On my single speed bike, I run front and rear brakes. However the frame doesn’t have cable routing bosses on the top tube. Right now I just have the cable housing zip-tied to the frame. This isn’t a very elegant solution and I wanted to improve it.
Problem Solvers makes a nice clamp that will route two cables. Unfortunately they don’t make them to fit my 1.0 inch top tube. Carnegie Mellon has a 3D printer and I had always wanted to experiment with rapid prototyping parts. It is very easy to design a part in Solidworks and then export it to the 3D printer. I thought I could design and fabricate something to fit my need.
Versions 1 through 5, left to right.
Continue reading “Backstop Rapid Prototyping”
I never got around to posting about my time at Georgia Tech’s Center for Assistive Technology and Environmental Access (CATEA), where I was a researcher and shop manager. CATEA designs and tests all sorts of technology to help disabled people. The entire lab is a sort of skunk works operation; imagine Myth Busters “what crazy thing do you want to try today”. I was responsible for bringing to life the ideas and inventions of several Georgia Tech professors and their grad students. I had an entire shop at my disposal and best of all a Georgia Tech VISA card!
Continue reading “Past Work: Center for Assistive Technology and Environmental Access”
I received this wooden tool chest as a bonus for buying some old furniture from an out-of-business machine shop. It was sitting around for a while and I didn’t know what to do with it. I had the idea that it would be cool for something and, in full pack-rat mentality, I’d hung on to it for several years.
A fair amount of my recent projects have been what you might call stupidly-attentive-to-detail. I’ve usually obsessed about having every wire cut to length and soldered perfectly. I have delayed a project while I waited for that one perfect $2.00 part to arrive in the mail. I realized this was queuing up my project list and creating quite a bit of frustration. I was actually not getting any enjoyment from side projects. So, I decided to have a little hack project and get something running in a single evening.
Continue reading “Desktop Power Supply Hack”
Its official! I’ve graduated. Man, what an experience. This has been one of the most rewarding decisions of my life. Its hard to imagine what will happen next. I have day-dreamed and focused on grad school for so long that I didn’t spend much effort looking past this moment.
Continue reading “Grad School, Peace Out!”
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”.
Continue reading “Machining and Anodizing”