Quote:
Originally Posted by charles Tauber
True enough.
However, if you look at the photo in question, you'll see that the two ends of each bar are not vertically aligned one above the other. A simple statics analysis will show that when offset, as they are, they create equal and opposite forces plus a moment. That moment is what causes the tendency of slick surfaces to slide laterally.
Shortening the bars reduces the likelihood of displacing the two ends vertically since that displacement is being used to reduce the amount of bending required to fit the bar between its two fixed planes.
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Wouldn't two bars bent in opposite directions, one at each end, best address the sliding problem? Like this:
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The first side came out of the mold the way I wanted it (yay), so I bent the other one and it's now drying in the same mold.
Because bending is so much fun and I have a spare set of sides, I'll bend those into the same shape this weekend and see if they agree to be laminated into the real sides.