Search found 548 matches

by Vanarian
Sep 03 2016 11:06am
Forum: Stand-up E-scooters and E-skateboards
Topic: AT-One electric inline skates (quick update Feb 2019)
Replies: 219
Views: 51617

Re: 3.2KW / 6KW inline skates (updated August 13th 2016)

I feel you there, lighter is better. It is difficult to determine when a skate becomes heavy, for example I started skating seriously with skates weighing 4.4 lbs each, then since the Doop I must be more or less at 3.8 lbs each. My current 1600W setup is at 5.5lbs and 3200W at 5.9lbs, so I remain so...
by Vanarian
Aug 31 2016 2:59am
Forum: Battery Technology
Topic: Another No Solder/Weld 18650 Build (Updated 03/09/2014)
Replies: 344
Views: 71347

Re: Another No Solder/Weld 18650 Build (Updated 03/09/2014)

Very pretty silicon buds! What do you use them for?
by Vanarian
Aug 23 2016 8:03am
Forum: Stand-up E-scooters and E-skateboards
Topic: AT-One electric inline skates (quick update Feb 2019)
Replies: 219
Views: 51617

Re: 3.2KW / 6KW inline skates (updated August 13th 2016)

It's alright I didn't take it on defensive POV, you've always been helpful with me :P I'll pm you the structure pics. Eventually when you ride, bearings get hot from friction but there is plastic between a regular inline wheel rubber and the bearing, and thermal conduction of the plastic is not very...
by Vanarian
Aug 22 2016 8:47am
Forum: Stand-up E-scooters and E-skateboards
Topic: AT-One electric inline skates (quick update Feb 2019)
Replies: 219
Views: 51617

Re: 3.2KW / 6KW inline skates (updated August 13th 2016)

Keep going chinyp, I know what it is to wait for a long time, it is killing inside but keep going! Well Hummi we have and don't have same problems at the same time. For example I don't need to think about heat deteriorating my wheels because there is no direct contact with the motors, so there won't...
by Vanarian
Aug 20 2016 1:32pm
Forum: Stand-up E-scooters and E-skateboards
Topic: AT-One electric inline skates (quick update Feb 2019)
Replies: 219
Views: 51617

Re: 3.2KW / 6KW inline skates (updated August 13th 2016)

Thanks! Yea that would be pretty cool. :wink: Molding is also a tight research, hard to get the less possible molds. For now I fear I'd need at least 4... As for the frames, I just realized something is basically wrong, if I want to get badly the "speed slalom" layout working I need to rework EVERY ...
by Vanarian
Aug 20 2016 8:29am
Forum: Stand-up E-scooters and E-skateboards
Topic: AT-One electric inline skates (quick update Feb 2019)
Replies: 219
Views: 51617

Re: 3.2KW / 6KW inline skates (updated August 13th 2016)

Haha I get your feelings! I've been waiting for so long it is killing. I pretty much harass Uwe with my files so his friend's factory can give me updated quote accordingly to the updated files ; after it is a matter of making and ship the parts. I got some of the electronics, and since I don't have ...
by Vanarian
Aug 20 2016 1:29am
Forum: Stand-up E-scooters and E-skateboards
Topic: AT-One electric inline skates (quick update Feb 2019)
Replies: 219
Views: 51617

Re: 3.2KW / 6KW inline skates (updated August 13th 2016)

The motor is 50mm and stator is 40mm diameter, 20mm wide! It is very small but can fit straight into 84mm wheels which are very accessible (one step up from 80mm Freestyle wheels and one step down from fitness / endurance wheels) ; it also brings the round profile Seba Street Invaders in the game. S...
by Vanarian
Aug 19 2016 12:43pm
Forum: General Discussion
Topic: Have you seen this?? Corvette GXE electric 205mph !
Replies: 2
Views: 212

Have you seen this?? Corvette GXE electric 205mph !

http://www.topgear.com/car-news/electri ... eed-record

I'm thinking of Arlo's work with his CRX right now, and this might be some more motivation to keep going! I'm in love with this car :twisted: :twisted: :twisted:

by Vanarian
Aug 19 2016 5:31am
Forum: Stand-up E-scooters and E-skateboards
Topic: AT-One electric inline skates (quick update Feb 2019)
Replies: 219
Views: 51617

Re: 3.2KW / 6KW inline skates (updated August 13th 2016)

bbq, can I look for you and your friend for some affordable services in near future? I wanna get my hub motor and frame made soon before showing it to anyone (CNC for the meantime). I'm not trusting those manufacturers from China....at all.... You should try and contact him via PM instead, he's on ...
by Vanarian
Aug 15 2016 4:26pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Lightweight standup-scooter sanity check
Replies: 9
Views: 1085

Re: Lightweight standup-scooter sanity check

Hi guys, thanks for the replies and suggestions! [...] Agree, 18650 are indeed more developed, but I had an idea to place as much batteries in the steerer tube, and then the 26650 format fits better. But it is a quite distinct difference in power density and max current, hmmm I need to think about ...
by Vanarian
Aug 15 2016 10:39am
Forum: Stand-up E-scooters and E-skateboards
Topic: Lightweight standup-scooter sanity check
Replies: 9
Views: 1085

Re: Lightweight standup-scooter sanity check

I see one first flaw in your BOM, instead of your 11s1P 26650 battery which will only give you 161Wh max for 800 gr, I suggest 10S2P 18650 LG HG2 which will give you 250Wh for 860Gr. Assuming 10Wh = 1km (conservative, you can do more if you don't bash) that's 25km of range. You also ease discharge a...
by Vanarian
Aug 13 2016 3:14am
Forum: Stand-up E-scooters and E-skateboards
Topic: BMS integrated in the charging brick - nice or stupid idea?
Replies: 16
Views: 1714

Re: BMS integrated in the charging brick - nice or stupid id

To me the discharging aspect of BMS "on the board" is useless because the ESC does manage cut off protections already. So that's one component not needed to carry of ESC is advanced enough. Instead letting it on a power supply or charger cable will keep balancing features (including charge / dischar...
by Vanarian
Aug 12 2016 4:54pm
Forum: Stand-up E-scooters and E-skateboards
Topic: BMS integrated in the charging brick - nice or stupid idea?
Replies: 16
Views: 1714

Re: BMS integrated in the charging brick - nice or stupid id

Nordle wrote:
Vanarian wrote:Hi back :D you could also look for a PSU?
but that doesn't balance anything
A PSU to plug the BMS on!
by Vanarian
Aug 12 2016 3:34pm
Forum: Stand-up E-scooters and E-skateboards
Topic: AT-One electric inline skates (quick update Feb 2019)
Replies: 219
Views: 51617

Re: 3.2KW / 6KW inline skates (updated June 17th 2016)

Promised preview ! Version 6S2P. Frame is my pride, 3x110 speed slalom mode. Ultra rigid and able to rival Seba 310, PS Pleasure Tool, FES Supersonic. This version hits the scale under 2.5kg radar. The 10S2P preview will follow. It is slightly larger and thicker, but actually no fat brick. Same CG t...
by Vanarian
Aug 10 2016 10:02am
Forum: Stand-up E-scooters and E-skateboards
Topic: AT-One electric inline skates (quick update Feb 2019)
Replies: 219
Views: 51617

Re: 3.2KW / 6KW inline skates (updated June 17th 2016)

So I've been cleaning my home yesterday and decided to tidy a corner of my linving room. Want to share :lol: https://lh6.googleusercontent.com/-Clof2yYHBLA/V6s21HrgQxI/AAAAAAAAAQw/Jnylpw0DOncKXUMu70bjM2K51oPVem2KQCL0B/w607-h809-no/2016%2B-%2B1 Bit of look back on some of my old parts https://lh5.goo...
by Vanarian
Aug 10 2016 9:01am
Forum: Stand-up E-scooters and E-skateboards
Topic: Alibaba 50 dollars VESC worth it?
Replies: 35
Views: 6662

Re: Alibaba 50 dollars VESC worth it?

I can't speak on the quality of these, BUT I can say two things : 1) I have been ripped off by bad quality of the Flier VESCs unfortunately and paid the price; 2) I also have been ripped off by Marcin Sleziak after he offered to me to service my VESCs (not free service of course), because the Flier ...
by Vanarian
Jul 30 2016 8:51am
Forum: Items for Sale - New
Topic: CitiGo Urban - WORLD'S BEST DESIGNED E-SCOOTER
Replies: 16
Views: 3858

Re: CitiGo Urban - WORLD'S BEST DESIGNED E-SCOOTER

Nice campaign! Even I am hooked up so congrats your product looks good. Can't really get past the issues pointed out up there but that's a good base, you should have put levels to reach with the funds so you can offer the different tyres sets.
by Vanarian
Jul 29 2016 2:09pm
Forum: Motor Technology
Topic: "Edge" DD hubmotor, 1500W, 35mm, Al core
Replies: 187
Views: 31238

Re: "Edge" DD hubmotor, 1500W, 35mm, Al core

Does the moped rim fits standard in a bike frame? I'm lost with the dropouts sizes
by Vanarian
Jul 26 2016 3:18am
Forum: Battery Technology
Topic: Doc GOT 100 samples of Titanate LTO cells update 6june 2011
Replies: 63
Views: 18383

Re: Doc GOT 100 samples of Titanate LTO cells update 6june 2

Welll after i got the specs from these cells i was a bit disapointed.. These are 1.8Vdc nominal and 1.0Ah and 5C discharge and 15C charge.. witch is not the very great advantages for ab ebike... So i am keeping these in the original box, untested and unused... I have no interest in using these in a...
by Vanarian
Jul 14 2016 2:08am
Forum: General Discussion
Topic: 1080P mini cams, alternatives to expensive GoPro
Replies: 73
Views: 16445

Re: 1080P mini cams, alternatives to expensive GoPro

The reason there are so many fakes is because people are content with fakes. Such as with the fact that even a GENUINE SJ5000 is a fake. Oops. Please note that there is no genuine SJ5000 but there is a genuine SJ5000+ ! Or how about that there's no genuine SJ, but there IS the genuine GoPro. . . . ...
by Vanarian
Jul 13 2016 10:45am
Forum: Battery Technology
Topic: Researchers enhance Li-ion batteries with improved electrode
Replies: 4
Views: 634

Re: Researchers enhance Li-ion batteries with improved elect

Wait, you mean up to now manufacturers have been throwing randomly electrodes in the cells?

That's like zero ducks were given when they designed cells and these guys are actually trying to show how it should have been done from the beginning.
by Vanarian
Jul 13 2016 10:33am
Forum: Motor Technology
Topic: Air-cooling the moving hub motor
Replies: 38
Views: 3829

Re: Air-cooling the moving hub motor

To my understanding the resistance remains, so there is actually also a sweet spot for the choice of your magnets strength. Your n45sh magnets should be the sweet spot for this size of motors, for bigger ones like found on e-bikes it might be a lower rating. The more strength you get, the more drag ...
by Vanarian
Jul 13 2016 6:07am
Forum: Motor Technology
Topic: Air-cooling the moving hub motor
Replies: 38
Views: 3829

Re: Air-cooling the moving hub motor

At this size and space I think it is a matter of your motor being able to cope more easily with rotation. Stronger magnets will give more flux but also add drag. You gain torque but you need more energy to move this torque. So maybe your motor reads more phase amps through windings? Plus neodymium m...
by Vanarian
Jul 13 2016 5:58am
Forum: Motor Technology
Topic: "Edge" DD hubmotor, 1500W, 35mm, Al core
Replies: 187
Views: 31238

Re: "Edge" DD hubmotor, 1500W, 35mm, Al core

That's like comparing a El Camino to a Mack truck Wouldn't it more be like a El Camino swapped with a Mack Truck engine? :mrgreen: I get your point though. By the way if the edge motor is three phases I can totally see a very lightweight build around it for standard frames : 2WD 48V setup with two ...