Teikas Dad
Gold Member
You know, I am really going to have to defer to more experienced fabricators than myself here. All I know is, when I looked at your sketchup model, to me, it looked like if I was going to weld up those holes (assuming a 1/8" rod) the weld would totally fill the holes. In that case, I wouldn't be confident about the weld tying in to the base metal. If you make the hole big enough, you can treat the whole thing like a circular fillet weld, ensuring adequate tie-in to both the bucket and the angle iron.
Just to throw out a number, with a 1/8" rod, you're going to end up with maybe somewhere between a 3/16" and 1/4" bead, or a total of about 1/2" of bead since there are two sides to the circle. Personally, I would go up to about 1" or maybe 1.5" just to give myself room to work. Thing is, you're probably not going to get yourself in trouble making the circles a little bigger than absolutely needed. But, again, you should get better advice from those who are more experienced than myself.
Thanks, I'll have to see what size drill bits I've got around here.