This is a Prototype Copper End Spinning Machine for the mechanical contractor industry.  While working as a Service Engineer for T-Drill, I was given the challenge of developing a portable version of T-Drills SP-110 Machine.  The SP-110 machine uses a 3 phase 15KW electric motor to spin a hardened die with enough torque that the friction of contacting the stationary copper tube makes the copper go molten and flow into the shape of the die. This process can form the end of copper tubes into bullet ends, spherical ends, reducers and swedges from 1/4" all the way to 4".  The downside of SP-110 is its size and power consumption.  The SP-110 also uses compressed air to maintain clamping pressure and spindle forming pressure. 3 Phase power and compressed air are not always readily available on job sites, so I designed a weaker 110v electric motor to use a CVT to spin a heavy 80lb. flywheel up to speed so that when the copper comes into contact with the die, the flywheel is storing enough kinetic energy that the friction doesn't stall the machine. The clamp and spindle motion are all mechanically controlled so the only jobsite requirements are 110v at 20amp.