Making better reels

[Steve]

Great improvement, but who's listening?

Give it a shot, Jason?

[Eric J]

That is awesome! Just thinking about those oblong gears rotating makes my head spin, and makes me want to make some.

[john elder]

Hey, i was told there would be no math!

[Steve]

The language here, starting on pg. 105, is clearer...and no meth. I get the impression that Dr. Lovasz either has never seen or doesn't care about conventional reels, where quaintly-named line "bulging" is a more important concern.

[Jason]

Cool idea but elliptical gears result in varying speed so I wonder if the line would layout evenly?

http://507movements.com/index03.html

[Steve]

...a major disadvantage of the solution is the abrupt endings of the motion
curve, which means there are high acceleration and deceleration around the end points of the
strokes...The optimal mechanism solution for the reel spool mechanism avoids the jerk at the return points
and is simple, because needs a reduced number of parts and requires a reduced size as the
construction is compact.

The study was aimed at producing an even line layout and eliminating line "bulge" at the spool ends. Makes you wonder who the jerk was at the return points.