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Subject: 
Re: challenge: LEGO copier
Newsgroups: 
lugnet.robotics
Date: 
Fri, 6 Aug 2004 04:16:11 GMT
Viewed: 
3621 times
  
Joe Strout wrote:

> That's a good point, and the force needed to snap together the bricks is
> my greatest concern too.  Of course your gripper doesn't need to be made
> of bricks; it would probably be made of Technic struts and pins, which
> are considerably stronger (at least, in the directions that matter).
> But there will certainly be gears involved, and if you try to apply too
> much force, I imagine gear slippage will be an issue.
> 
> I wonder if this could be alleviated somewhat by using well-worn bricks;
> I've noticed that old, well-used bricks are easier to attach than new
> ones.  One might even experiment with a little bit of oil on the pins,
> though that could quickly get very messy.

Actually, I think it would be a good idea to use pneumatics to push the
bricks together.  Any resistance met by pneumatics simply increases the
air pressure required to keep pushing, rather than actually damaging any
pieces.

> I hope you're wrong, and somebody shows such a machine in the next few
> years.  Otherwise, I'm probably going to end up trying it myself, once
> my sons are old enough to get into Mindstorms!

Why do you have to wait until then?

>> Mark



Message is in Reply To:
  Re: challenge: LEGO copier
 
(...) One could cheat (if you consider it that) on this pretty easily, though. Instead of hoppers containing a jumble of bricks, each feedstock source could be a neat queue of bricks in a constant orientation. Grabbing the next brick from such a (...) (22 years ago, 6-Aug-04, to lugnet.robotics)

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