Search found 103 matches

by usertogo
May 22 2020 5:50am
Forum: E-Bike Non-hub Motor Drives
Topic: E-Novation Bafang/8Fun BBS03 non free wheeling circuit or modification?
Replies: 2
Views: 108

Re: Bafang/8Fun BBS03 non free wheeling circuit or modification?

I am not sure if by BBS03 you mean the BBSHD, but if so, the BBSHD does indeed have a clutch in it. I don't know anything about a BBS03. I attach some pictures, it definitely looks similar to what I seen about the other Bafang mid drives, but maybe counting teeth or comparing diameters one could be...
by usertogo
May 21 2020 6:40pm
Forum: E-Bike Non-hub Motor Drives
Topic: E-Novation Bafang/8Fun BBS03 non free wheeling circuit or modification?
Replies: 2
Views: 108

E-Novation Bafang/8Fun BBS03 non free wheeling circuit or modification?

Hello folks, I bought a used Enovation Bafang BBS03 Mid drive motor only without any display or additional wiring. I thought it had to have some kind of free wheeling between the pedal drive and the chain wheel, so in the worst case I could use any BLDC controller directly to to motor wires... So be...
by usertogo
Apr 06 2020 5:21am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1459
Views: 180838

Re: bluetooth BMS?

As for security, the Chinese app has no place for a PIN. The BT module however could take a PIN. I'm currently looking into connecting with the manufacturer to get changes made such as adding a PIN. We'll see what happens...maybe nothing, maybe a lot. Is there any news about the pin/encryption solu...
by usertogo
Apr 05 2020 4:47pm
Forum: EV Business World
Topic: Crowd funding DIY Prototype Insurance & inalienable Right DIY Mobility
Replies: 9
Views: 371

Re: Crowd funding DIY Prototype Insurance Sovereign Being

If the government chooses to ban an activity and actually puts in the resources to detect it enforce that ban, having "crowd-funded insurance" will not help. You mention a lot of real barriers that are basically the bricks that build that 'platonic slave cave' around the Matrix dweller (that is our...
by usertogo
Apr 05 2020 10:24am
Forum: EV Business World
Topic: Crowd funding DIY Prototype Insurance & inalienable Right DIY Mobility
Replies: 9
Views: 371

Re: Crowd funding DIY Prototype Insurance Sovereign Being

Notice this is not just about bikes, but trikes, quads, quints, trailers, any EV you could come up with even if on land, flying or in and on water! So - No - Insurance will never go away as long as there is a hint of authoritarian 'governments' instituted among people! And rather than thinking about...
by usertogo
Apr 05 2020 5:25am
Forum: EV Business World
Topic: Crowd funding DIY Prototype Insurance & inalienable Right DIY Mobility
Replies: 9
Views: 371

Re: Crowd funding DIY Prototype Insurance Sovereign Being

To create a universal bike insurance offer, that is able to provide insurance to riders (for example on a per person basis) regardless what the legal status of their vehicle is - that is called a service!
I have no clue what type of scam you are hallucinating about John?
by usertogo
Apr 04 2020 4:54pm
Forum: EV Business World
Topic: Crowd funding DIY Prototype Insurance & inalienable Right DIY Mobility
Replies: 9
Views: 371

Re: Crowd funding DIY Prototype Insurance Sovereign Being

to get the "powers that be" to see it is in the public interest to allow DIY eVehicles including eBikes, with reasonable regulations. All ok observations, but I have learned to approach solutions from the angle where some part of the problem is solved and somebody gets rewarded for a real service p...
by usertogo
Apr 04 2020 3:44pm
Forum: EV Business World
Topic: Crowd funding DIY Prototype Insurance & inalienable Right DIY Mobility
Replies: 9
Views: 371

Crowd funding DIY Prototype Insurance & inalienable Right DIY Mobility

Guys, you might have heard about France implementing a law that threatens people that build and use muscle electric Vehicles with more than 25km/h and 250W power with up to 30000€ penalty and up to a year screwing over!? https://cyclingindustry.news/french-government-lead-on-e-bike-tuning-with-threa...
by usertogo
Jun 07 2019 12:25pm
Forum: Motor Technology
Topic: Steel-geared hub motor?
Replies: 126
Views: 24408

Re: Steel-geared hub motor?

I used a TIG machine (which is a precision instrument in welding world) to place a bead around shaft. I finally got around to weld one of my clutches (normal stick welding at least spots on both sides), hoping to finally use these 8fun motors again - but surprise something else is slipping inside! ...
by usertogo
May 13 2019 10:19am
Forum: Battery Technology
Topic: Rectifier Huawei R4850G2 48V 42~58V 3000w
Replies: 101
Views: 17921

Re: Rectifier Huawei R4850G2 48V 42~58V 3000w

A little update on my PSU hacking attempts: https://cloud.botox.bz/s/YiDciose2DwzkTL/preview I love it, But I wonder does bluetooth penetrate the case when its closed, or are you not planning to close it? Work in progress still, code on GitHub https://github.com/BotoX/huawei-r48xx-esp32 Using this ...
by usertogo
May 13 2019 9:54am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 4076
Views: 371860

Re: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW

Thanks for creating and maintaining this OpenSource effort so active! I also want to get in to it in my latest build and am wondering if these controllers are the type that take the developed firmware: https://www.aliexpress.com/item/Okfeet-56V-90V-60A-Electric-bicycle-standard-square-wave-controlle...
by usertogo
May 13 2019 5:31am
Forum: Motor Technology
Topic: 5WD Quint Uphill Torque via Universal Brushed Washing Machine Motor + Electric Gearing Battery Setup
Replies: 0
Views: 316

5WD Quint Uphill Torque via Universal Brushed Washing Machine Motor + Electric Gearing Battery Setup

Hello Folks Actually let me correct it may not be a quad after all but a convertible _Quint_ with trike and quad option my concern is uphill torque for a heavy 3 person pedeling quint - now that is a quad with a tadpole center wheel. It will sport heavy direct drive 1000W BLDC Motors in each front w...
by usertogo
Apr 18 2019 4:22pm
Forum: Motor Technology
Topic: Steel-geared hub motor?
Replies: 126
Views: 24408

Re: Steel-geared hub motor?

circuit wrote:
Apr 18 2019 2:06pm
I have welded my bafang. All fine.
Yes but how did you accomplish that? My clutches are relatively thin steel plates on the outside and only the axis turns everything else is hidden in between. Do you have any pictures, or can you describe what was your guiding insight?
by usertogo
Apr 18 2019 12:55pm
Forum: Motor Technology
Topic: Steel-geared hub motor?
Replies: 126
Views: 24408

Re: Steel-geared hub motor?

IMG_20171125_172704Trio-web.jpg I wonder have any of you ever found a good way to lock the clutch? I must have killed 3 or 4 clutches and effectively stopped using the motors (I might have them as hub) but use a direct drive motor on the other axis. I want to experiment with converting them to 'gea...
by usertogo
Dec 14 2018 6:48am
Forum: Battery Technology
Topic: Rectifier Huawei R4850G2 48V 42~58V 3000w
Replies: 101
Views: 17921

Re: Rectifier Huawei R4850G2 48V 42~58V 3000w

I used a TI Tiva-C because I had that lying around, but I plan on using an ESP32 that I'll hide in the PSU for adjusting parameters over bluetooth. Tiva-C: http://www.ti.com/tool/EK-TM4C123GXL ESP32: https://www.aliexpress.com/item/ESP32-ESP-32-Development-Board-Wireless-WiFi-Bluetooth-Dual-Core-CP...
by usertogo
Nov 30 2018 12:44pm
Forum: Battery Technology
Topic: Revolutionary BMS & Battery Interoperability Standard
Replies: 0
Views: 533

Revolutionary BMS & Battery Interoperability Standard

Observing great progress on many fronts this 'group mind' puts its consciousness @ I consider it time to create the proper discussion thread for an Idea I have been pushing: https://prezi.com/qibqej3sqqy1/open-source-battery/ :mrgreen: It is always sad to not see each cell of a battery treated to it...
by usertogo
Nov 27 2018 7:19am
Forum: Battery Technology
Topic: Rectifier Huawei R4850G2 48V 42~58V 3000w
Replies: 101
Views: 17921

Re: Rectifier Huawei R4850G2 48V 42~58V 3000w

There is a Chinese guy selling the programmer boards for about 12$ on Taobao https://2.taobao.com/item.htm?id=565948826876&ft=t&toSite=main If you are having difficulty ordering it then you can use a third party service like Taobao Focus. They will order it for you and ship it to you. https://buy.t...
by usertogo
Nov 27 2018 6:42am
Forum: Battery Technology
Topic: Rectifier Huawei R4850G2 48V 42~58V 3000w
Replies: 101
Views: 17921

Re: Rectifier Huawei R4850G2 48V 42~58V 3000w

Nice! Good thing I've already placed my order @dutchrfshop for one of these PSUs :mrgreen: And I've also ordered some ESP32 dev boards + TJA1050 CAN transciever from AliExpress and will be making open source firmware to control the PSU through CAN. With the ESP32 that means you could control the PS...
by usertogo
Nov 26 2018 4:03pm
Forum: Battery Technology
Topic: Rectifier Huawei R4850G2 48V 42~58V 3000w
Replies: 101
Views: 17921

Re: Rectifier Huawei R4850G2 48V 42~58V 3000w

I am going to test pulling them down to GND and report! Huawei-R4850G2completePinout.png The good news is I connected the 2 board detection pins together and pulled them down to the negative 48V (GND) and that was all that was required to get the unit to power up and deliver the proud 53.5V output!...
by usertogo
Nov 26 2018 8:44am
Forum: E-Bike Non-hub Motor Drives
Topic: OpenEMoto
Replies: 98
Views: 18845

Re: OpenEMoto

I've a new video but isn't something cool. I had a crash and broke my Marzocchi 380. Check this topic https://endless-sphere.com/forums/viewtopic.php?f=2&t=92618 The crash was big, but only impacts with the floor. Still my fork left bottle is bent in some way, and the stanchion can't slide. I feel ...
by usertogo
Nov 25 2018 4:44pm
Forum: Battery Technology
Topic: Rectifier Huawei R4850G2 48V 42~58V 3000w
Replies: 101
Views: 17921

Re: Rectifier Huawei R4850G2 48V 42~58V 3000w

Thank you indeed you found the definition of the 2 unidentified pins https://translate.googleusercontent.com/translate_c?act=url&depth=1&hl=en&ie=UTF8&prev=_t&rurl=translate.google.com&sl=auto&sp=nmt4&tl=en&u=https://forum.huawei.com/enterprise/zh/thread-361081.html&xid=17259,15700023,15700124,15700...
by usertogo
Nov 25 2018 8:00am
Forum: Battery Technology
Topic: Converting an inverter welder into a charger (and welder)
Replies: 16
Views: 2235

Re: Converting an inverter welder into a charger (and welder)

Thanks for that info. The huawei price/power looks very good. https://es.aliexpress.com/item/New-and-original-Huawei-R4850G2-rectifier-module-48V-56A-communiction-power/32818030744.html In the meantime, i've brought a dedicated 80usd DC welder. I've taken 1500W from it without halts. I will try to ...
by usertogo
Nov 23 2018 3:35pm
Forum: Battery Technology
Topic: Converting an inverter welder into a charger (and welder)
Replies: 16
Views: 2235

Re: Converting an inverter welder into a charger (and welder)

I would recommend something like this: Eaton APR48-3G Rectifier Module ... You can mod it to go as low as 42V (10S) and as high as ~90V (20S) I think there is a bit of disinformation in it too, because its not the APR48 that can go up to 90V, but this switch mode input booster that a certain motor ...
by usertogo
Nov 20 2018 10:25am
Forum: Battery Technology
Topic: Rectifier Huawei R4850G2 48V 42~58V 3000w
Replies: 101
Views: 17921

Re: Rectifier Huawei R4850G2 48V 42~58V 3000w

I have searched a lot and entered into the world of these communication power supply cabinets... I found that they usually contain LiFePo batteries, and the supplies can charge as well as supply the continuous operational current. With half a million hours MTBF ( https://www.cdiweb.com/datasheets/hu...
by usertogo
Nov 12 2018 6:09pm
Forum: Battery Technology
Topic: Rectifier Huawei R4850G2 48V 42~58V 3000w
Replies: 101
Views: 17921

Re: Rectifier Huawei R4850G2 48V 42~58V 3000w

I have been advancing, meaning I found the box and wired power in, I get the green LED after boot, with a feeler voltage of about 1V on the output, but no more... DSC_0154web.JPG From a question posted on Piclist i got a hint that those are actually chargers from conception, so I applied logic as su...