Pictures of garage after finish
This solved that problem.

Last summer I took the time to run new copper line from my air compressor (5HP - 80 gal. horizontal tank). The compressor is outside the garage in an insulated, sound reducing enclosure. The tank has a self draining valve for removing water. I used a length of rubber through the wall of the garage.
I do a lot of sand/abrasive blasting in an outside structure and do all my own painting. These pictures will illustrate how I achieved zero moisture in two separate airlines. One line has an automatic oiler and is water free for air tools, the other is oil free and moisture free.
I used 'type L' 3/4" copper which is a lot heavier. There are 4 upright runs with water traps at the bottom. I have not gotten so much as a drop past the second upright. This was built on the bench and then put in place. A lot of soldering that took a few hours to complete but well worth the cost and effort.
There is nothing worse than having a spray gun spit out water or clog blasting equipment with moisture. This solved that problem.
Snapped a few pics of my random strewn tool mess for comparison to what it will look like once I'm able to put everything organized in one clean place.
I realize this is a resurrected thread, but I would advise one thing as the garage fills up.
Put everything on wheels. Casters are your friends. Work tables, tools, storage units. I've just made a heavy duty lumber cart, drill press stand, hanging bike rack all on wheels. Amazing how much it helps.
I am envious of your moveable gantry.
