I yell because anyone who doesn't know the difference between an arm and a handle needs to be yelled at for that and also for not paying attention in 3rd grade science class where they introduced the Periodic Table.
Yes, no, maybe. I measure the width so I know where it "should" be when we are done. If I weld and it needs to move because it isn't straight when I clamp it up, then I have to cut and clean the welds. I will generally clamp a piece across the frame to kinda hold it, but that stuff generally...
There is no complexity at all. It is basic and simple but the execution done well requires some thought, a solid game plan, and a high level of accuracy.
This is my average frame cut. I use a scribe to make the lines and follow them very closely.
Measurements of which part? Whether they are 1/8" or 3/16" is of no consequence. 1/8" is more than plenty since we are not relying purely on the strenth of the inner plates. They are merely an additional bit of support with the rest being done by proper butt welds at the joint. This is just some...
I do lots of plug welds, I use frame material or a very close approximation, and then my inner plates are cut and ground to fit very tightly.
Green line is the rear joint, the front joint is 8" forward of it. A bit of metal finishing, and done.
I started with a no name 5 pack from Amazon. Then I got a couple pair of the Milwaukee versions, then I got the large and small pair of the Knipex. I'd be money ahead just starting with the Knipex and they have the added bonus of being able to cut more than zip ties and copper wire being rated...