About this 3D model

This is a voltmeter / Battery tester! With the hole on the rights side, you can directly insert a 9V Battery. I've a Youtube Video about this 2 in 1 Voltmeter: Necessary materials: - 2 parts made with 3D Printer - Panel meter: https://www.gotron.be/paneel-voltmeter-4-5v-30vdc.html - 9V battery connection - Crocodile clips - Copper wire