Search found 1599 matches

by bowlofsalad
Mar 08, 2016 5:13 am
Forum: E-Bike General Discussion
Topic: building a cargo e-bike for my kiddo
Replies: 15
Views: 648

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...
by bowlofsalad
Mar 06, 2016 4:10 am
Forum: E-Bike General Discussion
Topic: Rear tire punctures
Replies: 5
Views: 419

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...
by bowlofsalad
Mar 05, 2016 2:32 am
Forum: E-Bike General Discussion
Topic: idea for go-baby-go button
Replies: 18
Views: 1028

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...
by bowlofsalad
Mar 03, 2016 8:25 pm
Forum: Battery Technology
Topic: actual 18650 cell anode end dimensions
Replies: 10
Views: 428

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...
by bowlofsalad
Mar 03, 2016 8:10 pm
Forum: Battery Technology
Topic: actual 18650 cell anode end dimensions
Replies: 10
Views: 428

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 ...
by bowlofsalad
Feb 28, 2016 12:56 pm
Forum: Motor Technology
Topic: New Kelly FOC controller series
Replies: 481
Views: 35393

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 ...
by bowlofsalad
Feb 27, 2016 10:34 pm
Forum: Motor Technology
Topic: New Kelly FOC controller series
Replies: 481
Views: 35393

Re: New Kelly FOC controller series

Can these controllers do sensored start and sensorless operation?

Can these controllers sensorless start and sensorless operation?
by bowlofsalad
Feb 24, 2016 6:52 pm
Forum: General Discussion
Topic: How to undo a stuck round thing?
Replies: 8
Views: 258

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...
by bowlofsalad
Feb 20, 2016 1:23 pm
Forum: Items for Sale - New
Topic: Statorade Ferrofluid for motor core cooling experiments, $25
Replies: 28
Views: 3748

Re: Statorade Ferrofluid for motor core cooling experiments,

Whats the estimation time on restocking statorade?

Thanks
by bowlofsalad
Feb 11, 2016 1:57 pm
Forum: Items for Sale - New
Topic: Modular Rebuildable Repairable 18650 battery.
Replies: 60
Views: 4434

Re: Modular Rebuildable Repairable 18650 battery.

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?
by bowlofsalad
Jan 29, 2016 10:09 am
Forum: E-Bike General Discussion
Topic: 9C motor wheelbuilding help in Seattle
Replies: 16
Views: 757

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=B004H1UA9Y&linkCode=a...
by bowlofsalad
Jan 21, 2016 4:58 pm
Forum: Items for Sale - New
Topic: CHEAP NEW ORYGINAL CELLS LI-ION 18650 FROM 1,49$ 2200-3500mAh!
Replies: 642
Views: 122897

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...
by bowlofsalad
Jan 21, 2016 1:56 pm
Forum: Items for Sale - New
Topic: CHEAP NEW ORYGINAL CELLS LI-ION 18650 FROM 1,49$ 2200-3500mAh!
Replies: 642
Views: 122897

Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC 3500mAh

To tumich,
pic1000.jpg
(156.43 KiB) Downloaded 19 times
Instead of typing out SANYO NCR18650GA you use an image hosted on photobucket.com. Why do you do this?
by bowlofsalad
Jan 20, 2016 11:35 am
Forum: E-Bike Technical
Topic: Most silent geared hub motor?
Replies: 22
Views: 2432

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...
by bowlofsalad
Dec 30, 2015 10:10 am
Forum: E-Bike Technical
Topic: Lacing wheel, are my spokes too short?
Replies: 10
Views: 366

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=B004H1UA9Y&linkCode=...
by bowlofsalad
Dec 25, 2015 12:29 am
Forum: Battery Technology
Topic: Walmart Booster Batteries
Replies: 296
Views: 6199

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_tl?ie=UTF8&camp=1789&cre...
by bowlofsalad
Dec 22, 2015 12:43 am
Forum: E-Bike Technical
Topic: Ceramic Bearings vs Steel
Replies: 34
Views: 1640

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...
by bowlofsalad
Nov 20, 2015 4:54 am
Forum: E-Bike General Discussion
Topic: Any Programable, CA compatible sinewave controllers?
Replies: 7
Views: 408

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 controllers ...
by bowlofsalad
Nov 11, 2015 6:14 pm
Forum: E-Bike Technical
Topic: MAC 500/1000W MOTOR Grinding
Replies: 9
Views: 480

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...
by bowlofsalad
Nov 10, 2015 11:17 am
Forum: E-Bike Technical
Topic: MAC 500/1000W MOTOR Grinding
Replies: 9
Views: 480

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 interesting. Before sta...
by bowlofsalad
Nov 04, 2015 12:07 pm
Forum: General Discussion
Topic: 9800mAh 18650s. I want to troll this guy so bad.
Replies: 3
Views: 329

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...