Search found 270 matches

by zro-1
Apr 24, 2018 4:38 pm
Forum: E-Bike Technical
Topic: IP67-spec throttles?
Replies: 3
Views: 91

Re: IP67-spec throttles?

Generally, a hall sensor is going to be safer in the rain than a potentiometer throttle. One option you have is to disassemble a hall throttle and seal off the wired bits with some silicone. Another option is to make a 3-button throttle as I had designed in my build thread , and use IP67 rated butto...
by zro-1
Apr 21, 2018 10:31 am
Forum: Items for Sale - New
Topic: Compact Field Oriented Controller, ASI + Grin, limited run
Replies: 1100
Views: 148239

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

Thanks for that info Justin. If we’re also writing wishes here, then I’d like to add that I’d love to see the connectors move to higo. The big, non-waterproof 5-pin and 6-pin connectors for the halls and cycleanalyst are a bit of a pain to work with when trying to make a clean build and keep the con...
by zro-1
Apr 19, 2018 7:02 pm
Forum: E-Bike General Discussion
Topic: Finished project: Super Light Carbon Ebike
Replies: 4
Views: 307

Re: Finished project: Super Light Carbon Ebike

Very nice build! That bottle battery looks great! I really like how you incorporated the Rosenberger magnetic connector into the top of the bottle. Very fancy! I love that little display you have. Can you share a link to where you got it from? I'm also using a YTW-06 in my bike and have been pretty ...
by zro-1
Apr 19, 2018 6:11 pm
Forum: Items for Sale - New
Topic: Compact Field Oriented Controller, ASI + Grin, limited run
Replies: 1100
Views: 148239

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

I'd like to provide a little constructive criticism on the Phaserunner software. I think the best bet would be to move all this into a help menu available in the software. Hi ZrO and thanks for the feedback. Hopefully you found that there is a help menu with all the parameter info Help.jpg Wow, I f...
by zro-1
Apr 18, 2018 6:32 pm
Forum: E-Bike Photos & Video
Topic: My Sun Trip Bike, Back to Back Tandem Trike with Rowing Generator, Pedals, +Solar
Replies: 44
Views: 1378

Re: My Sun Trip Bike, Back to Back Tandem Trike with Rowing Generator, Pedals, +Solar

Wow, this is a wild coincidence! I just saw a tandem recumbent for the first time in my life this past weekend. I didn't even know they existed before that. Now I see Justin building this... crazy world we live in. This build (and the upcoming tour) sounds so cool. It pretty much incorporates everyt...
by zro-1
Apr 16, 2018 6:49 pm
Forum: General Discussion
Topic: Standard formula for Calculating Ebike Range
Replies: 14
Views: 328

Re: Standard formula for Calculating Ebike Range

I fully agree with this idea, and I have one suggestion which may make it more intuitive and marketable outside of EV enthusiasts. I'm not trying to start an argument here, but I'll include some additional info to back up my suggestion. Instead of making range the only factor, include the efficiency...
by zro-1
Apr 14, 2018 8:59 pm
Forum: E-Bike Photos & Video
Topic: Single-speed track stealth ultralight
Replies: 187
Views: 7832

Re: Single-speed track stealth ultralight

The 3.5Wh/m comes from the entire ride, but in all honesty, since I don’t use the motor at all for some of the ride, I’ll need to adjust that. I am probably using the motor for 7-8 miles out of the total 10. So that’s actually more like 5 Wh/m (35Wh / 7 miles). Which is more like what you’re seeing ...
by zro-1
Apr 14, 2018 10:55 am
Forum: E-Bike Photos & Video
Topic: Single-speed track stealth ultralight
Replies: 187
Views: 7832

Re: Single-speed track stealth ultralight

After a week of commuting I've decided to bump the amps being fed to the motor up to 12. I'd like to get a little more pull from this thing in the few places I do need to use full power. Here's a screenshot of the latest Phaserunner settings for this motor.
ScreenShot.jpg
ScreenShot.jpg (183.59 KiB) Viewed 113 times
by zro-1
Apr 14, 2018 10:52 am
Forum: E-Bike Photos & Video
Topic: Single-speed track stealth ultralight
Replies: 187
Views: 7832

Re: Single-speed track stealth ultralight

Your seat bag would look next level with a push to view voltage display on it Yeah, that would be cool for sure. With such a small pack, I'd be worried about power-draw from hooking up something to display the voltage. I have a wattmeter in my parts bin, but that is always on and draws power from t...
by zro-1
Apr 12, 2018 7:38 pm
Forum: E-Bike Photos & Video
Topic: Single-speed track stealth ultralight
Replies: 187
Views: 7832

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 7:17 pm
Forum: E-Bike Technical
Topic: Xiongda YTW-06 mini hub motor
Replies: 36
Views: 1970

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 6:39 pm
Forum: E-Bike Technical
Topic: Battery and Cradle contact melting!!
Replies: 7
Views: 205

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 9:03 pm
Forum: E-Bike Technical
Topic: Battery and Cradle contact melting!!
Replies: 7
Views: 205

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 8:25 pm
Forum: Battery Technology
Topic: BOSS LEVEL CUSTOM SPOT WELDER
Replies: 334
Views: 18789

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 8:12 pm
Forum: E-Bike Technical
Topic: Xiongda YTW-06 mini hub motor
Replies: 36
Views: 1970

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 8:42 pm
Forum: E-Bike Photos & Video
Topic: Gravel Grinder/Commuter Q128 Carbon
Replies: 22
Views: 834

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 7:44 pm
Forum: E-Bike Photos & Video
Topic: Single-speed track stealth ultralight
Replies: 187
Views: 7832

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 7:13 pm
Forum: E-Bike Technical
Topic: Xiongda YTW-06 mini hub motor
Replies: 36
Views: 1970

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 6:32 pm
Forum: E-Bike Photos & Video
Topic: Single-speed track stealth ultralight
Replies: 187
Views: 7832

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 6:17 pm
Forum: E-Bike Photos & Video
Topic: Single-speed track stealth ultralight
Replies: 187
Views: 7832

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 6:05 pm
Forum: E-Bike Photos & Video
Topic: Single-speed track stealth ultralight
Replies: 187
Views: 7832

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 5:30 pm
Forum: E-Bike Photos & Video
Topic: Single-speed track stealth ultralight
Replies: 187
Views: 7832

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 1:34 pm
Forum: E-Bike General Discussion
Topic: frameset with sliding dropouts and integrated battery?
Replies: 3
Views: 183

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 1:48 am
Forum: General Discussion
Topic: Copenhagen ebike owners/builders
Replies: 3
Views: 319

Re: Copenhagen ebike owners/builders

You guys are also welcome to use my website to host your group. Unlike facebook I don't use any of your personal info for any reason. I also don't serve any ads on my site. I just bit it as a resource for local groups of ebikers to connect with each other. Feel free to check it out at https://ebiker...
by zro-1
Apr 08, 2018 12:33 am
Forum: E-Bike Photos & Video
Topic: Single-speed track stealth ultralight
Replies: 187
Views: 7832

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-...