Here's the machine I used for the spin art: Here's the machine that I made as a platform for the spin art machine. It's based on this spin art turntable design on the PIE Network site.] The simple, single direction turned on and off with a touch sensor. Here's the program: A program for the spin art machine that starts and stops with the touch sensor.

Drawing made with a simple spinner. During the workshop this spring, I worked with a spin art machine. This first drawing is made with watercolor, a very fine brush, and a spinner that spinned in one direction. I experimented with the speed of the motor a bit -- too slow, and it just didn't have enough power to turn the paper. Made with a spinner that goes forward and backward.

After trying some photographs with very long exposures, I thought I'd try making some drawings using a machine that could make many many repeated marks. Here's the machine: Drawing machine with markers. The program ran the motor forward for about 1/2 second, then backward, and repeated about 100 times. I thought that it would just draw the same line over and over, one on top of the other.