Geared unicycle dramatically fails alpha testing

Geared unicycle dramatically fails alpha testing

Post by harpe » Wed, 27 Feb 2002 02:21:38


In a dramatic UPD resulting in a literal high-speed face-plant, the hub
of the uni.5 geared unicycle locked up 15 miles into alpha testing. The
owner and crazed inventor, Gregory C. Harper, miraculously retained all
of his face in the accident and seems to have gained a 10% increase in
the diameter of his right knee which was the first part of his time-worn
body to "hit the road". Roars of approval were heard from the 35,000
students at the University of Washington, all of whom seemed to be on
hand to witness the embarassing incident. The inventor, only a few
hundred yards from his place of employment, was seen scurrying off into
the brush.

My apologies for necessarily cancelling the beta-testing tour. When I
get an opportunity to dissect the hub I will post photos of the failure
mode and speculate on the possibility of a remedy. I will spare you all
from viewing photos of my altered knee...you've seen plenty of those.

--
harper - Greg Harper: Frequent Faller (oops)

                -Greg Harper

"It takes twice the man to ride half the bike (one and a half times as
fast, now)."

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Geared unicycle dramatically fails alpha testing

Post by rhyslin » Wed, 27 Feb 2002 02:54:47

Greg,

I'm glad you were not more seriously injured (like by a car).   Is the
leg walk-able?   Have you been to the doctor yet- is there surgery in
your future?

(Hope that is a YES YES NO)

Christopher

--
rhysling - Last of the Mississippi Unicyclists

"I think he uses a spell wrecker." -Greg Harper, Antique Unicyclist

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Geared unicycle dramatically fails alpha testing

Post by harpe » Wed, 27 Feb 2002 03:11:40

Yes. No. No.

It would be a nice gesture on your part to send flowers.

I'm walking with little difficulty. Tomorrow it will be really sore but
my serious problem is always from the neck up.

I think the 440 stainless steel planet shafts galled up and seized
against the planet gears. That was my weak link and, as I had mentioned
before, they are not located accurately and I had to turn down the
shafts by 0.003". This is only a guess so far. I'd have to use hardened
steel as shafts and maybe bronze bushings in the planet gears. Machine
the planet cage off of the axle and press an accurately machined one on
with a keyway.

What the hey. This is the way of the prototype.

--
harper - Greg Harper: Frequent Faller (oops)

                -Greg Harper

"It takes twice the man to ride half the bike (one and a half times as
fast, now)."

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Geared unicycle dramatically fails alpha testing

Post by Animatio » Wed, 27 Feb 2002 03:21:07

Harper,

Sorry you were hurt; I hope you have no major problems from it. I find
it ironic that Chris is telling you to see a doctor ... he never seems
to make it in. Yeah, I know, the doctor wasnt available ... still.
:rolleyes:

Anyway, take care of the knee, and good luck on phase 2 of alpha. :)

I don't have your address so here is one snapped by a friend of mine
with his digital camera:

http://tinyurl.com/18x

Get well,

Lewis

--
Animation - I unicycle in Mississippi too.

Lewis W Beard

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Geared unicycle dramatically fails alpha testing

Post by harpe » Wed, 27 Feb 2002 06:17:16

Lewis-

Thanks for the flowers. The only medical attention I'm going to require
is treatment for depression.

--
harper - Greg Harper: Frequent Faller (oops)

                -Greg Harper

"It takes twice the man to ride half the bike (one and a half times as
fast, now)."

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Geared unicycle dramatically fails alpha testing

Post by cheri » Wed, 27 Feb 2002 09:06:08

Quote:

> *Lewis-

> Thanks for the flowers. The only medical attention I'm going to
> require is treatment for depression. *

:)
:)

Doctor Cherie says "Take two smiles and call me in the morning!"

Hey, at least you are learning something, so not all is lost.  I am sure
there are plenty of us in r.s.u land who are having sympathy pains for
you.

Never give up,
Cherie

--
cherie
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Geared unicycle dramatically fails alpha testing

Post by Jeff Lutku » Wed, 27 Feb 2002 10:17:19

Ouch... that's no good, but glad to hear you're already talking about
possible causes of the problem.  Uni.5.rev_b here we come ;)

Hmm, kinda gives new meaning to an unstable alpha version.

Quote:
> In a dramatic UPD resulting in a literal high-speed face-plant, the hub
> of the uni.5 geared unicycle locked up 15 miles into alpha testing. The
> owner and crazed inventor, Gregory C. Harper, miraculously retained all
> of his face in the accident and seems to have gained a 10% increase in
> the diameter of his right knee which was the first part of his
> time-worn body to "hit the road". Roars of approval were heard from the
> 35,000 students at the University of Washington, all of whom seemed to
> be on hand to witness the embarassing incident. The inventor, only a
> few hundred yards from his place of employment, was seen scurrying off
> into the brush.

> My apologies for necessarily cancelling the beta-testing tour. When I
> get an opportunity to dissect the hub I will post photos of the failure
> mode and speculate on the possibility of a remedy. I will spare you all
> from viewing photos of my altered knee...you've seen plenty of those.

> --
> harper - Greg Harper: Frequent Faller (oops)

>                 -Greg Harper

> "It takes twice the man to ride half the bike (one and a half times as
> fast, now)."

> ------------------------------------------------------------------------
> harper's Profile: http://www.unicyclist.com/profile/426
> View this thread: http://www.unicyclist.com/thread/16595

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