3D Model For Morse Code Iambic Paddles

I have a great paddle key for home but I didnt want to trust it lasting long while mobile / portable / camping etc etc. So I did up the following. It has worked out quite well and I made 20 contacts the first day it was constructed.

Pictured below is the knee brace bottom which allows you to easily attach the paddles to your leg, but I have a normal bottom model done up as well (see the STL zip file)

I played around with a few designs to get the paddles to return to normal but it turns out the simplest solution was a pen spring. I made a little notch that the spring recessed into. To keep it in place in case you bang it hard you can add a drop of crazy glue to the indentation.

Download the design HERE