NXT auto/semi-auto rubberband gun by firepup104
Contest Winner
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This is for 12 and under devision
So i have decided to make a very cool gun. This may or may not hurt depending. Please don't point at eyes or intentionally trying to hurt people.

 
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Step 1: What you need

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1 mindstorm engine and the controler item (Scene in the upper right of the picture)
2 gears
2 elbow pieces
2 L shape pecies
4 15 doted pieces
4 round connectors
4 round + cross pieces
2 round extra long pieces
1 long cross stick
 

eautoczesci says: Jan 30, 2013. 3:07 AM
Ohh, I will show it to my child!!!
shabaki says: Feb 21, 2011. 3:39 PM
now you just need to rig a targeting system :D

your using the mindstorms kit so perhaps some kind of scanner with the ultrasonic sensor, having it just revolve aimlessly until it senses something within a certain range
firepup104 (author) says: Feb 23, 2011. 5:48 PM
I know but I dont know how to program it like that
shabaki says: Feb 26, 2011. 8:13 AM
i havent used the pregraom in a long time but you essentialy have to have something that says motor a keeps turning , then if ultrasinc detects object motor a stops and fire projectile
firepup104 (author) says: Feb 27, 2011. 8:39 AM
I would need to be the other way around
hungyhipo 2 says: Feb 19, 2011. 6:12 PM
this is cool but it is a little simple
firepup104 (author) says: Feb 21, 2011. 10:46 AM
I know but it can win the simple bot division. I entered a walking bot too. I am also gonna enter an rc car whith a propain flamethrower
hungyhipo 2 says: Feb 21, 2011. 2:07 PM
ok i didnt know that it was going into the simple bot one. It might win in that
firepup104 (author) says: Feb 21, 2011. 3:22 PM
Well I dont know witch one just guessing
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