I am currently working towards my goal of building a mountain bike frame for myself. I recently got a tig welder and am struggling a bit getting things figured out. I bought some scrap 4130 cromoly tubing in .050" thickness and been practicing a few pieces a day. Below are today's pieces, I feel like I'm building too much heat waiting for the puddle to form.

These were welded with the following settings.

50 amps, no pulse, #8 cup with gas lens, 1/16" 1.5% lanthanated tungsten, 1/16" er70s-2 filler rod.