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Mounting rubber wheel on motors

  1. Dec 7, 2011 #1
    I am trying to mount rubber wheels on a motor to make a paper airplane launcher
    similar to this: http://www.instructables.com/id/Super-fast-paper-plane-launcher/

    only, instead of wheels, I'm using rubber stoppers (for flasks)

    I've got two questions, 1) how do I attach them to the motor; I'm thinking epoxy, but I'm concerned that it'll drip and lock up the motor
    2) should i place the stoppers fat-side-up, and have a fixed space between the two, or should I place them fat-side-down and have a 'valley' for the plane to be propelled through?

    any input would be appreciated!

    detail pictures:

    http://img690.imageshack.us/img690/6825/imag0530i.jpg [Broken]
    http://img847.imageshack.us/img847/4063/imag0529b.jpg [Broken]
    Last edited by a moderator: May 5, 2017
  2. jcsd
  3. Dec 12, 2011 #2
    Epoxy is a good choice, as for keeping it out if the motors, turn the thing upside down so the motors are above the stoppers, gravity should keep the majority of the epoxy out of the motors. It seems like you would want the widest part at the top, so you can use a wider variety of planes, that may not reach to the bottom of the "valley"
  4. Dec 12, 2011 #3
    Get it centered. You wont be pushing many airplanes if you've got a cam rather than a wheel.
  5. Dec 12, 2011 #4
    thanks, that's what I ended up deciding to do, pretty much for the same reasons you listed! I've been too busy to get around to actually doing it, but I'll let you know how it goes!

    how do you suggest I do that?
  6. Dec 12, 2011 #5
    That depends on what you've got to work with. It doesn't have to be exact, but you should make an effort to get it as centered as possible.
  7. Dec 12, 2011 #6
    You might try using a dowel that's a close (but not tight) fit to the rubber stopper's hole. With a dowel a few inches longer than the rubber stopper, you can use that to align the parts and hold them in place until the glue cures.
  8. Dec 13, 2011 #7
    updated picture
    http://img69.imageshack.us/img69/6403/imag0559c.jpg [Broken]

    unfortunately, when i test it, I can't get much speed, so I think i'm going to have to look into better motors.
    Last edited by a moderator: May 5, 2017
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