Subject:
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need advice from lego gurus
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Newsgroups:
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lugnet.robotics
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Date:
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Sat, 9 Jul 2005 04:45:21 GMT
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Original-From:
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dan miller <danbmil99@yahoo.[StopSpam]com>
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Viewed:
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1430 times
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I'm thinking about the next version of my one-armed robot, Grabot.
Presently he looks like this:
http://www.danbmil.com/lego/DSCN6131.JPG
what I want to do is have the claw go up and down but stay parallel to the
floor, rather than hoist itself up as in this picture. Does anyone know of
a technique, used or just conceptual, for doing this? I'll need some sort
of elevator construction, that can hold quite a bit of weight for the arm
assembly. Here's a top-level view that shows how the arm looks now:
http://www.danbmil.com/lego/DSCN6128.JPG
Any thoughts will be greatly appreciated. I am thinking of some sort of
worm gear + one of those toothed strips, but I can't really see how to make
it work efficiently with a good range of motion.
thanks in advance, this is a great group
- dan
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Message has 3 Replies:
 | | Re: need advice from lego gurus
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| Dan, If you are okay with it being further forward when it is raised than when it is lowered, you can use a rather simple but robust method of raising your gripper while keeping it parallel to the ground/floor. I'm afraid I can't whip up a drawing, (...) (19 years ago, 9-Jul-05, to lugnet.robotics)
| | | Re: need advice from lego gurus
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| (...) There are probably several ways to solve this. One is using parallelogram as arms that lifts, and mounting the gripper in one end of the parallelogram and the robot in the other. I have no photos or drawing what I think of. But if you make an (...) (19 years ago, 10-Jul-05, to lugnet.robotics)
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