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In lugnet.lego.direct, Tom McDonald writes:
> Color still seems to be easier to change IMO rather than a mold, as I can
> imagine that process would occur faster, as the machine would not have to
> pause as long (if at all) in the changeover.
I disagree.
Consider the example of mold tooling that was built to the same form factor for
the same machine. To change from one to the other requires merely a
substitution of the tooling and a change in settings for amount of plastic to
inject, preheat, mold dwell time, cooling time, ejection rate, etc. All of
which, no doubt, are just parameters to the NC control program driving the
molding machine.
To change colors requires a lot more work as you have plastic that has to be
cleaned out of a lot of places.
IMHO.
++Lar
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Message has 1 Reply: ![](/news/x.gif) | | Re: Bulk Sales in the 21st Century
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| (...) factor for (...) to (...) That may be, but when I worked in the plastic part plant, and I changed material and colors numerous times when I was a Utility, a color change merely required a dumping of the material from the hopper, blowing it out (...) (24 years ago, 10-Jul-00, to lugnet.lego.direct, lugnet.general)
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Message is in Reply To:
![](/news/x.gif) | | Re: Bulk Sales in the 21st Century
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| (...) This sounds like one of the few things that could stop the flow of ABS, though I doubt it's cleaned inside very often. (...) I totally agree. The unknown here seems to be how many pieces must go through a mold before the new color completely (...) (24 years ago, 9-Jul-00, to lugnet.lego.direct, lugnet.general)
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46 Messages in This Thread: ![Bulk Prices! -Richard Marchetti (29-Jun-00 to lugnet.lego.direct)](/news/x.gif) ![](/news/246.gif) ![Re: Bulk Prices! -Gary Istok (29-Jun-00 to lugnet.lego.direct)](/news/x.gif)
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