Quote:
Originally Posted by Ether
Your parabola plot is correct...
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I found the problem: the
ellipse you plotted was not correct.
The ellipse you plotted was y=sqrt(4-x^2/2)-1.5 (see attachment 1).
The ellipse should be (sqrt(64-2x^2)-7)/2 (see equations #1 and #4 of attachment 2).
The ellipse in attachment 2 is plotted in attachment 3. It is a close (but not exact) fit for the parabola you plotted.
If your rollers are indeed contoured per the ellipse in attachment 1, then they are quite a bit off.
[edit]The good news is, this means a larger radius for your end fastener[/edit]