[2]  How do you guys get the two boxes to slide smoothly

I am looking at 1/4" birch veneered plywood $14 a 48" x 96" sheet - probably
will stain well or look good natural with some trim over the edges - double
wall front for heavy lens.

I was looking at ball bearing drawer slides, but they would probably have to
be countersunk, or built up layers along side them.

I saw a very ugly camera (hope he's not on this list!) that used an old
dresser drawer slide (!).

I was thinking about wood floor wax or teflon spray for lube.

I also wondered how close a fit was really necessary - other than internal
reflection, which I guess can't be discounted, if the front was larger than
the back, light entering the back would have to go 'around the corner' 180
degrees to get to the filmholder. But I guess that's what a reflection is...

I also thought about a black spandex, latex, whatever it's called (I don't
wear the stuff) band encircling the 'joint' between the two boxes, kind of
like a bag bellows I guess, just for a light seal.

Murray


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