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  1. #41
    Knows Whats Up! Sage Oz's Avatar
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    There are many RC cars(such as the Losi mini LST) with two motors (linked by a gear) that have no issues with the design, and have proved its validity. As long as the two motors are linked, they will work in harmony without issue as long as they are generally close to the same rating.

  2. #42
    Machine Builder I build Tattoo Machines directDRIVE's Avatar
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    Quote Originally Posted by Sage Oz View Post
    There are many RC cars(such as the Losi mini LST) with two motors (linked by a gear) that have no issues with the design, and have proved its validity. As long as the two motors are linked, they will work in harmony without issue as long as they are generally close to the same rating.



    You are absolutely right, and I do hope that my theoretical mumblings were taken as nothing more than that, however...


    Quote Originally Posted by Sage Oz View Post
    There are many RC cars(such as the Losi mini LST) with two motors (linked by a gear) that have no issues

    you mention gears, I see no such gears.


    Quote Originally Posted by Sage Oz View Post
    As long as the two motors are linked, they will work in harmony without issue as long as they are generally close to the same rating.

    when used to drive two, seprate independent axles of a truck, absolutely! Or, when using a single, syncronised dual output brushless ESC, then yes indeed.


    Either way, my comments are purely theoretical here say, and are to serve no other purpose than to generate discussion
    Last edited by directDRIVE; 03-25-2013 at 07:55 AM.

  3. #43
    Knows Whats Up! OwlsDen's Avatar
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    Here is a twin engine geared system from and RC car.

  4. #44
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    Interesting ... How fast does this thing spin?... With the gears?

  5. #45
    Knows Whats Up! OwlsDen's Avatar
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    Quote Originally Posted by Tengu315 View Post
    Interesting ... How fast does this thing spin?... With the gears?
    Looks like 4-1 ratio. So if the outside are spinning at 20,000rpm the big gear would spin at 5,000rpm. However the torque would be multiplied by 4. Remember torque is the actual power. This would have some serious oomph.

  6. #46
    Machine Builder I build Tattoo Machines directDRIVE's Avatar
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    Quote Originally Posted by OwlsDen View Post
    Looks like 4-1 ratio. So if the outside are spinning at 20,000rpm the big gear would spin at 5,000rpm. However the torque would be multiplied by 4. Remember torque is the actual power. This would have some serious oomph.

    There we have it! I see gears

    Twin motors, coupled to a single fixed drive shaft - my sentiment entirely (no opportunity for them to run out of sync)


    It looks to be a 3:1 (20 tooth to 60 tooth - but who's counting ) and the torque would indeed be tremendous!

  7. #47
    Machine Builder I build Tattoo Machines directDRIVE's Avatar
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    Orientation also looks, erm, familiar to something sat on my workbench!!

  8. #48
    Senior Member Cabal Tattoo's Avatar
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    Surely powerful but bulky...


    Sent from my iPad using Tapatalk
    Work hard, play hard...

  9. #49
    Senior Member inkinwi's Avatar
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    Point of rotaries is to make a simpler more efficient machine. Only way this design has any validity would be to have some gearing system that utilizes both motors and steps the power into on drive system, which to me seems foolish. Why all the extra parts and 2 motors to achieve what you could with a single motor of a different rsting. I have no interest in this

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