This is one of many of my machines for kids. This is the second revision of the xyzeeBot. The original had strings, this has belts. I guess I wanted to make something like the classic Etch-A-Sketch and to see if I could fabricate something like it. I am always trying to improve my machines and this was a definite improvement over the last one. The last one was big and this is not only a better design, it has a smaller footprint and easier to transport to events. I like the idea of scribbling and the randomness. My machines do have a bit of chance and randomness to them.
It is a basic XY layout with two motors for each axis. The pen holder, which holds two ballpoint pens, also has a motor which rotates the pens, and can be turned on and off. It is kind of a controlled scribble. I designed this as I went and realized that you cannot really see what it's drawing, so this prompted me to add a camera and monitors to it to see what the pens were doing. This is driven by an Arduino Nano with bridge motor controllers. The joystick is from a salvaged wheelchair. The gears and parts are laser cut.
I am always learning new things by building machines. With this one I learned that there is always a solution if you stick to it. There is always some way to make it better.
My whole goal is to build and create and inspire kids to do the same. I love building and making things and seeing kid's faces light up when I share with them. My machines now are mainly for play and inspiration, but I wish to expand with kits and classes for kids.