MAKING AIR TREK
16 years ago
Posts: 80
This will be my last post on the forum, I'm gonna pursue this on my own from now on. The way i see it, you guy's are stuck in the planning stage and i want no more part of it. I have made repeated requests to start an actual build team but nobody seems the least bit interested. But i don't want my last post to be completely useless to you all so first of all, the wheel size depends entirely on your shoe size, obviously a person wearing size twelves could fit much larger wheels than a person wearing a size eight. Also while calculating the theoretical speed of a motor, take into account the circumference of the the wheel. If your motor has a 3200rpm max rotation speed and the circumference is 30cm, than your top speed (with no strein on the motor, ie a person riding it) would be 96000cm a minute or 57.6km/h if my math is correct. This means, bigger wheels = more speed. Again, this is without any additional weight on the motor, you also need to calculate the loss of speed from the riders weight. So though people with larger feet can have larger wheels, the chances are they are also heavier than those with small feet, like children compared to adults. Therefore, the speed gain from the larger wheel may not even affect the outcome of the top speed. But still it's worth a try.
@mcblaise; if you need any help, contact me by email, I'll still be glad to ship the parts if needed.
Later all, thanks for everything and good luck! 😀
I'll shoulder the burden and carry you all up to the sky
16 years ago
Posts: 2
Hello guys! I have been waiting to post on this board for a while, now (I back-tracked the entire thread). One day, I downloaded (by legal means) all of Air Gear and watched it. I enjoyed the series very much, although the ending pissed me off a little. After seeing the anime, I decided that I wanted to make my own version of ATs. After deciding this, I called my cousin, Ryan, who is setting out to become an engineer, and Ryan is also specializing in Propulsion and Alternative Automotive engineering. A few months of research later, we now have a damn good design, and we will be building our prototype very soon. In our design we utilize something commonly known as a gravity clutch (less commonly, although more accurately, it is know as a centrifugal clutch, meaning that it utilizes centrifugal force to work it’s magic) to serve as our acceleration system. By this point, you should have already looked up and became familiar with a “gravity clutch” so I will assume you know what it is, if you haven’t looked it up, do it now, I can wait………….. Now that we have that out of the way… We have the internal clutch attached to the back wheel, once the internal clutch “catches” the external clutch, the external clutch begins to spin with the rest of the device, this, in turn, causes a small electronic speedometer (acting as a sort of dimmer switch) to slowly accelerate the motors (two for each skate; one for each wheel). This eliminates two problems: the falling on your butt problem (no superfast acceleration) and the throttle problem (you control acceleration with you body’s natural motions). All of the “on-skate” devices (the clutch, the motors, and the speedometer) are housed where the two middle wheels would be on regular roller blades and encased in a light aluminum shell with a strip of sheet metal steel on the bottom flat part (for safe grinding). A problem is that once you hit a certain speed, you keep accelerating no-stop, there are three ways to stop this: apply brake pressure ( it’ll get the clutch to slip, causing loss of centrifugal force), go up a hill without accelerating(for the same reason as before), or run into a mattress (it’s gonna stop you). Our power supply (two 24v motorcycle batteries) is kept in a backpack and run through a power converter to cover the voltage down to 6v (the voltage of the motors). There is an emergency power-off switch located on the front-right strap of the backpack.Also before I forget, I don’t know if you’ve ever seen Vert Rollerblading, but those guys get, like, 10 feet of air and land it without a scratch! You shouldn’t have any issues with suspension. The motor we are using is called a “Hercules” (about the circumference of an American half-dollar and the width of about 1.5 inches) they can be picked up at most hobby shops for about $50.00 USD. According to our calculations, this should bring you up to about 8-20 MPH (depending upon your weight) added on to your own (unassisted) speed! I believe that factors in the weight of the batteries. Also, we’ve set the motors up to be what is known as “free magnet” motors, so when you are coasting or moving by your own power, they will charge the batteries a little. Another thing we have to assist in the battery, charging is to have a small photovoltaic cell on the backpack (this of course won’t work during the night).
I found this soon after we finished the design for Project: Hermes (cool name, huh?) while looking for other people attempting similar projects on google.
Most Warmly,
Hermes
16 years ago
Posts: 15
@Hermes: That's really rather awesome! How far are you on the prototype? I believe everyone here would be delighted to see some pictures once you have something done.
I've got some questions as well;
The is the propulsion constant? Because, in a way, the image I have of Air Gear accelerate in bursts based on your own natural propulsion, being a lot easier on the batteries with less constant draining and being able to regenerate (such as you described) more than otherwise.
If not, would it be possible to do so? Of course a prototype is a prototype, but it would be awesome 😛
Unfortunately I'm not tech-savvy enough to discuss the more "technical" parts on a specific level, but it sounds like you've come a lot further than anyone else I've heard of as of yet, so the best of luck, and please keep us updated!

16 years ago
Posts: 47
me too.......
this will be my last post
tokuin is right you are stuck on planning without an actual prototype
btw thanks tokuin!!!!!!!!!!!
and all of you guys
16 years ago
Posts: 5
Hey, i know im a newcomer to this forum, but ive managed to make a prototype(which broke when i did a trick because i used an air cushion instead of decent suspension), the only problem i had though, is that the weight of the batteries pretty much cancelled out motors(they were quite weak:/), so my new idea is, how about making a hydrogen powerplant cell? the smallest one ever made was only 2 inches by 3 and a half, and with enough hydrogen it can pump out 240 volts in per 20 seconds, thats enough to easily get you up to 70 mph. And seeing as its compressed hydrogen, a one litre fuel cell would easily go underneath each of your feet, or in the side of the AT's and last for 3-12 hours. Compressed pure hydrogens pretty cheap, and at the moment its being used as a fuel for cars in Calafornia, and if we did that, we could put the power cell where the third wheel would be, a steel case over the top, and you can grind on it. At the moment im starting to develope a hydrogen power system small enough to fit into an AT, and its only gonna be a matter of time till i have a break through with it, i hope! If anyone on this forum would like to help me build a prototype, I need a few parts, and someone with extensive enginering knowlage, because i havent really got a clue how to fit an external hydrogen cell to a power cell inside a wheel 😀
Alright. I'm onto developing a prototype. I'm going to post progress in my blog. I'm working together with some engineer which made some pretty awesome stuff so I think we will get this done. Cya then.
16 years ago
Posts: 11
Congrats guys on starting to build a prototype. If you guys got any blogs or stuff like that plz post so i can see your progress.I am also building a prototype. with 50 other people. We wanna work together. Who cares who builds it as long as someone builds it right? Anyways, my progress will be posted here
http://z13.invisionfree.com/TheAtProject3/index.php?act=idx
Havent started yet. still getting materials. Good luck all
😀
16 years ago
Posts: 2
@ Goos:
The propulsion is semi-constant. It will run consistently until the clutch slips, and then the only speed you have is the speed you have already built up; that is, until you accelerate under your body's natural energy again.

16 years ago
Posts: 24
@Hermes and MosesHatch
I've been reading this forums for a year and I just started to give up hope and you too gave me a reason to believe my dreams might be able to come true sooner then never. You guys can do it! Tokuin might be able to help you out with stuff but he's claim to never post here again because the helpless and useless chitter chat of the forums. Please don't give up for the sake of the next generation.
I want to help you guys any way passable but I really don't think I would be of much uses...
16 years ago
Posts: 5
FROM TODAY ON I HAVE NO WORRIES OF MONEY SPENDING ON PARTS!
ive just confirmed my sponsership to Alchemy!
395 POUNDS STERLING A MONTH FOR A 2 SHOWS A MONTH!
HAHAHAHAA THIS IS SO GOOD THAT I MIGHT CREAM XD
THIS IS ALMOST LIKE SAYING HAVE A TRUCK FULL OF FREE PARTS.
THERES NO WAY I CANT MAKE EM NOW, ALL I NEEDED WAS MONEY FOR EXPENSIVE PARTS, NOW ALL I HAVE IS 3 DAYS TO WAIT TILL THER DELIVERED THEN 4 DAYS TO BUILD IT THEN WE HAVE THE WORLD FIRST 125 MPH ATS.
HAHAHA WE'VE DONE IT!

16 years ago
Posts: 24
HELL YEAH! YOU FUCKING ROCK DUDE!
16 years ago
Posts: 1
for the wheel you should design the motor with the wheel around that. if you notice in the schismatics of the air trek. the wheels are larger then roller blade wheels. also the wheel is covering the shell of the motor. this would give you more energy if using a electric motor.
you could also have some sort of disk with magnetic plates as the rotary motor. like how a lawnmower's alternator works. just with a motor instead. you could even take and make a generator and motor combo to so when stopping you would use the same principle of electric cars. the induction braking(i believe it is called) with recharge the batteries while the motor moves the user. the more pressure is applied to the 'shoe' the faster the wheel would spin. and you would need a chip to regulate and monitor the speed/pressure/battery....
16 years ago
Posts: 60
^^Don't get too excited Zelgoto. Too many people have claimed to be "working on a prototype" or that they have a "friend" who built some. Coincidentally, nothing has ever come from these claims. In short, there's no way Moseshatch can possibly create 125+ mph ATs... the technology just doesn't exist at this point. Basic reasoning would tell you that if a 5 pound motor can push a person 125+mph, most cars should easily break 400-500 mph.
16 years ago
Posts: 11
for real... the guy who said that is so faking.. >:-(
16 years ago
Posts: 9
i truly think that alot of thing in anime/mangas are possible like air treks, ive also been thinking of automail from fullmetal alchemist, the way to make them is that you just got to open up your mind