First I printed the Stratux Nano Dual SDR Case by Mistertech. (love the layout and concept of the case!)
Personally I missed a fan because the temperature in no-time raised above 70 degrees celcius, and also wanted a bit more space at the antenna cables.
So I used Siemens NX to re-draw Mistertech's design.
This case is a little bit higher to gain a bit more clearance for the fan, which is attached to the cover of the case.
Also I had a lacking and disturbed GPS signal, that's why I created a hole in the top shell (within the Stratux logo) right above the internal GPS unit.
To diminish the chance of magnetically disturbance from the LAN connector and Radio high gain antenna’s I have drawn an GPS shield, which I have covered up with copper tape, this is connected to by wire to one of the ground pins.
For the top of the case I tried “3DLAC spray adhesive” on the bedplate of the Ultimaker 3. Unfortunately I used a bit too much causing the top to look a bit dirty. So be gentle with it. ;)
But It prevented the edges from bending/warping.
When you don’t have or want to use the glue spray, you can also try to decrease the bedplate temp by +/-10 degrees Celsius.
I used the same screws as Mistertech has used in his design:
2.5x8mm For the top of the case
2.5x4mm for the Motherboard.
My Stratux setup:
Raspberry Pi 3 Motherboard.
Pre-programmed SD card with Stratux software.
Stratux 1090ES & UAT - Radios and High Gain Antennas.
Stratux GPYes u-blox 7 GPS unit
Stratux AHRS Sensors and Fan Controller / Raspberry Pi MPU9250+BMP280.
Before i forget, the rivets are rubbish! I did not had any time to make a better design for it. so I would not recommend to use them. but if you use somehing to widen the gap it will hold the fan in place.
Please let me know what you think of it! (except of the poor rivet design ofcourse ;) )