TUTORIAL - How to make freewheel pedals on trike - How to build ?

Hi there! You can call me Pablo. Just like any of you, I've had problems with pedals. I simply couldn't face life with a trike and no pedals. So, I had to give my brain cells a good going-over to avoid paying € 200 for the gadget they sell over the Internet (wheel with freewheel pedals).
I hope everything was crystal clear and that I haven't forgotten anything, so that you can be equally successful.
If you have any suggestion or anything at all to say about what I've done, feel free to do it. IN ME, YOU'LL FIND AN ATTENTIVE LISTENER!
Also, if you like to watch a filmed report on how I do make the trikes, drop a line and let me know.
Kindest regards, my fellow trikers.
Video tutorial of piece idea • Tutorial breve de "la ...