Low amperage PCB switch for robotics

The switch is finally done. the larger 4-40 screw works much better. It is available now at my website and the link is in the description.

I received the new boards they are much better. I will be adding photos and video soon. After a bit of testing if all goes well I will be offering these for sale.

The board works quite well but I am not 100% happy with it yet. I have decided to increase the amount of contact area of the screw head by increasing the size of the switch screw to 4-40 from 2-56. I just ordered a set of boards and they should be here in a week or two.

I finally got around to testing out my switch. It works quite well on my test platform for my dual motor driver speed controller I am developing. So far I have only drawn ~1 amp through it but it should be capable of much more. It is definitely suitable for most antweight (1lb) and under robots and I expect further testing to reveal it will work for beetleweights (3lb) as well.

I need to come up with a accurate and repeatable way to test these. I am thinking about attaching them to a variable load like a brushless motor and a watt meter. Then I can measure how much current they can pull as well as how hot they get (my watt meter has a temp sensor built in)

I ordered the PCB, and parts from Mcmaster Carr

should have everything in about two weeks to test .