Why do you mill your trays instead of injection molding them?
We have heard lots of complaints about injection molded trays. Matter-of-fact, we sell lots of trays to unhappy customers, because of this. Tubes falling out, dribbles down the side of the tubes and having to clean the tubes off after a pour.
There are a number of things that can go wrong with the injection process, the plastic formula maybe off, injection temperature can be wrong, the injection mold itself is old or maybe not made properly in the first place.
For something that needs to be “Precise, Every Time” milling is the only answer.
Yes, it may take more time and yes a little more material is cut out from the holes but in the long run it can save you money and hours of frustration. We also put a wide rim all the way around the tray, not only for pouring but to keep everything perfectly flat and accurate.
They will never wear out and will stay flat and accurate.