High-contrast reference markers for optical 3D scanners and precise object registration

These magnetic black and white dots, 3 mm in diameter, were specifically developed for measurement tasks with structured light scanners and all optical 3D measurement systems that rely on high-contrast markings. The two-color surface ensures reliable dot detection, enabling stable object registration, precise position detection, and unambiguous marker point identification during the scanning process.

The magnetic underside allows for secure, repeatable attachment to metallic surfaces. This makes the dots ideal for workpieces, machine components, prototypes, or assemblies where clear optical referencing is required – without adhesive residue and without time-consuming surface preparation.

Product features

3 mm diameter

Optimized for fine structures, smaller components and measurement tasks where compact marker points are preferred.

Black/white contrast

Particularly well-suited for systems that use optical pattern recognition.
Enables high recognition stability even with complex object shapes.

Magnetic adhesive surface

Ensures reliable fixation on metallic surfaces and enables repeatable measurement recordings.
Ideal for changing measurement grid positions and recurring testing processes.

Compatible with optical 3D scanners

Optimized for structured light scanners, striped light scanners and all systems that use dot patterns or marker contrasts for registration.

Delivered as a set of 500.

Perfect for medium-sized measurement tasks, serial measurements and technical applications in laboratory and production environments.

Application areas

These marker points are typically used for

1. Optical measurement of small to medium-sized components

Facilitates the registration of object surfaces in structured light measurements.

2. Geometric positioning

Helpful for technical components where fixed reference points are needed.

3. Testing and measurement processes in mechanical engineering

Supports precise position references in serial measurements and functional checks.

4. Changing measurement setups

The magnetic adhesion makes the dots ideal for projects where different components are regularly scanned.

5. 3D scanning with optical systems

Increases tracking stability for scanners that use visual markers for orientation.

Advantages of black/white magnetic dots

High optical detection reliability

The clear color contrast ensures stable identification through optical algorithms.

Precise placement without glue

Clean, reusable and ideal for delicate surfaces.

Perfect for tight geometries

The small diameter is ideal for detailed measurement tasks.

Efficient in application

Quick placement, quick removal, repositionable at any time.

Technical data

FAQ – Frequently Asked Questions

Are the magnetic points reusable?

Yes, they can be used as often as desired, as long as the surface is metallic and offers sufficient adhesive strength.

For which scanners are the dots suitable?

For all optical systems that use marker contrasts for object registration. Typical examples: GOM, Artec, Shining3D, ZG, Polyga, RangeVision.

Do the dots adhere to painted metal surfaces?

Yes, provided the substrate is metallic, the adhesion works reliably.

When should you use 3 mm points instead of 6 mm points?

3 mm is suitable for detailed areas, small objects and tight geometries.

Summary of the main benefits

• high-contrast black/white surface

• magnetic mounting for repeatable positioning

• Suitable for structured light scanners and optical 3D systems

• ideal for small components and technical parts

• 500 pieces for flexible measuring tasks and variable marker grids

• precise, clean and efficient application