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  1. H

    BBS02 loud noise once per pinion rotation

    No, it was something different. As mentioned before, once per Nylon gear rotation. I just uploaded it here again: https://gemoo.com/tools/upload-video/share/628500331731542016?codeId=v67z44WplE88l&card=628500327075864576 In the meantime I replaced the Nylon gear (although motor was completely...
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    BBS02 loud noise once per pinion rotation

    Today I ran my BBS02 the first time. Unfortunately it has a loud noise once per pinion rotation. Video below. I think the nylon gear is on the same shaft as the pinion, so it is also once per nylon gear rotation. The motor is new, just regreased. Video: Watch V_20240229_232626_ES3 | Streamable...
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    BBS02 Lekkie Grease Port

    I replaced the original drive cover of my BBS02 by the Lekkie drive cover. The BBSHD cover grease port can be closed by screw. The BBS02 cover grease port however not. How did you guys seal that grease port while riding?
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    Portable programmable CAN Module

    Thank you! Do you have experience with this? How can it be programmed?
  5. H

    Portable programmable CAN Module

    I am looking for a portable programmable CAN module that continiously reads some parameters from the ASI controller while riding multiple times per second. It needs to be compact and programmable, so that when an if-statement gets true, it will change a parameter in the controller. So for...
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    Old ASI BAC4000/BAC8000 (2019 or earlier)

    It does neet not need to be exactly from 2019. If it is still a V5 controller it is fine.
  7. H

    High Current Connectors with Plastic Housing

    I have been using ec8 many years ago. That is not what I am looking for. I am looking for single connectors with a plastic housing like the XT150 and AS150, but with a higher current rating.
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    High Current Connectors with Plastic Housing

    Does anybody know high current single connectors with plastic housing like the XT150 and AS150, but for a higher current? All 8mm or thicker gold plated connectors I know either aren't single connectors or don't come with a plastic housing.
  9. H

    Hall Sensors vs. Encoder

    For a large DD hub motor with 23 pole pairs, do you see any advantage in using an Encoder (maybe at the inside near the axle and with a magnet on one sidecover) instead of bipolar hall sensors? Launch from standstill works very good with hall sensors. Would using an encoder be even superior? On...
  10. H

    Shielded Hall Wires for large DD hub motor

    To answer the question asked earlier: The vibrations feel like commutation errors. No, the vibrations/jitter in sensorless occur probably because senserless control just does not work good when the stator is already in saturation. It is different to what occurs in hall based mode. In sensorless...
  11. H

    Shielded Hall Wires for large DD hub motor

    I also have vibrations around the same rpm range in sensorless mode, but only with field weakening enabled. And sensorless mode does not work good at very high phase amps (when stator comes into saturation), so I am using hall based mode at the moment. So what I wrote in this thread is only...
  12. H

    Shielded Hall Wires for large DD hub motor

    The vibrations only occur only if phase current at that moment is above approximately 350A and they only occur within a certain rpm range. The strange thing is that they don't always occur. Sometimes even at higher phase amps there are no vibrations. The hall wires travel about half a meter...
  13. H

    Shielded Hall Wires for large DD hub motor

    Thank you. How would you connect the copper shield to a wire? Just leave some excess shield and twist it so it will look like a wire and solder it to a wire which is connected to B-? I did not find suitable shield solder sleeves for this size.
  14. H

    Shielded Hall Wires for large DD hub motor

    Usually for DD hub motor outrunners, the hall wires go parallel with the phase wires. I sometimes have some vibrations in certain speed ranges at very high phase amps in hall based mode, so I would like to try shielded wire for the hall wires. What would you connect the shield to?
  15. H

    BBS02: How to pull bearing from motor shaft

    How can I pull the bearing from the motor shaft? There is no way to get around the bearing with a 2 or 3-arm gear puller. Picture below:
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    Which Connector is this (BBS02) ?

    Which connector is this exactly? I don't find this connector at JST. It is used for example in a Bafang BBS02 for the 6 pole connector on the Hall PCB. Pitch is 2.50mm or 2.54mm.
  17. H

    Boosting my Bafang MG310_Std

    I would recommend going to a 48V battery. That's a very good match for the G310 with 10T (=standard) winding and 26'' wheel and it will run efficiently in the speed range you mentioned. For the G310 it is important not to go above 35Nm (which is about 35 phase amps for your motor) because the...
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    Eliminate Hall Sensor Noise

    My question is only how I could eliminate or significantly reduce this noise on the switching frequency. We are not talking about induced currents from the phase wires here. The problem with vibrations at some rpm ranges (switching frequency dependent) at high phase amps might be related with...
  19. H

    Eliminate Hall Sensor Noise

    Here is a little video: https://files.fm/u/ngq4xbax2 The frequency is the switching frequency of the controller. In this video, some torque is commanded to the motor by slightly engaging the throttle, but I hold the bike with the brake so it's not turning and hall is not changing state. The hall...
  20. H

    Eliminate Hall Sensor Noise

    I have vibrations/stuttering at high phase amps at certain rpm ranges which vary with switching frequency. This might be because of commutation errors caused by hall sensor noise. When measuring the hall sensor output voltage while the motor is engaged (but not turning. Hall state is not...
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    Old ASI BAC4000/BAC8000 (2019 or earlier)

    I am looking for an older ASI BAC4000 or BAC8000 which was manufactured in 2019. Please send me a message if you can offer me one of these. No wiring required.
  22. H

    Hub motor axle removal

    Looks to me like the axle is a press fit like on most direct drive hub motors. I would just remove the wires and then press the axle out on a hydraulic press.
  23. H

    GNG / CYC X1 Pro 3000w

    You need to save settings to flash. In the CYC app it's the arrow in the top right corner.
  24. H

    BBS02 and suspension grease

    Why do you want to use Mobilgrease 28? Wouldn't Mobilith SHC 100 be superior?
  25. H

    Where to get ARMCO-Iron

    I am looking for a source to buy ARMCO-iron (nearly pure iron) to machine a back iron ring out of it. The ring will have an inner diameter of about 205mm, and will be 50mm wide and 4mm thick. Unfortunately here it seems to be nearly impossible to get suitable material.
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