Pressure sensors in the molds
Sensors inside the three worst molds read the plastic's pressure on every shot, so a bad shot is caught at the press.
| Cost | About $60,000 for three molds |
| Payback | About 24 months |
| Limitation | The dearest way, a purchase for each mold. It needs a sound mold, and at the scrap we count it is slow to pay back. |