Page 1 of 1

Grabbot

Posted: 08 Feb 2012, 06:08
by romakos
Hello. I need some help. I have problems with grabbot. Robot who will take and lift ball or basket(of lego-blocks). Can u sent me some images or give me interesting idea. For example: http://www.laurensvalk.com/includes/nxt ... /main1.jpg. But it is too difficult to build. Help me :)

Re: Grabbot

Posted: 08 Feb 2012, 08:24
by romakos
May be u have a building instruction of this NXT Robot. If u have pls give me url :)

Re: Grabbot

Posted: 08 Feb 2012, 10:36
by h-g-t

Re: Grabbot

Posted: 08 Feb 2012, 11:27
by pepijndevos
Depending on what you want, this one might work: http://studl.es/2012/01/pincer-bot/

Re: Grabbot

Posted: 08 Feb 2012, 13:49
by mcsummation
Actually, the one he posted the photo of is the 2.0 version - http://www.laurensvalk.com/nxt-2_0-only/the-snatcher, which is in the book http://www.amazon.com/LEGO-MINDSTORMS-N ... 866&sr=8-1

It is quite complicated, although easy enough to build with his instructions.

Re: Grabbot

Posted: 08 Feb 2012, 14:37
by mightor
The snatcher is a fantastic robot. I used it as a base for my Pneumo-Snatcher :)




- Xander

Re: Grabbot

Posted: 08 Feb 2012, 14:57
by pepijndevos
Interesting, how do you switch the pumps?

Is the secret inside the black box?

I have tried to make some sort of binary switch, to control an unlimited number of switches with one motor. But I have not succeeded at that so far.

Re: Grabbot

Posted: 08 Feb 2012, 18:40
by mattallen37
You mean switch the valves? He used the Servo Operated Pneumatic Valve Kit from mindsensors.

Re: Grabbot

Posted: 08 Feb 2012, 19:10
by mightor
mattallen37 wrote:You mean switch the valves? He used the Servo Operated Pneumatic Valve Kit from mindsensors.
He sure did! The accompanying article is here: [LINK]

Re: Grabbot

Posted: 09 Feb 2012, 10:16
by pepijndevos
Ohnoes! The valves are out of stock :( I wonder if you can connect a regulator to the servo controller. Insane amounts of brushless power!