Searching \ for '[OT]: Interesting app of a microprocessor' in subject line. ()
Make payments with PayPal - it's fast, free and secure! Help us get a faster server
FAQ page: www.piclist.com/techref/index.htm?key=interesting+app
Search entire site for: 'Interesting app of a microprocessor'.

Exact match. Not showing close matches.
PICList Thread
'[OT]: Interesting app of a microprocessor'
2002\05\22@163011 by Eoin Ross

flavicon
face
www.airtrax.com/images/airtraxwebdownload.rm
This video will have you doing a double-take and wondering "How the @#@# does that work?"

http://www.airtrax.com/products/ATX/atx-e3000.htm
--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads


2002\05\22@175013 by M. Adam Davis

flavicon
face
I couldn't see the video, but I saw the picture of the wheel
http://www.airtrax.com/products/ATX/whatomni.htm

which reminds me of a palm pilot robot with three wheels mounted equally
spaced on a circle with their direction of rotation tangential to the
circle ( imagine nailing three wheels into a disc at the edges of the
disc - turns it into a lazy susan).  They used wheels that had rollers
on them which would allow the wheel to slide along the ground sidways
without moving forward or backward (unless, of course, the wheel itself
was rolling forward or backward.)

Neat stuff.  I doubt this one is rated for highway speeds, though  ;-)

It's fun to think that people are still intent on improving the wheel...

-Adam

Eoin Ross wrote:

{Quote hidden}

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads


2002\05\22@180937 by Walter Banks

picon face
There is a very interesting Wheel Chair base developed
at the Veteran's Administrate Hospital in San Jose based
on this technique.

I saw the prototype about 15 years ago. You could rotate
go forward and sideways or any combination of the three
motions. It was 3 axis joystick controlled. One of the
fun things we did when I visited them was to drive it
down a sidewalk with rotation and string the stick in the
opposite direction. What happened was we were doing pirouettes
as we went down the sidewalk. They at that time had just
patented the base idea.

w..


"M. Adam Davis" wrote:
{Quote hidden}

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads


2002\05\22@183646 by Sean H. Breheny

face picon face
The basic idea for an omnidirectional wheel is not very old but not all
that new, either. I think one of the NASA engineers from the Apollo program
invented something very similar in the 60s or 70s. Other people in my
research group (or, rather, the research group that I belong to :-) work on
the RoboCup competition and use omnidirectional wheels like these. We had a
presentation on their history and mechanics. Apparently the engineer
thought up the idea after reading a passage from the Book of Daniel, where
it talks about some kind of apparition involving an animal which could move
sideways without turning. I don't know the chapter and verse, but it
actually describes (in very little detail) something like what is in this
photo, IIRC! (I'm not claiming that the Bible tells you how to build an
omni wheel, just that you can see where the engineer got the idea from).

Sean

At 05:48 PM 5/22/02 -0400, you wrote:
{Quote hidden}

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads


2002\05\22@194035 by Barry Michels
flavicon
face
Actually, it's in Ezekiel chapter 1.  Starting in verse 15 he describes a
wheel within a wheel.  Verses 12 and 17 mention moving without turning.

{Original Message removed}

2002\05\23@033652 by Morgan Olsson

picon face
I´ve read a book "Ancient technology" that sums up things like this from the bible*), and other old writings, like from india it found a book on flight navigation, and a story written of someone traveling to foreign land where there were some aeroplane combat.  Go figure...
And a store of ancient primary cells found in a cave.  (clay,copper,iron IIRC) For what purpose??
And how come there are thousand years old minings where we see heaps of small cylindrical brokenstone fragments, exactly like from modern diamond drills...?
No machine found, but if we let a modern tractor outside a couple thousand years it will also be gone "without a trace".
We know civilisations can die.  (sickness, war, natural catastrophe...)
Also know our technology has evolved quickly.  Other civilisatins may have both evolved and died quickly.

Hard to believe everything in the book, but it has pictures and references and i could not find anyting wrong...

*) This is done while reading the texts in original language with more open mind and more language knowledge than when the bilbe was translated before.

/Morgan

Hej Barry Michels. Tack för ditt meddelande 01:35 2002-05-23 enligt nedan:
>Actually, it's in Ezekiel chapter 1.  Starting in verse 15 he describes a
>wheel within a wheel.  Verses 12 and 17 mention moving without turning.

--
http://www.piclist.com hint: The list server can filter out subtopics
(like ads or off topics) for you. See http://www.piclist.com/#topics


2002\05\23@040613 by Morgan Olsson

picon face
>The basic idea for an omnidirectional wheel is not very old but not all
>that new, either.

In school i made a special project on wheels, and built a model using this technology in LEGO and some additional mechanics.  Really fun to manuever :)  ~16yr ago.  There was a wheel chair using this technology but i think it was too expensive to be successful.  Also, theese wheels are *very* bad on sand, grass, etc... :/

/Morgan

--
http://www.piclist.com hint: The list server can filter out subtopics
(like ads or off topics) for you. See http://www.piclist.com/#topics


2002\05\23@043816 by Alan B. Pearce

face picon face
>What happened was we were doing pirouettes as we
>went down the sidewalk. They at that time had just
>patented the base idea.

And Airtrax claim to have a patent pending on their wheel. I wonder if
counts as prior art to confound their application.

--
http://www.piclist.com hint: The list server can filter out subtopics
(like ads or off topics) for you. See http://www.piclist.com/#topics


2002\05\23@084831 by Eoin Ross

flavicon
face
Hmmm - so these things are capable of time travel as well????

>>> spam_OUTbmichelsTakeThisOuTspamBARRYMICHELS.COM 05/22/02 07:35PM >>>
Actually, it's in Ezekiel chapter 1.  Starting in verse 15 he describes a
wheel within a wheel.  Verses 12 and 17 mention moving without turning.

{Original Message removed}

2002\05\23@131615 by Walter Banks

picon face
I have my doubts that this would be prior art. The base
was not self balancing. However I bet a bunch of fuzzy logic
pendulum balancers from tragde shows 8 or 9 years ago
might have an opinion on the prior art parts.

w..

"Alan B. Pearce" wrote:

{Quote hidden}

--
http://www.piclist.com hint: The list server can filter out subtopics
(like ads or off topics) for you. See http://www.piclist.com/#topics


More... (looser matching)
- Last day of these posts
- In 2002 , 2003 only
- Today
- New search...