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    Teenagers e-skateboard for Christmas - On a budget

    Here. I showed the data where a longboard wheel has good characteristics with polished steel also. The coefficient of friction is a known and subject to dispute.
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    Boosted Boards warns of battery overheating

    Boosted switched from liFe? Seems like they took on a lot of risk without very much benefit since they didn't increase the size of the battery.
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    cut out 9" from E300 razor to race around my oval track.

    How do you like jbweld for the tabs now? Do you have any pictures of this rig? Thanks
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    Teenagers e-skateboard for Christmas - On a budget

    I do agree that, talk is so much wind, real world results is where the urethane hits the road. I'll could make it, why don't you give me some incentive? You name the parameter of a design test, I'll let you know, if I think i can do it, and my small fee for the effort and video demo. You're...
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    Teenagers e-skateboard for Christmas - On a budget

    Ok, would love to see video of you pushing at 23mph for even 3 min, You lost all credibility with me on that. 8-10 mph measured MPH is squarely in the design envelope range of scooters, hoverboards, under $400. ( technically most of those are listed at 13 and over as well. ) And it's actually...
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    Teenagers e-skateboard for Christmas - On a budget

    I used a design envelope, and you do not fit it. You're not 8 to 12-year-old under 100 pounds. And I specifically mentioned that a kid should be able to run out Whatever top speed the board goes. You're an adult, not a kid, why would you want to fit in this design envelope? It's like saying...
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    Teenagers e-skateboard for Christmas - On a budget

    Friction Chart. Urethane, which is what skateboard wheels are made of, is such an appropriate material for friction drive that it is used for friction drive. Pushing around paper, metal rollers, plastic etc. and in case it's not obvious, the duro, we use for longboard wheels is just dandy for...
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    Teenagers e-skateboard for Christmas - On a budget

    You said "bad idea", "no traction", and "melt the urethane". Despite what you're saying now, clearly you said it would not work. I'm glad you said you had no experience and were imagining it but, your imagination is wrong. Laugh all you want. Edit: it's just really sad when somebody with zero...
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    Teenagers e-skateboard for Christmas - On a budget

    It's slightly less, but not in any meaningful way, considering it's stated as an approximation. For every single revolution of the motor, The wheel moves 9.4mm, and if you know the circumference of an 83mm wheel, how many times does the motor need to turn to make one revolution of the wheel.
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    Teenagers e-skateboard for Christmas - On a budget

    Maybe you missed this. The gear ratio is around 30 to 1 If you use an 83 mm wheel, it makes sense for you to understand what's going on before you say something won't work.
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    Teenagers e-skateboard for Christmas - On a budget

    You're wrong, I have no desire to make something for who's under 80 pounds but, it's definitely workable and you don't seem to understand gearing very well. Is a great from a dead stop, duh, NO. But much of can be done with only a few tens of watts. It's not spinning at the same place, so...
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    SKATEBOARD video & gps 23 mph

    Welcome back!
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    Teenagers e-skateboard for Christmas - On a budget

    Does nobody ever read anything? Or am I really sucky at communicating? I'm pretty sure there's no ambiguity in "direct Drive, the shaft presses against the wheel." Also, I provided the calculations for you in graphic form. 1:1 drive use any wheel size the speed is the same. The engineering...
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    Teenagers e-skateboard for Christmas - On a budget

    http://www.banggood.com/Racerstar-F540-Waterproof-Brushless-Motor-45A-ESC-For-110-Buggy-Racing-Cars-p-1056319.html?rmmds=detail-left-viewhistory This would work as well for a super budget build. You don't have a lot of friction area, so it can (and should) slip under severe use, however that...
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    Teenagers e-skateboard for Christmas - On a budget

    You would prefer 6s or better. for a conventional belted geared setup. http://www.banggood.com/Racerstar-4076-Brushless-Waterproof-Sensorless-Motor-2000KV-120A-ESC-18-Cars-RC-Car-Parts-p-1080781.html?rmmds=search This would be run as a direct drive, no belts, the motor shaft simply presses on...
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    Simonk firmware for E-skate board.

    Not that I can see, However, Simonk does support Car signals, braking and reverse. https://github.com/sim-/tgy Here's a 6s Esc for $10, which could be suitable for a penny board, going under 10 or 15 miles an hour...
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    VexPro Ball-shifted 2 speed, Left Side Drive Project

    Justin, I think you might be wrong about th 190kv being optimal.... I believe that mainly applies to usage for skateboards And the gearing that will fit on a E-board. I don't see any reason it shouldn't be able to run a much higher kv motor. I could be wrong, switching speed, electrical rpm...
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    Reduce noise brushless RC motor

    Where are those motors avail?
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    e-longboard build

    Agreed! Super start.
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    LINKY - Foldable Electric Skateboard

    There's very little hope of your board being usable transportation for anyone that heavy. People don't pay $1000 for something that has a poor experience, and I don't think they could have a very great experience if they are that heavy, the board will die, and certainly the battery and motor...
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    LINKY - Foldable Electric Skateboard

    Free American advice, change the Name to Linki. less of a toy like connotation and gives a fashionable euro feel. We put Y on the end of toys and childlike words in English.
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    LINKY - Foldable Electric Skateboard

    Good stuff! I just hope you manage expectations For heavy people in general. It would suck to have issues because you don't know how heavy some of the world is!
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    LINKY - Foldable Electric Skateboard

    At 25% funded already, this looks like it will be funded. I think it should be pretty cheap to manufacture as all the parts are custom, and in volume, that beats paying loaded for a board, caliber etc. What's the watt hours Linky? 18650 or lipo? Wheel diameter?
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    2x rear wheel drive with 1 motor

    Do you have a build thread that board, looks great!
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    Electric Freebord (LEIF)

    I'm guessing, that one of the things that they are not showing is the drive wheels are belted and connected, that way they are always facing the same direction. You can see there is considerable drag, rotating the caster. If you wanted to do this quick DIY style, it would make sense to have...
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