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Subject: 
PnP, an NXT-based "industrial" robot
Newsgroups: 
lugnet.org.ca.rtltoronto, lugnet.robotics, lugnet.technic
Followup-To: 
lugnet.robotics
Date: 
Sun, 31 Aug 2008 04:06:06 GMT
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OK, I had to post this in rtl because I confess the main inspiration for this
was watching Ian's amazing LEGO industrial P&P automations over the years. This
isn't nearly as fast as his, but it's the first time I've captured a motion I
really like, and I'm happy with the extensibility of it:

http://www.youtube.com/watch?v=-ZolqjEnhB4

OK, it could use a better name, but still. The other inspiration for this was a
contest I was in a while ago, to replicate a cube of 2x4 bricks. A lot of the
folks involved seemed to think that the lack of easy linear mechanism in the NXT
set was a significant problem. I didn't see it quite that way, at least not when
I had all these motor encoders "free" with the NXT, and decided to base mine
entirely on non-linear motion. I didn't quite finish it (gearing to push the
2x4's firmly together was a stumbling point), but really liked the manipulative
mechanism, so I improved it and started testing it. Since one of these "arms"
only needs two NXT motors, two NXT sets could drive three of these setups,
leading to a fun looking assembly line.

I'll toss some pics up on Brickshelf if anyone is interested, but really, this
is awfully simple - most folks here could replicate it from the video alone.
It's just fun to watch it work with that precision for a long period of time.

--
Brian Davis



Message has 2 Replies:
  Re: PnP, an NXT-based "industrial" robot
 
Nice work again Brian, It is a nice action, is it accelerating? or fixed speed?, reminds me of a bird.. perhaps Peck'n'Place... :) I noticed you have a calibration with a limit switch under the 'place' rack, are your Pick racks also calibrated or (...) (16 years ago, 31-Aug-08, to lugnet.robotics)
  Re: PnP, an NXT-based "industrial" robot
 
Brian, This is a nice robot. Ive not been on RTL for a bit (computer angst) but this was a nice video and robot to watch. Keep up the good work Regards Chris (...) (16 years ago, 17-Sep-08, to lugnet.robotics)

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