Uni-engineering!

I dunno about q factor... I thought it was the angle the cranks stuck
out from the hub?

That looks like it would do *something* to how riding worked, but I'm
not sure what the affect would be.

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Another Paul, Paul Royle ( i think) has already came up with this, its
main application was for hocky, as the wheel tends to go much faster
than normal playing hocky. it was meant to stop the wheel shake from the
weight of the cranks and pedal. he only mentioned it to me once and i
dont think hes posted about it, and im not sure if hes done anything
about designing/making anything either, he might reply if he reads this
thread,

iain

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I have thought about counterweights, as you mentioned, many years ago. I
think the theory will work. The downside, of course, is all the weight
you'd have to add to the unicycle. I have always assumed the extra
weight would more than cancel out any performance gains you'd get from a
straighter line.

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johnfoss said:

*The downside, of course, is all the weight you'd have to add to the
unicycle. *

The extra weight and something fairly massive swinging aroung to clip
your ankle every once in a while. Ouch!!

And Q-factor is the distance the pedals are from the centerline of the
wheel. A wide hub and cranks that angle out from the hub equals a high
Q-factor. Narrow hub and parallel cranks equals a low Q-factor. In
theory the closer your feet are together (like when you're walking) the
better. But, narrow hubs mean weaker wheels, so there's always a
trade-off. Bicyclists are always looking for a low Q-factor for reduced
knee and ankle stress.

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Oh, I like this idea. Could this also be done with weights on the rim
itself? That would stay out of the way no matter what.
Plus then you could use those nice machines for car tires :-)

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I like the idea of having it on the rim, and with direct drive, there
will always be alignment. But how can you get it to fit with the
spokes?

e39m5

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I believe the addition of an Escher Bracket to each crank could allow
for an "adjustable-q-factor"...
[image: http://scipp.ucsc.edu/~jheimann/assembly.gif]

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maestro8 - Mad Scientists for World Domination

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Id like to look at that diagram but its making me dizzy. I think you
messed up drawing a line somewhere.

e39m5

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That's great.

Imagine if that drawing actually made it to the shop floor!

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Hahaha, "Escher Bracket"....I love it!

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I just found out what Escher is. Now thats something to remember.

e39m5

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I did a little research and haven't found the exact origin of the
"'Trichotometric Indicator Support' (http://tinyurl.com/dn8g8) " but I'm
pretty sure it wasn't an Escher piece.

It was first widely featured by Mad Magazine (as well as several other
print media) in the mid 60's. I remember seeing this figure in a copy
of Mad from the late 80's (since Mad loves to re-print it's own material
over, and over, and over) and have been fascinated by it ever since...

Escher may have nothing to do with the figures in the above diagram, but
his name was the first in my mind when I saw the image.

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