Hey all- So my shop continues to get set up. Today I struck a flame for the first time (in my own shop) in a couple of years. I melted the end of a 6x32 all thread rod then checked all the torch fittings for leaks and such.

My question is this: How do others insure that a coupling (S&S) is brazed into the tube and the two ends of the tube are in line with each other.

Starting with square miters do you fixture the set up asnd fully braze? Or do you tack and free hand the finish brazing? Other methods? I've seen the CoMotion method of fixing the tubes to a length od Alu channel but was not able to ask further questions.

I know that it is not too important except to have the jointed tube look "straight". Miters and build alignment will ditermine the frame's final alignment.

Second on the question list is the place to miter the tubes. With the shorter "working" lengths of the TT and DT the miters are going to end up very close to the thin wall sections. Any suggestions or guides? I followed the recent "How Much Butt Is Acceptible" thread and assume the same holds true for the coupled tube.