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Automatic Catapult for Throwing Pet Food, Balls, and More!

Project tutorial by Nathan King

  • 8,546 views
  • 10 comments
  • 50 respects


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Automatic Catapult for Throwing Pet Food, Balls, and More!

Project tutorial by Nathan King

  • 8,546 views
  • 10 comments
  • 50 respects

Secret Door Opener

Project tutorial by Alex Wulff

  • 3,088 views
  • 1 comment
  • 19 respects

LED Cube 7x7x7

Project tutorial by Marcazzan_M

  • 2,003 views
  • 2 comments
  • 22 respects

  • Automatic Catapult for Throwing Pet Food, Balls, and More! about 1 month ago

    Hello. The measurements of the structure aren't fixed. They're dependent on the lengths of the flinging arm (in my case the dog ball thrower) and the spring (thickness, length, strength).

  • Automatic Catapult for Throwing Pet Food, Balls, and More! about 1 month ago

    Hi Peter, thanks very much!
    Good question. She'll definitely try to get at ANY available food. I chose the pvc, partly, so she couldn't see any food - it was 'miraculously being thrown from this machine' (dog's thoughts).
    Additionally, I don't leave it sitting with food in it where she can get at it. She is only near it when it's operating and flinging food. Which generally keeps her excited and busy.
    Naturally, she's sniffed and licked it. But I never fill it up enough so that she can see the dog biscuits in the pipe. So she can sniff and lick all she likes, but no food.
    I also agree with you, she's a little afraid of the motor noise and movement. Luckily ;)

  • Bert, the Walking Monster Robot about 2 months ago

    Great job! Very quirky ;)

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