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Subject: 
Re: Pre-1995 strong pieces/attachments
Newsgroups: 
lugnet.technic
Date: 
Thu, 15 Mar 2001 02:20:06 GMT
Viewed: 
914 times
  
In lugnet.technic, Sean Harrington writes:
In lugnet.technic, Gaurav Thakur writes:
This could just be something to do with the sets I have, but I noticed that
many sets before 1995 seem to have really stiff and strong pieces. They take
a lot more strength to join but once connected, they stay on very tightly.
Some models I got in the last year (i.e. 8856, 8858, 8880) seemed to have
these really tight pieces, but newer ones (such as 8485 and 8462) have
pieces that fit more loosely. These were all new/MISB so I think that the
pieces should be of "correct" strength. Does anyone know anything more about
this?

-Gaurav

It might be a couple of things:

- A newer, slightly more pliable breed of ABS is being used. It is more readily
available, holds it's color better, is available in more colors (rather than
having to add a lake [dye] to the ABS beads), and weighs slightly less than the
older ABS. It's molding temperatures and pressures are slightly less as well.

- Some of the molds have been retooled slightly. This is because some of the
parts that required compound molds can now be achieved in simpler molds, due to
the newer ABS. With these new molds, edge fillets can more accurately be used
without as much flash oozing out. As a result, many of the pieces seem to
connect more readily, if not a bit more "sloppily". Compare a new half beam's
cross axle connection to an old one. The old one will have very sharp edges on
both sides. The new one will have one slightly sharp edge side and one slightly
rounded side.


- Sean

Thanks for the information everyone. I just brought this back up since I
recently acquired a rather old model (sealed/MISB 8865 Auto Chassis) and
noticed that some of the pieces were extremely tough to put together,
particulary the half-bushing/axle and the beam/friction peg connections.
These things, especially the bushings, took a good bit of strength to drop
into the appropriate position. On closer examination and comparison of these
and the newer elements it seems that the newer friction pins have two narrow
opening down the middle of the part, while the older ones do not. The
half-bushings seem to have a full cross-axle insert and therefore fit more
snugly around the axles than do the ones after 1994 (which had a larger
opening), although the ones that came with 8880 Super Car in 1994 (which had
the smaller holes) were not neraly as stiff and tight as the 8865 ones. I
guess this has both advantages and disadvantages; the pieces are much
tougher to snap into place, but they also stay on much more tightly...

-Gaurav Thakur, raving madman
Can be reached at cp5670@supermail.com



Message has 2 Replies:
  Re: Pre-1995 strong pieces/attachments
 
(...) what I've noticed is the black friction pins - many models I've bought already built I've found it extremely hard to remove these, requiring me to push with an axle very hard. A couple I haven't been able to remove at all - I had to drill them (...) (23 years ago, 15-Mar-01, to lugnet.technic)
  Re: Pre-1995 strong pieces/attachments
 
(...) I've been having problems with eight tooth gears and short (<6) axles. it seems that in certain combinations, an 8-tooth with slide all along a six- or four-long axle, IOW, no gripping. and then there are those that i can't put on an axle w/o (...) (23 years ago, 16-Mar-01, to lugnet.technic)

Message is in Reply To:
  Re: Pre-1995 strong pieces/attachments
 
(...) It might be a couple of things: - A newer, slightly more pliable breed of ABS is being used. It is more readily available, holds it's color better, is available in more colors (rather than having to add a lake [dye] to the ABS beads), and (...) (23 years ago, 13-Jan-01, to lugnet.technic)

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