| T O P I C R E V I E W |
| Mav80 |
Posted - Jun 01 2011 : 12:24:33 AM
Hello, I was trying to build an electric scooter when I stumbled upon this site and saw the exact kind of scooter i had in mind. I plan on using this motor kit: http://www.monsterscooterparts.com/24-volt-350-watt-motor-controller-throttle-kit.html , which uses an eleven tooth sprocket. Its a 24v 350watt motor. My gear ratio is 5:1. I want to go about 10 miles, for the round trip to the school and back, but coming home it is hilly all the way. I was thinking of buying either 7ah or 10ah batteries, but I'm not sure if the extra money for the 10ah is worth the performance.
I'm only thirteen, so any help is well appreciated |
| 15 L A T E S T R E P L I E S (Newest First) |
| Aaron Cake |
Posted - Aug 08 2011 : 10:13:32 AM
It should only stretch a little after the first few uses, so slotting the motor mounts should do the job. That's what I've always done, anyway. |
| Mav80 |
Posted - Aug 07 2011 : 02:21:01 AM
I finished it wednesday and have been so busy riding it that i didnt get around to posting until now. And the only reason I'm not riding it is because yet another problem popped up, or rather off. Last night I was riding it and suddenly there was a loud pop and I ground to a stop. In the dark it was hard to tell but the chain had popped off. when I got it back to my garage I was able to get it back on, but it was so loose it was just going to keep coming off. Apparently the chain had stretched again, but now, with my grandpa in idaho, I don't have the tools necessary to fix it. One idea I have is to buy a tension sprocket like what bikes have, but those aren't really meant for chain going at this speed. Also they can be pricey, and would probably ship from somewhere so it takes three weeks to get here. Another reason I'm hesitant to move the entire motor again is the possibility that the chain might stretch again. Any Ideas?
Here is a picture of the completed project, though with the chain guard bent
http://i1192.photobucket.com/albums/aa331/mav800/DSCI0224.jpg
The black cylinder on the steering shaft is the "ignition" completed with a red key you put in and turn.
The ride time is about 40 minutes, way better than I expected, with a top speed of around 17mph(27 kph) with a fresh charge. It weighs 45 pounnds and is an awesome scooter overall |
| Aaron Cake |
Posted - Aug 04 2011 : 09:53:39 AM
Looking good...How about a big red "panic" button mount to the middle of the handle bars? |
| Mav80 |
Posted - Aug 02 2011 : 10:46:48 PM
Thanks, Yesterday we added a switch and put the chain on. I rode around the garage for a while until we noticed a strange popping. After some investigation we figured the chain was too lose and was slipping on and off the sprocket. We ended up taking off the motor bracket and putting a wooden spacer underneath it. That tightened it up and now it runs great.
One more thing... We're thinking about adding an emergency switch that shuts off the battery directly, but the setup we have right now is awkward and ugly, so I would like to get rid of it. Of course if it is necessary, I could deal.
Heres a new picture(without the emergency switch)
http://i1192.photobucket.com/albums/aa331/mav800/DSCI0222.jpg |
| Aaron Cake |
Posted - Jul 30 2011 : 10:53:13 AM
Yes! You need to connect that up to a switch (I use a key switch). When those wires are shorted, the controller is enabled. |
| Mav80 |
Posted - Jul 29 2011 : 1:55:51 PM
Yesterday I was working on my scooter with my grandpa when we decided to connect everything and fire up the motor.After carefully checking all the connections, I gave the throttle a twist and... nothing. I checked the connections again, twisted the throttle and nothing again. I looked at the controller and noticed a connector labeled power lock. We think that this might have to be shorted out before the motor will go. I went to the website for the controller to find out more(unitemotor.com)but the entire page was in chinese...
If anyone has had similiar problems with controllers, please let me know what can be done. |
| Aaron Cake |
Posted - Jul 23 2011 : 10:33:30 AM
Actually this week I found a 6 x 2 solid rubber wheel at the local fastener store. The rubber is pretty hard but it won't go flat. 
First though I will order one more pneumatic wheel and then reinforce the tube with another layer using a wheel repair kit. I'll especially reinforce the area around the stem because that's where they seem to fail. I'll also smooth out the hub in that area and protect the stem with a bushing. |
| Mav80 |
Posted - Jul 19 2011 : 01:45:50 AM
If the inner tube is what screwing up might want to consider going to the no-flat, or solid tires. I looked at those for my scooter and I think I remember seeing some 6" ones even. |
| Aaron Cake |
Posted - Jul 16 2011 : 10:38:22 AM
I may have to go to 8" another option is to make my own 6" inner tube. They tend to fail around the valve stem so I could also just buy a new one and reinforce that area. |
| Mav80 |
Posted - Jul 15 2011 : 02:03:32 AM
All the motor stuff finally shipped awhile ago and I was lucky enough to go to Yosemite for a couple nights, which kept me from going crazy trying to track it every second of the way.
About your tire problem, from the little bit of research I've done, it seems that 8 inches is the more standard size. On most sites you can also get wheel assemblies that come with the sprocket and a way to mount it. |
| Aaron Cake |
Posted - Jul 10 2011 : 10:11:35 AM
That's too bad about the motor being delayed. I generally buy my parts from http://www.electricscooterparts.com and they've always been good with shipping (though sometimes a bit expensive).
That said, the rear wheel blew on my scooter a few weeks ago. I've had constant issues with the wheels because they weren't designed for this type of use. So now I need to take the risk and just buy another or try to find better 6 x 2 wheel...which seems to be hard to find.
It may be easier to hinge the top floorboard instead of the bottom. Or, since the batteries really don't need to be accessed all that often, just bolt on the covers. |
| Mav80 |
Posted - Jul 03 2011 : 5:40:50 PM
quote:
Originally posted by Aaron Cake
Looking good! Where you will you be mounting the batteries?
We're going to make a small box out of some scrap aluminum plating from my dad's work, instead of a floorboard running the length of the deck. There will be a hinged door on the bottom of it for easy battery loading.
quote:
One thing I'd be concerned about is the flat plate used to mount the wheels. I think that if you hit a bump or curb while the scooter is leaning, it's going to bend.
Thanks for pointing that out. We will attach another strut to the battery box to keep it from bending like that.
The site I'm buying my motor kit from keeps changing the day it says it will recieve their motor shipments, so it could be awhile before we finally finish this project. |
| Yerboogieman |
Posted - Jun 25 2011 : 9:29:17 PM
The second picture makes it look really great and professional. Nice job. |
| Aaron Cake |
Posted - Jun 25 2011 : 10:15:58 AM
Looking good! Where you will you be mounting the batteries?
One thing I'd be concerned about is the flat plate used to mount the wheels. I think that if you hit a bump or curb while the scooter is leaning, it's going to bend. |
| Mav80 |
Posted - Jun 24 2011 : 12:44:47 AM
here are the pictures finally:
http://i1192.photobucket.com/albums/aa331/mav800/DSCI0192.jpg
(what we really started out with)
http://i1192.photobucket.com/albums/aa331/mav800/DSCI0201.jpg (general overview of deck and wheel setup)
http://i1192.photobucket.com/albums/aa331/mav800/DSCI0198.jpg
(Rear wheel)
http://i1192.photobucket.com/albums/aa331/mav800/DSCI0193.jpg
(front forks)
http://i1192.photobucket.com/albums/aa331/mav800/DSCI0194.jpg
(top of the deck. Its actually an old yield sign that we chopped up)
http://i1192.photobucket.com/albums/aa331/mav800/DSCI0199.jpg
(bottom of the deck with spacers visible) |
