Flywheels achieving linear motion

[mechanicalbrain]

Thanks both. yeah I meant a disk with most mass on the outside. Thats an interesting idea about turning a flywheel to transfer to a electromagnet though I wonder if I guess it would work better then an electromagnet powered directly from a battery since the potential power can possibly be greater then that of the battery alone if I'm efficient. Yeah as to the machine press I'm not surprised, if you do the mathematics you realize flywheels can store massive amounts of energy. Actually the centripetal force on it is so great that they can explode if not balanced right (happens in the racing cars sometimes ) I'm looking at carbon composite but I'm also looking at using a medium power motor to power it, hopefully I won't have to worry about it. If I were to use electromagnets would I want to repel the rod or attract it? I'm kind of unsure on how that part would work, this is starting to sound like a rail gun.