Author Topic: suction techniques required!  (Read 4750 times)

0 Members and 1 Guest are viewing this topic.

Offline bitsimoTopic starter

  • Beginner
  • *
  • Posts: 5
  • Helpful? 0
suction techniques required!
« on: January 01, 2007, 06:13:42 PM »

i was thinking of participating in a upcoming robotics comp called VOIDS, in this the basic task is to pick up and deposit as many plastic table tennis balls inside a container in under a min.

now i have seen in the same comp. last year everyone used a arm type pickup mechanism , i was thinking to use a suction mechanism to pick up or at least to get the balls in the right orientation , so as to pick it up easily , as most of the teams spend a lot of time in getting their grippers in the right place?

i tried making one with a cpu fan , but it was simply useless and could only pickup  small foam pieces,i think i would need a more heavy duty yet lite system, with a compressors and all, any suggestion for a cheap sys that i can hack or build!

by the way , wonderful job with this site, hope i had found it earlier!
keep it going!

thanks in advance!

Offline JonHylands

  • Expert Roboticist
  • Supreme Robot
  • *****
  • Posts: 562
  • Helpful? 3
  • Robot Builder/ Software Developer
    • Jon's Place
Re: suction techniques required!
« Reply #1 on: January 01, 2007, 07:32:22 PM »
A couple things you could try:

That would have a little more suction, although you might burn out the motor.

You could also, depending on how big the robot was, mount a cordless handvac.

- Jon

Offline polar bear6

  • Full Member
  • ***
  • Posts: 98
  • Helpful? 0
Re: suction techniques required!
« Reply #2 on: January 01, 2007, 08:32:14 PM »
you can check out what this guy here did.
it sounds like he did the same thing you want to do.
hope it helps!

Offline Admin

  • Administrator
  • Supreme Robot
  • *****
  • Posts: 11,703
  • Helpful? 173
    • Society of Robots
Re: suction techniques required!
« Reply #3 on: January 01, 2007, 10:23:36 PM »
considered doing a 8+ finger hand? all the fingers could be actuated by a single pull string, and so the hand grabs the tennis ball at all angles . . .

i couldnt find a pic of it online, but i remember seeing it somewhere . . .

as for vacuums . . . not sure if this is helpful, but might give you ideas:

Offline Cognaut

  • Full Member
  • ***
  • Posts: 58
  • Helpful? 0
  • How do you know that I'm not a robot?
Re: suction techniques required!
« Reply #4 on: January 01, 2007, 11:41:01 PM »
What about using a spinning brush or pair of brushes that propel the balls into a funnel shaped dust pan that guides them into a bucket?  It would take a lot less power than a vaccuum - just a small motor or two.

« Last Edit: January 02, 2007, 12:41:46 AM by Cognaut »


Get Your Ad Here