RE: Accurized M4A3 (75) W
Once I had all the parts sized, cut out, and dry fit several times I got down to construction.
I started by gluing on a .125 x.125 spacer to the bottom edge of the wooden "L". Then added a .040 louver, then a spacer, another louver, etc. until I had all the louvers in place. I then glued on one end cap to stabilize the louvers and then sanded the other ends flush with the wood. I then added the other end cap and the floor of the airbox.
Anywhere the plastic was attached to the wood I used super glue (CA) and all styrene to styrene joints were put together with solvent (Tenax 7). I hoped in this way the joints would be strong and stable.
Once the lower portion of the box was done, I used .020 styrene to skin the front and top section of the box. Finally I went back and added .125 verticle stiffening ribs to the louvers.
Squid