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  1. Replies
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    Pity to hear Tony.

    Pity to hear Tony.
  2. You're right, it was a type, it's the GRA rules....

    You're right, it was a type, it's the GRA rules. (also, edit'd the posting)
  3. Nebelwerfer uses a 90° gearbox, 2-1 ratio. And...

    Nebelwerfer uses a 90° gearbox, 2-1 ratio. And the biggest brushless allowed by the GRA rules.
    Machine runs both sides , with 80mm wheels.


    https://www.youtube.com/watch?v=jDzBDnd4QwY
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    Still available?

    Still available?
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    Not for me then.

    Not for me then.
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    Only 1? And what gearratio?

    Only 1? And what gearratio?
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    Team RCC is using the Zippy Compacts for a while...

    Team RCC is using the Zippy Compacts for a while now. No complaints there. These do the job fine.
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    The standard powertool batteries are large and...

    The standard powertool batteries are large and heavy compared to what they are capable of.
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    Lexan and macrolon are brandnames of...

    Lexan and macrolon are brandnames of polycarbonate. The stuff is harder but more brittle than HPDE.
    The only reason I would use polycarbonate is the see trough capability.
    For stiff structural...
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    In what kind of timeframe and what powerclass? ...

    In what kind of timeframe and what powerclass? Bosch750 equivalent, or LEM Power?
  11. https://www.youtube.com/watch?v=PWdJGjxgg4w

    https://www.youtube.com/watch?v=PWdJGjxgg4w
  12. Looks very much like the Original version of...

    Looks very much like the Original version of Kashei.
  13. Thread: Drive system

    by maddox10
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    1,886

    Yes, and that is the advantage of brushless...

    Yes, and that is the advantage of brushless outrunners. More efficient, and if chosen well, not that expensive per Kw on the wheels.

    The days of £1000 for 5Kw are gone.
  14. Thread: Drive system

    by maddox10
    Replies
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    1,886

    So, 4 motors . As I stated at the start of...

    So, 4 motors . As I stated at the start of this topic.
    If I combine the data I can find easely on Sandstorm,
    24mph(almost 40kph)
    4-1 gearratio
    Guess on 5" wheels.
    Maytech 50 or 63mm...
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    Try Pirtek. https://www.pirtekusa.com/

    Try Pirtek.
    https://www.pirtekusa.com/
  16. Thread: Drive system

    by maddox10
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    1,886

    BIG brushless, with heaping piles of power. Not...

    BIG brushless, with heaping piles of power. Not some weedy 500W wheelchair motors.

    I guess something like the Rotomax 80CC or bigger.


    Bananaking, a Russian machine, uses Revolt motors, and...
  17. Thread: Drive system

    by maddox10
    Replies
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    1,886

    The NPC-02446 motor is advertised as "great" for...

    The NPC-02446 motor is advertised as "great" for lightweights.

    The data from Robot Marketplace gives this motor a 500W rating.
    You can get a heavy moving with those, but you won't be happy with...
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    Reverse is questionable, and the max cell count...

    Reverse is questionable, and the max cell count is 3S (12V peak)
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    Flash an alternative yourself?

    Flash an alternative yourself?
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    Caveat Emptor.

    Caveat Emptor.
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    https://www.youtube.com/watch?v=MzakqMAaHME

    https://www.youtube.com/watch?v=MzakqMAaHME
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    Who is Carlo? 2WD is less strain on the drive....

    Who is Carlo?

    2WD is less strain on the drive. True. Small wheels can work with a low ratio of gearing, but the machine won't be fast. If you aim for a fast heavyweight, you'll have to look for...
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    The E30-400's are comparable to 300W wheelchair...

    The E30-400's are comparable to 300W wheelchair motors (half a Bosch GPA750). But with the big difference that your avarage heavier wheelchairmotor can be overvolted and survive.
    Ampflow motors...
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    Yes, propdrives can be a good motor for a...

    Yes, propdrives can be a good motor for a feather, and we have decent results with a SimonK flashed Turnigy TZ85
  25. Thread: Drive system

    by maddox10
    Replies
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    1,886

    If you want to replace a 3 kg motor (Bosch 750)...

    If you want to replace a 3 kg motor (Bosch 750) with a 600 gram motor (propdrive 5060) you'll need more of'm.
    Also, smaller motors run faster (the slowest propdrive is 270 KV, 2 times faster than...
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