Growth Madrigal

Last year, an automotive OEM approached us with a recurring issue. The material was validated. The tooling steel was premium. The machine was calibrated. Yet parts kept failing dimensional checks. The root cause was not material. It was the gate location. The mistake most OEMs make When sourcing injection-moulded parts, teams focus on: Material grade. Wall thickness. Cycle time. Tool cost. Very few challenge gate placement. But gate location controls how molten plastic enters the cavity. That...

Procurement teams see it all the time. The drawing says ±0.05 mm.The inspection report says “within tolerance.”The assembly line says “doesn’t fit.” So who is wrong? In many cases, no one. And that’s exactly the problem. When “In Spec” Still Fails Injection moulding tolerances are typically verified part by part. But assemblies do not behave part by part. They behave cumulatively. This is where the tolerance stack-up in injection moulding  becomes a real production issue. A housing may be...

If an injection-moulded enclosure fails in the field, it almost always fails at the same place. The screw boss. The part looks fine out of the mould. Assembly goes smoothly. Cracks show up weeks or months later, usually during installation, servicing, or thermal cycling. This is not a coincidence. It is how stress accumulates in plastic parts. The screw boss is where stresses converge A screw boss concentrates multiple stress vectors into one small volume of plastic. You have thicker sections...