Subject:
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Re: Gripper and lift arm with single motor
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 9 Aug 1999 20:58:14 GMT
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Viewed:
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757 times
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In lugnet.robotics, David Walton writes:
> Anybody give me any pointers to designs on the web which actually work - I
> know Ben Willamson had a design but that doesn't give enough movement of
> the gripper jaws for my project
Lego has included several such designs in their sets. Unfortunately none of
the instruction scans are available on the Internet, mostly because these sets
are quite recent.
Among these sets, 8250 search sub is now on sale at $25 on Lego S@H. The
design is pneumatic, but can be modified to be directly driven by the motor
through a worm gear. (A personal confession: The claw is described at the very
beginning of the 8250 instructions. After I built the claw, I started to play
with it, modify it, etc. I ended up having never finished the whole model.)
Or you can take a look at the picture of the Recycler on the back of your
Mindstorms box (also at <http://nettvik.no/naeringsparken/lego/28.jpg> from a
different angle). It is basically the same design as 8250's.
Cheers,
Hao-yang Wang
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Message has 1 Reply:
 | | Re: Gripper and lift arm with single motor
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| Many thanks for posting the info for 8250 being on sale at shop at home. I have had my Mindstorms for only a few weeks, and I am getting back into playing with Legos after a very long time away. I ordered my Search Sub yesterday and am anxiously (...) (25 years ago, 11-Aug-99, to lugnet.robotics)
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Message is in Reply To:
| | Gripper and lift arm with single motor
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| I hope someone can help me with this I tried most of the weekend to try and build a mechanism to grab an item (49.6x28 VR wheel) and lift it using one new type motor (the ones in the RIS). All my attempts seem to either self destruct or just didn't (...) (25 years ago, 9-Aug-99, to lugnet.robotics)
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