Endless Sphere

http://www.electricmotorsport.com/ev-pa ... motor.html Probably worth adding to the list.

hi all, i want to get a bike like the one attached to transport my kid around. But theyre pretty heavy so i wanted to build it into an e-bike and wanted to get some input and recommendations for that purpose. Do you have any recommendations for type of motor to use for this? I read good things abou...

I've heard something similar about the front tire propping a nail. I haven't seen anything definitive but it seems plausible. I've considered mounting a powered rotating brush and a large magnet to the trike to occasionally clean the roads I frequent since bike lanes are the collection point of mos...

What is being said pretty much fits the bill, I'd just make it so whatever battery/controller combo you were using already could provide the maximum power you'd want without the unusual configuration. What I've used a lot of the time on electric bicycles are three speed switches that limit the maxim...

I communicate with cell suppliers they say that the anode top is absolutely flush with the shrink wrap edge I wouldn't be surprised if I misunderstand, but I am saying that when they say this they might be referring to a flat top cell, the picture of the cell looks like a button top cell and a cell...

Great question and one I've sort of asked myself. So far as I know there are two types of tops, button and flat. It honestly looks like that is an image of a protected cell or something, on the left or top of that cell there is a smaller segment of rectangle which might be a protection PCB, maybe a ...

No. They can't. It's always sensored. Thanks for the response. How I understand it is the way FOC works is that it mostly uses the sensorless measurement back electrocmagnetic field (BEMF) for motor commutation. BEMF is supposed to be a very accurate and faster way to get rotor position. But, if a ...

http://www.ebikes.ca/learn/troubleshooting.html

https://www.youtube.com/watch?v=5G622WDZaHg

Can these controllers do sensored start and sensorless operation?

Can these controllers sensorless start and sensorless operation?

For applying lots of torque to a round thing it's hard to beat a pair of Stilsons (pipe wrench). Great suggestion. To add to this, to gain or increase leverage a way to do is to lengthen the arm of the tool you use to apply force, this is often done easily with a piece of round or square steel tubi...

shawname wrote:

Hillhater wrote:Any testing done on the resistance of the magnets compared to spot welded connections ?

The magnets are nickel plated neodymium. A 1" stack - 15 magnets- shows no measurable resistance on my Klein ohmmeter.

Are you using galvanized steel for these kits?

http://www.wheelpro.co.uk/ A good book on wheel building, excellent ERD measuring technique along with how to make all the tools you need for super cheap and other good bits. http://www.amazon.com/gp/product/B004H1UA9Y/ref=as_li_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B004H1UA9Y&linkCode=a...

Guys, due to before supplier which sometimes typing the name on google. Then prices could grow.. Now is without difference. What I think he is saying is his supplier will find this advertisement and increase his pricing for some reason, I wonder if the fear isn't being removed as a middle man, thes...

To tumich,
Instead of typing out SANYO NCR18650GA you use an image hosted on photobucket.com. Why do you do this?

A large portion of the noise can be eliminated by using a Field-Oriented Controller instead of the usual ones... This makes a larger difference than one hub motor over the other. the loudest one on a FOC makes less motor noise than the quietest one on a trapezoidal controller. I did some direct com...

My favorite ERD measuring method was something I read in a book I bought from http://www.wheelpro.co.uk/ this site. Though, calculating spoke length is more than just the ERD. http://www.amazon.com/gp/product/B004H1UA9Y/ref=as_li_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B004H1UA9Y&linkCode=...

What meter would you recommend to measure the Power? http://www.amazon.com/gp/product/B001B6N2WK/ref=as_li_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B001B6N2WK&linkCode=as2&tag=xbnijgbr-20&linkId=DB5DQMHIJSUQJ3AL http://www.amazon.com/gp/product/B00ORGDQOK/ref=as_li_tl?ie=UTF8&camp=1789&cre...

In normal use they will commonly see higher than the 64°C, and much higher for those running moderate to high performance. Plus common ebike hubbies don't even have axle seals. Is the 64°C limit a good number? I recommend against opening hubmotors any more than absolutely necessary, so can we re-gr...

I was gonna suggest the Phaserunner, but I can't find specific info calling it a sinewave controller, so maybe it isn't. :? https://endless-sphere.com/forums/viewtopic.php?f=31&t=65031 http://www.ebikes.ca/shop/experimental/c-phaserunner.html Still, posts abotu results with it vs other controllers ...

whooo Mr bowlofsalad I'm a newbie, still learning. Right on, nothing wrong with passing along advice to newbies becoming skilled in searching, I make this post when I see a low post count and a question I've seen several times before on this forum. Have stripped motor down and this is what it is do...

Any clues before I "dive in" ? In the upper right corner there is a search box, just beneath it there is a 'Using google search?" check box, be sure to do searches both with and without this check box checked as the results will be considerably different but both potentially interesting. Before sta...

Do itttt! Buy an insanely huge quantity of whatever they claim is their maximum capacity, do a series of discharge tests proving you are measuring a fraction of what they promised, get a full refund per aliexpress policy. Get them to guarantee some degree of capacity if possible. I totally and compl...

In the upper right corner there is a search box, just beneath it there is a 'Using google search?" check box, be sure to do searches both with and without this check box checked as the results will be considerably different but both potentially interesting. Before starting threads or maybe even maki...

I couldn't do it the way I wanted to I kinda need it for tomorrow's work commute (still have CB2 but should have some boxes to take home tomorrow taht won't fit on CB2)). Is it possible to expand the carrying capacity of your trailer and add a hitch to CB2 (I am assuming you haven't already added t...