Search found 820 matches

by Ohbse
Jan 03 2021 11:02pm
Forum: EBike Technical
Topic: BLDC Controller recommendations (72v nominal, >=150A peak DC Amps)
Replies: 11
Views: 485

Re: BLDC Controller recommendations (72v nominal, >=150A peak DC Amps)

anyone know anything about Syqiq, i think i read people from Adaptto are involved http://syqiq.tech/ Definitely an Adaptto BMS pictured. Rest of it appear to be renders, sure looks like vaporware... Real answer is Nucular - only downside is the wait. They are working towards serial production so I ...
by Ohbse
Jan 03 2021 10:53pm
Forum: EBike Non-hub Motor Drives
Topic: Sur-Ron - New Mid drive Bike
Replies: 5396
Views: 604830

Re: Sur-Ron - New Mid drive Bike

It's an ASI - so... unreliable, comparatively difficult to configure, dodgy support (thanks to resellers rather than the company themselves). It's better than the stock controller IF you can get it configured correctly. Nucular is a better option in every regard, with the notable exception of its lo...
by Ohbse
Dec 30 2020 11:59pm
Forum: Items for Sale - Used
Topic: NZ - Cleanout! Bikes, Wheels, Rims, Hub motors, Controllers, Chargers, Frames, Tools, Machinery, Electronics and more
Replies: 11
Views: 708

Re: NZ - Cleanout! Bikes, Wheels, Rims, Hub motors, Controllers, Chargers, Frames, Tools, Machinery, Electronics and mor

Avid CNC Pro 4896, 2.5mx1.3m CNC Router. 2.2KW Spindle, VFD Teknic Clearpath NEMA34 Motion Control, UCCNC software on a UB1 breakout board. Edge finder/Tool setter Donek Drag knife Collet set (1/8", 1/4", 3/8", 1/2") Surfacing bit Other misc tooling worth ~$2k, engraving, compres...
by Ohbse
Dec 30 2020 11:21pm
Forum: EBike General Discussion
Topic: My fast road DH Comp - 2.5kwh 18650's/Mobipus/QS V3
Replies: 51
Views: 8898

Re: My fast road DH Comp - 2.5kwh 18650's/Mobipus/QS V3

If you're interested check out the for sale thread - viewtopic.php?f=9&t=109798

Cheers
by Ohbse
Dec 30 2020 11:14pm
Forum: Items for Sale - Used
Topic: NZ - Cleanout! Bikes, Wheels, Rims, Hub motors, Controllers, Chargers, Frames, Tools, Machinery, Electronics and more
Replies: 11
Views: 708

Re: NZ - Cleanout! QS 205 V4 hub, Crystalyte hub, Mobipus, Sabvoton, Wheels, Rims, PSU's, Giant DH Comp, DieBieMS and mo

24" Halo SAS 36mm Rim - the strongest 24" rim made. Brand new. $40 Industrial Shelving - 3 Bays of 5 Shelves per bay. 350KG/shelf. Clear coated particle boards. 1.8m long shelves, 2.1m high, 500mm deep. MUCH nicer/stronger than any hardware store rubbish shelving $400 Arbor Press - 12"...
by Ohbse
Dec 30 2020 11:08pm
Forum: Items for Sale - Used
Topic: NZ - Cleanout! Bikes, Wheels, Rims, Hub motors, Controllers, Chargers, Frames, Tools, Machinery, Electronics and more
Replies: 11
Views: 708

Re: NZ - Cleanout! QS 205 V4 hub, Crystalyte hub, Mobipus, Sabvoton, Wheels, Rims, PSU's, Giant DH Comp, DieBieMS and mo

Cromotor V3 9kv laced into a Sun King Pin 24" Rim with Sapim 12ga spokes. Upgraded phase leads. Fairly worn 24" Maxxis Hookworm tire. I *think* this had issues with the magnets coming unglued, I never confirmed this before I moved on to 17" motorcycle stuff - if you search on these bo...
by Ohbse
Dec 30 2020 10:26pm
Forum: Items for Sale - Used
Topic: NZ - Cleanout! Bikes, Wheels, Rims, Hub motors, Controllers, Chargers, Frames, Tools, Machinery, Electronics and more
Replies: 11
Views: 708

Re: NZ - Cleanout! QS 205 V4 hub, Crystalyte hub, Mobipus, Sabvoton, Wheels, Rims, PSU's, Giant DH Comp, DieBieMS and mo

26" DH wheel - Mavic EX729 rim, Hope EVO 2 hub, DT Swiss double butted spokes with brass locking nipples. Built by ChainReaction cycles. Maxxis Hookworm tire. Not a ton of use, all on-road. This is about the best possible 26" wheel money could buy when built. Super light, ridiculously stro...
by Ohbse
Dec 30 2020 9:55pm
Forum: Items for Sale - Used
Topic: NZ - Cleanout! Bikes, Wheels, Rims, Hub motors, Controllers, Chargers, Frames, Tools, Machinery, Electronics and more
Replies: 11
Views: 708

NZ - Cleanout! Bikes, Wheels, Rims, Hub motors, Controllers, Chargers, Frames, Tools, Machinery, Electronics and more

I'm moving to the other side of the planet in the new year - everything must go. All prices are in NZD. Please do not give me any lowball bullshit, they're already cheap. Pickup vastly preferred, but can ship things within NZ up to a certain size. Battery and larger/heavier items shipping will end u...
by Ohbse
Dec 30 2020 9:16pm
Forum: EBike General Discussion
Topic: My fast road DH Comp - 2.5kwh 18650's/Mobipus/QS V3
Replies: 51
Views: 8898

Re: My fast road DH Comp - 2.5kwh 18650's/Mobipus/QS V3

It's been a while! I retired my Giant DH comp a while ago after purchasing a Surron which I've been modifying. Now it's for sale! Everything still works great, still great fun to ride and was still very reliable - just surplus to requirements. I'm moving overseas in the new year and so everything mu...
by Ohbse
Aug 07 2020 11:54pm
Forum: EBike Non-hub Motor Drives
Topic: Sur-Ron - New Mid drive Bike
Replies: 5396
Views: 604830

Re: Sur-Ron - New Mid drive Bike

Highest I could get the motor was 72C-74C. It mostly stayed around 65C-70C. This is with 88F outside air. This is also using 90 amps x battery voltage with a Nuclear 24 fet controller. I checked the case temp with an infared thermometer, when the temp was 65C inside the motor measured by the temp p...
by Ohbse
Aug 07 2020 10:29pm
Forum: Motor Technology
Topic: Surron Motor tuning with datalogs! FOC experts needed
Replies: 11
Views: 830

Re: Surron Motor tuning with datalogs! FOC experts needed

I realised I never posted an update here - vasiliy released new firmware based on mine and others feedback which completely resolved the non linear behaviour and now this thing RIPS. Still on 16s stock battery with a parallel booster pack from old 30qs, now hits 16.2kw on a daily basis. Power does n...
by Ohbse
May 08 2020 9:23pm
Forum: EBike Non-hub Motor Drives
Topic: Sur-Ron - New Mid drive Bike
Replies: 5396
Views: 604830

Re: Sur-Ron - New Mid drive Bike

What throttle pot do you have? I've graphed my stock SurRon pot and its S shaped and exactly opposite of what you show. Slow ramp at the start (and end) and steep in the middle. He's using a shitty chinese thumb throttle with abysmal voltage curve and complaining of throttle issues. Stock Sur-ron t...
by Ohbse
Apr 26 2020 8:19pm
Forum: Motor Technology
Topic: Surron Motor tuning with datalogs! FOC experts needed
Replies: 11
Views: 830

Re: Surron Motor tuning with datalogs! FOC experts needed

Any updates on this? I understand the motor current dropping off as you run out of phase amps but why does the battery current also drop off in the mid/high end? That is the million dollar question! This is doubtless due to BEMF, however the fact that it increases so non-linearly with motor RPM is ...
by Ohbse
Apr 10 2020 9:24pm
Forum: Vendor Relations Corner
Topic: E.R.T \ Alan Hu nightmare.
Replies: 32
Views: 2681

Re: E.R.T \ Alan Hu nightmare.

I had a similar experience buying a motor from him about 4 years ago. Nothing has changed, he is incapable of functionally running a business and communicating to even a basic degree.

Chargebacks are the way to deal with this BS, call your credit card company and get your money back.
by Ohbse
Apr 09 2020 7:13pm
Forum: Motor Technology
Topic: Surron Motor tuning with datalogs! FOC experts needed
Replies: 11
Views: 830

Surron Motor tuning with datalogs! FOC experts needed

My favorite controller by a mile, the Nucular 24f has recently added the ability to datalog to the onboard microSD card. This allows for some awesome analysis that previously would only be possible with a handful of high end controllers and custom logging solutions or with a lot of external, expensi...
by Ohbse
Mar 02 2020 3:16am
Forum: EBike Build Threads
Topic: Neematic - 20kW middrive bike
Replies: 268
Views: 55128

Re: Neematic - 20kW middrive bike

- Battery specs say 50V 2.2 kW. Do they mean 12S @ 110aH of an undisclosed cell type? Website says a 6 hour recharge so aprox 18 Amp charge? Batteries are supposed to be hot-swappable This is such a stupid, embarrassing error to neglect the kW h on your own launch brochure. By the sounds of it, pac...
by Ohbse
Mar 01 2020 3:14pm
Forum: Items for Sale - New
Topic: Advanced ADAPTTO controllers and compatible products
Replies: 1601
Views: 262717

Re: Advanced ADAPTTO controllers and compatible products

DasDouble wrote:
Mar 01 2020 9:50am
Well my personal Max-E got repaired like 2 times already. Worked really great with them. Hopefully not the whole controller is damaged but only the display instead.
Cheers
Recently? I'm not sure that Adaptto is functional as a business at all at this point...
by Ohbse
Feb 29 2020 11:06pm
Forum: General Discussion
Topic: Fatal ebike crash trial
Replies: 31
Views: 3338

Re: Fatal ebike crash trial

I hope that wasn't a forum member, traveling 10mph over the speed limit in a crowded city setting and then leaving the scene of an accident. He deserves some punishment. Does England have the legal concept of contributory negligence, where a percentage of the fault can be assigned to the respective...
by Ohbse
Feb 29 2020 10:37pm
Forum: Items for Sale - New
Topic: Advanced ADAPTTO controllers and compatible products
Replies: 1601
Views: 262717

Re: Advanced ADAPTTO controllers and compatible products

Good luck with that. I'm not aware of any recent repair successes. Tell your friend to get on the Nucular waiting list asap!
by Ohbse
Feb 22 2020 6:14pm
Forum: EBike Non-hub Motor Drives
Topic: Sur-Ron - New Mid drive Bike
Replies: 5396
Views: 604830

Re: Sur-Ron - New Mid drive Bike

Generally drop-shippers charge their customers a premium for access to "their" parts, that they don't actually have at all lol. OK, but it's pure speculation on your part if that is what they are actually doing or not, right? You can just go buy the parts for less from a real dealer, but ...
by Ohbse
Feb 22 2020 4:37pm
Forum: Motor Technology
Topic: Roman Kostrygin - Sur-Ron 16kw outrunner
Replies: 66
Views: 9444

Re: Roman Kostrygin - Sur-Ron 16kw outrunner

Hopefully he's a little more open to learning as he goes and doesn't take everything overly personal. There's clearly a lot of dicks on Endless Sphere. There's clearly lots of people that are haters too. All I can say is if the commenters in this thread and others are the welcome wagon...well you h...
by Ohbse
Feb 21 2020 5:05pm
Forum: Motor Technology
Topic: Roman Kostrygin - Sur-Ron 16kw outrunner
Replies: 66
Views: 9444

Re: Roman Kostrygin - Sur-Ron 16kw outrunner

:lol:

Absolutely fantastic. I'm glad 'motormodder' is going to follow in EGs footsteps and evaluate this motor. Hopefully he's a little more open to learning as he goes and doesn't take everything overly personal.
by Ohbse
Feb 21 2020 5:02pm
Forum: EBike Build Threads
Topic: Neematic - 20kW middrive bike
Replies: 268
Views: 55128

Re: Neematic - 20kW middrive bike

Thread title is 20kw but all the published specs are 15, which is possible, though seems unlikely to maintain that output for any length of time. 2.2kwh pack assembled from 18650s or 21700 cells is pretty maxed out at 15kw output. Personally, I think the pedals at this power level are pointless and ...