I made the original mounting flanges from 1-1/2" x 3/16" mild steel bar stock. The only cuts I made were the angled cut at each end.
The sawn sides get smoothed up on the belt sander with an 80 grit belt.
Once the sides are smooth and 1-1/2" apart the end cuts are made and cleaned up on the belt sander. I find it much harder to score a line on the stainless then mild steel or Normalized 4130.
I'm also finding the cut speed is about 4 to 4-1/2 minutes for the long cut. That seems about the same as when I cut 3/16" 4130.
The bad news is the blade goes dead in 8-10" of cutting. I still have plenty of 1/4" coil stock to make blades but that's more time and money. I need to find some 1/4" x 1-1/2" bar stock. McMaster has some 1/2" long life blade stock but it's about $250 for 50 feet.
The next step was to center punch the holes.
Unfortunately my 3/16" duplicating punch is dull. We'll order some more tomorrow, maybe not from McMaster.
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