augh i see that makes perfect sense...
I must say that jig looks a nifty bit of tool making, functional not too expensive but an absolute must of course the finer the tolerances with that baby, the better the frame ! forks are prob straight forward when you know how.eh! tell me, is this an all out business venture ? or part time venture ?
As you can file and butt joint, 853 must be on your mind or even titanium. the bioracer diagram i have has heaps of info on it .even the h bar stem 11.5 & cranks 172.5 are given. pm me when you are ready!
Yeah, the jig is central to the operation. The place I'm learning is just about to upgrade all their jigs so I'm probably going to buy the one I've been using.
To address your questions - yes it's part of broadening my horizons, I'm interested in bikes and steel frames so I thought it high time I knew what you had to do to design and build them. I may well see if I can turn it into a side line so that it at least pays for itself or maybe (hopefully) returns a bit of a livelihood.
853 is certainly a possibility but I need to get better at brazing first. 853 a lot less tolerant than 631 to heat so it's easy to burn holes in it. Practice makes perfect though! I'll make a few more 631 frames, experiment a bit and then perhaps dive in.
Spent today filing and setting up the rear end of the frame today - went well and is now ready for brazing. Yay.
Cheers for now...