Search found 347 matches

by thunderstorm80
Sep 13 2017 7:59am
Forum: Battery Technology
Topic: Looking for a battery charger (with balance)
Replies: 14
Views: 1067

Re: Looking for a battery charger (with balance)

I'm not sure what you did to fry your old charger, but it may help you to do what I did, make it more or less impossible to plug the battery into the 12v input leads of my RC chargers. I did this by arranging the andersons different on each end of the charger, so the battery can't plug into the inp...
by thunderstorm80
Sep 13 2017 2:19am
Forum: Battery Technology
Topic: Looking for a battery charger (with balance)
Replies: 14
Views: 1067

Re: Looking for a battery charger (with balance)

10+S.. Use a bulk charger and either a BMS or cell monitors for balancing. This will give you access to cheaper , high current, charging. Otherwise, you are restricted to expensive 10-14s balance chargers. I do not necessarily must have 10S support. I am fine with 6S. I am trying to find a charger ...
by thunderstorm80
Sep 12 2017 7:43am
Forum: Battery Technology
Topic: Looking for a battery charger (with balance)
Replies: 14
Views: 1067

Looking for a battery charger (with balance)

Hi, After toasting my Turnigy 1-6S charger after mistakenly plugging the full battery voltage to it's output leads, I need a new charger. A friend recommended the icharger 1010b+. They have in fact quite nice products, but I now worry as those things are totally not fool proof: (we all make mistakes...
by thunderstorm80
Sep 05 2017 10:58am
Forum: E-Bike Technical
Topic: Surly black floyd fat-tire: Lowest tire pressure?
Replies: 4
Views: 783

Surly black floyd fat-tire: Lowest tire pressure?

Hi, I have just finished a new E-fatbike build, which uses Crystalyte TC4080 as the front motor. Let's put a side the front/rear discussions and why I chose the TC4080 - I want to focus on the tire pressure: The tires are Surly black floyd 26x3.8 (or more closer to 4.0) on 80mm rims. The max pressur...
by thunderstorm80
Sep 04 2017 8:54am
Forum: Items for Sale - New
Topic: Compact Field Oriented Controller, ASI + Grin, limited run
Replies: 1213
Views: 208361

Re: Compact Field Oriented Controller, ASI + Grin, limited r

I am message number 1000 on this thread!!!!!! :D :D :P :P Well, what I wanted to ask is about the upper voltage cut. I am running a system of 3.3*25 = 82.5V 20Ah A123 prismatic cells. (3.6V@cell fully charged for a total of 90V, but I do not charge them more than 3.5V@cell) The highest upper voltage...
by thunderstorm80
Sep 04 2017 6:49am
Forum: E-Vehicles General Discussion
Topic: How to control 2 DD motors independently on a 2AWD bike?
Replies: 13
Views: 1583

Re: How to control 2 DD motors independently on a 2AWD bike?

I use a gearmotor in the front, so no regen there. I use a brake lever to control rear regen so it is totally natural. I don't expect to apply full throttle in the rain. Use less throttle. Test things out, they don't always work the way one expects. If you really want independent control, use a thr...
by thunderstorm80
Sep 02 2017 2:59pm
Forum: E-Vehicles General Discussion
Topic: How to control 2 DD motors independently on a 2AWD bike?
Replies: 13
Views: 1583

Re: How to control 2 DD motors independently on a 2AWD bike?

I have a 2WD with a pair of PhaseRunners on the Bonanza linked in my sig. It works quite well. They are torque control, so almost everything you read that others have done won't apply to your situation. Don't overthink it, it is fun to consider all the different possibilities, but it gets very comp...
by thunderstorm80
Sep 02 2017 2:46pm
Forum: E-Vehicles General Discussion
Topic: How to control 2 DD motors independently on a 2AWD bike?
Replies: 13
Views: 1583

Re: How to control 2 DD motors independently on a 2AWD bike?

I just use separate throttles, one on right and one on left of handlebars. On SB Cruiser (trike), since the motor wheels are on left and right, the throttles also control left and right (helps with turns, among other things). The ebrakes (regen left, active braking right, because the controllers ar...
by thunderstorm80
Aug 31 2017 9:39am
Forum: E-Vehicles General Discussion
Topic: How to control 2 DD motors independently on a 2AWD bike?
Replies: 13
Views: 1583

Re: How to control 2 DD motors independently on a 2AWD bike?

Teklektik covers this in his build thread: https://endless-sphere.com/forums/viewtopic.php?f=6&t=36959 Cool build! He used a switch to control which is the primary motor at a given time, but, I don't want to have any preset switches: You may forget which state it was on a critical moment and find y...
by thunderstorm80
Aug 31 2017 8:16am
Forum: Items for Sale - New
Topic: Compact Field Oriented Controller, ASI + Grin, limited run
Replies: 1213
Views: 208361

Re: Compact Field Oriented Controller, ASI + Grin, limited r

"Level 3 access" discussion: I saw in few posts, that people who get strange behaviours can "reset" their Phaserunner by allowing level 3 access, and than uploading an .xml file which Justin uploaded. This indeed solves the problem, but creates two other problems: It doesn't really tell us what was ...
by thunderstorm80
Aug 31 2017 7:59am
Forum: E-Bike Technical
Topic: New 2017 updates to ebikes.ca motor simulator to try out
Replies: 69
Views: 22738

Re: New 2017 updates to ebikes.ca motor simulator to try out

2. What about adding the Phaserunner to the controller's list? Since both the phase current and battery current are not fixed but user configured, it didn't make any sense to have a default in there. Anyone with a phaserunner can just use a custom controller and set the phase amps and battery amps ...
by thunderstorm80
Aug 30 2017 8:01am
Forum: E-Bike Technical
Topic: New 2017 updates to ebikes.ca motor simulator to try out
Replies: 69
Views: 22738

Re: New 2017 updates to ebikes.ca motor simulator to try out

This is so awesome Justin. The first-order heat transfer model was significantly incorrect at times. I remember you said that the heat transfer model is for DD motors and not for geared. Is it still the case? Here are my takes: 1. There is still a significant overheating time inconsistency between t...
by thunderstorm80
Aug 30 2017 7:15am
Forum: E-Bike Technical
Topic: Front hub motor + Rigid carbon fork = dangerous ?
Replies: 10
Views: 1054

Re: Front hub motor + Rigid carbon fork = dangerous ?

Dangerous, but doc that screws your collarbones back together will love the billing. Almost as bad, any fork that puts lightweight as the foremost design goal. Even steel can be lightened up too much to be a good motor fork. Thanks, but I am already convinced carbon-fork is a bad idea... I will pro...
by thunderstorm80
Aug 30 2017 4:33am
Forum: E-Vehicles General Discussion
Topic: How to control 2 DD motors independently on a 2AWD bike?
Replies: 13
Views: 1583

How to control 2 DD motors independently on a 2AWD bike?

Hi, I know it's possible to split one throttle signal output from a single CA and send it to two motors, but the problem is that not all situations were meant to apply equal torque both at the front and the rear wheels. For example: At uphill takeoffs, you would want to have more torque on the rear ...
by thunderstorm80
Aug 30 2017 4:18am
Forum: E-Bike Technical
Topic: Front hub motor + Rigid carbon fork = dangerous ?
Replies: 10
Views: 1054

Re: Front hub motor + Rigid carbon fork = dangerous ?

Why would you want a carbon fork? It's main advantage is light weight, which will be completely negated when you put a massive DD motor in it. Surely, a steel fork would be stronger and cheaper? I was interested in a carbon fork because I had opportunity to buy a new one for practically nothing, an...
by thunderstorm80
Aug 29 2017 7:38am
Forum: E-Bike Technical
Topic: Front hub motor + Rigid carbon fork = dangerous ?
Replies: 10
Views: 1054

Re: Front hub motor + Rigid carbon fork = dangerous ?

Too many factors to say for certain that it would be suitable. I would select a disc brake fork for starters as they are typically made much stronger to begin with and could handle the torque arm you need. Also, does your frame allow a tapered steerer tube and concerns exist as to how long is the h...
by thunderstorm80
Aug 29 2017 6:23am
Forum: E-Bike Technical
Topic: Front hub motor + Rigid carbon fork = dangerous ?
Replies: 10
Views: 1054

Front hub motor + Rigid carbon fork = dangerous ?

Hi, I have the opportunity of sourcing out new but unused rigid carbon forks that came off new road bikes. I think to use one for a road bike with a DD motor as an assistant motor, but also as a brake on descents. The motor is from the family of the 9C+. The tire is wider than a road tire, with dime...
by thunderstorm80
Aug 15 2017 2:14am
Forum: E-Bike Technical
Topic: How to simulate two identical motors using Grin's Trip-Sim
Replies: 0
Views: 204

How to simulate two identical motors using Grin's Trip-Sim

Hi, I know the older and well known Motor-Simulator can do so, but it doens't give you almost any freedom when simulating regen conditions, (only when you are beyond the back-emf voltage of the battery), and it's also incorrect when trying to simulate regen below that steady state regen-speed. On th...
by thunderstorm80
Aug 08 2017 5:57am
Forum: Motor Technology
Topic: Wye & Delta connections - a bit of a noob question
Replies: 1
Views: 287

Wye & Delta connections - a bit of a noob question

Hi, As I understand, in a DC brushless motor, at each instant 2/3 coils (A & B) are being energized while the third rests. (One attracts the magnets, the second repels (but both create force in the same direction) , and the third rests) This is very easy to understand on a Wye connection: The third ...
by thunderstorm80
Aug 01 2017 1:45am
Forum: E-Bike Technical
Topic: Front hub motor quick releasable?
Replies: 3
Views: 407

Re: Front hub motor quick releasable?

If you say that the threads are having wear and tear with every lock/unlock, then I guess that the only closest to quick-releasable motor is Grin's Grinhub, which uses the axle-through method. And, as far as I know - it's the only motor on the market to be axle-through. I have the GrinHub on one of ...
by thunderstorm80
Jul 31 2017 8:47am
Forum: E-Bike Technical
Topic: Front hub motor quick releasable?
Replies: 3
Views: 407

Front hub motor quick releasable?

Hi, As I often take my E-bikes for trips far from home, which requires mounting them on a standard car rack (SARIS BONES), I find it really hard to lift up and down the combined heavy weight of the bike+motor+battery. I already have a practical method of making the battery quickly removable, but I h...
by thunderstorm80
Jul 18 2017 7:23am
Forum: E-Bike Technical
Topic: Rim received with dent marks - Can it still be used/fixable?
Replies: 4
Views: 536

Re: Rim received with dent marks - Can it still be used/fixa

Get a life, Man! Can't you do anything except complain about Luna on this Forum. I understand it's the home for Luna haters and Trolls, but frankly I'm sick of it. So you have a rim with a small ding in the rim, and a few scratches. It's not the end of the world as we know it.. I believe Luna sent ...
by thunderstorm80
Jul 17 2017 2:34pm
Forum: Vendor Relations Corner
Topic: Problems with Lunacycle - GOT DENTED RIM
Replies: 31
Views: 3853

Re: Problems with Lunacycle - GOT DENTED RIM

Well if it is a build for your customer, it's obviously not acceptable... No customer is going to accept a wheel all banged up. Indeed. I just think if I can use that rim on another build for myself since I am not going to contact them again and so I prefer if that money wouldn't go to waste. (I ca...
by thunderstorm80
Jul 17 2017 2:24pm
Forum: E-Bike Technical
Topic: Rim received with dent marks - Can it still be used/fixable?
Replies: 4
Views: 536

Rim received with dent marks - Can it still be used/fixable?

Hi, If you are interested in the full story, it is here, and it regards LunaCycle: https://endless-sphere.com/forums/viewtopic.php?f=46&t=89167#p1305619 Since that rim came so late than expected, I was unpacking it and immediately went to lace it and place it on the truing stand, and only when start...
by thunderstorm80
Jul 17 2017 2:16pm
Forum: Vendor Relations Corner
Topic: Problems with Lunacycle - GOT DENTED RIM
Replies: 31
Views: 3853

Re: Problems with Lunacycle - GOT DENTED RIM

Really you went that far without noticing that? Sure you didn't drop it and blame the seller? Pretty sure Luna regrets having you as a customer too. Two sides to every story. You mean I dropped it multiple times, on both sides, and at same time was stupid enough to send a picture of it laced on a h...