Machining and Anodizing

To use the CMU machine shop full time, I had to take a small course on machining. The class was straight forward, and I knew about 75% of what was taught. I did learn a lot though and picked up some new tricks. We learned the main concepts through two small projects, a pencil holder and a plumb-bob, performing the cutting operations ourselves. Once the skill was demonstrated, we moved on, so most people didn’t finish the projects. However, I spent a little time after class putting the finishing touches on the parts. I’ve machined a million parts for previous jobs but never had the opportunity to display them. While these two parts are pretty basic and not a good indicator of my skill level, I thought it would be fun to “do it right”.


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Tethering: Ubuntu 12.04, Android 4.0.4, Nexus S 4g, Sprint: FML

A quick post to document my failures and final success.

Back story:
I’ve been using PDANet on my Windows 7 machine to USB-tether my Nexus S 4g (on Sprint) running Android 2 (then 4) for a year now and its been great. I was 100% pleased with the setup. Unfortunately I just got sick of Windows 7 and decided to switch to Ubuntu 12.04. I’d heard good things and was back on the linux bandwagon.
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CMU Mechatronics Project: Multi-shot Cannon

The challenge
Design and build a machine that fires Nerf foam balls and hits static and moving targets with great accuracy and speed.

The team
Four engineers joined forces to accept the challenge.

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Justin Farrell (firing), Melvin Rayappa (vision, coding), Jason Atwood (system integration), and Rachel Jackson (loading, aiming)

The machine

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Figure 1. Depiction of overall mechatronic system with key components highlighted.

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2010 Cycling Season, Closeout

The year lasted longer than I expected. I was planning on not riding from September til now. Well gladly, that didn’t happen. Here’s a quick blast of what happened since August.

At the track, I finished very well at the third Pro Series Race. I technically finished the ominum in 6th place. However, the results don’t show how the rain screwed me out of 5th place. I had won entrance into the sprint final, where last place was still guaranteed one point. That would have bumped me into 5th place. Well five minutes before the race started, the rain came in and soaked my chances. Anyways, I stuck it to Marty later in the year!

Chris Kelly and I teamed up for the second Working Man’s Madison. We rode better than our first Madison. We held our own considering we were racing against the would-be National Champ, Dan Holt.

Work obligations kept me from coming down most of the rest of the season. The one opportunity I had to make it down, I continued my Chariot race winning streak. I ended the year in 15th place overall out of 80+ racers. The highlight of the year was winning Team of the Year with Faster Mustache.


Team of the Year award. Photo Courtesy: Jon Woodroof | twotoneatl.com
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