By Dravis - 6/30/2017 11:11:42 AM
Just to throw in a nice little tidbit of inside info in this forum -- touching on the endless discussion on how Resin infusion can compare to PRE-preg or other "Aerospace" methods
The process that BMW calls "Resin Transfer" and use for building 750 frames for the ultra high end - carbonfibre overload "HP4 RACE" version of the S1000RR bike -- is an advanced resin infusion process -- using CNC machined moulds, and rather than "sucking in" the resin it is High pressure injected, like when doing plastic parts.
BMW says that this process is used to be able to control fibre orientation down to individual tow strands, in order to control torsional flex and optimize strength to weight ratio.
The outer layers are actually Biaxial CF cloth -- 
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By Hanaldo - 7/2/2017 10:59:06 AM
Really I think this is as different to vacuum resin infusion as pre-preg is. Totally different resins, totally different tooling, totally different set of associated problems, totally different process. End of the day, the parts might not be that different from a resin infused part, but they will just be that nth degree better, which is why high end companies use it.
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