so a strong, flexible filament like PETG is recommended.  To further address heat issues without adding a fan, I have combined this cover with the use of stick-on aluminum heatsinks.

My only fabrication experience has been using PETG with the Prusa slicer using default Quality settings for 0.2mm layer thickness.