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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
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Message has 2 Replies: ![](/news/x.gif) | | Re: PnP, an NXT-based "industrial" robot
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| 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)
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7 Messages in This Thread: ![You are here](/news/here.gif) ![](/news/246.gif) ![Re: PnP, an NXT-based "industrial" robot -Mike Hatton (31-Aug-08 to lugnet.robotics)](/news/x.gif) ![](/news/246.gif) ![Re: PnP, an NXT-based "industrial" robot -Mike Hatton (31-Aug-08 to lugnet.robotics)](/news/x.gif)
![](/news/x.gif) ![](/news/28.gif) ![](/news/x.gif) ![](/news/68.gif) ![Re: PnP, an NXT-based "industrial" robot -Brian Davis (31-Aug-08 to lugnet.robotics)](/news/x.gif)
![](/news/x.gif) ![](/news/68.gif) ![Re: PnP, an NXT-based "industrial" robot -Chris Magno (17-Sep-08 to lugnet.robotics)](/news/x.gif) ![](/news/46.gif) ![Re: PnP, an NXT-based "industrial" robot -Brian Davis (17-Sep-08 to lugnet.robotics)](/news/x.gif) ![](/news/46.gif) ![Re: PnP, an NXT-based "industrial" robot -lego-robotics@crynwr.com (Johanâ¢Strandberg) (18-Sep-08 to lugnet.robotics)](/news/x.gif)
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