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Re: Junkyard Challenge B
Posted: March 21st, 2011, 8:00 pm
by skillfullparrot7
VERY IMPORTANT FOR CHALLENGE B.2.: You can't pull back the arm of your catapult with your hand. You must indirectly release the catapult.
Didn't know if you guys knew this already.
I also have a new length for my catapult: 1.58 meters, golf ball, pulled back by hand. When I conduct a full test of it, I will use a trigger.
Re: Junkyard Challenge B
Posted: March 22nd, 2011, 8:53 pm
by skillfullparrot7
Full Test: 1.03 Meters, 6 golf balls hitting the plate, with trigger
This trigger DEFINITELY makes it harder to shoot as far as pulling back with the hand.
Re: Junkyard Challenge B
Posted: March 23rd, 2011, 3:58 am
by Littleboy
How did you make the trigger?
Re: Junkyard Challenge B
Posted: March 23rd, 2011, 2:45 pm
by fishman100
We have a distance of ~4 meters, and we're pretty accurate too
Does anyone have a good design for Bouncer?
Re: Junkyard Challenge B
Posted: March 23rd, 2011, 7:52 pm
by skillfullparrot7
fishman100 wrote:We have a distance of ~4 meters, and we're pretty accurate too
Does anyone have a good design for Bouncer?
Which ball are you using to get 4 meters? Also, did you use a trigger?
My best is just 136 cm with the golf ball, all 8 hitting the target plate.
Re: Junkyard Challenge B
Posted: March 25th, 2011, 1:29 pm
by samandjason
i got 7 meters for the ramp and 8 an another idea and still could have gone longer on both and also 7m for the catapult but i can only get around 10 cm for the bouncer any good idea's help please
Re: Junkyard Challenge B
Posted: March 25th, 2011, 4:55 pm
by fishman100
skillfullparrot7 wrote:fishman100 wrote:We have a distance of ~4 meters, and we're pretty accurate too
Does anyone have a good design for Bouncer?
Which ball are you using to get 4 meters? Also, did you use a trigger?
My best is just 136 cm with the golf ball, all 8 hitting the target plate.
Plastic golf ball and we are using a trigger (but that's our secret!) for Catapult.
And everyone seems to be fretting over a good Bouncer design; you don't really have to worry. If you find it hard, the other teams probably will too
so it'll be hard for everyone.
Re: Junkyard Challenge B
Posted: March 25th, 2011, 4:58 pm
by Littleboy
No our bouncer and ramp are great!
But may I ask why almost everyone uses a golfball? why not tennis ball?
Re: Junkyard Challenge B
Posted: March 25th, 2011, 5:01 pm
by fishman100
Really? what was your design for bouncer?
And about ramp...if the Event Supervisor chooses that then we WIN. No doubt. Automatic 1st place.
Re: Junkyard Challenge B
Posted: March 26th, 2011, 6:43 am
by rkoopma2
my regional was only last saturday, so we have just started working on the state challenges. we have lots of ideas for catapult and ramp, but none for bouncer. so far we have been only able to build one that bounces balls about 6 inches. any ideas?