Step 11: Building the bamboo/carbon frame 3
The frame building itself was quite quick. I have used the frame jig I made for my previous carbon frame. Bamboo rods were fitted in miter joints together with aluminum tubes (bottom bracket shell, head and short seat tube) and bonded with epoxy. The junctions in the rear part of the frame I have made from polyurethane foam and the following laminating process of the joints with epoxy resin and woven carbon cloth was practically the same as for the carbon frame. The bamboo rods, in the place of connection with the carbon were machined, so there were small shark teeth which guaranteed that the bamboo will not loose. Also it is important to have well dried bamboo, so it will shrink later minimally.