Hello.
I watched the videos of the carbon fiber hood manufacturing but i want to know the approximate quantities of each of the materials that i would have to buy in order to acomplish it. Id like to manufacture some hoods so if I know the materilas for 1 i can approximate the ammount for about 10
Thank you

Probably because its a bit of a 'how long is a piece of string' question. It depends totally on the application and what you are wanting to achieve. I've built dozens of vehicle panels, and the layup is pretty different every time. In fact a lot of the time if I make the same panel twice, the layup gets refined and is different virtually every time.

You would really need to tell us exactly what you are building. What vehicle it is, what panel it is, what its application is going to be (street, race, etc). For cosmetic panels, 0.65-1mm is generally thick enough. For structural panels, youre probably going to want 2mm up. Often when replacing metal panels, the simplest solution is just to make the carbon panel the same thickness, this way you will be around about the same strength at a significantly lighter weight. With the added complication that metal is quasi-isotropic and composites are not. Whether you use a core or solid laminate depends on what you need to achieve. 

It really is a bit impossible to answer based on what you've told us. It takes experience and knowledge to know the answer, which really means you either need to lean heavily on people who have the experience to tell you what to do (which isn't great for running a business) or you need to get some experience to make that knowledge your own. 

The better way to decide how much to order is to work out your start-up budget and decide how much you can afford. All composite materials will get cheaper the more bulk you buy. If you are intending to start a business, I would plan to purchase atleast one 50m roll of your cosmetic 3k twill/plain weave carvon, one 50m roll of a heavier 6/12k carbon for the backing plies, and then rolls of consumables like vacuum bag, peel ply, bagging tape, core material etc. Or if you are going to make 5 panels and see how you go, just buy 10m of each type of carbon and some of the consumables. But this is a difficult way to run a business, because you will be constantly chasing your tail for materials.

"The slowest guy, in the slowest car, in the slowest run group is still having more fun than anyone sitting in the stands!"