Monthly Archives: August 2010

Sanded back

Today I put the last 2 layers of carbon on the seat-tube and then finally got to unwrap all the tubes and sand back the joints and bamboo. Here’s what she looks like now: The only things left to do … Continue reading

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Finishing touches

Today I’ve put the first of the final touches to the frame – a carved bamboo head-tube Cognitive logo. It’s a bit simplified, but that’s ok as it will probably change down the track anyway. The only things left to … Continue reading

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Wrapping & Heating

I’m continuing to wrap the bottom bracket joint today. I’ve now done a total of 9 layers, which I’m pretty sure will be enough for a sturdy and stiff BB. After wrapping up each series of layers in cling wrap … Continue reading

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Wrapping the bottom bracket

The headtube’s pretty much done so I’m now starting work on laying up the bottom bracket area. It’s a much more complex shape to work with, which made the template cutting all the more fun. I’ve figured out a better … Continue reading

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Carbon fibre wet layup – stage 2

Unwrapping the first layer this morning and it’s all gone well. The cling wrap’s left lots of wrinkles in the resin, which isn’t ideal, but for these base layers it’s ok as it’ll all get sanded back. Hopefully by the … Continue reading

Posted in bamboo, carbon fibre, Frame building, wrapping | 2 Comments

Carbonfiberizing

So tonight I’ve started down the road to the final wrap.  I didn’t document last night’s fibreglass layer, but it’s very similar to this process, just with white fabric instead of black. The layer of fibreglass is used between any … Continue reading

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Seat post in

I’ve cut, drilled and notched the seat-post sleeve and epoxied it into the seat-tube. Hopefully the carbon fibre will arrive tomorrow and I’ll start the mega-sisal-carbon-bamboo composite process!

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Tune in, drop out

I’ve completed the wrapping of the drop-outs with sisal. I’ve also added stay support bars near the bottom bracket and seat-post to give the frame more stiffness. Here’s some pics: The clearance between the last cog and the chainstay wasn’t … Continue reading

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That’s a wrap

Started wrapping the sisal twine around the joints tonight. Here’s the process for the seat-tube. I’ve done it in two layers. The first using lengths that run lengthwise down each pole, following the curves of each filleted corner. The second … Continue reading

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