When I went to Paris, I could see Dynamo exhibition (A CENTURY OF LIGHT AND MOTION IN ART, 1913-2013) that mostly focused on various Optical illusions. I was there for an exhibition at CHI conference with my one of my projects, ‘Overlapped Playback‘. Actually this project was based on analog optical illusions, a couple of visitors highly recommended me to go the Dynamo exhibition. I was totally into the exhibitions and it was very impressive and inspirational until now.
So forthis assignment, I would like to build an op-art generator with acrylic material. There are total two layers with various patterns for the optical illusion. I got those patterns from OPARTICA site.
I drew each pattern and I am going to cut using a laser printer. And I hope to make it that people can change the each pattern panel and see what differences between speed and combined patterns.
I drew the below different patterns . (Illustrator)
6 differents patterns * 2(bottom & top layers) = total 12 disks
I am going to use a motor, a potentiometer, and switch to turn those pattern disks.
But there are some problems…
first of all, I do not know how to secure the motor stick with a disk.
I maed a box for the bottom part to hide an Arduino and batteries and
I wanted to make disks by etching with transparent acrylic, I did not work well.
I tried to use black markers to paint the etching parts. But etching with black markers(a sharpie and a board maker) was not good for large areas. (or I missed something?)
Anyway I had to use black 1/8in acrylic to cut them it.
Below designs are not connected each other, so I tried to use with transparent acrylic and black. But for very very small parts, they were melting so that I cannot get the exact size of shapes that I drew.
Finally, I got 6 disks! Top three disks are for the bottom with a bearing. (Actually, I did not need to use the bearing at all…)and bottom three disks are for turning with a motor. When they overlapped two disks, they make different optical illusions.
After that, I built an Arduino and motor circuits to control the motor speed and on-off.
Always for me, making or using a motor coupling to assemble with a motor and something is very difficult. And even though it was a very first project for me, I would like to explore more about kinetic and op art. (different speed of two disks, up and down, more than 2 disks and so on)
Laser cutting is super great, fast and easy, but it also has some limitations, the gap between a file and cut pieces, singed surfaces and glueing two transparent acrylic pieces clean.