tir38

As part of my ME degree from Georgia Tech, I had to take a class called Experimental Engineering (ME 4055). It was a senior level class where students worked in teams to complete a project that mimicked the research cycle of a PhD student or professor. The team was required to design and conduct a set of experiments, evaluate the results, and then write a paper. For most students this was a rather bogus class. Students were limited to a small amount of hardware and research areas, and each semester’s reports looked all too similar to previous. I, however, had the very special chance of taking this class with Adam Reich during my semester abroad at Georgia Tech Lorraine (GTL), which meant working with Dr. William Singhose and his PhD student, Jason Lawrence. They were at GTL to teach several other classes (another one I was also in, ME 6401 Linear Control Theory) and to continue/promote their research with a highly portable, miniature gantry crane.

The mini gantry crane setup at GTL.
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After assembling the hardware for my SLAM (Simultaneous Localization and Mapping) robot, I set about to write the code which controls the drive motors, senses obstacles, and records the robot’s path. Lego’s NXT kit comes with a rather basic visual programming language called NXT-G. This program, which constructs programs by creating essentially flow charts, is almost counterintuitive to anyone with command line programing experience. I decided instead to use the third-party programming language called Not eXactly C (NXC) and its associated IDE, Bricx Command Center.
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I regularly find myself explaining to people about my experiences working at the most forward-thinking coffee shop in the city. To paraphrase my usual explanation: “Octane Coffee is dedicated to a continual evolution toward providing the best coffee possible by endlessly educating its employees and customers about the many facets of coffee cultivation, production, and preparation.” This education is founded on both technical training and technical knowledge of coffee. I’ve done an extensive amount of exploring through my exposure to the coffee world. Several of these experiences are documented here.

Pulling two shots during my barista certification. Photo by John Cole.
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I painted another pair of shoes, this time for my friend, Jaime Walker. I call them “walkers”. Rather lame, I know. I started with Vans KVD’s, courtesy of Rená at Abbadabba’s. I used the same brand paint as previous shoes and added purple tulips with green stems. I then outlined the flowers with a fine-tip permanent marker. I began by using a “very fine” tip, however the paint dried out the marker tip. I then switched to a fatter “fine” tip marker and with enough finesse, I was still able to draw very thin lines.

I decided not to dye them because I have had problems with other shoe-dying projects lately. When dying bright colors such as red and navy blue, both the canvas and the rubber changed color. Also, as I learned the hard way, it is impossible to bleach black canvas Vans white. I tried to make white shoes with black soles by starting with the black/black Vans slip ons. The fabric disintegrates very quickly and begins to rip after coming into direct contact with bleach.

Anyways, I learned a lot during this project about delicacy and patience. Its not easy to fix a mistake on white canvas. Slight smudges of purple are obvious in one of pictures below.

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This year, like last, I decided to hold the Santa’s Little Messenger Bicycle Race benefiting Atlanta’s Toys For Tots program. The concept behind the race is that individuals and businesses around town, who were going to donate a toy to Toys For Tots, register the toy with me via a web form instead of finding a local drop off point. Then, on the day of the race, riders picked up the toys and returned them to the “base”. Two categories of racers (solo and two-person teams) competed to earn the most “toy miles”.

The race began almost immediately with a terrible rain storm but all the riders really toughed it out and did a great job. This year, seventeen racers (six teams and five solo racers) collected 96 toys. The complete results are available on Faster Mustache.org.

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