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  1. Replies
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    I've used lots of the propdrives, happy with them

    I've used lots of the propdrives, happy with them
  2. What wheel size are you running? The Saturns...

    What wheel size are you running?

    The Saturns from Ellis (discontinued) were 16:1 and a good match to 775. Give or take thats what the old drill motor setups were

    I use 6:1 on 100mm with NTM...
  3. One way I check is emachineshop Import the dxf -...

    One way I check is emachineshop
    Import the dxf - it seems really good at finding issues in what should be a clean file
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    Agree with what the others have said Keep it...

    Agree with what the others have said
    Keep it simple and fail fast - trying different designs and finding your style is important
    Getting something together and driving experience is more important...
  5. Thread: Chain Drive

    by shakesc
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    Chain is a bit heavier but has a bit more...

    Chain is a bit heavier but has a bit more tolerance to misalignment to belts
    ratio is easy - number of teeth sprocket a / number of teeth sprocket b

    You need to calculate the sprocket distances...
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    I run Fusion 360 on my Macbook Pro (2017) Works...

    I run Fusion 360 on my Macbook Pro (2017)
    Works fine
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    That would be silly ;) Working on a heavy...

    That would be silly ;)

    Working on a heavy version
  8. Replies
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    and Spur 4 runs with 4 5060's :)

    and Spur 4 runs with 4 5060's :)
  9. Thread: Drive system

    by shakesc
    Replies
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    Found the link ...

    Found the link

    https://www.facebook.com/ellis.ware.9/posts/1678749245527646

    By all reports its physically small for a heavy
  10. Thread: Drive system

    by shakesc
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    On Sandstorm its a really small package for a...

    On Sandstorm its a really small package for a heavy
    They are Maytechs either 50 or 63mm cans - one per wheel and a low ratio, something like 4.4 : 1
    There is a write up somewhere, maybe instagram
  11. Thread: Drive system

    by shakesc
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    2,749

    Have a look at what Ellis did with Sandstorm -...

    Have a look at what Ellis did with Sandstorm - good example
    http://king-of-bots.wikia.com/wiki/Sandstorm
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    I've had great results out of propdrives 50-60...

    I've had great results out of propdrives 50-60 270KV on 6:1 using 100mm wheels. You could use a smaller propdrive and still have a great robot. I had 2 50-60 in a 4 wheel drive bot -hilarious to...
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    yes but if you are running drill motors about...

    yes but if you are running drill motors about half that capacity would do you fine
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    I would contact the event organiser directly and...

    I would contact the event organiser directly and see how they are interpreting the rules
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    There is a steel frame core which the HDPE, hubs...

    There is a steel frame core which the HDPE, hubs etc bolt onto
  16. Replies
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    http://www.enertionboards.com/electric-skateboard-...

    http://www.enertionboards.com/electric-skateboard-parts/FOCBOX-programmable-brushless-motor-controller/

    or full on Vedder v6...
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    No idea, there is a ESC recommendations thread in...

    No idea, there is a ESC recommendations thread in the heavyweight section
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    The other benefit of 270kv is that it gives...

    The other benefit of 270kv is that it gives better low speed control

    You are not short of power with 4 x 50-60's in a feather but with 380kv motors it was a bit of a straight line missile
  19. Replies
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    They were propdrive v2 50-60 380kv but changed...

    They were propdrive v2 50-60 380kv but changed them to 270kv. Gives lower speed but more torque
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    They come fitted ...

    They come fitted

    https://www.banggood.com/Racerstar-6368-BRH6368-280KV-6-12S-Brushless-Motor-For-Balancing-Scooter-p-1117659.html

    They also come unsensored - had one of those sent by mistake....
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    The other thing I have been working on is a...

    The other thing I have been working on is a heavyweight Spur 4

    Made up 4 drive pods using contact wheels, 6368 motors

    They use HTD5 belt and mod 2 gearing. This allows me to get the packaging I...
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    Its been a while Ran Spur 4 at a live event...

    Its been a while

    Ran Spur 4 at a live event with the temporary wheels , they were awful
    It also broke a pinion weld and went down to 3 wheel drive :(

    Rewelded the pinion
    Replaced the wheels...
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    Spinners cannot be full speed in anything but the...

    Spinners cannot be full speed in anything but the RW arena - you won't have Carbide or Nuts at full pelt. Axe bots like Thor and Terrorhurtz will be at max.

    Flippers like Iron Awe are quite common...
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    Just be careful with Chinese Amps, they are more...

    Just be careful with Chinese Amps, they are more powerful than the metric version ;)
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    Have a look at ...

    Have a look at

    https://nutsandbots.co.uk/product/feathertwo-dual-channel/

    https://nutsandbots.co.uk/product/feathertwo-single-channel/

    Should be fine as it looks like you are running on...
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