Mostly because I was bored and for self-educational purpose I desigend a custom fan hat for the Nanopi R4S.

Planned to mill it from 2mm aluminum.

 

As reference I created a heavily simplified version of the board (4GB version) using the provided 2D drawing from Friendlyarm.

 

Fan: https://www.amazon.de/dp/B071JN6HKM?ref=ppx_pop_mob_ap_share

Heat sink: https://www.aliexpress.com/i/4000107291369.html

Bolts and nuts: Whatever fits... M2

 

 

Baugr1.mkv

Slight modifications mostly for optical satisfaction.

 

Whoever wants to give it a shot, either milled or printed, I attached the current DXF.

 

(btw. gross in German means big. The reason is that initially I started with a smaller version utilizing the smaller holes on the PCB. Though at least for me I could not find a proper source for bolts and nuts so small I gone ahead and used the bigger holes for screws up to M2 and maybe even M2.5 with a bit of squeezing. I included the smaller holes anyways so it is easier to simply remove the extended part.)

 

The cheapest commercial way to make this things realitiy I could find was https://www.schaeffer-ag.de/

They can mill it professionally from aluminum or acryl glass for close to 30€ including tax and shipping in Germany.

 

r4s_gross.DXF