I built this compound parabolic dish collector from the templates posted by Gaiatechnician on instructibles. I didnt want to create a mould so I skipped that part and dived directly into making the twelve petals. I will post after Ive made my stand for the pot and completed the frame that could be positioned facing the sun.
Step 1: Petals cut out
Cut out the 12 petal shapes given by gaiatechnician and paste reflective material onto it. Tape the back ends together and form the segments into a circle and tape the last one to the first one.
I bought irrigation pipes and fittings to make a lightweight circular frame and will complete it on Monday.