Shiny new technique: Metal Spinning!

So I have decided to complete readdress my approach to regenerative cooling. After seeing the BPM-5 build by Copenhagen Suborbitals, where they used metal spinning to spin their chambers out of steel, I looked into what it would take to do something similar by hand on my mini lathe.

In my typical fashion after seeing a cool video then reading most of an article online, I decide to commit fully to spinning an aluminum combustion chamber. I modified my matlab rocket design scripts to given me the right dimensions for a 250 lbf chamber and get to work on the mandrel that I will need so that I can smoosh the aluminum into shape.