From Artisan Workshop to Automated Production Line:
The Faro F35 Lens and the Scalability Challenge in Eyewear Manufacturing

One machine. Multiple configurations. From single-piece prototyping to fully automated lens production — without changing the platform.

The Core Problem: Scalability Without Reinvestment

Eyewear manufacturers face a structural dilemma: the tooling and workflow required for small-batch artisan production differ substantially from those needed in high-volume automated lines. Traditionally, scaling up has meant investing in entirely separate equipment — and absorbing the associated cost, retraining, and integration overhead.

The Faro F35 Lens addresses this directly through modular hardware design. By changing only the tooling and fixturing — not the machine itself — operators can shift between milling fronts, cutting temples, and machining optical lenses on a single 5-axis platform with a 400 × 200 × 150 mm work envelope, a 60,000 RPM liquid-cooled electrospindle (1.8 kW), and a 6- or 12-position automatic tool changer.

Precision at the Core: What the Hardware Delivers

The F35 Lens runs on a natural granite frame — a structural choice that eliminates thermal expansion and vibration at the source, rather than compensating for them in software. Axis motion is managed via ISO-7 precision linear guides and preloaded ball screws, with 1 µm resolution on XY and 0.5 µm on Z.

Two Technologies, Two Different Problems

Surface intelligence on the F35 Lens comes from two distinct systems, each solving a different challenge.

The built-in automatic probing system identifies the exact position and surface geometry of each lens or mask before machining begins. It maps heights, references surfaces, and establishes precise toolpath anchors — without any manual adjustment, regardless of incoming material tolerances or part-to-part variation. This is the foundation of repeatable accuracy across a production batch.

For lenses carrying special surface treatments, a completely different challenge arises: how do you correctly orient a machining path on a lens that already has a gradient tint, a directional coating, or a pre-printed logo? Position alone is not enough — the machine needs to understand what is on the surface before it cuts.

This is what Faro Chromo Track is designed for. Rather than probing geometry, Chromo Track uses optical analysis to detect color gradients and identify the exact position of pre-printed logos on each lens. This data is fed directly to the CNC controller, which orients the toolpath accordingly — ensuring that gradients exit in the correct direction and that logos are perfectly centered on every single piece, at any volume.

The two systems are complementary: the probe establishes where the surface is; Chromo Track establishes what is on it.

The Robotic Island: Entering Automated Production

Where the F35 Lens transitions from a flexible machining center to a production-line asset is through its optional automatic loading system. A collaborative robot (cobot) handles the complete loading and unloading cycle for lenses and masks inside a fully enclosed safety enclosure, enabling continuous unattended operation.

In this configuration, Chromo Track becomes the critical upstream step: before each piece enters the machining cycle, the vision system reads the surface, computes the correct orientation, and passes precise alignment parameters to the controller — eliminating the manual centering step that is both time-intensive and a common source of scrap in high-mix lens production.

Software as the Unifying Layer

The F35 Lens runs on Faro’s proprietary CAD/CAM software, purpose-built for lens and eyewear production. The platform supports 2D programming with automatic 5-axis conversion, handles complex curved surfaces natively, and automates edge drilling and engraving workflows — reducing the programming time that often bottlenecks operations when moving to more complex geometries.

Importantly, the same software environment governs both the manual workshop configuration and the robotic island setup. Operators scaling from prototype work to full production face no additional learning curve on the automation side.

Who This Machine Is Built For

The F35 Lens is a relevant option for manufacturers currently running separate equipment for frame milling and lens cutting who are evaluating platform consolidation — as well as for operations planning to introduce automation incrementally rather than through a full-line capital investment.

It is equally applicable to producers of sports shields and performance masks, where gradient treatments and surface markings require precise alignment that manual fixturing cannot guarantee at scale.

Meet Faro at the next international event:
JGTD Dubai — 27–29 October 2026 · Dubai Exhibition Centre (DEC), Expo City · Faro will exhibit the F1 and F35 machines for the jewelry sector.

Related reading: Faro Chromo Track — vision system for gradient and logo alignment  ·  Faro F35 Lens product page  ·  Eyewear CNC machines overview