So far the new water pump has been working great. I decided to add a water level cutoff switch.
I used a two step switch so I would get a warning before the laser gets disabled.
I wanted to mount it to the lid so I 3D printed a stalk to hold it at the right height
With the extra wires I was going to need a bigger junction box but instead I just 3D printed a bubble top form the existing box.
First I thought about an aviation style connector…
Then Im settled on an RJ45 so I could use a common network jumper cable
I used half a coupler.
Just crimped on some pins to get it connected.
It fit pretty well since the coupler has a slight taper. A little glue will make it permanent
And a matching end for the controller.
Plus a few extra parts……