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Tumbler Buggy

December 23rd, 2008 Leave a comment Go to comments

Tumbler Buggy

Small, fully suspended buggy. Very good power-to-weight ratio.


Completion date: 09/05/2007
Power: electric (wire-controlled)
Dimensions: unknown
Weight: 0.65 kg
Suspension: dragged axles on shock absorbers
Motors: 1 x RC, 1 x 2838

Briefly inspired by the vehicle from Batman Begins the movie, called Tumbler. The only real reference is the rear axle actually, with two wheels on each side.

The drivetrain, consisting of a single RC motor, few bevel gears and a chain, turned out to be surprisingly effective. It’s been most likely thanks to the lightweight body,  low center of gravity and the advantage of bevel gears and chain over the traditional gears, as they generate much smaller backlash and thus much less energy is lost. The buggy is very manouverable too, with a very good steering lock and a well-calibrated speed of steering. I have been testing a version with kinda ‘off-road’ wheels, but the wheels with the flat tires offered a considerably better performance on the floor. Simple as it was, this car turned out to  provide lots of fun while driving around.


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  1. bachaddict
    September 27th, 2010 at 05:26 | #1

    the bottom view should be sufficient to work out your own version. 🙂

  2. Sariel
    April 11th, 2010 at 23:08 | #2

    Sorry then. You have Google and Wikipedia – help yourself.

  3. tristan
    April 11th, 2010 at 23:07 | #3

    i dont understand the most of the things

  4. Sariel
    April 11th, 2010 at 23:04 | #4

    I gave you the motor’s name and displayed it on the photos, what more do you expect?

  5. tristan
    April 11th, 2010 at 23:03 | #5

    i dont know what is this RC motor .

  6. Sariel
    April 11th, 2010 at 23:01 | #6

    Isn’t most of it explained in the text above or shown on the photos? The motors types clearly are.

  7. tristan
    April 11th, 2010 at 22:59 | #7

    what are the motors you used ?

  8. tristan
    April 11th, 2010 at 22:51 | #8

    can you explain those things (HOWITWORKS) : the remote the steering the suspensions . what for motors did you used ? how the rear wheels are they powered ?

  9. Sariel
    April 10th, 2010 at 21:38 | #9

    Sorry, I can’t.

  10. tristan
    April 10th, 2010 at 20:51 | #10

    without the bodywork just the interior

  11. tristan
    April 10th, 2010 at 20:47 | #11

    can you send me instructions of the tumbler ?

    because i wanna take the design to build a car for the outdoors

  12. NxT bUiLdEr
    February 20th, 2010 at 22:43 | #12

    that deems geared down really low

  13. Sariel
    August 13th, 2009 at 13:10 | #13

    @Jeffrey D
    There is a whole post on compressors in the Ideas category.

  14. Jeffrey D
    August 13th, 2009 at 11:14 | #14

    So I need to build a serious beast of an air compressor, like 6 cylinder +. I have been using Pf XL motors geared up to drive it and I’m not getting the airflow I want. Do you have any experience using the 5292 buggy motors with compressors?

  15. July 1st, 2009 at 22:43 | #15

    You’ve come a long way since then!

  16. Sariel
    July 1st, 2009 at 21:48 | #16

    It’s not independent. I think back when this buggy was built I did not even have the parts needed for a steered independent suspension.

  17. July 1st, 2009 at 21:39 | #17

    Is the front suspension independent (like the Tumbler), or does the front swing arm go all the way across? It looks like it is solid.

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