Originally Posted by
Michael Roberts
Thanks, MK!
I finally got started on the 4x5RB GG frame today. I chopped and glued the first two layers together. Getting the outside dimensions was easy; the width is the same as the 4x5 film holder, and I set the length at 6 1/8". Then I had to design the inside opening and all the other measures based on my GG dimensions. In this case, the acrylic GG is a little small-- just under 4" and exactly 5", so I went with 3 3/4" and 4 7/8" for the opening. That left me with 1/2" widths for the top, bottom, and flap sides and 3/4 for the baffle side.
I rummaged through my scrap bag of 1/8 and 1/16th basswood for pieces to chop and glue. 1/8 plus 1/16 comes to .1875 depth. ANSI for 4x5 holders is .197 +/-.007. Subtracting the .005 film thickness is .185, so pretty close for landscape work.
Next, I need to add a top layer of 1/16 mahogany veneer, spring anchors, and GG clips....
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