Subject:
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Re: 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 18:52:53 GMT
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Viewed:
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404 times
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In lugnet.technic, Simeon H.K. Fitch writes:
> After 20 years away from Legos,
Welcome back!
> 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
Nice work, I do like it. Set 8002 is one of my favorites (I have 5 :-)
> 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...
This is tough. There aren't many sets available with a good selection of
"essential" Technic parts.
The Mindstorms set (the one w/ the programmable brick) contains more than
700 parts. Although expensive, it has a good selection of essential parts.
Lego shop at home has a few sets:
http://shop.lego.com
Look in the advanced Technic section for some big sets (like the 8448
supercar). These will contain the essentials (gears, beams, etc.) but still
have a lot of specialized parts (i.e. junk).
Then there's Brickbay. You can buy exactly what you want, but it can be
expensive.
http://216.37.35.72
Hope that helps. If not, I'm sure someone will come along with a better post.
TJ
www.texbrick.com
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Message has 1 Reply:
 | | Re: Working four-finger gripper
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| (...) Here's another idea: The 8480 Technic Space Shuttle. This set is regarded by most Technic fans as the greatest Technic set ever. I don't own one, but I've seen a parts list: (URL) it contains an excellent selection of parts. Right now it's (...) (23 years ago, 20-Sep-01, to lugnet.technic)
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Message is in Reply To:
| | Working four-finger gripper
|
| 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 (...) (23 years ago, 20-Sep-01, to lugnet.technic)
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