I am looking for a rolling chassis or frame, preferable in the upper midwest.
As I start my second season in electrathon, I am finding that my interest lies almost entirely in the drive system and data logging. As a result, I was wondering if anyone in the upper midwest has an old rolling chassis or frame that they would be interested in selling for use a testing platform.
meangreen builds a really competitive chassis. contact him, he might be able to ship one to you.
Seems things are going full circle:)
I got sucked into this project when my nephew and I were searching for an interesting project to keep us out of trouble last winter. Josh came across Jim's blog and off we went.
If anyone hasn't looked into Jim's work, it is very simple and elegant. Nothing fancy. He does so well because he has used an iterative process to work out a lot of kinks in his vehicles. They have few weaknesses so they perform well!
Middleton High School, Tampa
"If you ain't first, you're last" -Reese Bobby
When I first saw that build thread. I flashed back to my first pinewood derby. In our small, mill town in the midwest, the pinewood derby was a 'big deal.
I remember the big day like it was yesterday. We got to the school. All my friends had carved their cars into cool shapes and given them fancy paint jobs. Dad and I had had a unpainted block of wood with slightly rounded corners. Our number scrawled in the top in green magic marker. I was so embarrassed. I cried and cried. My humiliation was so great that my eyes were still puffy and I had snot running out of my nose as I went up to collect the first place trophy at the end of the evening.
It turns out that dad might have been right. He said the only factor that mattered much was how well those little plastic wheels turned on the nails used as axles. While the other kids were carving and painting, dad had me spending all of my time making sure the nails were perfectly aligned in their slots. We made sure the nails stuck out just the right amount. Not enough and the wheels were sticky. Too much and they flopped around.
We spent a couple of evenings spinning the wheels with our fingers and pushing the car across the kitchen table. When we were satisfied the wheels were running true, we used little blobs of epoxy to everything in palace. Those blobs served as bushing to prevent the side of the wheels from rubbing against the side of the car.
Sadly, my five year old eyes were unable to tell the difference between ugly and engineering elegance :)
I'd say ask Mike Hodgert or Mark Bray in the Eugene, Oregon area.
Both teachers typically have their students cut up the frames before new cars are built.
You might be able to work something out from either or both of them into shipping a frame over.
These one will usually be in rule specifications.