Search found 359 matches

by zro-1
Apr 12 2018 7:38pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Single-speed track stealth ultralight
Replies: 201
Views: 20050

Re: Single-speed track stealth ultralight

I still need to get more miles on this thing before I know for sure, but it does seem to be getting better with the noise. It might be too soon to tell, but I don't think this will ever be considered a quiet motor, but if it continues to get better compared to day 1, I'll be totally happy. The light...
by zro-1
Apr 12 2018 7:17pm
Forum: E-Bike Technical
Topic: Xiongda YTW-06 mini hub motor
Replies: 98
Views: 15486

Re: Xiongda YTW-06 mini hub motor

The maximum efficiency point is 333W on 36 volts / 11.1A on this ~230rpm wound motor pictured. I believe that this motor may handle 350-400 watts continuously on 36 volts. 48 volts might put you in 450-500 watt continuous territory in a 26 inch wheel or smaller. These are just some conservative est...
by zro-1
Apr 12 2018 6:39pm
Forum: E-Bike Technical
Topic: Battery and Cradle contact melting!!
Replies: 11
Views: 993

Re: Battery and Cradle contact melting!!

Yeah exactly. If you pop the plastic part of the cradle that the battery slides on to off of the metal part that was designed for a controller, you'll see the plastic moulding that holds the 4 pins that contact the connectors in the battery. If all 4 are already connected, then the issue isn't there...
by zro-1
Apr 11 2018 9:03pm
Forum: E-Bike Technical
Topic: Battery and Cradle contact melting!!
Replies: 11
Views: 993

Re: Battery and Cradle contact melting!!

I had the same thing happen on my shark pack. Inside the pack, all 4 terminals are live (2+ and 2–), but in the cradle only the outer two pins are wired. So I fixed it by bridging the pins on each side so I had two positive, and two negative pins to match what the pack had. I haven't had any issues ...
by zro-1
Apr 11 2018 8:25pm
Forum: Battery Technology
Topic: BOSS LEVEL CUSTOM SPOT WELDER
Replies: 438
Views: 42094

Re: BOSS LEVEL CUSTOM SPOT WELDER

I just wanted to add that I haven't had any issues with the welder I got. I've now made three 13s2p packs and haven't had a single problem with the welder.
by zro-1
Apr 11 2018 8:12pm
Forum: E-Bike Technical
Topic: Xiongda YTW-06 mini hub motor
Replies: 98
Views: 15486

Re: Xiongda YTW-06 mini hub motor

The controller is available in 24/36/48V. You pick what voltage when you place your order. Shipping is the same as BMSBattery, about $60 to Atlanta, GA USA. The torque you get from either the Q100 or the YTW-06 will depend on a bunch of things, but most specifically, the amount of amps you put into ...
by zro-1
Apr 09 2018 8:42pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Gravel Grinder/Commuter Q128 Carbon
Replies: 22
Views: 1788

Re: Gravel Grinder/Commuter Q128 Carbon

TIL that BMSes will monitor both charge and discharge levels. Up until now I had though that the BMS mostly managed charging and max amps discharge, and the controller managed minimum voltage, but that is wrong. From Vruzend.com: A Battery Management System, or BMS for short, is used to protect your...
by zro-1
Apr 09 2018 7:44pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Single-speed track stealth ultralight
Replies: 201
Views: 20050

Re: Single-speed track stealth ultralight

Xiongda provided me the info on the pole count (8-poles), then I multiplied that by the gear ratio to get the effective pole count. I give the full breakdown of all the specs on the first post of the motor thread. I will definitely post here or in the motor thread about any failures I have and what ...
by zro-1
Apr 09 2018 7:13pm
Forum: E-Bike Technical
Topic: Xiongda YTW-06 mini hub motor
Replies: 98
Views: 15486

Re: Xiongda YTW-06 mini hub motor

Initial motor impression, copied from my build thread: Good bits first: The motor performs really nicely! The motor's power and top speed at 48V is exactly what I wanted. It pulls enough that I don't have to work very hard up the hills, though I do have to work (which is what I wanted—assist, not pe...
by zro-1
Apr 09 2018 6:32pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Single-speed track stealth ultralight
Replies: 201
Views: 20050

Re: Single-speed track stealth ultralight

I wanted to mention, that as far as "seat of the pants" feel goes. This motor feels almost as strong with just 10A as the Q100 did with 18A. I'd say its due to the difference in gearing: 17.5:1 for the YTW-06 vs 8:1 for the Q100. I'm interested in seeing how this thing feels on 12-15A. But I won't t...
by zro-1
Apr 09 2018 6:17pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Single-speed track stealth ultralight
Replies: 201
Views: 20050

Re: Single-speed track stealth ultralight

How many watts are you pulling on this motor? I m interested to know by when the clutch will fail :p I'm only giving the motor 480W. With the Phaserunner, that means on a fully-charged pack (54.6V) it'll only get 8.8A. At nominal voltage, it'll get 10A. I plan on pushing this up to 12-15A which I t...
by zro-1
Apr 09 2018 6:05pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Single-speed track stealth ultralight
Replies: 201
Views: 20050

Re: Single-speed track stealth ultralight

I finally got the bike out for it's maiden test ride in it's new form. I took it around my neighborhood up and down some small hills to get a feel for it. The bullhorn bars are definitely going to take some getting used to. With the shorter stem, the steering is a bit more twitchy than when I had th...
by zro-1
Apr 09 2018 5:30pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Single-speed track stealth ultralight
Replies: 201
Views: 20050

Re: Single-speed track stealth ultralight

I added a remote button for the Phaserunner to the tip of the seat bag where there's a void in front of (or is it behind) the battery. remote-switch .jpg -- The bag's sidewall is made of thick waterproof material with a layer of foam sandwiched between it and the inner lining of the bag. So what I d...
by zro-1
Apr 08 2018 1:34pm
Forum: E-Bike General Discussion
Topic: frameset with sliding dropouts and integrated battery?
Replies: 3
Views: 390

Re: frameset with sliding dropouts and integrated battery?

I came across this manufacturer over on Alibaba that is offering bikes with internal batteries. I didn't notice if any of their models have a sliding track fork. I think they were all using gears and derailure setups in the rear. https://annad.en.alibaba.com/productlist.html?spm=a2700.icbuShop.74.1....
by zro-1
Apr 08 2018 1:48am
Forum: General Discussion
Topic: Copenhagen ebike owners/builders
Replies: 4
Views: 880

Re: Copenhagen ebike owners/builders

EDIT: I took my site down. Disregard this post
by zro-1
Apr 08 2018 12:33am
Forum: E-Bike Build Threads / Photos & Video
Topic: Single-speed track stealth ultralight
Replies: 201
Views: 20050

Re: Single-speed track stealth ultralight

I figured out why my throttle voltage is low. I calculated my throttle source voltage at 5V when it's actually 5.3V coming out of the Phaserunner. That changes the values of the resistors pretty significantly. This is what the correct resistors should be for the Phaserunner when using a 30/60/100 3-...
by zro-1
Apr 07 2018 10:35pm
Forum: Items for Sale - New
Topic: Compact Field Oriented Controller, ASI + Grin, limited run
Replies: 1218
Views: 211579

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

I'd like to provide a little constructive criticism on the Phaserunner software. There is a lot of important info that is provided in the hover-over popups and it's tricky to make it appear, and harder to make it stay visible long enough to read the whole thing without needing to move your mouse off...
by zro-1
Apr 07 2018 9:12pm
Forum: Electric Watercraft
Topic: Inflatable Kayak 200w pv panels with trolling Motor
Replies: 7
Views: 1785

Re: Inflatable Kayak 200w pv panels with trolling Motor

This looks like it's going to be a hoot to put around in. :D
by zro-1
Apr 07 2018 8:56pm
Forum: E-Bike Non-hub Motor Drives
Topic: Kepler Friction drive comes of age.
Replies: 382
Views: 60612

Re: Kepler Friction drive comes of age.

Wow! That Arduino throttle control is fancy! I know you got it all programmed using Visuino, but if you ever need a hand with programming, Kepler, I write semi-regularly in Python, PHP, with a little Javascript and Ruby tossed in. I've never written for Arduino before, but I'd be interested in takin...
by zro-1
Apr 07 2018 6:52pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Single-speed track stealth ultralight
Replies: 201
Views: 20050

Re: Single-speed track stealth ultralight

I got the seat bag battery all welded up and BMS connected. It juuuuuust squeezes into the seat bag with a little room to spare for tucking in the charging cable and an on/off switch to the Phaserunner. bag-battery-1.jpg bag-battery-2.jpg bag-battery-3.jpg bag-battery-4.jpg bag-battery-5.jpg One rea...
by zro-1
Apr 07 2018 6:34pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Single-speed track stealth ultralight
Replies: 201
Views: 20050

Re: Single-speed track stealth ultralight

Thanks so much Kepler! I had not seen your Arduino button throttle thread, but I am definitely going to be checking it out now. I'm a constant tinkerer, so I'm sure I'll be tweaking things on this bike as I go (as I've already been doing with it). I like the idea of using a programmable Arduino to c...
by zro-1
Apr 05 2018 6:12pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Single-speed track stealth ultralight
Replies: 201
Views: 20050

Re: Single-speed track stealth ultralight

So now that I finished making the button throttle, I got it on my bars and was able to finish wrapping them. I also decided to tape the throttle wires cleanly to the rear brake cable so that they disappear and I don't have a separate wire zip-tied to the frame or cable. I have the buttons secured wi...
by zro-1
Apr 05 2018 4:31pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Single-speed track stealth ultralight
Replies: 201
Views: 20050

Re: Single-speed track stealth ultralight

Sweet! I'll look through those. Thanks amberwolf One last pic of the 3-button throttle. I've got it all potted to a piece of plastic. The buttons themselves are IP67 water-resistant rated, but I wanted to seal all the other bits. Plus the potting helps provide support and structure to the whole thin...
by zro-1
Apr 05 2018 12:44am
Forum: E-Bike Build Threads / Photos & Video
Topic: Converting a carbon fiber THYS 209 Rowing Bike to Electric
Replies: 28
Views: 3975

Re: Converting a carbon fiber THYS 209 Rowing Bike to Electric

...And that cogging rowing wheel for the feet. OMG that thing is awesome sauce.
by zro-1
Apr 05 2018 12:39am
Forum: Battery Technology
Topic: Understanding and Using EGO Power+ Batteries
Replies: 78
Views: 16884

Re: Understanding and Using EGO Power+ Batteries

This is guessing, but if these can monitor pack heat, then in a case where you did parallel one full pack with an almost empty pack, wouldn't the heat from the rapid discharge --> charge cause things to cut off?