Just need to make smaller the angle of the PIR detector, i didn't know how much exactly so i printed this to make some test.
4 parts in 1 print, don't need any assemble, it print at once.
If you have a good calibrated printer ... will be: print and enjoy.
If not you will need to break carefully the hinges to let it move freely
Put a comment or share a "i made one" help me keep uploading things.
print at 100 microns or less