After studding many still designs I had decided to build a continuous flow Coffey style still (http://www.stillcooker.com/patent_still.html) on a small scale from readily available material for experimentation with alternative fuels like alcohol. I knew I was not going to spend hundreds of dollars on copper tubing so I started thinking of alternatives. I had recently built a tin can alcohol stove (https://www.instructables.com/id/Cool-Little-Miniature-Stove!/) and decided to try to use some beer cans.So build it , change it and start making your own fuel!
Step 1: the Schematic
This is the concept and diagram of the continuous still I designed.