Archive for October, 2006

Oct 03 2006

Got Good Parts? Part II

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Why is it identical parts can be good today, and rejected tomorrow?  Why does the inspector have a bad hair day and nothing you ship is accepted?  Why are you racking your brains trying to anticipate and outthink the buyer or your customer’s inspector?  Here are some tips. Continue Reading »

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Oct 03 2006

Lot to Lot Variation

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Everyone with the exception of a precision molder, will scream to the heavens that the differences from one production lot of material to another are so minimal they don’t affect processing.  Here’s how to prove them right or wrong. Continue Reading »

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Oct 03 2006

How Many Cavities?

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Estimating part and mold costs is part accounting, part engineering, part science, knowing the market and a huge sprinkling of luck.  However there are also many other considerations.  f you forget about them, you might as well look at the print through squinty eyes at the height of the full moon and pick the first number that comes at you and if you get the job, deal with the consequences later.  If not, here are some pointers.
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