A simple protective case for the SCD41 CO2 sensor board. It is also suitable for the SCD40 sensor board. There are two options: with and without a screw mount. The wire braid diameter is up to 4mm. To assemble, simply snap the lid onto the case. 
The sensor board fits into the small slots at the bottom of the case. Push it all the way in. If the SCD board does not fit or is too loose, adjust the Z scale to +-0.1 .. 0.2mm. The slots are too small to fit supports during printing, but I was able to print and fix the board without them.