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In lugnet.general, Richard Marchetti writes:
> But yeah, the quality is definitely slipping -- and has been for some time.
> I have seen more edges with a bit of plastic still attached, stringy plastic
> on the tops of studs, incompletely formed tubes, even slightly mottled
> bricks -- let's not forget the more interesting first run of dark red elements.
Edges with "flash", thin brittle plastic, can be an indicator of an aging
mold (no longer closes as tightly) or just sloppy process control (machine
not adjusted for present conditions.)
Stringy plastic (like cotton candy) on the top of studs is harmless, it
indicates the part came from a "hot runner" mold where the cooled part is
still in contact with molten plastic at the injection point. This gives a
big boost to throughput and generally offers chances to improve quality.
Incomplete pieces - no excuse for that...
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Message is in Reply To:
 | | Re: Poor Part Quality- 2x5x6 Castle Walls
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| (...) What are waves and mold-slump? Are these caused by old molds or by pulling the elements out of the molds before they are fully hardened or whatever? But yeah, the quality is definitely slipping -- and has been for some time. I have seen more (...) (22 years ago, 5-Jun-02, to lugnet.general, lugnet.dear-lego)
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