Subject:
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RE: bushing (bush) question
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Newsgroups:
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lugnet.robotics, lugnet.technic
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Date:
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Fri, 24 Aug 2001 04:13:16 GMT
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Reply-To:
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<(bram@po)Spamcake(.cwru.edu)>
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Viewed:
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936 times
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Thomas (T. J.) Avery writes:
> In lugnet.robotics, Elijah Meeker <emeeker@austin.rr.com> writes:
> > http://img.lugnet.com/ld/4265c.gif
> > type 1
> > http://img.lugnet.com/ld/4265a.gif
> > type 2
> > http://img.lugnet.com/ld/4265b.gif
>
> They're pretty much the same. But I think Type 1 bushings often have a
> tighter fit than Type 2 bushings. It really depends on each specific part
> and its particular tolerances. I have some Type 1's that are extrememly
> tight fitting, and others that fit loosely.
Type 2 is newer, probably because the Type 1's were too hard to take off the
axle. I've noticed that most of my loose Type 1's have a hairline fracture
on one side.
> Also, the teeth are not often used for anything (e.g. used to
> lock an axle).
> When I use 1/2 bushings, usually I just need a bushing 1/2 thick. I
> rarely need to lock an axle from rotating. Besides, the new 1x2
> technic bricks with axle-holes do a much better job of locking an
> axle.
All the parts with teeth were essentially replaced with functional
equivalents. The locking connectors were replaced by the #1-6 angle
connectors. (But it's still easier to make a #4 out of two locking
connectors than to actually find a #4...)
The nice thing about the teeth was that you could lock the axle at "any"
axle you wanted. The one toothed set of parts that doesn't seem to have a
functional equivalent is the 1x plates with the holes on the end (usually
used as steering parts). But then again, one rarely used the teeth on that
part. I like having a mix of new and old to work from :)
I'll stop rambling now...
--Bram
Bram Lambrecht
bram@cwru.edu
http://bldesign.org/
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Message has 1 Reply:
 | | Re: bushing (bush) question
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| In lugnet.robotics, Bram Lambrecht writes: [...] (...) I think this is correct. I once built the "Aliens" type walker, (URL) . I used Type 2 originally and found that after the thing would walk a few meters one of the legs would pop off. Didn't have (...) (23 years ago, 24-Aug-01, to lugnet.robotics, lugnet.technic)
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Message is in Reply To:
| | Re: bushing (bush) question
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| (...) They're pretty much the same. But I think Type 1 bushings often have a tighter fit than Type 2 bushings. It really depends on each specific part and its particular tolerances. I have some Type 1's that are extrememly tight fitting, and others (...) (23 years ago, 23-Aug-01, to lugnet.robotics, lugnet.technic)
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