The frame jig is in the shop of a friend of mine who builds about 200 bike frames a year in Ti, Steel, Aluminum and some Carbon Fiber even.
All the frame builders I know use different jigs....and I know at least 4. He was saying just this a.m. that it would cost about $1500 to replicate though. For sure it makes it all look fairly easy and the bottom line is that the frame comes out very well aligned. I have seen some pretty crude jigs produce some really quality frames as in the end machining is all about patience and precision.
The last hour was taken up with this detail: