Representative CNC machining of a dark acetate eyewear frame

Acetate frame manufacturing

CNC precision. Sabae finishing.

EIDAI combines controlled machining with the detailed hinge, polishing, fitting and inspection work required for finished acetate frames.

Machining defines the geometry. Finishing determines how the frame feels in the hand and on the face.

Precision machining is only the beginning.

Acetate manufacturing depends on the relationship between controlled geometry and skilled finishing. EIDAI connects CNC machining with hinge work, core wires, polishing, assembly and inspection.

Machine the form

CNC processes shape the front and temples from acetate material with controlled geometry.

Material preparation / Front machining / Temple machining

Build the structure

Hinges, core wires and related parts are processed and fitted into the frame.

Hinge work and insertion / Core-wire processing / Component fitting

Finish the frame

Polishing, assembly, adjustment and inspection complete the product.

Polishing / Assembly / Adjustment / Quality inspection

A connected acetate production sequence.

Machining establishes the frame. The following operations turn that geometry into a wearable finished product.

Representative manufacturing work related to this EIDAI production sequence
Development and production, connected as one manufacturing route.
  1. 01 Material

    Material preparation

    Confirm the acetate direction and prepare material for the approved frame construction.

  2. 02 Geometry

    CNC machining

    Machine the front and temples to create the required geometry and component interfaces.

  3. 03 Mechanical structure

    Hinge processing and insertion

    Prepare and install hinges in relation to the frame structure and movement.

  4. 04 Components

    Core-wire and component work

    Process and fit the structural parts required by the temple design.

  5. 05 Finish

    Polishing and fitting

    Develop the surface, edges, contact points and relationship between frame parts.

  6. 06 Finished product

    Assembly and inspection

    Assemble, adjust and inspect the complete frame before project completion.

From acetate material to finished frame.

Each operation changes either the geometry, structure, surface or final fit of the product.

01 Form and machining data

CNC geometry

Fronts and temples are machined from acetate material according to the approved frame design.

02 Movement and alignment

Hinge work

Hinge processing and insertion establish the mechanical relationship between the front and temples.

03 Internal structure

Core-wire processing

Temple structure is prepared through core-wire and related component work.

04 Tactile product quality

Polishing and fitting

Surface, edges, component fit and final adjustment are developed through finishing work.

Representative detail of the relevant EIDAI manufacturing process
Representative EIDAI eyewear manufacturing detail

Three layers define the finished acetate frame.

The frame must work as geometry, as a mechanical structure and as a finished object worn on the face.

Machined form

Front and temple geometry establish proportion, edge conditions and the base relationship between parts.

Mechanical relationship

Hinges, core wires and component fitting affect movement, alignment and assembly.

Surface and final fit

Polishing, fitting, adjustment and inspection determine the final feel and presentation.

Useful information for an acetate inquiry.

Material and color are important, but the design also needs to communicate construction, component and finishing expectations.

Design files
Front, temple and component information in drawing, CAD or sample form.
Material and color
Preferred acetate direction, color concept and finish expectations.
Construction details
Hinge, core-wire, component and assembly requirements that are already defined.

Discuss your acetate frame with a Sabae manufacturer.

Share the design, material direction and construction requirements for an initial production review.

Start a project