Here is a faster version of the video:
My final project evolved from a latte art making robot to a condiment art making robot. The video (still uploading) describes most of the process and the final result, but I still would like to focus on a few pictures I took.
Here is an example of an interesting pattern made by the machine.
Profile view of the machine with standard issue ketchup
A side view of the finished project making a delicious work of art.
The electronics to go with the entire system. The LEDs blink too! The small red PCB is the breakout board for the microphone. It handles some of the more complicated amplification tasks with the audio.
I would also like show everyone https://processing.org/ It is a sister project to Arduino that uses Java to create visual interfaces on a PC.