Society of Robots - Robot Forum

Mechanics and Construction => Mechanics and Construction => Topic started by: rajul_stealth on January 29, 2008, 05:47:08 AM

Title: want a throwing mechanism
Post by: rajul_stealth on January 29, 2008, 05:47:08 AM

frendz i want a throwing mechanism to throw a table tennis ball in the goal post
iam making a robot which will float on water and it has to collect balls above the water and put it in goal without going in the goal and there is one ball inside the water so how can i take that ball from the water plz suggest me some mechanism to throw tthe ball into the goal r any other mechanism plz help guyz

Title: Re: want a throwing mechanism
Post by: airman00 on January 29, 2008, 02:08:35 PM

Just use a motorized paddle and then that will catapult it into the goal

Title: Re: want a throwing mechanism
Post by: SmAsH on January 29, 2008, 02:47:00 PM

or you could make that hotwheels part that shoots cars waterproof and a bit wider. (more acurate)

Title: Re: want a throwing mechanism
Post by: airman00 on January 29, 2008, 05:47:01 PM

Quote from: SmAsH on January 29, 2008, 02:47:00 PM

or you could make that hotwheels part that shoots cars waterproof and a bit wider. (more acurate)

that is too difficult

Title: Re: want a throwing mechanism
Post by: SmAsH on January 29, 2008, 08:50:28 PM

sorry i didnt mean make...i moddified mine to shoot bouncy balls...only about 2meters tho  :'( lol but ping pong balls are lighter.

Title: Re: want a throwing mechanism
Post by: ed1380 on January 29, 2008, 08:54:17 PM

lighter isnt always better.

take a lightly crumpled up piece pf paper and throw it.

and the same piece densely packed. the small dense piece will fly farther, faster and more acurate


trust me. ;) i do it at school 

Title: Re: want a throwing mechanism
Post by: SmAsH on January 29, 2008, 10:32:15 PM

ya i know. i usally put a weight at the back of things i throw in class. anyway nuf talk of this. (off topic)

Title: Re: want a throwing mechanism
Post by: rajul_stealth on January 30, 2008, 03:05:38 AM

i didnt understand what type of mechanism r u telling plz  specify it clearly guys coz iam noob here

Title: Re: want a throwing mechanism
Post by: SmAsH on January 30, 2008, 03:13:58 PM

well two wheels spinning opposite ways something goes through middle touches both wheels and gets pushed through fasssst. the other is just paddles stuck into a cork or something and it spins and the paddle hits the balls (not very accurate tho) usially shoots it up or straight down.

Title: Re: want a throwing mechanism
Post by: airman00 on January 30, 2008, 06:34:24 PM

http://www.paddlewheeler.com/images/Wheel2.gif (http://www.paddlewheeler.com/images/Wheel2.gif)

Imagine that spinning and imagine a ping pong ball inside it -- the ping pong ball would fly!

Title: Re: want a throwing mechanism
Post by: cooldog on January 30, 2008, 06:42:53 PM

but not accuratly

Title: Re: want a throwing mechanism
Post by: airman00 on January 30, 2008, 06:43:43 PM

Quote from: cooldog on January 30, 2008, 06:42:53 PM

but not accuratly

well if the paddles were thinner , then it would be accurate

small enough compartments for the ping pong ball to slip in and not move around