Not frame building but frame working. I got this Specialized Expedition with a slightly tweaked tt and dt from a front impact of some sort. The fork was straight(checked on a friends surface plate) but the tweak was just behind the ht lugs where this usualy occurs. The ride was squirley, the front end feeling very "light". I asked for and got help from C&Vers finding a spec sheet for it, and yes its the 68cm at the bottom of the sheet.



Measuring the ht angle with the "handy level" app(free app, works well) on my smart phone I came up with a 77 degres ht angle, and a wheelbase about an inch shorter than spec. My method was primative but worked well, see the set up below. It took me several tries to get the cold set to stay, I was really surprised how much the bending bar flexed to reach the desired spec.
Materials for the process: pieces of 2x4, one 3/4"bar clamp, one 1.5" T fitting, one short 1" pipe, all of which I had. I "dogpatched" together after seeing the real tool on a thread somewhere on BF. Using the wheelbase as the target as was able to get it as per spec, measured at the back of the drop. Eyeballing(closing out the light) the ht and st show parallel, at least to my eye, and good to go! This is now my grocery getter/errand bike and rides/handles great.

crude set up as used(except I had to use a screw jack of similar size because the bottle jack didn't work on its side!) The primered areas are where I brazed on cable guides as none were present, someone must have removed them for whatever reason, but I didn't take pics of doing it, should have as its more pertinent to this forum but oh well







and a nothing to do with frames pic of a chainring I used as a stamp when I built my little work shop a few months ago