Yesterday I finished with engine box. Here are some movies and photos.

I can reach about -0.4 bar of vaccum. My bag was leaking somewhere.  

On the transom carbon fiber could bee seen.

On the 12th of April, I laminated the engine box. Again I used vacuum to finish the lamination process. I can't imagine and wouldn't dare to laminate complex forms and thick fiber without a vacuum anymore. Material I used: 1000 g of unidirectional, 1200 g of quadraxial, and I also added 350g of carbon fiber. Next time the turn is on the inside of the box. 

Above and below, vacuum bag.

I made a litle s--t, the fiber orientation of carbon fiber  is wrong (below).