Simple multi-color tractor with ESP32 Mini, active buzzer and LEDs (for beginners)

I created this model after I was presented with Anycubic Kobra S1 on my anniversary and was straggling with what to make using this beautiful device. I used Tinkercad and my basic DIY experience in electronics and SOC programming to integrate it with a voice assistant, show to my children and say thank you for the great present. The model is extremely simple in printing but is very nicely decorating the room of one of my kids. Why Tractor? No explanation, just an occasional idea coming during one of our family evenings. Not sure it will be useful to anybody - but just in case.

I used 5mm brass inserts for wheels connection (a lot of different types are available on Amazon) and M4 12mm screws (wheels are not rotatable, the model is just for standing purposes). The screws were painted with a black permanent marker after mounting for a better appearance. 

The parts are to be glued with a super glue - nothing specific is required. The cabin is actually fitting the body safely without a glue required at all. Four washers are required (for each wheel) - washers are available on the wheels STL.

Supports are not required, the winch is best printed when split into two parts and glued (print two pieces to glue them after). I rotated thread to the winch for a more natural looking.

ESP32 mini with USB Type C was used to be mounted directly into the bottom space without a glue or screws - it requires a small push to securely fit into the space designed for it. I connected 6 LEDs (5mm for front lights and 3mm for others) and an active buzzer to enable some simple operations (like lights flashing and beep).