Subject:
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Re: Black friction peg size
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Newsgroups:
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lugnet.robotics
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Date:
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Tue, 27 Feb 2001 08:23:29 GMT
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Original-From:
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Simon Bogaert <simon.bogaert@advalvas.beANTISPAM>
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Hello,
As to my knowledge, there are two sorts of black friction pegs. Sort 1 is
the oldest one. It has the usual form of a peg, but it has full-length
ribbons on it: from the middle to the end, there's a ridge to cause the
friction. These pegs stay in very well, to this extent that it's sometimes
impossible to remove them without tools. I believe that TLG stopped making
them in the early nineties, as they were too hard to handle; they can come
in handy in producing rigid constuctions.
Sort 2 is the newer one. They don't have full-length ribbons; only two
separate rigs that are spread over the length of the peg. This causes
friction, but not as much as with the older ones; it makes them harder to
pull loose then the grey pegs, but not that much harder.
Then there must be a sort three, the very old ones of (I think; not sure;
wild guess) in between the grey pegs. Yes indeed, before the black ones,
there were only grey pegs. Then they must have started producing slightly
larger black ones to get more friction, but they ran upon the removal
problem. Then they got the idea to equip them with rigs, which resulted in
sort 1 pegs. I think of this as probable since I have a (quite old)
cross-axle peg in black that is very hard to remove.
The triple length ones are only sort 2, because they appeared later, when
sort 2 was already common.
I hope this is what you were looking for...
Simon Bogaert
> While I was makeing a simply fixture to mount black
> friction pegs in a lathe, I discovered that they come in
> two different wall thicknesses! I had never seen a posting
> about this and I had never noticed it before, but it accounts
> for why some things seem to snap together better than
> others. Do these two types have the same part number?
> Were the thicker ones introduced later? Are there three stud
> long black ones with thin walls as well?
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Message is in Reply To:
 | | Black friction peg size
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| While I was makeing a simply fixture to mount black friction pegs in a lathe, I discovered that they come in two different wall thicknesses! I had never seen a posting about this and I had never noticed it before, but it accounts for why some things (...) (24 years ago, 26-Feb-01, to lugnet.robotics)
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