I've done all sorts of stuff. Remodeled houses, built furniture, rebuilt engines,and so on. One thing I've never fooled with was electrical wiring. Always a little scared of it. My big garage came with several different weird outlets I didn't use. I don't know what all they were doing in there. I've been wanting to convert my air compressor and table saw to high voltage for years. Had an odd 30 amp 250V outlet. I did some research. The results were popping out the breaker to replace with 20 amp and adding a 6-20 receptacle. Put a new plug on the air compressor and reconfigured the motor. Success! Freed up the 125V 20A outlet in the area. Next project is replacing an unused 125V 30A outlet with a 125V 20A GFCI. I already replaced the 30 amp breaker with a 20 amp while I was in the panel.