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| Misc Equipment (2108 Posts)
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hr's quest to acquire a Segway
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On 12/3/2001
psYch0Lloyd
wrote in from
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I heard something in the $3000 USD range but it's only available to comercial and industrial use at the moment.
Knucklehead!
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segway
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On 12/3/2001
hugh r
wrote in from
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Actually that thing is pretty cool... could have used one as a tow vehicle at any of the slalom races this past year!
Any idea how much? HR
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segway
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On 12/3/2001 loneskater
wrote in from
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join now the International Segway Racing Assn/Freestyle. be the first to compete and get in on the action. they will need their own board on NCDSA. who will do the first "judo air." who will be the first pro's? what size spacers do the wheels need and will offset axles work at speed? then it will need it's own video game and action figure. the segway goes right over any cone, who needs slalom anyway. 360 til you vomit. i know a kid that can stay on doing 360's for 15 hours or til the battery dies.
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segway
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On 12/3/2001
roger
wrote in from
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Looks like my lawn mower!
There must be a way to get rid of that scooter stick.
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segway
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On 12/3/2001
jay
wrote in from
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I, for one, am extremely stoked for it. I think I might start saving up now in fact!
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Segway HT (human transport)
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On 12/3/2001
psYch0Lloyd
wrote in from
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I guess it's now called the Segway HT and I think hr has got to have one!
Knucklehead!
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ginger
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On 12/3/2001 hc
wrote in from
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just read the time article. they didn't talk much about the energy source, right now it seems like regular nicad powered.
The balancing feature of the 2 wheel scooter is very impressive. a great solution for maneuverablity for a powered vehicle. also a logical extension to Dean's IBOT wheelchair (an amazing chair that climb stairs and balance on two wheels similar to ginger)
looks like skateboarders got a new rival on their hands, first the rollerbladers, scooters, now, the ginger!
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Gin...
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On 12/3/2001
psYch0Lloyd
wrote in from
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...now I'm thinking that the hoverboard is going to be a possibility some day! It's back to the future right now.
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Ginger
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On 12/3/2001
psYch0Lloyd
wrote in from
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My point exactly hc, I posted about Ginger w/the hopes that one day part of this technology will find its way to our sport as well. I just saw it. Wow! I don't know if a skateboarding tie is even necessary. You make the the call:
http://www.time.com/time/
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ginger!
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On 12/3/2001
hc
wrote in from
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thx for update, Alan. For those that don't know what Alan is babbling about, Ginger is supposely a 2-wheel scooter powered by a Sterling engine developed by Dean Kain of DECA research. Rumour has it that the new advancement with the sterling engine will revolutionize the world.
I will hope soon to place my order for a ginger skateboard. :-)
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Ginger
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On 12/2/2001
psYch0Lloyd
wrote in from
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Ginger is supposed to be fully disclosed Monday 12/03/01 on Good Morning America on ABC. This just might be a great example of assistive technology made applicable to the masses.
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gps
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On 11/30/2001 Herbn
wrote in from
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Your GPS is dyslexic;)
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gps
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On 11/29/2001 roger
wrote in from
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I have drove around watching my eTrex, smooth response that I think accurately represented my speed. Very good for calibrating a car's speedometer.
I think all the gps are now twelve channels, some of them have WAAS (wide area augmentation system) for repeatable absolute accuracies of three meters. There are professional systems that use their own local transmitters for very high relative accuracies, less than a centimeter (good enough for cone placement).
Now, what I would really like is to set a transmitter at the top of a slalom course, then walk down the course with a handheld GPS indicating where to place the cones of various courses previously entered into it.
Sometimes good things come from the military.
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GPS
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On 11/29/2001 Glen
wrote in from
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I have the super cheap Magellen handheld that I've use on my boat. I asked the update timing because mine is real slow. It will only track up to 6 satillites at a time too and I guess the newer ones do much more. Mine has had OK repeatability, much better than my old Loran system, but I haven't tried it since the change in the GPS system. I just read a thing online that said the non-differentials now can be as accurate as 6 meters.
My GPS has displayed some erroneous speeds when driving down the freeway. It will show 65-66-65-26-65-63, even when I'm not on the 134.
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gps
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On 11/29/2001
roger
wrote in from
(66.51.nnn.nnn)
There are different update intervals, those used internally for calculations, those used for updating display, and those used for recording paths (aka routes, tracks, etc). Recorded paths can be downloaded and really wish higher sampling rates where available in the low cost units. If you walk down a hill it comes out very smooth, if you ride down with speed it is too "connect the dots"-ish.
The display updates fast enough, a little slower than cyclometers, but very usable. The basic Garmin eTrex updates once a second.
Glen,
I can loan you my eTrex Summit to play with. They are also very good for finding the latitude and longitude of riding locations. If more people had them we could just use coordinates to express the location of a race or session!
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GPS
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On 11/29/2001 Glen
wrote in from
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how many times per second does a GPS update its location?
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Comsumer vs Military GPS units
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On 11/29/2001
hugh r
wrote in from
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Intentional error insertion was minimized by our gov satelites a year or so ago...
I have compared one of my units to a gov issue unit and to other consumer units and have found the speedo functions to be within a couple of tenths of eachother in the 50 - 60 mph range. Keep in mind that the gov units read different portions of the data that streams from the satelites.
The biggest error readings I have experienced have been in relation to altitude, where the difference can be up to 100 ft. Lat/lon readings were close but not dead on. HR
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Panoram
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On 11/29/2001 Duane
wrote in from
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The panoram lets you enter any wheel diameter 1 to 999 mm, and it has a two wheel diameter memory, so I just toggle back and forth between my bike and skate, no re-entry of the numbers. Accuracy is crap if you are sliding at all. If you cant enter anything below 20 in, you will have to do some mental math, probabaly not worth it. Roger has me curious now, I could use a GPS for hiking as well.
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GPS
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On 11/28/2001
roger
wrote in from
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Although consumer GPS do not have good absolute positioning accuracies (because of military restrictions). They do have very good relative position accuracies and their accuracy for measuring velocity is very good, better than any "wheel diameter" based speedometer. Also they do not need constant calibrating. Hell, there at times when the size of my wheels change as I am going down the mountain.
Get a GPS, it's speedometer will be accurate within 0.2mph without any fuss.
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Topeak Panoram
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On 11/28/2001
Iowa Jeff
wrote in from
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I just saw that in the new Nashbar catalog. Looks cool, and it is on sale now for $29.95
Panoram
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speedo
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On 11/28/2001
david
wrote in from
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duane, i also have a bike speedometer and am curious about how to get it working on a board. on my speedometer you need to enter the diameter of the wheel to be able to use the speedometer(as i'm sure with any speedometer) but mine only gives the diametrer in inches and and won't go below 20 inch diameter. did you get around this somehow, or will mine just not work?
thanks
david
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Speedo
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On 11/28/2001 Duane
wrote in from
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I too doubt that GPS would be worthwhile unless on an incredibly long, straight run, and useless if you carve any part of the hill. I have a Topeak Panoram speedo that works on my board and bike both, I used nylon ties and silicone on my board to attach the sensor to the trucks, I just move the display back and forth and plug it in, I bought an extra sensor and leave that mounted. Bought the really small rare earth magnets that Hugh recommended at Radio Shack and glued one to the wheel, they are great. Check out Topeak's web site, the display is great, looks like a miniature dash board and fits the nose of my board nicely. Looks better than Gravity's set-up, easily. the only problem... you find out you weren't going as fast as you thought !
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speedos
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On 11/28/2001 Glen
wrote in from
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First it was spandex now Speedo's.
I would doubt GPS would be real accurate. A non-differential GPS has location errors up to 60'. They would be OK for average speed over a long course but still not the best solution.
I would think the Gravity/bike computer thing would be very accurate if setup correctly. It would probably be more accurate with a larger diameter wheel where error will be lessened.
Or you could guess and do what everyone does, drastically overshoot the speed you were really going. I've seen to many guys at 30mph but claiming 45 mph. Some people at Morro Bay were claiming 25-30mph, the cops radar gun showed 16-18mph.
Don't worry too much about it. Skateboard Speed is equivilent to Fish Size when talked about after the fact.
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board bags for slalom decks
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On 11/28/2001 jg
wrote in from
(12.91.nnn.nnn)
Board bags- best things- the ski board bags. k2 makes a decent one.
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longboard bag
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On 11/27/2001 Repairman Cam
wrote in from
(4.48.nnn.nnn)
once again I had a chance to look around the store (Dick's Sporting Goods) and found a perfect soft bag for my longboard in the golf department! It's a travel cover for golf clubs. Padded inside, plenty of room for at least 2 boards, helmets and gear, little padlock to secure the zipper, padded shoulder strap all for a mere $25.
I'm buying myself one for Christmas!
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