Recent content by dodjob

  1. dodjob

    Bafang M500/M600 thread

    Hey, the vesc isn't sensible to "slow" voltage rises, but to "spikes". they happen when you plug the battery in for example, or when the back emf, for some reason cannot find a consistent load. Trust me there, 60V-able drv were the biggest brake to vesc-for ebikes :) Concerning the current and...
  2. dodjob

    Bafang M500/M600 thread

    Sorry to barge in the topic a bit widely but two things need to be mentioned: -Flipsky is not a company very famous for it's marketing claim fairness and ethical behaviour. -The biggest issue with the 6.7 mini is that vesc are VERY sensitive to voltage spikes (like really really :) ) a 60V...
  3. dodjob

    FLIPSKY new 20s 100A tiny controller (vesc based)

    And is there someone here having had success with the PAS on a 75100? I'm a bit stuck right now and may need a bit of help :) Gruß, H.
  4. dodjob

    FLIPSKY new 20s 100A tiny controller (vesc based)

    Hey, Are you using original firmware? I got issue with observer on last firmware (6.0b) but needed it for the lisp integration. Seems they changed a bunch and for our hardware that may not be perfect. Anyway detection with 5.3 firmware works all the time here (it's a standard v202).
  5. dodjob

    New "Lingbei MM28.250 torque sensor mid drive"

    Hi there :) I indeed didn't test the Opensource firmware on them :). For the version, do you know when they start to build the blue gear? The last unit I tried is about 6 month old directly from them for test purpose. As stated before, the motor isn't bad here, just low(er) torque and Very...
  6. dodjob

    New "Lingbei MM28.250 torque sensor mid drive"

    The ones I have here are definitely way way louder than the lingbei, even with regrease. The lingbei is really more silent., Specially at low rpm. The bbshd is the boss for silence, but too, way to much power per wh at low power.
  7. dodjob

    New "Lingbei MM28.250 torque sensor mid drive"

    @slowco that's an excellent proposition. The tdsz2 is very nice for range. It's pretty noisy and lack torque but it does make wonders for battery consumption :)
  8. dodjob

    New "Lingbei MM28.250 torque sensor mid drive"

    The lingbei aren't long range mids. They tend to have a high consumption at lower assist level. I use them strickly on cargo now. They are absolutely perfect for this. For reference, with a 800wh battery the range on a emtb used on streets is about 70-80km. (At 25-30kmh) With a 500wh, and use...
  9. dodjob

    Most efficent propulsion?

    Mate! I get satisfaction in being less stupid than a day before 😅🙈. I did this the last month by showing myself how wrong all my "common sense" was as soon as it had something to do with hull efficiency 😅 So please don't take my mentions as granted 🙈. From what I've read (and searched) you have...
  10. dodjob

    Most efficent propulsion?

    Cats can halve the weight/hull indeed, but again, pretty sure I've seen lots of comparison on displacement hulls giving close to no difference seeing that weight/length ratio is maintened . That said, as soon as it's brainfucking area, I would be glad to be shown wrong 😅☝️
  11. dodjob

    Most efficent propulsion?

    These are planing hulls, it's a different story :) again, in displacement, only length and weight ratio prevail (with some minor tweaks with hull geometry) :)
  12. dodjob

    Most efficent propulsion?

    For the same length no. More or less for displacement hull the rule is the longer, the lighter prevail. Check human powered races legislation (like rowing), what they use as restrictions are the parameters that influence the 300-500W power-field :) Solar boar are often cats because you can...
  13. dodjob

    Horsepower needed?

    Sorry mate, I thought I gave you the link already, epic fail 😅🙈 There you go: http://www.psychosnail.com/boatspeedcalculator.aspx It's pretty straight forward, but give very nice ideas for displacement and semi displacement hulls :) The guy also made some real life comparison, which is great...
  14. dodjob

    Horsepower needed?

    Tried the info you gave in the mentioned calculator, and didnt come at all at the same results :)
  15. dodjob

    Horsepower needed?

    Take a look at this calculator. If you don't plan to plan, this will give you a pretty solid estimation. Also beware that most of calculator are talking about propulsive power, the propeller design (take a look at javaprop) will show you the motor power and the unfortunately huge losses on...
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