Reducing Lenticular Sag (after reshuffling the stack)
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If you are like me, I just had to move the shiny protective layer from the front of my TW56X81's screen stack to the rear. This works out rather well, except many have reported a problem with the outer screen "sagging". Below is a pic of this "lenticular sag":
You can see it right in the middle of the screen.
Here is why this can occur. The lenticular layer (which is now the front screen layer after restacking) is very thin and flimsy. With the screen frame laying down on its face for the restacking, the lenticular screen will flex downward due to its weight and gravity, and actually touch the floor. The frame face has the lens stack recessed about 5/16" , and this allows a gap for the lenticular to bow downward into as it is laying face down for the reshuffle. If you then retighten the clamps, the lenticular will be "held" in this position. It is not rigid enough (after uprighting the screen assembly) to try and reflatten itself.
Here is a simple solution to this problem. Find six magazines that are about the thickness of the frame recess and lay them in the pattern below:
Now, it will be impossible to get 6 magazines all the same thickness. Not to worry; place the two thickest in the center row. Remove the screen assembly and lay it face down on top of the magazines trying to center them within the screen.
With the frame laying face down ontop the mags, the magazines will support the center keeping the flimsy lenticular layer from bowing down. The thicker center-row magazines may actually bow the stack up a little. That's OK; because the (now) rear layer (the thick and rigid protective sheet) will flex outward slightly when uprighting the frame; assuring tension of all layers against each other. Just loosen the clamps, then retighten (or reshuffle the stack and retighten). You will end up with a nice, tight, flat lens stack.
