I designed a harness for a USB cable with an on/off switch. When I stacked my AMS units, it didn't take long for me to see the need for light in the lower section in order to clearly identify those darker filament types in the lower AMS. I used a strip light I already had and ran a USB cord I got from Amazon that had a built in on/off switch. The only problem was the weight of the cord would slowly pull the light strip off its surface. Hence the design.

I designed this large enough to fit a variety of switches (different shapes and sizes). The unit itself is 125mm long and 20mm wide. The cord openings are 4mm across and should accommodate most basic household cords. The screw holes are 8mm in diameter at the opening beveled down to a 4mm shaft for the screw. I also printed in .08 layer lines to help with the arch portion of the harness.

The on/off switch I purchased can be found here:

[https://amzn.to/4jY51GD](https://amzn.to/4jY51GD)

I purchased the 10' cable for my needs but they do have a variety of lengths.

I hope this helps you organize! Happy printing!