Low temperature wax works extremely well on thin sheets too. you have to make a plate to wax it too so that you can have it out of the machine for heating....then set it in the hot sun (provided your location allows this) or an oven or torch (worst method) and I would think hot lamps would work too.
I've have only done relatively small pieces and these can bet but in ovens at home if necessary but the sun is what I've used in the past.
also used double stick tape and a special super thin tape the machinery tool sales people ....sale....lol.... Don't care for this method as much because of clean up. (although wax is a bit messy it doesn't warp the part badly)
thanks
Michael T.
"If you don't stand for something, chances are, you'll fall for anything!"