I’m seeing several threads on heat sinks and cases, so here’s my two pennies worth. Original heat sink and 3D printer not required.
The top was a plastic container that I received with AA batteries. By moving the WiFi antenna to a different position you could also mount a second fan.
With the fan powered from a 5V pin (it also works with 3.3V), Windows 10 idles at 37-38 C (Core max, as measured by HwInfo). With CPU-Z stress it goes to 54 C; if I add a small (300x500) Fur Mark GPU stress, it stabilizes at 75 C.
Now, if only I had a GPIO library to use the other GPIO pins…
