Torch the hole for mounting the motor in the 8" piece of 4x4 angle. Grind off the slag.
Double check that the hole is large enough by putting on the motor and making sure the raised portion in the center goes all the way thru.
You can torch separate holes for the bolts, or do one large, odd shaped one like is pictured.
Torch whichever holes you couldn't access with the punch
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