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  1. Replies
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    The NTM 5060 is a very useable motor. But I...

    The NTM 5060 is a very useable motor.
    But I tend to "ruggedize" them with glue for the magnets, and epoxy for the cable lead entrance.
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    Looks exactly the same as most Gravity style rams.

    Looks exactly the same as most Gravity style rams.
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    Gravity style Full Pressure ram

    For sale,

    80mm bore, 150mm stroke full pressure ram with 3 1/2" valves.
    To compare, this is 2.5 times more powerfull than Series 6 Dantomkia or Bigger Brother.

    And the full aluminium...
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    http://www.robots.ib-fink.de/fahrtregler4_5/fahrtr...

    http://www.robots.ib-fink.de/fahrtregler4_5/fahrtregler4_5.htm
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    There are a lot of cheap ESC's for cars that...

    There are a lot of cheap ESC's for cars that don't run backwards. or with reduced capabilities.

    And for Brushedd motors in Feathers, we started with the Robot Power products, at first the...
  6. Why go for cheap trow away brushed motors? There...

    Why go for cheap trow away brushed motors? There are enough brushless motors in a 540 or 775 size.

    Since we changed from brushed to brushless, we have a lot less motorfailures.
  7. If you're looking for a robust drivetrain, the...

    If you're looking for a robust drivetrain, the Banebots are the only commercial "lightweight" solution at the moment.

    Unless Ellis resurrects the Saturns. As those are to my feeling the better...
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    Pity to hear Tony.

    Pity to hear Tony.
  9. 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)
  10. 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?
  18. https://www.youtube.com/watch?v=PWdJGjxgg4w

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

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

    by maddox10
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    2,478

    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.
  21. Thread: Drive system

    by maddox10
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    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/
  23. Thread: Drive system

    by maddox10
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    2,478

    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...
  24. Thread: Drive system

    by maddox10
    Replies
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    2,478

    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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