1 Mitering Seat Tube

In the Mitering videos below Craig covers the tools and process of mitering the tubing so that fitment of the joinery is precise. Calfee Design 1-800-965-2171

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Introduction Video

In the video you will get to know the DIY Bamboo Frame Kit's contents as Craig explains the layout of tools and setting up the work space for the build. Calfee Design 1-800-965-2171

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Instruction for Building a Concrete Table

Concreet Table A flat table is key to building straight frames. Melamine chip board is fine for awhile but it will eventually warp, especially if left outside. Build a long lasting, warp-proof flat table out of reinforced concrete with a poured epoxy surface. Find a mostly flat floor to work on. Lay down a strong plastic sheet (Visqueen) that's at least 4 mils thick. Continue to instructions

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Bamboo Splitting

Causes, Prevention and Fixes Causes: Splitting of bamboo is caused mainly by rapid changes in moisture content of the bamboo. This can be caused by rapid changes in relative humidity of the atmosphere, or the bamboo being dried unevenly, or getting soaked and then drying out too quickly. Some bamboo species are more prone to splitting than others. And thinner walled bamboo is more susceptible to splitting. Lastly, the septums of the bamboo (those little walls at each node) can…

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More about Bamboo Bikes

It's all about the Bamboo We offer our bamboo bicycle frames in all frame styles and geometries. We enjoy this flexibility as we do not use forms or molds to join the bamboo tubes. As a result, there is no imposed constraint. We are able to miter and join the bamboo tubing at any angle to support complete personalization of the product. While they have long been popular with enthusiastic racers and endurance road riders, owing to our bamboo’s amazing…

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More about the Tetra 44

Even bicycle enthusiasts and industry insiders are surprised to learn that Tetra was invented back in 1987 and only four years later was being ridden by Greg LeMond and his Team Z teammates in the world’s most important cycling event, the Tour de France. Greg wore the leader’s Yellow Jersey aboard our Tetra, then less than five years old. Today, nearly 20 years later, Tetra tubing and bicycle frames have been continually optimized; sharpened by improvements in raw materials, manufacturing…

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Turning Bamboo Into a Bicycle

A cycling entrepreneur has turned to the durable plant as a low-tech and affordable option for building bikes Bicycle designer Craig Calfee likes to talk about the time a film crew tried to stress-test one of his bamboo bike frames. Three men—each weighing about 200 pounds—piled onto one of the two-wheelers in his California showroom, and off they went. The ride didn’t last very long.... Read More at the Smithsonian Magazine

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Grades of Carbon Fiber

Polyacrylonitrile Fiber There is a lot of marketing techno-babble out there with all the different companies getting on the carbon bandwagon.  The idea is to try and convince the general public that they are using something special by using technical terms that have little pertinent meaning.  The real differences are fairly simple. Almost all carbon fiber is made from a common industrial fiber called polyacrylonitrile fiber, also known as PAN.  Most PAN fiber is used to make acrylic fiber.  It…

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