Have you
tried making one out of plywood, or would it not stand up to the heat?
Also, why did you make it 3.5' high?
My box can reach 155+*F. so I have a concern about plywood and fires! Don't want to test it. Even the wiring is from the bottom and external (heat rises away from wires. 3.5" high so that the entire head is inside the box. Heat rises around the hosel on long hoses heads. After sliding the lid shut I insulate the top with a piece of foil covered insulation board to save energy and have small metal squares placed diagonally between the hosels to keep the heat in under the insulation board. Small spaces allow a "chimney effect" also aided by vent holes in bottom. Important part is that at 140* F. twenty-four hour epoxy cures in one hour! Very often I run the box at 105-120* over night. Lower temp. prevents epoxy runs. These can also be prevented by coating susceptible surfaces with any kind of oil. Runs will just peel off. A good tip for the soles of bore through heads.
Arnie
