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  1. JRP3

    crf450r 45kw race bike build

    Yes with VESC you can apparently input parameters which can damage the controller, and the motor.
  2. JRP3

    crf450r 45kw race bike build

    Wait, he said your settings were fine, but also bad at the same time?
  3. JRP3

    Anyone make a larger hub motor for electric skateboards?

    And this, large hub motors https://blackhawkboards.ca/products/at-series
  4. JRP3

    Anyone make a larger hub motor for electric skateboards?

    I see the confusion caused by my initial thread title and post. I've edited both, I'm looking for motors for an electric skateboard. I found this, hub motors with planetary gears https://www.ecomobl.com/product/ecomobl-telum-ba-2in1-electric-mountainboard-new-arrivals/
  5. JRP3

    Email notifications - possibly fixed - check my work

    For some reason I stopped getting email notifications after March 18 for 4 of my watched threads, I only realized it today because I did get an email notification for another watched thread.
  6. JRP3

    Anyone make a larger hub motor for electric skateboards?

    I didn't see any large hub motors in that thread.
  7. JRP3

    Nanjing far driver controllers

    I don't know anything about that specific product, it was just an example. Better known brands are Gigavac and Kilovac which have more detailed data sheets available. Usually you need a lower voltage to activate the switch, 12-48V. Example Kilovac EV200 good for 500 amps and up to 900V but...
  8. JRP3

    Nanjing far driver controllers

    I doubt it, you need to use a relay/contactor. Example: https://www.amazon.com/BIVOO-Contactor-SEV100ADXL-Charging-Vehicles/dp/B0CLZHDNKV?th=1 You wire a switch to the low power terminals which allows you to cut the power to the main power.
  9. JRP3

    Nanjing far driver controllers

    Did you request the refund?
  10. JRP3

    crf450r 45kw race bike build

    Have you looked at the pin out in the manual?
  11. JRP3

    crf450r 45kw race bike build

    A few of these controllers have had communication issues with the PC connection.
  12. JRP3

    crf450r 45kw race bike build

    Did you try the motor detection with the Android app or just the PC? Mine never worked properly with my laptop but did with the app.
  13. JRP3

    Looking for dual shaft motors

    Trying to identify this dual shaft motor. Looks like a Castle Creations or X-Team but I don’t see any dual shaft motors on their sites Motors for Surface Products 1/5 - X-TEAM BRUSHLESS DC MOTOR
  14. JRP3

    Looking for dual shaft motors

    Related, I came up with 2 different solutions to create a limited slip differential between my existing outrunner motors. First uses a flexible rubber coupling to connect the motors and the second uses 2 rubber end caps with springs under them. Both work reasonably well...
  15. JRP3

    Yamaha YZ250F

    Need to put a ski on the front ;)
  16. JRP3

    QSMOTOR,0.5-12kW Electric Hub Motor & Mid Drive Motor Manufacture China

    Yes, though still in testing not yet in a vehicle.
  17. JRP3

    Limited Slip Differential for Belt Drive ESkates

    Tried another version using 2 rubber pipe caps with springs underneath them to keep them pressed together. Probably could have gone with stiffer springs but this does work. The downside is the rubber on rubber interface doesn't release smoothly, it grabs until it doesn't and then slips. I...
  18. JRP3

    Limited Slip Differential for Belt Drive ESkates

    Here's a video of the speed difference before they sent me the new motor. The delay isn't as bad in lower "gears" or if you throttle up quickly, you can see it get progressively worse as I click up through the "gears".
  19. JRP3

    Limited Slip Differential for Belt Drive ESkates

    Apparently VESC does have some traction control option, don't know how it's implemented, some people say it works others say not so much.
  20. JRP3

    Limited Slip Differential for Belt Drive ESkates

    It's an Exway Atlas board running Hobbywing components, not sure what their controllers are, but wouldn't it be the opposite, i.e. speed control would have all motors turning at the same time and speed regardless of torque, while torque control would cause the wheel with the least traction to...
  21. JRP3

    Limited Slip Differential for Belt Drive ESkates

    I came up with one possible solution to low traction wheel slip since I haven’t been able to find a dual shaft motor. I made a “limited slip differential” for the board so I could have the 2 front motors turning together when taking off in low traction situations. Seems to be working pretty...
  22. JRP3

    I had a lithium fire (my own fault)

    There isn't metallic lithium in lithium ion batteries.
  23. JRP3

    Yamaha YZ250F

    How much does all that weigh, and wouldn't it be better to just mount it on the bike? Thinking about your neck.
  24. JRP3

    Anyone make a larger hub motor for electric skateboards?

    That's a good point, but then I'd need to make my own skateboard trucks, or adapt existing ones, both of which are possible of course.
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