dots

hmmm

hands with a different pen

I tried it with a different pen. It has a bullet tip instead of the chisel tip of the the other one. You can see it was also about out of ink by the time it got done. It is stickier than the other one so the circles it draws are smaller even though the doodler thinks they are the same size.
What should I try next?

more hands

I added some dots at each point. Looks better.

hands

See if you recognize this one. 5005 data points. I may try adding a little circle at each point to make better definition.

I need to give credit the the wonderful people at the Evil Mad Scientist Laboratory for the stipplegen program I have been using lately to generate the paths I am drawing. Lots more to learn about this one. Thanks for a neat idea guys.
http://www.evilmadscientist.com/2012/stipplegen2/

enough already

ok. this is as good as it gets. 3223 data points.

this is the path it was trying to draw.

 

rose with a new pen

I tried the rose again with a new pen.
I will try it next with more dots.

trying a new technique

I'm trying a new technique. I learned to use the empty program space as a flashdrive. This picture has 2500 precalculated points. It still needs work to make the picture more recognizable but I still have half the memory space left so I can do that.

happy new year 2014

Here is some doodling for the new year.

Up close it has some interesting textures.

rewrite of code

I've been rewriting the code that runs in the background to make the plotter work. This isn't evident at all to someone watching it run but it leaves more room for me to make the main program bigger.
I ported the "all" program over to the new system. This draws four pictures in sequence for a long display of the plotter. The four pictures are triangle, fourballo, cesaro4 and dragon. Here are pictures of what it drew. I used a very fine point chisel tip marker. I think I like thicker tip bullet tip markers better.

triangle

fourballo

cesaro4

dragon

If anyone is interested in the actual code leave me a comment.

here is how it looked when it finished

The robot team enjoyed the doodler. I had turned the voltage down to 9 instead of 12. It made a couple of missteps but I let  it finish. Here is what it looked like.

I will draw it again and post it later so you can see what it is supposed to look llike.

Robot Team

I got this down from the store room and added some screws to hold the Arduino in place so it will travel better. I am taking it to the Robot team at Crete High School this evening. I am still working on changing the software to do things in a much cleaner and shorter program. I will post the code when I get it done.

I got on the list.

I got listed on this guys list of similar devices.
http://plotterbot.com/documentation/plotterbot-prior-art/
I might try the software he is using and see if it will work on mine.
I know I haven't posted anything for a while. I just got the doodler back out of storage and am making some changes to it. Will post more when I get that done.

Kochs Snowflake

I did a fractal today called Kochs Snowflake.

I was inspired by this guy.
https://www.facebook.com/snowart8848
I'm going to try to duplicate some of his drawings on the white board.

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.

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.

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.

undrawing

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.

I twisted it

I took the four lobed one and twisted it.

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.