Summary

tracks the sun collects the suns radiation and focuses it in one point

Instructions

needs a motor a piece of string and a controller
i've just made trapazoid shapes that if you put them all together the should in theory make a parabolic dish. i've also added the spread sheet with all my calculations for the trapazoids. it's possible to recalculate with different collection area of focal point to suit your needs.
I realized i made a mistake in the calculations i've reloaded the corrected version
i've added some trapazoids that if you were able to cut 30 of them out of a polished alimium sheet with a lazor cutter all you would have to do is rivet them together and it would make a parabolic dish.

solar tracker frame and parabolic dish