Search found 1496 matches
- Mar 21 2016 6:39pm
- Forum: E-Bike General Discussion
- Topic: What are the Most Powerful Hub Motors in 2016?
- Replies: 48
- Views: 9124
Re: What are the Most Powerful Hub Motors in 2016?
http://www.electricmotorsport.com/ev-pa ... motor.html Probably worth adding to the list.
- Mar 19 2016 3:21pm
- Forum: E-Bike Technical
- Topic: The wheel-building spoke-lacing thread, post your tips
- Replies: 245
- Views: 50313
- Mar 08 2016 5:13am
- Forum: E-Bike General Discussion
- Topic: building a cargo e-bike for my kiddo
- Replies: 15
- Views: 1605
Re: building a cargo e-bike for my kiddo
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...
- Mar 06 2016 4:10am
- Forum: E-Bike General Discussion
- Topic: Rear tire punctures
- Replies: 5
- Views: 709
Re: Rear tire punctures
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...
- Mar 05 2016 2:32am
- Forum: E-Bike General Discussion
- Topic: idea for go-baby-go button
- Replies: 18
- Views: 2073
Re: idea for go-baby-go button
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...
- Mar 03 2016 8:25pm
- Forum: Battery Technology
- Topic: actual 18650 cell anode end dimensions
- Replies: 10
- Views: 1668
Re: actual 18650 cell anode end dimensions
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...
- Mar 03 2016 8:10pm
- Forum: Battery Technology
- Topic: actual 18650 cell anode end dimensions
- Replies: 10
- Views: 1668
Re: actual 18650 cell anode end dimensions
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 ...
- Feb 28 2016 12:56pm
- Forum: Motor Technology
- Topic: New Kelly pseudo FOC controller series
- Replies: 509
- Views: 72169
Re: New Kelly FOC controller series
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 ...
- Feb 28 2016 12:07am
- Forum: E-Bike General Discussion
- Topic: E Bike Fault Finding
- Replies: 7
- Views: 1449
- Feb 27 2016 10:34pm
- Forum: Motor Technology
- Topic: New Kelly pseudo FOC controller series
- Replies: 509
- Views: 72169
Re: New Kelly FOC controller series
Can these controllers do sensored start and sensorless operation?
Can these controllers sensorless start and sensorless operation?
Can these controllers sensorless start and sensorless operation?
- Feb 24 2016 6:52pm
- Forum: General Discussion
- Topic: How to undo a stuck round thing?
- Replies: 8
- Views: 654
Re: How to undo a stuck round thing?
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...
- Feb 11 2016 1:57pm
- Forum: Items for Sale - New
- Topic: Modular Rebuildable Repairable 18650 battery.
- Replies: 60
- Views: 10314
Re: Modular Rebuildable Repairable 18650 battery.
Are you using galvanized steel for these kits?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.
- Jan 29 2016 10:09am
- Forum: E-Bike General Discussion
- Topic: 9C motor wheelbuilding help in Seattle
- Replies: 16
- Views: 1584
Re: 9C motor wheelbuilding help in Seattle
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=B004H1UA9...
- Jan 21 2016 4:58pm
- Forum: Items for Sale - New
- Topic: CHEAP NEW ORIGINAL 18650 BATTERY CELLS AND PACKS
- Replies: 809
- Views: 241330
Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC 3500mAh
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...
- Jan 21 2016 1:56pm
- Forum: Items for Sale - New
- Topic: CHEAP NEW ORIGINAL 18650 BATTERY CELLS AND PACKS
- Replies: 809
- Views: 241330
Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC 3500mAh
To tumich,
Instead of typing out SANYO NCR18650GA you use an image hosted on photobucket.com. Why do you do this?
Instead of typing out SANYO NCR18650GA you use an image hosted on photobucket.com. Why do you do this?
- Jan 20 2016 11:35am
- Forum: E-Bike Technical
- Topic: Most silent geared hub motor?
- Replies: 22
- Views: 5805
Re: Most silent geared hub motor?
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...
- Dec 30 2015 10:10am
- Forum: E-Bike Technical
- Topic: Lacing wheel, are my spokes too short?
- Replies: 10
- Views: 788
Re: Lacing wheel, are my spokes too short?
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=B004H1UA...
- Dec 25 2015 12:29am
- Forum: Battery Technology
- Topic: Walmart Booster Batteries
- Replies: 296
- Views: 16900
Re: Mounting the Walmart Booster Batteries
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_...
- Dec 22 2015 12:43am
- Forum: E-Bike Technical
- Topic: Ceramic Bearings vs Steel
- Replies: 34
- Views: 3553
Re: Ceramic Bearings vs Steel
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...
- Nov 20 2015 4:54am
- Forum: E-Bike General Discussion
- Topic: Any Programable, CA compatible sinewave controllers?
- Replies: 7
- Views: 865
Re: Any Programable, CA compatible sinewave controllers?
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 controll...
- Nov 11 2015 6:14pm
- Forum: E-Bike Technical
- Topic: MAC 500/1000W MOTOR Grinding
- Replies: 9
- Views: 1050
Re: MAC 500/1000W MOTOR Grinding
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...
- Nov 10 2015 11:17am
- Forum: E-Bike Technical
- Topic: MAC 500/1000W MOTOR Grinding
- Replies: 9
- Views: 1050
Re: MAC 500/1000W MOTOR Grinding
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 interest...
- Nov 04 2015 12:07pm
- Forum: General Discussion
- Topic: 9800mAh 18650s. I want to troll this guy so bad.
- Replies: 3
- Views: 632
Re: 9800mAh 18650s. I want to troll this guy so bad.
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...
- Oct 29 2015 10:18am
- Forum: E-Bike Technical
- Topic: bionx motor freewheel thread
- Replies: 2
- Views: 425
Re: bionx motor freewheel thread
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...
- Oct 28 2015 8:56am
- Forum: E-Bike Technical
- Topic: The SB Cruiser: Amberwolf&Dogman's 2WD CargoTrike&DogCarrier
- Replies: 1030
- Views: 173091
Re: The SB Cruiser: Amberwolf & Dogman's CargoTrike & DogCar
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...