|Project by BigMP||posted 09-24-2013 04:32 AM||5835 views||72 times favorited||68 comments|
Hi Guys and Gals,
Here is AnalogOne, my first wood framed bike.
I am an avid bike rider and I was challenged by my good friend, who owns a local bike shop, to combine my interests and make a bike.
I designed the bike from the ground up. I first made a full sectional view drawing of the bike to confirm proper dimensions and parameters. Then began the process of deciding how to integrate my design with the rules of woodworking. Next came integrating the “bike parts”. I utilized titanium inserts for the head tube and the bottom bracket that were anchored with toughened epoxy. The titanium parts are keyed into the wood via the epoxy so that the strength does not rely on the adhesive properties alone. The dropouts were purchased and then modified by adding the tabs to them to extend them into the wood so that I could bolt them. There is a collar around the seat post; this feature incorporates a groove that was cut into the wood, which was then wrapped with epoxy impregnated spectra fiber. After the wrap, a monolithic layer of epoxy was cast over the wrap and this make the surface flush and smooth. This feature prevents leverage from the seat-post blowing out of the back of the frame.
African mahogany, undetermined mahogany, yellow heart, and finnish birch plywood were used.
As you can see, this bike employs a Gates CarbonDrive system. I chose this drivetrain because of its clean look, minimal maintenance, silence, and relative rarity. Also this bike employs disk brakes. The front fork was not made by me even though it was tempting. It was very important to me that this bike is ridable so I made the frame and sourced the major operational parts. . I have about 200 miles on it so far.
Other notable features include:
+Hollow top and bottom tubes
+Rear brake cabling that runs inside the frame
+Main frame layup that includes 9 distinct layers, alternating between 3 and 6 pieces each
I have already started the second one, and for the most part, it will stay the same. Testing revealed some deficiencies and the new bike design is addressing all those issues. I shall post the second one upon completion.
Thanks for looking and comments/criticism are welcome.