I had already made the toe board repair panels so I welded the left side to the original panel.
Trimmed/clamped.
After welding and smoothing.
I knocked down the biggest part of the weld bead with three 4" cut off wheels stacked together to keep them from digging in. Then used the 3" 90* air grinder with a 36 grit disc, then an 80 grit disc to take out the deep grinding marks. Finished up with 60 grit on a DA sander.
