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  1. nowholeself

    Resources for DIY Inrunner Winding?

    Can any of y'all offer links to detailed threads or resources on how to go about wiring ones' own inrunner? I've been searching here but haven't come across anything yet. Thanks in advance.
  2. nowholeself

    DIY Bottom Bracket Torque Sensor?

    Thank you for your detailed replies AmberWolf. I'll likely be sticking with an ASI BAC855 controller, which I assume can accommodate the sort of signals the TSDZ2 would be sending. I'll be sure to check out that thread. If you know of a page or section in that thread that gives a sort of...
  3. nowholeself

    DIY Bottom Bracket Torque Sensor?

    I'd like to fashion my own bottom bracket torque sensor. The bottom bracket tube is 46mm ID, though I can go bigger if necessary. The current spindle is 19mm, though I may switch to a 22mm. Ideas? Threads?
  4. nowholeself

    VESC Field Weakening

    I've still been unable to load the field weakening controls on my VESC. Can someone provide a step-by-step?
  5. nowholeself

    VESC Field Weakening

    This 4000-series Astro motor is very quiet. I've seen videos of noisy systems utilizing the 3000-series Astro motors. But all of them were being reduced by hypoid gears. I'm using belts and well-enclosed planetary gears. So perhaps the noise associated with Astro motors is just the noise of the...
  6. nowholeself

    VESC Field Weakening

    Thanks for the prompt response! I've seen that thread, actually, as well as the Github. There's a bit of a learning curve for all of the terminology. I'll have to spend some time digging into it to fully grasp everything that's going on. Fwiw, my first iteration of this ebike utilized a...
  7. nowholeself

    VESC Field Weakening

    I've just switched from an ASI BAC800 to a VESC 6.6 on my ebike. So far the VESC is working well in FOC mode. Among other things, I've been able to greatly improve my acceleration. But I'd like to be able to field weaken as on my ASI. This is not a feature that is available in the VESC Tool. But...
  8. nowholeself

    Settings to dial-in the Talon 120hv?

    I'm experimenting with the Talon 120 for my Neumotors 8025 16 pole outrunner. It already fires the engine up just fine, and I'm sure I'll get it dialed-in eventually. But if anyone has any advice or knows of any threads for fine-tuning, especially in regards to the throttle, I'd love to know...
  9. nowholeself

    Electric motorcycle motor choice

    You'd almost certainly need sensors. One way to accomplish this is a Timken setup for the 12 poles of the Neu 4400 series. They're available here: https://www.timkenencoders.com/en-us/m15h-high-resolution-modular-magnetic-encoder . I have yet to try these encoders. But I plan to use them on a...
  10. nowholeself

    Cog manufacturer?

    :roll:
  11. nowholeself

    Cog manufacturer?

    I need a 14mm keyed bore 12 tooth cog for a bicycle chain (preferably a 3/32" bike chain, but I'll settle for 1/8"). As far as I can tell, it doesn't exist. At least, it's not available online. I also need some even more exotic cogs machined. But I can't seem to find anyone to make this stuff...
  12. nowholeself

    Neumotor 8057/75 middrive project, belt drive, adding halls, 10kW+

    I was hoping to give an update on how well the halls work. But so far I've had little luck getting this engine to work with the ASI BAC800. I can get BacDoor to spin the motor up to around 3500rpms with a 7759rpm setting using 'motor discovery' in both unsensored and sensored mode. But trying to...
  13. nowholeself

    BAC800 vs. Neumotors 8025

    The 'instantaneous phase over current' fault message may be a red herring. I made it go away by increasing the overload continuous current threshold. But the same problem still occurs: trying to spin the engine with anything greater than a 7759 rpm setting results in a glitch, as does the use of...
  14. nowholeself

    BAC800 vs. Neumotors 8025

    I suppose it's possible that Neumotors accidentally wound this 8025 to a different kv. But that seems unlikely, especially considering that when I run the motor discovery using a 7759 or less rpm, it gives me an autotune rpm in the 8000's (8729rpms to be exact). As for the halls, yes they could...
  15. nowholeself

    BAC800 vs. Neumotors 8025

    I'm attempting to use a BAC800 to run a Neumotors 8025, 150kv engine with hall sensors. So far, I can get BacDoor to run the motor using 'motor discovery' in both unsensored and sensored mode with the following general motor settings: Current: 90 RPM: 7759 Voltage: 56 Power: 5000 Sensor type: 0...
  16. nowholeself

    Neumotor 8057/75 middrive project, belt drive, adding halls, 10kW+

    They charged $70 to install the halls on an engine I already had. I suspect they'd charge less to sell an engine made that way from the beginning, though I don't know for sure. I agree that the hall sensor board is a bit too brittle and exposed to be usable in most circumstances. Fortunately, I...
  17. nowholeself

    Neumotor 8057/75 middrive project, belt drive, adding halls, 10kW+

    I'm still fussing with the ASI controller. So far so good. Here are a few photos with the rotor removed.
  18. nowholeself

    Neumotor 8057/75 middrive project, belt drive, adding halls, 10kW+

    Neumotors 8025 with factory installed hall sensors.
  19. nowholeself

    Neumotor 8057/75 middrive project, belt drive, adding halls, 10kW+

    Thank you for the offer. Talia from Neumotors mentioned to me a while back that they are now installing hall sensors on their 80-series motors. A little over a month ago, she offered to have the company install some on my 8025. I took her up on the offer, and immediately sent it in. But there...
  20. nowholeself

    Front freewheel torque: spragg vs pawl

    The star ratchet design is definitely cool. But unlike the csk35 spragg bearing, I am unaware of any star ratchet product on the market that can be as easily adapted into a front freewheel. In addition, I love the silence of spragg clutches, a feature not offered by other designs.
  21. nowholeself

    Front freewheel torque: spragg vs pawl

    Can a spragg clutch bearing like the csk35 take enough torque to work just as well or even better in a front freewheel design that is not driven by an engine, but rather just cranked by average human power? We know from the old Elation design that the csk35 is not enough to work in a front...
  22. nowholeself

    Neumotor 8057/75 middrive project, belt drive, adding halls, 10kW+

    My Neumotors 8025 has just arrived. It is so small! My original plan was to attempt to at least match, if not beat, the power of an ASI BAC800 controlled BBSHD. But can something so tiny really do that!?!? Maybe I should have gone with the 8038...
  23. nowholeself

    What's so bad about low impedence?

    The engine is a Neumotors 8025. It's 150kv with a torque constant of 63.789 mNm/a and .0177ohms. I planned to run it on a 52 volt pack max 90amp output to start with, but can add a bigger pack if need be. I make my own packs out of 21700 cells. No BMS. I balance charge (if that matters).
  24. nowholeself

    What's so bad about low impedence?

    Your thread was actually one of two that encouraged me to try out the Neumotors engines. I was especially excited to see your use of the ASI with them, since I had already had such excellent results with the BAC800 on my BBSHD. Granted, the engine I ordered - the 8025 - is one of the smaller...
  25. nowholeself

    What's so bad about low impedence?

    So I sent ASI an email about using their controllers with the Neumotors 80xx series engines, adapted with hall sensors. They responded that the motor is "one of those low inductance/impedence" motors, and indicated that it would be difficult, if not impossible, to make it work with their...
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