Brake lever


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kylle
kylle
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I'm planing to make a carbon brake lever.
Q1:  Should a two part mould be strong enough to do this?
Q2:Now I'm seeing a lot of bike part brands using unidirectional carbon layers to do this kind of works. what do you advise? twill or uni?


example of a carbon brake lever:
http://www.bikebling.com/v/vspfiles/photos/Formula-Carbon-Levers-R1-2T.jpg



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MJCT
MJCT
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I own a pair of Formula R1 myself but my leavers are made of magnesium. Some time ago I also thought about making a pair of leavers in carbon. I concluded that the only way to get an acceptable result was whit a 2 sided mold.

I don't have a single idea about the number, weight, or type of the fabric used. If you get your ands on one lever that you're willing to sacrifice you can sand it little by little uncovering the different layers. You can understand how many layers, the type of fabric weave and the orientation of the weave. The weight and thickness of the fabric can be a little trickier for the untrained eye. It's kind of reverse engineering.

You can always find the thickness on a carbon lever and try to replicate it whit the fabrics that you already have.

You should always respect symmetry - when viewed in cross section your laminate should be symmetric respecting the middle plane. You should also respect balance (equilibrium regarding - and + angled plies). 

 Other terms that you should account for are "quasi-isotropic", "nesting" and "stacking".
kylle
kylle
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 Other terms that you should account for are "quasi-isotropic", "nesting" and "stacking" ? what do they mean?

Know U speek portuguese!!! explain it in portuguese! PM

GO

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