Saturday, December 8, 2012

Kochs Snowflake

I did a fractal today called Kochs Snowflake.

I was inspired by this guy.
I'm going to try to duplicate some of his drawings on the white board.

Friday, November 16, 2012

Swirls and Stars

I digitized on of my wife's quilting patterns. It came out kind of jagged. I am thinking of adding an SD card interface to the Arduino to do more complicated pictures smoother.

Saturday, May 12, 2012

finally figured this one out

I went back and figured out how to do this picture that I had done when this was just an extension of a desktop. now I got it to work with the arduino. I had to do it in two steps. first one program writes the xy data points to the EEPROM memory. then another program reads them and plots them.

Thursday, March 29, 2012

a smaller size pen highlights errors in the system

I need to find the 2.5 mm round point markers again. I got them at Dollar Tree but they haven't had them the last few times I was there.

Wednesday, March 28, 2012


I was tinkering with the size that I draw this picture so I didn't bother to erase the board before I drew. It turns out the pen had just died and it undrew. Looks kind of neat. I may have to try this on purpose with some of my old markers.

Saturday, February 25, 2012

Friday, February 17, 2012

Valentines day on the white board

I did a little thinking last Saturday. I looked up the equation for a tear drop. Then I turned it upside down and leaned it a little right and left. Here is how it came out on Tuesday.

Thursday, January 26, 2012

Performance art.

Here is the latest drawing.
Since this is really a form of performance art the pleasure is in watching it draw more than looking at the finished picture. I am working on uploading a video.

Sunday, January 22, 2012

Some improvements

I raised the voltage that I run the motors to 12 volts. They run hotter but I don't think they are too hot. That let me speed it up about three times what it was. I tried some things to explore the limits and characteristics of the system.

Then I went back to some old favorites and updated them to work with the LEDs and switch that I added.

They look a lot better with the 12 volt steps.
I am working on some of my other old favorites.

Tuesday, January 17, 2012

stages 0 through 8

Here are the stages of the dragon fractal with curves. I like the individual stages better than the parade.


 And here's a short video. The battery died after only a few seconds.

Thursday, January 12, 2012

parade of dragons

I got it to do stages 0 through 8 all in a row.
I added some LEDs and a "switch" so I can have it tell me to center the marker, erase the board, and press the button. Then it will wait for me instead of just giving me a minute to do those things whether that was long enough or not.
I am going to order the new version of the Arduino that has lots more memory so maybe I will be able to do more stages. When I get that I will mount it to the frame it isn't all just hanging.

Tuesday, January 10, 2012

Dragon fractal with curves.

I got the curves to work on the dragon fractal.
Still needs a little tweeking but it is getting there.

Friday, January 6, 2012

Dragon fractal.

I'm working on the dragon fractal in Arduino that I had done in QBASIC.
I want to do it with curves instead of sharp corners. It looks much cooler that way.