Search results

Date Relevance Most replies

  1. W

    What is a good budget spot welder?

    Not in the US you can't. The kWeld full kit from Grid Rewired is $246 plus shipping plus the ultracap module is another $195, kSupply kit is $125. Oh, if you want a housing for it that is another $26 and $29. So, $621 plus shipping and tax. That "AWithZ" 14-kilowatt unit that I linked above is...
  2. W

    What is a good budget spot welder?

    Ahh I missed the fact that you are looking for something that can handle .3 nickel or nickel/steel. I suspect you'll have to move up to something like the kWeld or one of the more "professional" Capacitor based spot-welders. Such as this one from Seesii: https://a.co/d/h4v84XM Or this...
  3. W

    What is a good budget spot welder?

    Starting off with the recommendation for a type (not necessarily the seller, I didn't buy from this one): 6.5V-16V 99 Gears Adjustable Spot Welder This has been the best I've tested so far. I am using with a 16AH SPIM08HP 3S pack. With that pack I have successfully welded .2 quality nickel...
  4. W

    New battery killer TENPOWER 40TG ??

    I think the -10 is a brag about their low temp performance, not a required operating temp.
  5. W

    48v Starter / generator motors (BSG alternator)

    Well that explains a lot! I can’t believe I missed that during my digging. No worries on the VESC- I have plenty of use for it. At least I know what I’m dealing with now. I’m surprised it worked as well as it did before the observer falls behind.
  6. W

    48v Starter / generator motors (BSG alternator)

    Well breakthrough- I should have read that 5.03 thread better. Once I disabled Phase filters it fixed the issue and now throttle is much smoother without any backwards start. However motor and PID settings are requiring a lot of tweaking. My current motor settings that largely match what it...
  7. W

    48v Starter / generator motors (BSG alternator)

    That’s what I suspected but with how sloppy it looked I wasn’t for certain. Thanks for confirming. I switched to 5.03 but unfortunately if anything it made it worse. I have figured out that PID mode doesn’t seem to be properly functioning at all. At default settings after the FOC wizard it...
  8. W

    48v Starter / generator motors (BSG alternator)

    Great info, I’ll give that a go! The only concern I have on the GO-FOC is a messy solder job on one IC (buck converter). Several pins are bridged, but not sure if that’s actually an issue or intentional. The IC is a TI LM5161 PWR, spec sheet here: https://www.ti.com/lit/ds/symlink/lm5161.pdf...
  9. W

    48v Starter / generator motors (BSG alternator)

    Update: I picked up a GO-FOC HV200 VESC controller- I picked that up based on some analysis of available VESC units, the HV200 has a $ per Peak kW of $8.83, which is the cheapest by far for a >100 amp capable VESC. Well there is a 75v 300/450amp unit on Aliexpress, but no idea when I'd actually...
  10. W

    48v Starter / generator motors (BSG alternator)

    Oh and I totally agree that board isn’t going to ever work again. But I had come to that conclusion early on- I had no chance of hacking the interface and the only way to really learn about it’s guts was a total tear down. If I picked up another one of these I’d consider trying to utilize the...
  11. W

    48v Starter / generator motors (BSG alternator)

    You are spot on there- thanks for the reminder, I wondered about that when I was typing up the other post while waiting in line at the pharmacy. I just checked it and it’s a ADA 4571H. Which is a “High precision 180° angle sensor”. https://www.analog.com/en/products/ada4571.html I’m not...
  12. W

    48v Starter / generator motors (BSG alternator)

    The biggest thing I was hoping to find but haven’t is hall sensors. This appears to be a sensorless setup? I suppose it would rarely be starting from a dead stop with a significant torque load. Though it is used to start the ICE, for start/stop functionality. There are sensors at each phase...
  13. W

    48v Starter / generator motors (BSG alternator)

    Well the saga of tearing apart things I don’t fully understand continues. I have now taken it apart to bits and pieces. Let’s just say it does not disassemble easily, it drew blood, as is tradition. I’m sure someone out there that’s familiar with these things is raging at my terrible...
  14. W

    48v Starter / generator motors (BSG alternator)

    I took the wrong strategy for disassembling from the top. Ended up taking out the capacitor (ruined it) and then figured out I have to remove the back plate anyway. I have to separate each welded phase joint to safely remove it. I’ll post more photos once I do so. I decided to sleep on it...
  15. W

    48v Starter / generator motors (BSG alternator)

    Looks like those are 8 TOLT MOSFETs per phase. But 4 high side and 4 low side? I’m not familiar with that configuration. If you look at each phase set, there are 4 contact pairs coming from under the capacitor and with each the upper is positive and the lower is neg. So on closer inspection...
  16. W

    48v Starter / generator motors (BSG alternator)

    Well good news is I received it quickly. The other news is it definitely doesn’t have the Infineon controller. Attached are some photos. I’ve never seen anything quite like that. The three terminals coming out of the back plate are obviously the three phase connectors. The black square in the...
  17. W

    48v Starter / generator motors (BSG alternator)

    Good info, I might reach out to Infineon on this also to see what they have that goes with it. Why do I care? Well does it change the story if it is free? This unit appears to be built into the 3.6l V6 “etorque” BSD built for Chrysler from Continental. You can purchase one of those whole BSD...
  18. W

    48v Starter / generator motors (BSG alternator)

    Just found this manual from Infineon (assuming this is the module on my motor): https://www.infineon.com/dgdl/Infineon-20180802_AN-Power_stage_of_48V_BSG_inverter_V2.2-AN-v01_00-EN.pdf?fileId=5546d46265487f7b0165a3863b8e5bcf What is interesting is it’s not a controller. Just an inverter board...
  19. W

    48v Starter / generator motors (BSG alternator)

    I’ve been thinking about using an alternator as a motor for a go-cart for a number of years. There have been a lot of recent projects, including a few popular videos on YouTube. However I started looking into higher voltage alternators and eventually into the category of “alternators” for mild...
  20. W

    Molicel P42a cycle test

    Yeah I heard they were decent low temp performers and the spec sheet seems to reflect that. Good to get confirmation. I’m thinking of using them in a snow mobility application. FYI Molicel has made low temp specific batteries- including for NASA...
  21. W

    Molicel P42a cycle test

    Thank you for testing that! Looks like the low temp didn’t affect discharge too badly and it warmed up pretty quickly.
  22. W

    Molicel P42a cycle test

    Yes- I suppose for my purposes I’d be interested in seeing the cells start at somewhere between -40 and -20 and then how quickly they raise to higher operating temps and what that impact is to total capacity.
  23. W

    Molicel P42a cycle test

    Can you test cell capacity at lower temps? At and below -0 C? These are reported to perform well at low temps but I haven’t seen testing confirmation.
  24. W

    8s Samsung 26f packs from batteryhookup - help

    Yes you should be able to easily remove them from the wrapper as long as you’ve disconnected the end welds. Why not use the existing BMS?
  25. W

    Need Urgent Help Finding a Specific Design of Nickel Strip

    Does it have to have a 9x10mm hole or would a 10mm square hole work? Looks like there are lots of nickel strip providers that could sell you 27mm wide strips of nickel, then you could use a 10mm punch and punch out the holes, like This...
Back
Top