yeah i have a y splitter thing from the bottle, which works fine.
Tigging the stop on should be ok i think. just move quick, try not to sink loads of heat into it. Might be wise to try and avoid placing it over the butt transition. Easier said than done as its hard to find the butt on a frame thats already together, but afaik its a good bet to avoid placing things over the transition zone. When i put braze ons on i always avoid it.
Did some practice beads.on an old scrap frame (Dawes MTB) and had a lot of cracks. Maybe only 2 beads out of 10 were uncracked. I messed about with settings but couldn't seem to shake it, which made me think it was the rusty inside :D
You don't need that to get decent welds. Buy some clean proper test tubing.
I started with 4130 plain guage. It is worth knocking out a bunch of t-joints imo
yeah i have a y splitter thing from the bottle, which works fine.
Tigging the stop on should be ok i think. just move quick, try not to sink loads of heat into it. Might be wise to try and avoid placing it over the butt transition. Easier said than done as its hard to find the butt on a frame thats already together, but afaik its a good bet to avoid placing things over the transition zone. When i put braze ons on i always avoid it.