The Troubleshooter

摘要

I received a package from one of my old friends the other day.The package contained many small lenses,each one showing a different problem with cosmetic issues at the gate.The small cold runner that accompanied the parts was a classic example of what not to do when designing a gate to feed a part that requires high clarity and no blemishes.(This design flaw is one that I show on the Gate Dimensioning page in one of my seminar books;see p.76.)