Subject:
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Working four-finger gripper
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Newsgroups:
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lugnet.technic
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Date:
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Thu, 20 Sep 2001 18:24:44 GMT
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Viewed:
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557 times
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After 20 years away from Legos, I happen to be in Wal-Mart the other day and
saw the 8002 Destroyer Droid kit on clearance for $25. I knew this was a
good deal, and had been eyeing the mindstorms, so I decided to buy the kit
(even though I thought Episode 1 was terrible).
I was quite impressed with the mechanical complexity of 8002, and was
inspired to try something of my own. I decided to build a "gripper", like
the ones that are in those arcade machines for picking up stuffed animals,
etc. I had so much fun with it that I had to share the results:
http://www.brickshelf.com/cgi-bin/gallery.cgi?f=6961
There is an axle that runs up the center of the device, that when turned
causes a 4-way armature to turn, which applies outward force to each of the
four "fingers" of the claw. Likewise, turning the axle in the other
direction pulls the fingers inward (a rubber band helps keep the claws
closed when no torque is applied.
I've also uploaded the ML-CAD file I drew after building it.
I don't own any gears or motors yet, but I hope to get some soon to try to
motorize the thing.
Hope you like it.
Simeon
PS: Any advice on the best way to get a bunch of grears/mechanical type
parts? Most of the Lego kits in the store seem to be more "action figure"
oriented, which isn't what I'm interested in...
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Message has 1 Reply:
 | | Re: Working four-finger gripper
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| (...) Welcome back! (...) Nice work, I do like it. Set 8002 is one of my favorites (I have 5 :-) (...) This is tough. There aren't many sets available with a good selection of "essential" Technic parts. The Mindstorms set (the one w/ the (...) (23 years ago, 20-Sep-01, to lugnet.technic)
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