Hello folks once again. This is going to be the actualy 3rd step in the sequence, but in my first post, i outlined it as my 6th step. From this point on i will have to reffer to this step as the "actualy 3rd step" and the 3rd step on the my first post as the "outlined 3rd step". i hope i didnt confuse anyone, but i thought i should mention this so that people dont get confused when trying to match up the steps.
This step i did now because i had extra time and couldnt pick up materials at Homedepot.
What I used in this step was all from an adjustable filter from homedepot, a needle, and some very thin wire that i had laying around, but had gotten from radio shack. I almost forgot. you need a piece of 2by1 from home depot. The 2x1 actually measures 1.5 by 3/4 inches. I dont know why. just is.
tools used were heavy duty scissors and my sander. Oh yeah a drill screws and a small drill bit will be needed.
So basicly, i took the filter apart, and measured one of the black plastic grids to fit inside my box. the other was measured to fit on top of it but not fit in it. I cut them. Sanded them. then I cut a foamy sheet to the size of the smaller one and stitched it together. then i cut two 2x1's to measure out to be 16inches, no more no less, very exact, and screwed them into the back and front of the box, looking "flat" at a distance of 3/4 inch away from the edge. a good way to do this is by placing both 2x1's on top of each other, and putting clamps on, then screwing them. make sure you do the small drill hole before you actually screw them in so that the wood doesnt split. then do the same thing on the front of the box. teh larger screen grid can be placed on top now. i have not fastened it in yet and dont recomend it because more work needs to be done to the box, so having the screens in place now will only get in your way. here are some pictures to guide you =]

^this one was taken before the foamy sheet was stitched to the small screen. but yes it is in fact the smaller screen.

^the 2x1 clamped 3/4 inch away from the edge before being screwed into place.

^this is what it looks like when i was almost done. as you can see there is a gap where activated carbon can be put. This works becuase heat automatically rises and will be filtered. as long as there is a positive air pressure in the box that will work great.

and finally the last pic. notice here that the wooden bar that is supposed to be on the door side isnt there. this is becuase at that time i wasnt sure how my door was going to go. but now its on.
like i always say. stay tuned. this thing is going to be done sooner or later,
LL