So far, I have a basic logic switch implemented. This works by looking at the switch and pressing 'E' or the key you have bound for interaction to toggle the switch on or off.
[Edit]
Got adjustable range for solar panels, generators and reactor turbines working.
This should make machine connections much easier early in the game.
As you can see in the image below, solar panels can be directly attached to the machine.
I also added 4000 iron blocks to the lunar lander for building platforms like this.
I will hopefully have this update ready soon. This will be version 1.2.5.