Quote:
Originally Posted by Rawknees'Turbo
I wonder why they chose to layer the CF like a paper towels on a roll like that?
I am not a composites engineer or expert, but have done enough of that work (repairing aircraft nose bowls, wing tips, and so forth) to know that if you want strength, and are layering, you don't situate the fiber layers all in the same direction. Sure seems strange to me.
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It makes it faster. You lay more material for each pass of the arm. I was looking for the trough of resin that each TOW (string) must pass through to get inpregnated. It may be there but I couldn't tell. Prepreg material comes out of the box with the resin already squeegeed into the material. Its done at the vendor and placed in a vacuum sealed bag and frozen so it doesn't start curing. Normal shelf life is a year at 32 F or less.