Sadly, I don't have a plasma cutter. So fabricating my motor mount was done using an angle cutter, 4 or 5 cutting wheels and a grinding wheel. I went down to Escondido Metal supply and sorted through their scrap section. I found some 6" X 6"x 3/16" square pipe. I had them cut me a 9.25" length. Their scrap was a treasure to me :-) .