Print with PETG or other material that is more temperature resistant, at least for the Top piece, since it is hit by the fan exhaust.
In the slicer (Cura), I set Top/Bottom Layers to 0, Infill Multiplier to 2, and Extra Walls to 2. Should let the fan breathe without issue.
4x M3 heatset inserts.
4x M3 x 18-24mm long screws
Rubber feet from Home Depot
This is for the used Datto ALTO 3 V2 that I sell. Should work with ASUS Beebox or Intel NUCs with similar hole pattern and layout.
The author remixed this model.
Split the Bottom into Body and Bottom.
Added mounting for SSD.
Added position for m.2 A+E to Ethernet Adapter (Confirmed RTL8125B module works)