back again for good. Well, 6 pictures for such a small work might appear a bit stupid, but i have them so... those intakes where done from surprisingly thin metal, and their peculiar shape led me to no other choice than to vacu-form the shape in 2 parts. The first part was to build a master. I then cut 2 plastic rounds to the right dimensions of the upper and lower parts and used some Magic Sculp to sculpt the shape, I then sanded the final master.
I tried different ways of heating the plastic -under the lit gas oven I only managed to burn myself while holding the thick (1,5mm ) plastic sheet, under one single flame, icouldn't manage to get enough plastic melting! So i finally got round this stupid problem by holding the sheet of plastic under *4* different candles!