Jo’s 5 minute installation video covers the basics of hardware, software, and testing, so start with that.
A key advantage of the Mini Gerbil controller is that it doesn’t require an external 24V supply, you can use the power supply already in your laser. If you have the K40 power supply type below (which wasn’t shown in the video) then please refer to the MG2 installation page which is similar to MG3 and should provide enough guidance.
The only other thing not spelled out in the installation video is that you’ll need a mini B USB cable.
If you have questions, the please email firstname.lastname@example.org Please include a photo of your installation wiring.