Endless Sphere

I weigh 200lbs. I'll have to weigh the scooter, but I can lift it myself squatting to pick it up so my guess is around 200lbs for the scooter too. Looking at gearing it for 50-55 then as around town speeds are 45, but people drive 50-55. Probably a jackshaft at the swingarm pivot point and I can red...

Looking to electrify a 150cc Chinese scooter I bought. After welding up a new swing arm, this looks like it would work well.

Excuse me if I'm getting this wrong, but 3s 8ah for $299 doesn't seem to be that good of a deal for EV use.

Wouldn't this be much better than 2 of those?
http://www.hobbyking.com/hobbyking/stor ... _pack.html

Awesome, thanks for that link.

It looks like the race comes with it and is not part of the tube, so I'll just need to make a step just a hair shorter than the bearing height to position it correctly.

Thanks.

I picked this front suspension up cheap: http://m.ebay.com/itm?itemId=251566450323 I've done some quick searches for head tube dimensions and can't seem to find any. I know I can measure when it gets here, but does anybody know of a good link to specs on these pit bikes? Specifically looking for hea...

Building a ghettoblaster/boombox/ipod dock for a friend using a Tripath amp and itworks fine off the 12v PSU I have, but I have some old laptop batteries and figured I'd like to make it portable. Anyone know of a cheap circuit or board available? I did a couple of searches and checked HobbyKing, but...

Thanks for all the great help. I got home Friday and took the time to check over my brakes compared to what I of sheldonbrown.com and my brakes are a good deal better. I started by swapping the front brake from left to right and then I loosened the front brakes adjustment just a little. They are no...

Well the mill isn't up and running yet, but there is an excuse.

A Boxford lathe is getting upgraded with a freq drive and new controls.

Mill was $600. A lot better than the average around here ($1000-1500+). The guy we picked it up from had a chain fall to load it with and a cherry picker was used to unload. A few pieces of blackpipe made rolling it around a bit easier, hey it worked on the pyramids. I may take a community collage c...

AHHhh, a lovely re-claimed bridgport. skys the limit now, did you score any nice tooling with deal? Looking foward to seeing what you build with it! :wink: Let me know when your ready for the grand tour of the hillbilly work shop LOL. BYOB & skeeter dope! Will do, I'm converting over a mini Oberon ...

This one is my buddies, I just picked up a CNC sherline lathe a couple months ago. We sort of have a community workshop going on between us. It did come with a shoebox full of tooling and eBay provided 3 servo motors / drivers. He also has a freq drive for it. Looks fairly tight, but he's grabbing a...

A buddy of mine and I picked this up today, should be fun.

If he made this parody, seems like the "powerblock" music / narration, He has got an awesome sense of humor.....

....If he is serious though, he is a douche.

Hmm, a couple triangular TIGed plates holding the head, top and bottom tubes together may have helped.

According to the site, I saw a can length of 55mm vs. 77mm (180KV vs. 130KV)

180KV is 26mm shorter.

Looks like the 130KV is better overall then. More motor, mass, surface area for heat dissipation, and more gearing friendly.

Thanks Guys.

Is the 130kv going to be the best choice for us (vs. the 180kv) in most cases? I see the 180kv is rated for aprox .75 HP more than the 130KV, or is that just because of the RPM increase?

Thinking of picking up one of these, do these need bearing upgrades yet? I know I should add glue to the magnets.

neptronix wrote:

Lessss wrote:

so no recharging.

Makes you wonder how they charged them the first time eh?!?!

Unicorns, bro.

What do you think their horn is for duh

What about on my lead AGM powered kart? I have 48v it sits at 50 volts as soon as any power is used. I have an AXE4855p controller that is good for 60v before protect kicks in. What if I just used 3-4 of the $10 2600F caps in series with the AGMs? My motor is series wound so no regen, but I get a PM...

What about a couple of them in combination with LiPo to help hold the "hot off the charger voltage", or let someone regen on a fresh battery sooner, or just soak up the regen faster and lessen stress on the battery? If you put a couple in series with the batt would that help? or is a little bit or c...

deVries wrote:What are the outside dimensions of this 8 cell case? Also, will this fit 8 of the 12ah cells?

If these batteries can size/fit for my application, then this is a super offer by you! Thanks for your sincere-ES volunteer efforts!!!

From that ruler it looks like aprox 8" x 8" x 5"

sorry but ES is not only for E-bike but for all vehicules running electricity so i can't draw a bike I think it will be a sphere or wheel anyway this project will take fews month once i have find the better way to have great price everybody can afford one design also will be a little chalenge but i...

As a continuation of Sheriff Jon's idea, What about a picture of the Earth generated by a bike wheel POV kit. That should meet the geeky factor.

Rim and tire could be captured still and Earth overlaid inside.......go to youtube and search POV or LED wheel.

Voltage is voltage, just check the motor and controller you plan on using for the correct amount, or others projects as some can handle more than they are rated.

Quick check. 6x http://www.hobbycity.com/hobbyking/store/uh_viewItem.asp?idProduct=15007 @ $210 for 8s 15ah. @ 20c 300a potential vs. 2x http://hobbycity.com/hobbyking/store/uh_viewItem.asp?idProduct=14996 @ $222 for 8s 11.6ah @ 25c 290a potential Looks like I probably just answered my question, are...