Injection mold machined and lapped to a mirror finish

Programming the mold in ENCY
Thanks to Lavorazioni Meccaniche CS for sharing this injection-mold job. All the mechanical operations — from roughing the core and cavity to interpolated pocketing and drilling — were programmed in ENCY CAM and cut on a 3-axis vertical machining center, with the geometric accuracy of every detail treated as the reference for the finishing stage that follows.

The real challenge: manual lapping
The hardest part of the job was not the milling but lapping the core and cavity. To deliver a fully transparent plastic part with an optical-quality finish, every mold surface has to be worked and inspected by hand. Progressive polishing carries the surface through successive grit stages until it reaches a mirror finish — the condition under which a molded component comes out bright, transparent and free of visible defects.

Why the mold defines the part
Behind an apparently simple component sits a process built on precision, experience and attention to detail: the quality of the finished plastic part is fixed by the quality of the mold that makes it. Accurate CAM programming provides the geometry; manual finishing turns that geometry into the surface the customer actually sees.