I have done may facets of wood working. When I build my lens boards I will copy the Original. My joints may be a little different. I will use a mortise and tenon, because I have the bits to do this easily. Also when I glue up hardwood panels. I know the proper way to do so. I know how to set the crowns of each board so they will not warp after they have been clamped, glued, then cut and sanded to the proper thickness. (center panels)
Then I will use a stile and rail system for the outer framework. I have a friend here with a cabinet shop. I can use his overhead sander, it will make everything nice and flat. Also ee is already set up and making hardwood raised panel doors. I only need to run a few pieces so he wont mind.
Lastly I will use a rabbiting bit to cut the inner panel to fit in the stile and rail frame, glue it all up, clamp it, let it dry. Send it back thru the overhead sander just to get my finished thickness 1/2" +. Then do the edge work with the rabbiting bit to make the lip. Next angle the router table and cut the bevel on the top horizontal edge, then finish. Flat black on the inside a matching finish on the front.
The lens boards look like Cherry (closed grain wood) on the vertical stiles. The center section looks like mahogany (open grain). I plan to make my board more sturdy than the original, I plan to have a top and bottom rail. I will build mine like a raised panel cabinet doors but no detail on the center panel.
I could also make the center panel thinker than the stiles and rails (the frame), and still maintain the factory thickness around the edge. This thicker center section would aid in support of longer glass. The panel could still be flush in the front so it would not be that noticeable.
When I start to make lens boards for this camera I will most likely make 20 or so, when you have everything set up making 20-or 30 is just as easy as one or two. Material cot go up but it will be worth it
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