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Subject: 
Re: My First Stacking Attempt
Newsgroups: 
lugnet.org.ca.rtltoronto
Date: 
Wed, 7 Feb 2001 05:08:07 GMT
Viewed: 
661 times
  
In lugnet.org.ca.rtltoronto, Rob Stehlik writes:
I just had some more thoughts on your mechanism... Using curved guides up front
should elimenate most of your block alignment problems. Use a couple of those
big sloped znap pieces like Chris did. This way, you would only have to drive

That was the plan, but it's a little more insidious than that. :(  It's not
just the floor plane, it's the alignment in the other plane-ie, it's if a
block hops into the wheels (ie, being bumped by another block behind it, or
being bumped by an imperfection in the floor) at a weird angle in relation
to the floor.

However, the guides you suggest I think will help a lot.

the grabber wheels when a block is on the way in. Then you could rig up a
direction splitter and use one direction of the motor to drive the wheels, and
the other direction to split open the mechanism. The flex axles should allow a

Actually, I was planning (but let me know if you think this is silly) to
leave them on all the time.  Continously, driven off a secondary battery box.

lot of flexibility (imagine that!) in the drive system. So putting all of this
together shouldn't be too hard. As far as the split goes, you are on the right
track with the slanted pieces. I did something similar on my robot. I can send
you a quick Ldraw file if you like...

Could you?  I now have a frame that splits nicely with a little bit of
elasticity, and is reasonably strong with hardpoints that could be connected
to a chassis. If you spread the sides, then let go, the frame returns back
to normal due to a rubber band.

I'm going to try and power said plunger/slants with a wormdriven linear
translation (ie, Leo Dorst mechanism) and a micromotor...and I have an idea
(I'm thinking of using those three by three flat "wings") as how to build
it, but I'd like to see what you'd recommend.

thanks!
Calum



Message has 1 Reply:
  Re: My First Stacking Attempt
 
(...) Ummm.... I probably wouldn't do it, but I haven't seen how well the spinning tires work. I am also partial to minimizing motors. But your plan is a lot simpler. (...) Sounds like you are well on the way! I will either bring a demo model of my (...) (24 years ago, 8-Feb-01, to lugnet.org.ca.rtltoronto)

Message is in Reply To:
  Re: My First Stacking Attempt
 
I just had some more thoughts on your mechanism... Using curved guides up front should elimenate most of your block alignment problems. Use a couple of those big sloped znap pieces like Chris did. This way, you would only have to drive the grabber (...) (24 years ago, 2-Feb-01, to lugnet.org.ca.rtltoronto)

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