Search found 213 matches

by Rube
Apr 18, 2018 5:32 am
Forum: Motor Technology
Topic: Neumotor 8057/75 middrive project, belt drive, adding halls, 10kW+
Replies: 53
Views: 3641

Re: Neumotor 8057/75 middrive project, belt drive, adding halls, 10kW+

Hi Maddin, thanks for posting, quite an inspirational build. Interesting use of adhesive. Couple of questions if you don't mind, did you include a 'fence' on only one side of the pulley to aid machining? No need for a fence on the second side? Looking at the bolt pattern on the swing arm, I'm wonder...
by Rube
Apr 17, 2018 4:22 am
Forum: E-Bike General Discussion
Topic: BHT Swing Arm & Power Middrive
Replies: 3
Views: 216

Re: BHT Swing Arm & Power Middrive

Alex, I share your beliefs and agree cooperation between niche builders could reduce fixed costs and offer scope for innovative ebikes, as opposed to motorcycles like the Suron. The difficulty will be to agree on design scope and functionality. I'd suggest a 0 to 3kw design (continous) and 3kw+ desi...
by Rube
Mar 31, 2018 4:15 am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 406
Views: 15728

Re: bluetooth BMS?

...... I understand it is bit hard sometimes to find a motor with correct speed constant, also discussing it in chinglish with average sales guy who don't understand your questions, but it is well worth it..... Also some motors can be connected from Y to ∆. I have to confess my first ebike was also...
by Rube
Mar 28, 2018 3:11 am
Forum: Battery Technology
Topic: Battery connector 600amp
Replies: 5
Views: 261

Re: Battery connector 600amp

While there is no substitute for dedicated high power connectors, I wonder about the effectiveness of the bolt in the terminal fixing used in welder connectors. Some of the welder connectors have a copper crush tube under the bolt; others rely on the bolt compressing against the wire strands, a crim...
by Rube
Mar 26, 2018 5:23 am
Forum: E-Bike Photos & Video
Topic: Qulbix 76R build
Replies: 27
Views: 2503

Re: Qulbix 76R build

If it was mine, I'd run with what you have, albeit with some wiring upgrades, and I'd keep an eye on the BMS temp and charging behaviour. That way you can get a feel for what you want and how hard you want to push the power train. You have a very capable battery and you can always upgrade peripheral...
by Rube
Mar 20, 2018 6:56 pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1868
Views: 50859

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Fall out from what ? ..a change of government ?..... The benefits of the connector scheme are obvious, .. If you want to understand the real "benefits" of RE in Australia,.......follow the money ! Hi, by fallout I'm referring to dumping a mostly privately funded install of solar plus home storage f...
by Rube
Mar 19, 2018 4:36 am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1868
Views: 50859

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Come on Jonescg, how can you possibly pork barrel if you implement a scheme that reduces energy costs for low income earners? Politics 101 tells us any scheme should target your voting demographic. Jokes aside, I agree the fall out will take years to measure and the benefit realisation of the connec...
by Rube
Mar 11, 2018 1:21 am
Forum: Stand-up E-scooters and E-skateboards
Topic: Evolve Carbon Gen 2 - need bms
Replies: 2
Views: 416

Re: Evolve Carbon Gen 2 - need bms

Crikey, $2k and epic cluster of rework and repair. Hope you get your money back.
by Rube
Mar 09, 2018 8:38 pm
Forum: Battery Technology
Topic: Batteries and heat
Replies: 11
Views: 365

Re: Batteries and heat

Perhaps some of the best examples can be seen in OEM automotive applications where the battery cooling circuits are designed to deal with high and low temperature issues. I think Tesla uses a glycol filled cooling ribbon snaking between the cells. From memory it requires safety features for isolatio...
by Rube
Mar 09, 2018 5:58 am
Forum: Battery Technology
Topic: Wire bonding, instead of spot-welding (like Tesla)
Replies: 18
Views: 2952

Re: Wire bonding, instead of spot-welding (like Tesla)

t Luna Cycle has announced that all their fusion batteries are being wire bonded in the USA. http://www.electricbike.com/luna-cycle-announces-wire-bonded-ebike-battery-packs/ Slowly catching up with their competition, I have a few reservations about the fusible link in a potting compound but good o...
by Rube
Mar 08, 2018 6:10 pm
Forum: Items for Sale - New
Topic: DIY assembly kit for 18650 without spot welding/Soldering
Replies: 460
Views: 37852

Re: DIY assembly kit for 18650 without spot welding/Soldering

Great news on the product evolution and congratulations for being a socially progressive and responsible company.

Will users need to avoid UV exposure to the new polymer caps?
by Rube
Mar 08, 2018 4:09 am
Forum: E-Scooter and Motorcycle General Discussion
Topic: Kawasaki Z750 Conversion
Replies: 3
Views: 391

Re: Kawasaki Z750 Conversion

Yes for the battery see Jonecg posts in the for sale section. To get inspiration from Sketchism's motard build you'll need to look on ES Facebook. Also have a look at the 50kw Aprillia build on the forum. The builder shares some geart images on Facebook but I forgot the group name. I think on YouTub...
by Rube
Mar 03, 2018 6:20 am
Forum: E-Bike Technical
Topic: Feedback on using Hirose DF62 Connectors
Replies: 8
Views: 324

Re: Feedback on using Hirose DF62 Connectors

Also the Hirose DF62w have the same architecture with a seal to keep out water. I'm about to order a test batch so I'll keep you posted. I've had good experiences using crimpers, with multiple jaws, on many pin types. I'd be confident you can find a cheaper crimping tool although I haven't looked. I...
by Rube
Mar 02, 2018 8:05 am
Forum: E-Scooter and Motorcycle General Discussion
Topic: Kawasaki Z750 Conversion
Replies: 3
Views: 391

Re: Kawasaki Z750 Conversion

Awesome project, nothing wrong with proving concept using K.I.S.S. Firstly, you'll learn so much that any future mid drive build will be much less compromised than a all-in first attempt. Secondly you'll get it running sooner and the EV grin will motivate you through any revisions. Sketch is the per...
by Rube
Feb 27, 2018 6:07 am
Forum: Items for Sale - New
Topic: li-ion 18650 Adjustable size BATTERY HOLDER - Honeycomb Layout
Replies: 20
Views: 2087

Re: li-ion 18650 Adjustable size BATTERY HOLDER - Honeycomb Layout

Yeah another Australian interested in an order. Chris, let me know how many you want in case it's worth sharing an order.
by Rube
Feb 22, 2018 6:19 am
Forum: E-Bike Photos & Video
Topic: First Mid Drive build, cyclone 3kw, custom mounts, Full suspension Bike.
Replies: 28
Views: 1069

Re: First Mid Drive build, cyclone 3kw, custom mounts, Full suspension Bike.

Grin have a super slim throttle, that will be my next attempt to solve interference between throttle and shifter.
by Rube
Feb 18, 2018 4:41 pm
Forum: Battery Technology
Topic: 18650's... Less juicy than lipos!
Replies: 4
Views: 341

Re: 18650's... Less juicy than lipos!

redline2097 wrote:
Feb 18, 2018 9:35 am
That's total of 9x20x3.6vx2.6ah = 1684wh
20x3.7vx30ah = 2220wh and you are using about 95% of it. So 1684/(0.95x2220) = 0.798
Might be a silly question but why 3.6v used in the first caculation of 18650wh?
by Rube
Feb 17, 2018 5:15 pm
Forum: E-Bike Technical
Topic: Anderson Technical Information Thread
Replies: 9
Views: 856

Re: Anderson Technical Information Thread

Glyn wrote:
Feb 17, 2018 2:54 pm
A noob question: With these Anderson connectors, am i right in thinking that there is no male and female? i.e. two identical housings will plug into each other?
Yes, you are right, the male and female housing and contacts are the same.
by Rube
Feb 16, 2018 5:45 pm
Forum: E-Bike Photos & Video
Topic: Norco A line; Following in Timma's footsteps.
Replies: 19
Views: 2115

Re: Norco A line; Following in Timma's footsteps.

Thanks for the photos, nice and tidy solution.
by Rube
Feb 16, 2018 4:41 pm
Forum: E-Bike Technical
Topic: Melting wires
Replies: 44
Views: 1190

Re: Melting wires

For what it's worth, crimp connectors including Anderson's have always been more reliable for me than soldered connectors. Most OEM crimping and pin tooling prices are outrageous. Plenty of affordable high-quality alternatives are available for common connectors. If a 150amp crimp connector with for...
by Rube
Feb 14, 2018 6:07 am
Forum: E-Bike General Discussion
Topic: 2 Controllers one motor
Replies: 17
Views: 621

Re: 2 Controlles one motor

Buk___ wrote:
Feb 14, 2018 3:58 am
Thanks for this. Such concise descriptions of circuit limitations/boundaries is very rare to find.

Exactly, Alan thanks for taking the time to inform others. Much appreciated and food for thought.
by Rube
Feb 11, 2018 4:22 pm
Forum: E-Bike Photos & Video
Topic: Norco A line; Following in Timma's footsteps.
Replies: 19
Views: 2115

Re: Norco A line; Following in Timma's footsteps.

Nice job, must have a long range. What did you do with the thru axle swingarm to accommodate the hub? Cut slots and add a torque arm? If you could post a close up pic that would be great. Cheers
by Rube
Feb 08, 2018 5:18 am
Forum: E-Bike Photos & Video
Topic: Thorium's Giant DH Comp Build
Replies: 14
Views: 1236

Re: Thorium's Giant DH Comp Build

Good news, I'm new to ebikes and looking at a similar frame without shocks or forks. I'm also interested in suspension options, although I haven't searched for specs yet. Do you know the rear shock travel, eye to eye measurements, and fork specs? No need to check if you don't, I should do a bit of r...
by Rube
Feb 07, 2018 4:47 am
Forum: Alternative Energy
Topic: My DIY battery storage system
Replies: 30
Views: 2608

Re: My DIY battery storage system

jonescg wrote:
Feb 06, 2018 8:18 pm
Fame! :lol:
Not as good as your sultury radio voice :D