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Aaron Cake
Administrator
Canada
6718 Posts |
 Posted - Jan 22 2004 : 10:42:32 AM
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The original topic can be found here
I received my new motor (bought off of eBay) last week, and immediately ordered the sprockets and #25 chain needed to install it. All that stuff came on Friday, and I spent Sunday making the new motor mount and installing the motor. I simply cut off the old motor mounting flange, and welded on a flat plate.Incidentally, those were some of the best welds I have ever done. Monday, I reinstalled the battery pack and connected the electronics.
Unfortunately, due to the 3 feet of snow we have, I can't road test it. However, preliminary tests in my kitchen and hallway have shown a major improvement. The new motor is rated 36V @ 350W, but I am only running it on 24V at the moment. The scooter now has a roughly 4:1 gear ratio, instead of the previous 1.5:1. This means that the ample torque from the motor is amplified 4x to the wheel. The scooter now literally jumps when you hit the "go" switch. In fact, a standing start at 24V results in the rear tire spinning, and the front lifting off the ground! As soon as there is good weather, I will post video. 
Next phase is to upgrade to 36V and build a "real" motor controller instead of the 2 speed contactor unit used now...Oh, and I want to put some neon under the scooter deck... 
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gokartmaniac
Apprentice
Germany
105 Posts |
Posted - Jan 22 2004 : 9:14:17 PM
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awsome dude congradulations it looks great post video soon
Seth A. Meredith |
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BEatonNo1
Nobel Prize Winner
USA
1133 Posts |
Posted - Jan 22 2004 : 10:35:01 PM
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do you have problems with the lower sproket scraping when you turn left?
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Nerf Smurf
Mad Scientist
USA
390 Posts |
Posted - Jan 23 2004 : 12:08:54 AM
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Yea, thats cool. and BEaton, do you mean right turn?
P.S. Whats up with You and Neon Aaron? lol! I think you were planing to add it to your go-kart
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Aaron Cake
Administrator
Canada
6718 Posts |
Posted - Jan 23 2004 : 09:48:05 AM
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Yes, the sprocket definitely scrapes on hard turns. If I was thinking when I originally designed the rear forks, I would have made them about 2" wider, and put the sprocket directly on the wheel using large flat washers as spacers. This would have solved several problems actually, including how to lock the wheel to the shaft. I believe that I will soon be building another scooter for a friend, and I will probably use this technique when I make it. That way, she can make tight turns and there will be less moving parts to worry about. However, hers will only be 24V. I need to have some kind of an edge...
As for the neons....Neons are so lame that they are sometimes cool...On a go-kart or scooter they can be neat, but very few cars can pull it off (In my opinion, only the EV1 and Insight can pull of neons).
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cirvin
Nobel Prize Winner
USA
1542 Posts |
Posted - Jan 23 2004 : 3:27:26 PM
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Excellent scooter!
Neon woud be cool, but I woud think it woud lower your range a bit on all the power it woud use. You coud try outting a solar panel on the top so you can leave it in the sun when your are not using it and it will charge a little.
I woud have just put a larger wheel on the scooter so that I coud get a bigger ratio and not have the sprocket dragging.
Overall, I like the neat and tydy presentation. mine woud have that the battries mounted on the lower part of the steering coulumn so I could have more space on the deck for my feet.
Snow is awsome!
http://daxter12.topcities.com |
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n/a
DELETED (Inactive)
21 Posts |
Posted - Jan 24 2004 : 5:16:09 PM
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where are the brakes located?
The Great Jeeo had left this remark.. |
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Aaron Cake
Administrator
Canada
6718 Posts |
Posted - Jan 24 2004 : 11:06:12 PM
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quote:
Excellent scooter!
Neon woud be cool, but I woud think it woud lower your range a bit on all the power it woud use.
Not too worried about it. A small 12" tube will only pull about 250 mA or so.
quote:
You coud try outting a solar panel on the top so you can leave it in the sun when your are not using it and it will charge a little.
Unfortunately, it would take all day to charge enough to move about 100 feet. A large panel would of course charge faster, but we are dealing with the physical constraints of a scooter...
quote:
I woud have just put a larger wheel on the scooter so that I coud get a bigger ratio and not have the sprocket dragging.
Mounting the sprocket closer to the wheel would have the same effect. However, putting on a larger wheel would require a complete rework of the rear end. There's not a lot of space back there.
quote:
mine woud have that the battries mounted on the lower part of the steering coulumn so I could have more space on the deck for my feet.
I thought of that, but I didn't like the look. Also, you don't want the battery weight up high. The center of gravity should be kept as low as possible.
quote:
where are the brakes located?
Brakes are for wusses. Stopping is pre-meditated.
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Kale
Nobel Prize Winner
Canada
795 Posts |
Posted - Jan 25 2004 : 12:50:08 AM
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You should swap the front wheel for a ski and rig up some chains on your back wheel. Scooter-Ski-Doo hybrid?
Actually an electric Ski-Doo thingy would be rather neat, and this time of year there's no lack of snow to try it out in...
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Nerf Smurf
Mad Scientist
USA
390 Posts |
Posted - Jan 27 2004 : 12:08:56 AM
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Thats true but the chains might be a problem to put on the back wheel, wihout taking the back wheel off.
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cirvin
Nobel Prize Winner
USA
1542 Posts |
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Aaron Cake
Administrator
Canada
6718 Posts |
Posted - Jan 27 2004 : 5:17:27 PM
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Of course, the obvious problem with snow is that there is zero ground clearence, and that the wheel is way too small. But then, I didn't really build it for snow.
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Nerf Smurf
Mad Scientist
USA
390 Posts |
Posted - Jan 27 2004 : 8:40:07 PM
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Yea, snow is not solid enought, espeacily for high snow. The back wheel would go into the ice like pressing your finger into sand.
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tim
Mad Scientist
198 Posts |
Posted - Jan 31 2004 : 7:36:38 PM
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been there did all that including converting a gas car to battery 96 volt pullaway current was 400 amps.so i think all you scooter buffs should go out and pick up a rad2go scooter 600 watt motor 24volt and fast and can climb hills like mad ease there only about 400 dollars. it has a nice controller, it pulls away very smooth.
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Aaron Cake
Administrator
Canada
6718 Posts |
Posted - Feb 02 2004 : 2:07:36 PM
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Cool, you've done an EV project. I've been an EV enthusiast basically forever, though have converted anything yet.. Any more info on your conversion?\
Donor car?
Motor?
Controller?
Batteries?
Transmission or direct drive?
I'm really interested in hearing about it. Though for me, 96V is much too wussy...I would go for a much higher voltage, at least 250V. Probably an AC drive system as well. Of course, I'm spoiled driving my Insight (even though it really isn't an EV) and since I have driven an EV1.
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tim
Mad Scientist
198 Posts |
Posted - Feb 03 2004 : 6:52:39 PM
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the ev project i worked on was a 88 yugo with no miles on it and bought it dirt cheap . this was a trial but it worked out for awhile. it was 96v or 120 v system but i went with 96 because of battery weight. i still have the motor but not the controller.i coupled the motor to th spline shaft of the trans added gauges motor mounts and beefed up the single leaf spring in the rear and charger plugs in the rear and also added a pulley to one axle and ran the alternator with the original circuit by a belt. the alt kicked in at about 15 mph. this would keep the charge in the primary battery for lights signals and everything else that ran on 12 v including a 400 watt stereo with the mad powerful speakers. but i eventually broke it down i kept getting sour batterys. i got about 75 miles to a charge.
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Electric Scooter Updates
