This is the view as you begin to slide the two halves of the camera apart. The liner is made with black foam-core glued and taped together for a snug fit. I cut the foam-core with the table saw. It's much easier and I can make quicker and more accurate cuts than trying to do it with an Exacto knife. Besides, I cut myself really bad once while using a box cutter type thing and had to have stitches, so I'm kinda reluctant to use them.
Below, you can see the two halves completely apart. The foam-core liner was glued into the top or lid of the box to make it easier to slide the 2 pieces back together.
Here is the front with an enlarged hole for the pinhole shown. This cuts down on the harsh vignetting that I don't particularly care for. I used a round over bit on the router...I'm really scared silly of that thing, so I usually get my husband to help me with this part. In other words I just let him do it.
Here's another view of the two halves. You can see where I removed the hinges that used to close the box. They no longer fit due to the liner being in the way and I don't need them to keep the box closed any longer.
Oh, and the brown cardboard that you see in the box half on the right hand side is just a spacer to keep the paper flat when the box is loaded.
The box works great! It's one of my favorite conversions so far.