What You'll Need:
4sheets 1-1/2" Fiberglass board, 2'x4', 3.0# density
9 ft. Ribbed aluminum jacket .020
4 ea. 14 ga. 1-1/2 x 1 steel angle
2 ea. hinge with removable pin
2 ea. suitcase latch
2 ea. 14 ga. sheet metal, 8 x 24
2 ea. 14 ga. sheet metal, 1 x 24
Aluminum colored hi-temp silicone
Tools 'n' stuff:
measuring tape
combination square (90º and 45º)
framing square (a big one, like carpenters use)
a big compass (WallyWorld has a cheap one)
(or a nail, some wire, a pencil, and some patience)
scrap 2x4, ripped @ 6.5º
steak knife
wide masking tape
heavy string
poster board
C-Clamps
Tin snips
jigsaw & metal cutting blades
Welder
Getting ready
Working on the Magnum in a vertical position can be a pain, especially when trying to fit the insulation. Gravity has an annoying tendency to make everything end up on the floor. You can lay the Magnum on it's side, turn the area you're working on up, and let gravity help you. Only problem is, it'll squash the insulation.
I overcame this by clamping two lengths of 2 inch angle to my workbench, spaced just far enough apart to fit inside the rolled bead at the ends of the drum. A couple of chocks keep the Magnum from rolling away..
