Originally Posted by
Andrew R Stewart
Brian- Purox W-200 torch with #4 tip (.036" diameter). Straight O/A set at about 4.5 lbs each. Neutral flame of small to mid size. GasFlux type B flux. GasFlux CO-4 rod in 3/32" dia.
The first joint i just ran a fillet around it, no flowing first. The others i flowed to get a significant internal fillet then ran a fillet. All got two small tacks to hold things so i could remove the strip of steel that held the stubs in place during the tacking. Most were bike tubing wall thicknesses but the last were .058/.065 thick pieces. While the mitering wasn't bad all were not quite as tight as I'd do a real frame miter. These were for the fillet practice.
My project is a seat post thing and a back of bag vertical support strut. Ill post shots when they are done. Andy.
You did a really good job managing the heat with the short pieces of tubing. How many degrees of circumference do you estimate you cover in a single position?
I think I go about 35 degrees uphill and 5-10 degrees over the top and down the other side. I prefer uphill welding.