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Today I started my Arduino DIY Security System for my workshop and made the 3dprinted enclosure for the PIR sensor (I bought 3 sensors for 7.99 € on Amazon, you can find the link here). It consist in four 3D printed parts: two of them are the PIR sensor enclosure itself and the other two are the adjustable wall mount system. If you’d like to use my models and print out your version you can find the .stl files on my Thingiverse account by clicking here.

It took me 15 min to design them and 2 and half hours to print them out with a black PLA PLUS from Sunlu (I bought it on Amazon, you can find the link here. The results are amazing: perfect fit of the sensor in the enclosure and 220° of rotation available for its adjustment.

The thing I like the most of this design is that it is so small that you’ll hardly be able to notice it if you print it in white for example.

Once the parts are printed out you’ll just need to use an M5x18 screw with hex socket head with its M5 nut that will be inserted in the hexagonal slot of the top part. You will also need to glue up the top part with the adjustment device and you’ll be good to go: I personally like the hot glue gun because its fast, strong and I like to use it also to secure the wires and the soldering works. In this case, once the soldering will be finished and the wires are out of the case, I will put a good amount of hot glue in the back hole of the housing to ensure nothing enters in and the wires stay put.

For today that is pretty much all. I hope this will be useful for you as well.

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Stay tuned.

Cheers

Max