A plate that holds a quiet 50 mm x 50 mm x 10 mm fan to cool the PI in the sBITx. This plate has sides on the plate that are meant to direct air from right side case vent through fan and out the top and the left side vent. The air flow may also help cool the RF section too.
Update got a fan, fits perfectly.
Designed in OpenSCAD.
Used with a modified top plate with a larger opening for better air flow and HDMI access.
https://www.printables.com/model/921224-sbitx-top-cover-plate
The author remixed this model.
remix for 50 mm x 50 mm x 10 mm fan.
Note - designed from specifications, not printed and tested.