My new website: http://davidawehr.com This site will no longer be updated.
Latest
Airfoil Generator
This script for Blender 2.5 and later creates an airfoil, given the four digits of a NACA airfoil. Download Here.
If you can’t download the script, let me know through the Contact Page.
Custom Game Controller
Game
The game is very simple. You move a laser up and down to shoot targets. Each target has a random number of points which is multiplied by a decimal number between 1-2, depending upon how close you hit to the center. The product of those two numbers is added up to create you final score after one minute. I might later add better graphics and gameplay to the game.
Hardware
The real focus was the controller and communication. There is a spinning wheel and a button. Spin the wheel to move the laser up or down, and press the button to fire. The spinner is connected to a potentiometer to get the rotation. The fire button is just a simple switch. The switch and potentiometer are read by an Arduino and then sent over a serial connection(USB)
Communication
This was the toughest part. I had to make a way that the Arduino could send two separate values and have them read and identified by the computer. I used the pySerial module for Python that allows me to access the data sent through USB. The Arduino sends a constant stream of data, separated by spaces. The python script reads 15 bytes, and finds a full data packet (when it reads data, the first packet is usually only a partial one) It does some manipulation and separates the two values and assigns them to variables; one for whether to fire, and one for the rotation of the laser.
Edge of the World
An image done for Weekend Challenge #420 at BlenderArtists forums with the topic “Edge of the World”
Made in March 2011
Retro Rocket
"Retro Rocket"
Idea originally from a weekend challenge, but I didn’t get it finished in time.
Made in March 2011.
Polynomial Particles
Particles emitted based on a polynomial curve
This is a particle animation that I created for my math class. I set the x value to constantly move forward, while the y and z values change according to two polynomial equations.
David Wehr 
