I am not worried that I get injured. <.<
I worry for the others.

What were you trying to do that resulted in broken lungs, head, and spine?
Are you recovered?
Not to make light of your situation, I hope you are better now and sad to hear that happened to you.
As in injuries with AT, I was thinking to fall down and scrapes and cuts and maybe small break the wrist or ankle. Broken spine sounds too serious.

Once I made a four wheeler pedal car and took it down a hill and broke my radius, thumb, and nose, and got a concussion. I also broke my pedal car. But after I healed up, I remade the car cuz I didn't want to think I got beated up by a hill. Perhaps our situations is different, but I don;t want to give up after I get injured.

Once again Sorry to hear that happened to you .

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Life is tough......but it's tougher if you're stupid.

I have a miracle body. ^_^

i've fell from roller blade 12 times today, just because i want to make sure can we stand on AT at high speed. at 13th try, i can. on roller blade, 60 kilometers per hour, 12 consecutive fell, 7 wound, i don't give up, and i succeeded.

if you fight the pain, then you'll achieve something. i know AT can be dangerous. that's why we are discussing about it, so it can be safe and fun.
we're not trying to invent a death-ray here.

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Let's get Kickin' ...whatever that means

We will wait for the news at the flying part.

Well, to be honest I think that that guy who made the "crude" version (with all those good pictures) did a pretty good job.

but if you wanted "professional" version of it, we'd be better off getting some good quality schematics and blue prints, and just going to a sports company, and bringing it up to them.

be like: "Hey, try making these, it will be the new thing for teens, "You WILL make money."

then just get some big popular figures ex "Tony Hawk" to try them or something, then the next thing we know, its AT this and AT that, and everybody is happy!

of course, someone needs to ask "Oh Great" for permission, I think that he should be given all credit for it. (As it is his manga)

Parents are gonna shoot you.

yeah. you're right blitz2o. he's the creator of air trek anyway. but how do we reach him? and we should start putting our ideas together. this thread already reached 90 post, but we still in square one. now i'm searching for the right hydraulics for shock absorbtion. still don't have any lead.

btw, i'm ignoring mamsmilk. he only trying to discourage us anyway.


i've found a website that explain something about hydraulics, and i don't understand any of it. so i put the link right here, so if anybody can figure it out. i'll keep searching for hydraulics at other site.

http://www.thefabricator.com/Articles/Printer_Friendly_Article.c fm?ID=76

Last edited by lightning90 at 1:06 pm, Aug 3 2007

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Let's get Kickin' ...whatever that means

Yo dudes, I'm the guy that made those "crappy ATs." While they are far from perfect, I don't want to hear worthless criticism from anyone until they make better. It does nothing but hamper progress. Now if you want crappy ATs you need to take a look at the first pair I made. xD Even such limited prototypes have taught me more about the physics of ATs than any schematic.

First and foremost, anyone who things they can use a normal shoes needs to toss that idea in the trash and burn it. When it comes to attaching wheels to them even full ankle hiking boots have about as much support as a sandle. Normal inline skates raise your foot about 2-3"s from the ground and have a rather rigid support system. ATs because of larger wheels and potentially a cushioning system are 5" and up. Two inches might not seem like a lot but its more than enough to snap your ankle like a twig if you hit something wrong. Also something to note, the more rigid the boot is attached to your leg, the more stable it will be. You wouldn't think it but that extra hight makes the suckers extremely sensitive in comparison

As to contacting OhGreat about permission, its not needed. If you were to start profiting from selling ATs it might become an issue and a finished product fit for sale is years off. To make these things fully functional is going to take years and costs thousands if not hundreds of thousands of dollars. Its expensive as all hell to have custom parts made and god only knows how much it will costs to make up a functioning motor that will fit into an AT. However thats all towards the end of production, its nothing to worry about at the present. Right now the thing to focus on is figuring out theories of how things will work and then go at it and test each one individually. Then worry about trying to fit it into an AT.

Major parts of an AT:
Wheels
Frame
Boot/support
Suspension

Electrical system:
Motors
Battery/Fuel
Controls

Some of this stuff might seem stupid to go through every detail with but its necessary if you want to get anywhere.

A think that would have to be addressed with the electrical system is that motors that can produce enough energy to propel someone at 20mph is going to generate one heck of a magnetic field which may or may not screw up any sensitive electronics within a foot.
.

I'm no expert on the subject so everything I say is open for discussion, if you guys are really up for trying to make this work I am more than happy to help out in any way I can.

Oh lightning, you prolly want to look into pneumatics instead of hydraulics. Hydraulics are oil filled and have zero give, where as pneumatics are powered by air and can be compressed.

If you really are planning on completing a working air treck, there are some things you need to consider...

1) The motors from Air Gear currently do not exist. There is no motor that can fit inside a roller skate and propel a weight of ~140 pounds more than 25 mph. The current world's fastest RC car can reach speeds of around 140 mph (with plans to run at 200 mph), and it likely weighs under 15 pounds. If you reduce the speed by a factor of 8-10x, you will see that your max speed is not near what the anime air treck can put out. Even if a motor is found, chances are great that it can not fit in every skate from size 7 - 12.

2) Power supply. There is no battery that can fit in the skate and power it for any long amount of time. Nitro is a possible power source, but there would still be a problem of where to store the fuel. There's also the problem of the motor overheating if stored inside the skate.

3) Suspension. The suspension used in Air Gear is practically magic. Current technology will not allow such great suspension. This is a minor point though, since it is also impossible to jump as high as the characters from Air Gear.

4) Wheel size. A four inch wheel is not meant to travel at high speeds. Anybody who hits even a shallow crack in the ground at max speed will be in dire need of medical attention.

5) Difficulty. It's fairly obvious that completing such a device would be difficult. I do not know the demographics of this board, but I doubt there are many engineers. Making exact measurements, calculating torque and speed, and designing the electronics (pressure sensitive speed control?) are not simple tasks, and producing prototypes without having exact blueprints of these is costly. Even small companies usually dedicate thousands of dollars to research for new products.

I don't mean to say that it is impossible to design something similar to an air treck. However, it definitely will not be as versatile in the show, and nobody would be able to master the use of such an inline skate as quickly as Ikki.

Welcome Evil One!!! Sorry what I said about your earlier! We could definitely use your help on this project!

As far as what you said about the distance from the ground, I have been planning to move the wheels to the front and back of the shoe area to keep the bottom of the foot as low to the ground as possible. I plan to mask this by making an over sized boot to envelop the top part as a sort of fender and forming it to look like the contour of the shoe.


I had not thought about the electrical field generated, that is a good point. I had suggested before an analog pressure control in the toes. Your thought on this?

I agree that Pneumatic system is def the way to go and can be charged with foot pressure when the user attaches the boot.

I will have the ProE file by this weekend probably and will forward a Jpeg to you and lightning to look at and comment.

Welcome to the project!


Jay - there is another thread in this forum for you to talk about why this wont work. Please go there and be a Negative Nancy. This thread is for serious planning. If you have nothing to contribute please express this in silence.

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Life is tough......but it's tougher if you're stupid.

jay i hate to break it to you but what you said is obvious and we relised all of what you said a long time ago. and have you really been reading this topic cause what we're trying to make right now is something that at best could be called moving skates not full out air trec but to make them we have to start somewhere ok and as technolgy improves im sure air trec can be a reality.

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we are all of the creed
the creed we worship rules us all
the creed of okutoness forever
that and when the next flight to japan

There is nothing explicitly "negative" in my post. I have read through this thread, and I got the impression (with the mentioning of hydraulic cushioning and an "engine") that you were trying to accomplish something more than simply a moving skate. There is already a motorized skate on the market, and there is soon to be an apparently much smaller motorized skate as well.

What I posted are the realities of the situation. The initial prototype is feasible. However, it sounds as though you plan on making the "final" version much faster with better suspension, so the points I brought up are relevant if you planned on going past a prototype. Thinking about these points now and planning may prevent mistakes later on, like building prototypes only to find out the final version may not be feasible.

I don;t believe the purpose of any of this is to produce an AT ready to hit the production line. At this point I would call it more of a hobby than anything else.

I'm well aware that there is no cost effective electric motor on the market to day that could produce nearly enough torque and fit within the skate. A much more practical approach at this point is to use an external power source such as a small gasoline engine. Use a pair of heavy duty flexible drive shafts to attach them to the back of the skates from a backpack mount. Durability may be an issue but its primary purpose would be to test out powered skates without adding excesses weight to the skates themselves.

Obviously anything seen in the anime has to be toned down drastically. Any suspension system that could be used would just be there to lessen the impact of the skates, as to how practical that really is a different matter. Though a pneumatic system would be much more handy as it could be tuned at any time to function as a soft system to smooth out vibrations to a hard system for heavy impacts.

Your logic on wheel size escapes me, a larger wheel is more stable when hitting a crack than a smaller one. If anything, the fact that most ATs only have two wheels would be more of an issue because that makes them more unstable than anything else.

Engineers are nice and all but they don't built anything, they draw blueprints and do the math. With boundless time and a little tool called google, anyone on the board could do the same and I encourage everyone to try to do so.

vinceasuma:

Don't worry about what the thing looks like, building an AT is near impossible, building something that functions like an AT is more our league. An analog pressure sensor might work but I don't know how they operate. I don;t know that a pressure sensor would work right because if you jump off something you are going to hit it and accelerating right after a jump when you may have landed wrong would be bad. I think a hand switch would be the wisest choice because if you did put in a pressure switch later, you could use the hand switch to calibrate the pressure switch. Depends on how the electrics/mechanics of the power souce function.

glad to see you could make it, evil one. it's me, razious.
about the preasure pad, i know how to control it. when you're on your feet, try bending down a little like ikki, then you could feel the preasure at your feet. i even try it on roller blade at 60 km per hour, and it even help with the stability.

this is gonna cost a lot but i wont care about it. i'm willing to invest all my savings on this project(when we got the schematics and calculations ready ofcourse).

i've asked my friend who just got out of the engineering school and he said he can't help us. he failed all his test. so any engineer in da house?


i'll keep my search on hydraulics, it's crucial for AT when we're jumping btw.
don't want AT to split into pieces on first jump right?


about the jumping and preasure pad part, i think you got a point evil one. if we jump at high speed and AT slows down on a jump, then we'll roll right onto the ground. it's like jumping of a speeding bike, even with wheels under your feet. unlees we could momentarily pause the speeding speed while on a jump. ya know so the speed wont decrease while there's low preasure on the pads. it's just a thought anyway. so be free to smack it to my face if i was wrong.




oh, evil one, i must have skipped the part of pneumatics. i'll be searching for it right away.


err... guys... i know this is kinda emberassing, but can somebody tell me how pneumatics work?

bcoz' i don't know much how pneumatics and hydrauliccs work, i just put whatever i felt would help.
http://www.hoerbiger.com/index.php?id=952&L=1

don't worry, i'm open to criticism.



this is really2 long post. sorry about that. no double posting.
i just finished checking out the link that zerolink gave me.
http://stoptazmo.com/showthread.php?t=21083&page=11

it's on another forum, they mainly solved about wheels and suspension.
don't know wether this would help or not. but i do hope it work.

Last edited by lightning90 at 11:52 pm, Aug 3 2007

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Let's get Kickin' ...whatever that means