Gun Drilling Hot Runner Manifolds: Intersecting Holes Done Right
Hot runner manifolds are one of those jobs where the drilling itself is not the hard part. The hard part is making sure the holes meet where they are supposed to meet, and that the intersections are clean enough for plastic to flow through without hanging up. I have done my share of manifold drilling. If you are new to mold drilling in general, the injection mold components article covers the basics. This one is specifically about manifold channels and the techniques I use for deep hole drilling of hot runner manifolds. ...