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  1. E

    Post your e-board videos...

    No beaches, no palms, no girls - just real world eMTB tests! :wink: No belts or chains either. rrw4ERZslMo
  2. E

    Evolve Carbon AT with 50km+ range

    Thanks for your answer and you're right about the insulation, it might require plastic holders and additional stuff in between them. Which complicates it again. I was just uncertain if there are reasons from an electrical perspective against it. Keep up your professional work, I really...
  3. E

    Evolve Carbon AT with 50km+ range

    The concept is obvious, I understood that and that's how I'm doing them as well. For flexibility reasons I was thinking of connecting both rows at their end instead of connecting them in the middle with stripes. Something like this (sorry for the low quality drawing):
  4. E

    Evolve Carbon AT with 50km+ range

    Nice work. Just a question: you used to solder the middle section with the "butterfly mechanism" with nickel strips, are those connection also necessary from an electrical perspective or would it be ok to just connect the parallel packs in series without the middle connections between the packs...
  5. E

    Support on my 10S BMS

    The BMS is protecting individual cells from dropping to low, the VESC only reacts on the total voltage. :wink: Advantage of the VESC is the soft cut off though (start/end can be defined), which should be initiated earlier then hard BMS cutoff for overall voltage. But it should not be an issue...
  6. E

    Support on my 10S BMS

    The Evolve charger will work, your BMS can take up to 10A and your cells in 3p 7.5A. Recommended charging would be 2A for long lasting cells, but I think it should be ok.
  7. E

    Support on my 10S BMS

    It might make sense going this way (bypassing BMS for discharge), because any solution which allows regen brake power >10A flowing back into the batteries is more expensive and significantly bigger in size. And since good cells like the VTC5 or HE2 are almost never significantly out of balance...
  8. E

    Support on my 10S BMS

    It will work well, no problem with 42V. I'm using exactly the same with a 42V/2,5A charger.
  9. E

    Support on my 10S BMS

    The first one is ok and would also fit the chinch plugs form the charger I mentioned above.
  10. E

    Support on my 10S BMS

    Just an example below, "switch" connects then to VESC(s). "P" or "Discharging" means the cables going to ESC/Motor. You can use any 10s (42V) CCCV charger (with chinch plug for example), like this one: http://m.ebay.de/itm/131634833923?_mwBanner=1
  11. E

    Motor wires broken -> repair?

    And always use a fuse.
  12. E

    Loaded Vanguard 2015 Dual VESC / Rear 12S

    Just awesome! And a good job to get eSkating into the right perspective. Also it's nice to recognize a few familiar names. :D
  13. E

    10S custom skate ESC: testers wanted!

    Yes it works with 1.13, but why not upgrading to 2.15 with some enhancements also in regards to sensored mode?
  14. E

    VESC Configs

    That won't help, detection is not the issue, but the wrong firmware is. First time accelerating will kill the VESC then, so it's better make sure that the FW is correct before doing anything. Detection is the most reliable way to get the VESC operating correctly with your specific motor.
  15. E

    VESC Configs

    Yes, it kills the FETs and/or the DRV instantly during motor detection.
  16. E

    VESC Configs

    Just be carefull when updating the VESC to a new firmware, choosing the a vesc_default.bin from the wrong directory will definitely kill your VESC! So, for HW 4.7 chose the directory hw_460_470/VESC_default.bin, for HW 4.10 choose hw_410_411/VESC_default.bin. I'm not saying that this might have...
  17. E

    Kegel wheel hub ?

    You might have a look at esk8.de, we sell them too.
  18. E

    10S custom skate ESC: testers wanted!

    If you have not yet tried to upload a new firmware until now it could be that your VESC is not containing a bootloader which is required to upload a new firmware to your VESC. I know that there were some VESCs without bootloader (or not functioning ones) in the past. I was having four of those...
  19. E

    10S custom skate ESC: testers wanted!

    You might try the following on BLDC-Tool v2.8: - start BLDC tool 2.8 and connect USB cable to VESC - connect - Firmware Tab: choose Firmware 2.8 (in folder hw_460_470!) - hit upload (now you will be stuck, but no worries) - leave everything like it is (BLDC must stay where it is) - power...
  20. E

    10S custom skate ESC: testers wanted!

    I'm using a 48V power source and 4.10/FW 2.6. Need to test it with some other motors though, just to see if I could get similar behavior with the R-detection on FOC.
  21. E

    10S custom skate ESC: testers wanted!

    Sorry, didn't realize you have made the "Measure λ" part in your video. Does the motor spin up when you're doing this step?
  22. E

    10S custom skate ESC: testers wanted!

    That's what I have done, different sequence, other motor (6374/148kv): 0. BLDC detection with "delay" on (don't know if this is required) 1. Measure λ 2. Measure R and L 3. Calc CC 4. Apply (both of them) 5. Write config Does that change anything?
  23. E

    Newbie E-Board Build (advice needed)

    Yes, chaka's (ollinboards) VESCs are of good quality and 4.10 is the latest version with no issues.
  24. E

    Newbie E-Board Build (advice needed)

    Everything can be programmed through USB in the BLDC-Tool and since a bootloader is built in you're also able to update the firmware through USB. A programmer is not needed anymore.
  25. E

    Electric Bubble Gum board mk1

    The company which was founded went broke unfortunately (it was not his fault as far as I know). I'm still driving the bubblegum board, modified it with a VESC (and FOC now!) and it's still a lot of fun! Voodoojar posted all of the needed 3D-print parts on thingiverse, so it's not to difficult...
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