Search found 290 matches

by molybdenum
Jun 03 2018 4:28pm
Forum: E-Bike General Discussion
Topic: Q128C sources?
Replies: 25
Views: 1717

Re: Q128C sources?

You will need to make a core removal tool. This thread has some links to various tools members here have used to unscrew the core: https://endless-sphere.com/forums/viewtopic.php?f=2&t=88303&p=1288267&hilit=q100+cover#p1288267 I used the one similar to that of ntr (bottom of page), but I had to doub...
by molybdenum
Jun 03 2018 11:35am
Forum: E-Bike General Discussion
Topic: Q128C sources?
Replies: 25
Views: 1717

Re: Q128C sources?

I love my Q128 H 201 rpm rear motor. Unfortunately in a moment of stupidity I tackled one hill to many and stripped the gears. The hill was steep and rough gravel about a half mile long. It was too rough to keep my speed up so I assume that the motor got hot enough to soften the plastic gears. I ma...
by molybdenum
May 29 2018 11:04am
Forum: E-Bike Technical
Topic: Bafang G310 geared hub - 11:1 reduction ratio!!!
Replies: 123
Views: 17033

Re: Bafang G310 geared hub - 11:1 reduction ratio!!!

I'm having a closer look at the G310. The specs on the product page mention an OLD of 135mm, yet the diagram shows a whopping 138mm. Which one is correct? The pdf diagram linked through Grin states "OLD 138 mm" in its measurements, which seem to measure outside to what look like lawyer lipped washe...
by molybdenum
May 26 2018 2:28am
Forum: E-Bike General Discussion
Topic: Cant get 1800w 48v ebay brushless motor to turn on
Replies: 3
Views: 423

Re: Cant get 1800w 48v ebay brushless motor to turn on

Perhaps check the brake signal, as this may cut off the motor via the controller when the brakes are applied. The thin yellow wire signals the brake and the accompanying thin black provides the power.
by molybdenum
May 25 2018 9:52pm
Forum: Motor Technology
Topic: Geared Hub Motor - Question on Clutch Mechanism..
Replies: 9
Views: 1448

Re: Geared Hub Motor - Question on Clutch Mechanism..

I'm curious if how one operates the motor could have an impact on clutch wear/failure. Yep. High torque from hammering getaways or from impact hitting potholes/obstructions is what does in the clutches. The high torque jams the roller or sprag into the contact faces of the clutch and deforms them -...
by molybdenum
May 25 2018 11:17am
Forum: Motor Technology
Topic: Geared Hub Motor - Question on Clutch Mechanism..
Replies: 9
Views: 1448

Re: Geared Hub Motor - Question on Clutch Mechanism..

I'm curious if how one operates the motor could have an impact on clutch wear/failure. When the motor is engaged, the rollers become locked between the inner and outer races, causing these parts to rotate in unison. Let's say that you are pedaling hard near the unloaded speed with the throttle engag...
by molybdenum
May 22 2018 6:34pm
Forum: E-Bike Technical
Topic: Bafang G310 geared hub - 11:1 reduction ratio!!!
Replies: 123
Views: 17033

Re: Bafang G310 geared hub - 11:1 reduction ratio!!!

I have found the Q128 a bit fragile even when run at specified power levels and would like to run something a bit more robust. What did you find fragile about the motor itself? Genuinely curious. I guess it's not fair to say yet. I got 6300km out of my first Q128c at 10A 48V before it started to ma...
by molybdenum
May 22 2018 4:08pm
Forum: General Discussion
Topic: BMS Battery two pin Electrical Connector
Replies: 4
Views: 366

Re: BMS Battery two pin Electrical Connector

If you have a question, use their live chat. If live chat isn't open, just keep your eye on it, refreshing occasionally and someone will come online after finishing with another query.
by molybdenum
May 22 2018 9:25am
Forum: General Discussion
Topic: Ebikes and negative media
Replies: 8
Views: 615

Re: Ebikes and negative media

While this is about public rentable escooters rather than ebikes, the idea is the same... reports of people behaving badly riding e-vehicles and creating a public nuisance. The effects of negative publicity surrounding these will undoubtedly trickle down to ebikes and non-car alternative transportat...
by molybdenum
May 21 2018 1:46pm
Forum: E-Bike Technical
Topic: What is better to do it or to buy ready one?
Replies: 7
Views: 514

Re: What is better to do it or to buy ready one?

ebikes are easy to build for the DYIer, but much harder to repair and troubleshoot when things go wrong. Many of the components are sourced overseas and there is little in the way of support should they malfunction. Fortunately, everything you need to to troubleshoot and repair an ebike is available...
by molybdenum
May 21 2018 1:37pm
Forum: E-Bike General Discussion
Topic: hi who has experience with canadian police and ebike spec issue?
Replies: 22
Views: 1070

Re: hi who has experience with canadian police and ebike spec issue?

To look at the history of enforcement in Canada (and Quebec), I searched the Canadian court registries (https://www.canlii.org/en/qc/) using key words and came up with very little. Based on past court proceedings, there hasn't been much in the way of enforcement, and I couldn't find anything regardi...
by molybdenum
May 21 2018 1:04am
Forum: E-Bike Technical
Topic: Hub motor MXUS V3 3K Turbo and hot temperature (Problem solved!)
Replies: 17
Views: 1811

Re: Hub motor MXUS V3 3K Turbo and hot temperature (Problem solved!)

I'm glad you were able to get it working! From previous experience, I know the wire colors vary between manufacturers both for controller and motor wires. I wasn't expecting the V3 mxus to differ from previous versions - well, lesson learned and fortunate that Ianhill had come across this thread to ...
by molybdenum
May 20 2018 8:37pm
Forum: E-Bike Technical
Topic: Bafang G310 geared hub - 11:1 reduction ratio!!!
Replies: 123
Views: 17033

Re: Bafang G310 geared hub - 11:1 reduction ratio!!!

Silly of me to select the wrong motor in the sim :oops: Definitely apples and oranges... Here's the sim comparing the two MG310 motors under my anticipated running parameters. MG310 std vs fstV2.jpg I am wondering about the differences in predicted final temps. Is this the slight difference in effic...
by molybdenum
May 20 2018 6:20pm
Forum: E-Bike General Discussion
Topic: Help - Sine Wave Controllers, which one ?
Replies: 4
Views: 459

Re: Help - Sine Wave Controllers, which one ?

You could look into sinewave controllers sold by es member Powervelocity: https://endless-sphere.com/forums/viewtopic.php?f=31&t=75888&hilit=powervelocity and a review thread: https://endless-sphere.com/forums/viewtopic.php?f=4&t=90536&hilit=powervelocity I've used the 12-Fet version which he upgrad...
by molybdenum
May 20 2018 5:23pm
Forum: Battery Technology
Topic: building battery for 48v 1000w
Replies: 1
Views: 227

Re: building battery for 48v 1000w

These are lipo and are best left for the experts, as you can easily burn your house down if they are mishandled. Treat them nicely and you will get years of excellent trouble free service from them. Never store or charge them (or any other lithium battery) in a place where you wouldn't have a bonfir...
by molybdenum
May 20 2018 1:17pm
Forum: General Discussion
Topic: Ebikes and negative media
Replies: 8
Views: 615

Re: Ebikes and negative media

A lot of ngative media regarding ebikes stems from news reports of people riding like idiots and causing general mayhem. A quick search of cbc.ca revealed only a few short articles. These were mostly about single vehicle (the ebike) accidents and injuries. Nothing was reported regarding charges from...
by molybdenum
May 19 2018 10:45pm
Forum: E-Vehicles General Discussion
Topic: how many 18650 battery do i need
Replies: 9
Views: 1249

Re: how many 18650 battery do i need

The motor you link does not fit your riding style. Direct drive hubmotors produce an electromagnetic cogging effect and are difficult to pedal unpowered. Also, you will need to feed this much too much power to make it 70 miles without an enormous battery and you will need it powered all the time. If...
by molybdenum
May 19 2018 8:41pm
Forum: E-Bike Technical
Topic: Bafang G310 geared hub - 11:1 reduction ratio!!!
Replies: 123
Views: 17033

Re: Bafang G310 geared hub - 11:1 reduction ratio!!!

I might have to try this motor. I've been using the Q128c sourced from BMS battery, as it was the only geared hubmotor around this power level that accepts a cassette. Since I live near Grin, the savings on shipping make this option competitive, tough I'll need to re-lace a wheel. Also nice is the r...
by molybdenum
May 19 2018 5:34pm
Forum: E-Bike Technical
Topic: Hub motor MXUS V3 3K Turbo and hot temperature (Problem solved!)
Replies: 17
Views: 1811

Re: Hub motor MXUS V3 3K Turbo and hot temperature

Is your temp sensor displaying the right temperature? i.e when cold, it should display somewhere near ambient. Does the motor feel hot to the touch when it displays 130+ C? What are you using to display Mxus temp sensor data? Are you using cycle analyst? Temperature sensor gives right value, at gar...
by molybdenum
May 19 2018 1:00pm
Forum: E-Bike General Discussion
Topic: hi who has experience with canadian police and ebike spec issue?
Replies: 22
Views: 1070

Re: hi who has experience with canadian police and ebike spec issue?

lmao, love the pic! Short answer is, they will not pull out a watt meter (to measure electrical power input) or a dyno (to measure mechanical power output) out of their pockets, but... If you fly by at 40 mph or if you eBike looks like this, then yes they might stop you... In USA, I think the legal ...
by molybdenum
May 19 2018 12:58pm
Forum: E-Bike General Discussion
Topic: hi who has experience with canadian police and ebike spec issue?
Replies: 22
Views: 1070

Re: hi who has experience with canadian police and ebike spec issue?

The general consensus is that in most Canadian jurisdictions, police will leave you alone as long as you are not obviously speeding and riding aggressively. I have not heard of any instances of police giving ebike riders a hard time in Canada. Where in Canada do you live? Perhaps those with direct e...
by molybdenum
May 19 2018 4:04am
Forum: E-Bike Technical
Topic: Hub motor MXUS V3 3K Turbo and hot temperature (Problem solved!)
Replies: 17
Views: 1811

Re: Hub motor MXUS V3 3K Turbo and hot temperature

I had a look at your hall-phase wiring and it is identical to what @\/ampa posted in the mxus thread; thus, your wiring is most likely correct. Is your temp sensor displaying the right temperature? i.e when cold, it should display somewhere near ambient. Does the motor feel hot to the touch when it...
by molybdenum
May 19 2018 4:00am
Forum: E-Bike Technical
Topic: Hub motor MXUS V3 3K Turbo and hot temperature (Problem solved!)
Replies: 17
Views: 1811

Re: Hub motor MXUS V3 3K Turbo and hot temperature

I had a look at your hall-phase wiring and it is identical to what @\/ampa posted in the mxus thread; thus, your wiring is most likely correct. Is your temp sensor displaying the right temperature? i.e when cold, it should display somewhere near ambient. Does the motor feel hot to the touch when it ...
by molybdenum
May 18 2018 3:39pm
Forum: E-Bike Technical
Topic: Hub motor MXUS V3 3K Turbo and hot temperature (Problem solved!)
Replies: 17
Views: 1811

Re: Hub motor MXUS V3 3K Turbo and hot temperature

Here is the quote from the original Mxus thread. I'm assuming the hall-phase wiring hasn't changed with the latest Kelly controllers or Mxus motors. Do these match your wiring? How many amps (or watts) does your motor pull when run unloaded? Motors themselves are exceedingly simple and I know of no ...
by molybdenum
May 17 2018 1:17pm
Forum: Items for Sale - Used
Topic: Tesla Cells for sale as wrapped or welded packs
Replies: 52
Views: 6154

Re: Tesla Cells for sale as wrapped or welded packs

Would you consider shipping to a US border address such as MyUS.com. Those of us canucks lucky enough to live near the border could register with myus.com and drive across to collect the package (and declare at border).