Great idea, Bob! Button rollers on, say, 12" centers, 6'x6' table, torch
center mounted or better yet adjustable along one axis, 90 deg. out from rip
fence. Catch can/pan water filled under torch, exhaust pulling out right
around pan on bottom, just over torch on top. Provided the torch was
solidly attached and you can maintain a good ground, I'd say you have a good
idea in the making. You might even consider utilizing a belt on the rip
fence, with rollers on each end, to prevent binding or dragging.
Best of luck,