The objective of this experiment is to duplicate the electric rocket using plans from Bill Beaty's website.
My work thus far
I did start on a Mark 3 version, though I did not complete it simply because I turned to other propulsion approaches. To cut the plates for this version I purchased a roller type cutting machine from AccuCut. I also had them make up two custom dies for the shapes that needed to be cut. This cutting approach worked quite well.
Sources of tin
Here are some sources of tin in case you are having trouble finding some: