Instructables

How I built a carbon bike frame at home (and a bamboo frame too)

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Step 3: Making the core 2

Picture of Making the core 2
After adding all of the polystyrene rods I have sanded all of the added small parts in the places of rods connection areas to achieve soft shapes. After that I have wrapped these junctions with one light layer of fiberglass. After the curing of the epoxy resin, I have softly sanded the whole surface.

After finishing the frame, you can melt the polystyrene out of the frame by using acetone, so you can save about 90 g of the weight. I didn't do so, as I think the core helps to dampen the vibrations and shocks.
 
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iluvcamaros2 years ago
Did you do anything special to the legs of the dropouts to create a better bond with the CF?
bhale19874 years ago
Where did you get the foam rods?