Sorry Derek, seems I let a little of my bitterness seep into your thread, will elaborate, original patent K&T, Sheldon and his team worked for K&T. Will give you the very abbreviated story. K&T CEO, runs company into the ground (typical), leaves to become CEO of (cash rich) G&L. G&L buys K&T. Now, inquiring minds might wonder if said CEO was on payroll of certain company the whole time. Was an amazing machine. As for the hobby version:
http://www.cnczone.com/forums/video....ils&videoid=95