Subject:
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Re: On the Subject of Treads
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 30 Aug 1999 20:36:22 GMT
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Viewed:
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625 times
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In lugnet.robotics, lego-robotics@crynwr.com (John Barnes) writes:
[snip]
> Has any one used treads to make a simple crawler that really
> works properly?
>
> I have failed a number of times. What I observe is that the
> treads slowly precess relative to the cogging on the tread
> wheels. Then, the ribs on the inside surface of the tread
> "climb over" the ribs on the tread wheels. This causes a big
> increase in friction, and is not acceptable. I have tried to
> construct devices using treads as conveyors, with the same
> result. I have tried different tensioning schemes, but nothing
> seems to help.
I have indeed seen this before, on at least three different
LEGO Technic (including one RIS) kits. Its a flaw in the treads,
not anything that you are doing wrong. I called the LEGO Customer
Satisfaction line, complain, and they ship me out a new set. Let
me guess, your treads are kind of thick and rather stiff, won't
loosen up and eventually bind on the rollers? Am I psychic? Nope,
I've just seen it often.
Get a new set.
DLC
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Message is in Reply To:
 | | On the Subject of Treads
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| I note with interest, the discussion relating to using treads for building a climber. I have a preliminary question before going further with a technically challenging problem like this. Has any one used treads to make a simple crawler that really (...) (25 years ago, 30-Aug-99, to lugnet.robotics)
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