So these are some of the welds I snapped from the frame jig we just finished.
This one has 2 MIG welds at the top of the pic witch are ok and are considered a 1F Tee Joint. The joint in the center was a 2G Butt on the sides and a 1F Tee on the sides.
Now this one I have to say at first glance will look messed. You can see the bead is really convex and some serious undercut. This was done in position 2 x 3G vertical down (either side) and a 4F underneath, w/o filler metal. This would be a great example on w weld joint to get full pen on the root pass then I could do a filler/cap over it with filler rod.