Search found 39 matches

by Golyo
Mar 21 2016 5:34pm
Forum: E-Bike General Discussion
Topic: 800W Q128c commuter build
Replies: 80
Views: 13984

Re: 800W Q128 commuter build

molybdenum wrote:I put the left elbow in and the right elbow out because it seemed to improve spoke tension ratio.
You will have both in and out elbows, otherwise you cannot cross them.
by Golyo
Mar 13 2016 6:07am
Forum: E-Bike Technical
Topic: s12s slcd3 problem
Replies: 21
Views: 1733

Re: s12s slcd3 problem

It turned out that it was all my fault, as I ordered a 72V display. Obviously the description of the item was quite misleading, but still I should have read it better. With the 36/48V display the system works like a charm.
by Golyo
Mar 12 2016 3:15pm
Forum: Battery Technology
Topic: Gearbest Experience
Replies: 9
Views: 867

Re: Gearbest Experience

Wow - that sounds horrible. Was this your personal experience? I have another larger shipment of LG HE4 coming from gearbest soon. I hope it arrives! Anyway, I just figured that people benefit from hearing if sites are actually shipping authentic cells in a somewhat timely fashion. I've seen many p...
by Golyo
Mar 05 2016 3:19pm
Forum: Battery Technology
Topic: Gearbest Experience
Replies: 9
Views: 867

Re: Gearbest Experience

I wouldn't recommend buying a box of matches from Gearbest. It is completely okay with them to not send you something, and to not tell you that they haven't sent it, and to not give back your money, just some credit that you can use on their site. edit: on the other hand nkon.nl is a brilliant vendo...
by Golyo
Jan 02 2016 12:25pm
Forum: E-Bike Technical
Topic: Couple Quick PAS Mounting Questions
Replies: 19
Views: 1443

Re: Couple Quick PAS Mounting Questions

Hot glue is a beautiful help. Switching the display to reverse PAS mode was also easy.
by Golyo
Dec 24 2015 8:17pm
Forum: E-Bike Technical
Topic: s12s slcd3 problem
Replies: 21
Views: 1733

Re: s12s slcd3 problem

I did further experimenting, and with the voltage under 38V the whole system works perfectly. Just over 38V it produces cutouts. I am a beginner, but it screams of LVC. These two videos show the display after boot up with the battery just over and just under 38V. https://youtu.be/v4Imsnk6rG0 https:/...
by Golyo
Dec 22 2015 9:58am
Forum: E-Bike Technical
Topic: s12s slcd3 problem
Replies: 21
Views: 1733

Re: s12s slcd3 problem

This is what happens when I turn it on, and the battery is around 39.2V: https://youtu.be/yyuY73K0iSs This should show a cutout, unfortunately, the display is too dim to see anything: https://youtu.be/CLNyolJCOi0 I have another idea, and I would need someone to check their signal voltage. When I tri...
by Golyo
Dec 22 2015 6:04am
Forum: E-Bike Technical
Topic: s12s slcd3 problem
Replies: 21
Views: 1733

Re: s12s slcd3 problem

Why is your P2 speed sensor pulse set to 6? You have 6 magnets on the spokes with the Hall/Reed sensor? That's how my setup shows the correct speed. When P2 was 0 it did not show speed without power, and other values just gave wrong speed values. I tried different C5 values, but it seems that it do...
by Golyo
Dec 21 2015 12:20pm
Forum: E-Bike Technical
Topic: s12s slcd3 problem
Replies: 21
Views: 1733

Re: s12s slcd3 problem

It was only the speed sensor that I managed to make work. The cutouts persist. Looking at the pretty dim display, it seems it should not be low voltage protection (the battery meter shows a full battery). What other protection can completely turn off the display? I would really appreciate some help ...
by Golyo
Dec 20 2015 3:52pm
Forum: E-Bike Technical
Topic: s12s slcd3 problem
Replies: 21
Views: 1733

Re: s12s slcd3 problem

In another thread, I found that a speed sensor is a must to avoid cutouts, so I installed it. After hours of changing settings, it is working. P2 (phase number) should be set to the correct number even if you have a speed sensor installed. Otherwise, it only works when the motor is under power. Baff...
by Golyo
Dec 20 2015 1:43pm
Forum: E-Bike Technical
Topic: s12s slcd3 problem
Replies: 21
Views: 1733

Re: s12s slcd3 problem

If you have good speed sensor, but turns completely off at loads then you may have bad cells in your pack. Buy a 5 dollar volt meter and check your cells. You may have been overcharging some of your cells, too if you don't have bms to prevent overcharging... 41 volt of the pack doesn't mean each ce...
by Golyo
Dec 20 2015 11:17am
Forum: E-Bike Technical
Topic: s12s slcd3 problem
Replies: 21
Views: 1733

Re: s12s slcd3 problem

The original problem was solved. The PAS wasn't working, so P4 had to be changed to 0. However now I am facing a different problem. I don't have a voltage meter on the battery yet, but it feels like the display cuts out at around 40V first. It can be rebooted, but time and again it will cut off agai...
by Golyo
Dec 20 2015 10:32am
Forum: E-Bike Technical
Topic: s12s slcd3 problem
Replies: 21
Views: 1733

Re: s12s slcd3 problem

motomech wrote:Are you using Lipo?
No. It's a 18650 pack.
by Golyo
Dec 20 2015 7:43am
Forum: E-Bike Technical
Topic: s12s slcd3 problem
Replies: 21
Views: 1733

Re: s12s slcd3 problem

Also note the controller never truly cuts out like maybe a traditional controller do as in your LCD display will always be on even when you run out of battery and should just display zero battery... If you are fully loosing power to your LCD display then its your batterys BMS thats fully cutting ou...
by Golyo
Dec 19 2015 4:48pm
Forum: E-Bike Technical
Topic: Couple Quick PAS Mounting Questions
Replies: 19
Views: 1443

Re: Couple Quick PAS Mounting Questions

I bought the exact same thing. It only works one way. For me, it means I cannot use it, as the magnet disc does not fit under the chainrings.
by Golyo
Dec 19 2015 10:39am
Forum: E-Bike Technical
Topic: s12s slcd3 problem
Replies: 21
Views: 1733

Re: s12s slcd3 problem

Hard to say, the first thought comes to mind is checking your P4 setting, it should be P4=0 if you want throttle to always be "on" as in you don't need to start pedaling before it becomes active etc. Or a more simple way to put it is P4 set to 0 means "american mode". It could be one of those more ...
by Golyo
Dec 19 2015 7:27am
Forum: E-Bike Technical
Topic: s12s slcd3 problem
Replies: 21
Views: 1733

s12s slcd3 problem

Hello all, I have a strange problem. When I tested my configuration about a week ago, the throttle worked OK. Now when I am trying to assemble it, it does not. Parts: S12S controller, S-LCD3 display, Bafang CST motor, 36V battery pack (18650, 31.9Ah). The original problem was solved. The PAS wasn't ...
by Golyo
Dec 06 2015 5:07pm
Forum: Battery Technology
Topic: Newbie, 48V battery pack not charging
Replies: 18
Views: 1199

Re: Newbie, 48V battery pack not charging

Info about the battery, from the link in the OP: Battery Model 48V 20Ah Nominal Capacity (AH) 20ah Nominal Voltage (V) 48V Source Resistance (mΩ about 40 Cell Specification 3.7V 2.3AH 18650 Cell Combination 9-parallel 13-series Cell Quantity (parallel*series) 117 Discharge Cutoff Voltage (V) 41 +/- ...
by Golyo
Nov 30 2015 3:02pm
Forum: Items for Sale - New
Topic: JP spot welder
Replies: 1242
Views: 171032

Re: JP spot welder

Kepler wrote:Yet another JP spot welder build :mrgreen: 13S6P 8)

Built this one for rockyraccoon. He will add his own BMS.
Isn't it a problem that all the juice from the pack has to go through that bottleneck, that I highlighted?
20151129_113236_mod.jpg
20151129_113236_mod.jpg (201.27 KiB) Viewed 1817 times
How thick is the nickel you're using?
by Golyo
Nov 08 2015 5:05pm
Forum: Items for Sale - New
Topic: JP spot welder
Replies: 1242
Views: 171032

Re: JP spot welder

Hi Riba,
an update on the timeline would be appreciated.
by Golyo
Oct 27 2015 3:34pm
Forum: Items for Sale - New
Topic: JP spot welder
Replies: 1242
Views: 171032

Re: JP spot welder

riba2233 wrote:Hi, it should be available for ordering in days maybe a week.
Great news.
by Golyo
Oct 25 2015 2:33pm
Forum: E-Bike General Discussion
Topic: Help me pick some parts (please!)
Replies: 53
Views: 4112

Re: Help me pick some parts (please!)

I know it is out of your budget range, but there might be others like it out there: http://www.ebikes.ca/product-info/stoke.html
by Golyo
Oct 23 2015 4:41am
Forum: Items for Sale - New
Topic: JP spot welder
Replies: 1242
Views: 171032

Re: JP spot welder

Kepler wrote:Here are some shots of my build. Nothing particularly new, but worth posting up another fine JP Spot welder build. :mrgreen:
Just a question: from the picture it is not clear, but I hope that the nickel plates that you soldered the positive cable to cannot short with the batteries in behind them?
by Golyo
Oct 22 2015 5:18pm
Forum: E-Bike General Discussion
Topic: A Much improved ebike spoke calculator,
Replies: 72
Views: 11186

Re: A Much improved ebike spoke calculator,

Thanks for fixing it! Because of it I could order the spokes for my wheel.