OpenSCAD project for a cam and Raspberry Pi Mount to the top bar of the Anycubic Kobra Go Filament 3D Printer

This project is on Thingiverse.

This small project is meant to mount a Raspberry Pi 4B to the top of the Anycubic Kobra Go printer between the top bar and the filament holder.
You'll need to replace the two M4×6 fabric holding screws of the filament holder by M4×12 ones, if you want to keep the default filament holder in place.

Additionally, you'll need 4 M3×16 (for the fan ... you may need to adjust the size of those screws to your needs!) as well as 4 M3×20 for the housing. For those 8 screws, you also need some female screws (“Muttern” in German).

The project also has space for a small stripboard (2×7 dots) – which is used for fan control ... the additional information about that piece of hardware as well as the corresponding software / code will also be posted here – soon.

Holding the stripboard in place isn't designed that well in the current version – that will probably be improved in the future ...

I used an 4.7kΩ resistor and a NPN transistor of the BC547 type to make the following work.

As user root run pip install RPi.GPIO gpiozero loguru or simply run python -m pip install -r requirements.txt (as well as root user).

As user root place the code of the file fan-control.py at /usr/local/bin/fan-control and make it executable by chmod o+x /usr/local/bin/fan-control.

To run the service on every boot of the Pi, create the file /etc/systemd/system/fancontrol.service with the content of the file fancontrol.service out of this repository.

Don't forget to enable (systemctl enable test.service) and start (systemctl start test.service or simply reboot your Pi) your service!

You also can check the (current) logs by running systemctl status fancontrol.service.