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  1. R

    BESC-G4

    Is this project still alive ?
  2. R

    Tabless design cylindrical cells tests

    I don't really believe that but okay ..
  3. R

    Tabless design cylindrical cells tests

    Thank you for the update.
  4. R

    Tabless design cylindrical cells tests

    Try jewellery welder and maybe cooper will do better ..
  5. R

    QS138 90H V3 Max Voltage

    Easy 140-160V DC without field weakening.. It has been done by one guy from Germany but with V1
  6. R

    R.OS VESC display

    Great project and exactly what DiY community needs .
  7. R

    Tabless design cylindrical cells tests

    How are Chinese cells doing ?
  8. R

    46950 on Alibaba.... too good to be true?

    Thank you pointing that out
  9. R

    46950 on Alibaba.... too good to be true?

    I spoke with Gary Little from Vextek , he told me to get a kWeld and just try . He said it's a lot of trial and error until you get it right . After watching this video , i now know that it's possible to spot weld 0.5mm copper
  10. R

    46950 on Alibaba.... too good to be true?

    I'm trying to find some handheld Ultrsonic welders , apparently it's 20kHz to weld copper .
  11. R

    46950 on Alibaba.... too good to be true?

    Thank you for sharing this . @TheRealJohnnyB . Now that is very impressive . And at the same time time i can't believe what seeing here , Cylindrical cell with 10C continuous discharge would be comparable to LG P2.7B 27Ah pouch cells which are basically 200Wh/Kg . That makes these cells not...
  12. R

    46950 on Alibaba.... too good to be true?

    Here's more information about these cells . They are not as good as Tesla's 4680 in terms or iR nor cycle life . Apparently Tesla 4680 cells are good for 1500 cycles before they start to degrade but these should be able to last 1200 cycles .
  13. R

    Yamaha YZ250F

    You want to do the Auto learn with help of phone App and only then use PC software for fine tuning . Here's a video on how to do it . You hold the throttle wude open abd domt let go untill it finishes auro lern https://youtu.be/gl64_oTQa1w If you need any help with settings or tuning please...
  14. R

    Yamaha YZ250F

    I know that you don't like posting in Electric Motorcycle Builds Facebook group but i can tag a handful of Sevcon experts which might be able to help you figure out the settings . One of them is an owner Voltsport UK . The only one i know here is Arlin Samsone as Arlo1
  15. R

    Converting 3-phase to 6-phase by cutting coils at the star point

    I watched your test video , it clearly showed how both controllers interact with each other . I don't know how it would work but if it works by putting one controller in current mode why not. Ive only seen tests with identical controllers and vesc can link together over CAN ...
  16. R

    Converting 3-phase to 6-phase by cutting coils at the star point

    For it to work properly you need two identical controllers ! Vesc controller has a CAN interface through which it can send throttle info to the second Vesc . Even if you put it into reverse , the second Vesc will know what to do
  17. R

    Yamaha YZ250F

    This is an amazing build you have here ! Can you please share your build in Electric Motorcycle Builds Facebook group. :bigthumb: https://www.facebook.com/groups/electricmotorcyclebuilds
  18. R

    Oops! I bought a Chinese electric motorcycle...

    Did you managed to get it working with the QSMOTORS QS 138 mid drive motor ? How does the interface look like, is there an option for English language . ?
  19. R

    Axiom: a 100kW+ motor controller

    How do i put down a deposit for one of these controllers ? All i would really need is 200V and 400A max for and e-bike build to run and outrunner in FOC mode ! And the other big questions is , how much it would cost ? Kind regards Ray
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