After the project has been 3D printed, the components placed and connected, it was time to power it up, and make sure it works, before sealing it shut.
Once the components are fitted into the toolbox and frame, wires can be measured to ensure a clean fit. The wires should not be tight, nor should there be too much slack that cables are coiled into a corner.
There isn’t much going into the project, and I’ve miniaturized it where possible. Mainly, instead of using an Arduino Uno, I’ll use the Arduino Pro Mini microcontroller. While not entirely necessary, I’m adding a buck converter between the power source and the microcontroller.