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Prior posts in the PiCasso Design Challenge: PiCasso Design Challenge - Kinetic Art Mobile - Post 1   I have received my challenger's kit early this week (Thank you so much for the cool toys!).  The first step in the journey was a brief proof of concept on the rotary joints that will make up the backbone of my mobile design. I had ordered some tiny slip rings and then dug into sketching up some designs.  Here are the slip rings:   These turned out to be pretty tiny, but ...
Last year for a TEDx Event I built a hand bell playing robot as an exhibit.  (See https://youtu.be/IeXUfnC5DCs)  Bot DingsALot is a machine that plays music using handbells.  It is built on a Raspberry Pi platform using Adafruit's PWM Servo Hats.  There are twenty finely tuned bells that in conjunction can make beautiful music.  I have had this piece on exhibit a number of times so I also added a MIDI keyboard controller to allow an onlooker to interact with the bell mac ...
therepairatrooper

Why

Posted by therepairatrooper Mar 22, 2019
I was asked this question by my son, why trying to create this when you could just use a Windows PC and some free image display software? The easy answer is "because". But I realized that this did not go far enough in explaining my motivation and what I wanted to accomplish. The purpose of course is to approach a situation from a different perspective and see what new skills I can learn. Sure I could follow the easy route but then I would not learn anything and it is important to always be learn ...
Introduction Moving the Torso: the Stepper Motor Previous Episodes Next Episodes Introduction After a series of positive comments and very good suggestions by shabaz  beacon_dave  and mcb1 it's time to go ahead another step. I mentioned the users whose comments helped me to address what in my opinion seems the best solution to proceed. What I consider important in this process is the fact the constructive critics focus the attention on possible alternative solutions a ...