How to Choose 3D Scanner Target Dots: Reflective vs White
Quick answer: Start with your scanner model. Target material, visible diameter, and mounting method all need to be compatible with the scanner's optical tracking system. Choosing by sticker size alone can cause unreliable tracking.
Reflective or white reference targets?
Retroreflective targets return light toward its source and are widely used by handheld laser scanners and some photogrammetry workflows. Matte white, high-contrast targets are common in structured-light scanning. These groups are not universally interchangeable; use your scanner's supported target type.
Choose the visible target diameter
Check the scanner manual, existing targets, or our scanner compatibility guide. A product's advertised 3 mm, 6 mm, or 12 mm dimension generally describes the visible inner target, not the outer backing. For structured-light systems, measuring volume and camera scale may determine which target size is recognized.
Match adhesive to the part
Standard adhesive suits routine work. Light adhesive is useful for quick removal from approved finishes; strong adhesive can be appropriate for repeated handling. Magnetic or repositionable targets work on appropriate fixtures if they remain immobile relative to the part.
Sheet, roll, or fixture?
Sheets offer easy selection and careful placement. Rolls can speed repeatable, high-volume setups. Magnetic fixtures and rigid target frames reduce sticker consumption for suitable workflows, but require scanner compatibility.
Validate before placing hundreds
Place a small sample in an irregular pattern, check recognition at normal working distance, and scan from multiple angles. Confirm that markers do not obscure important surfaces or measurement datums.
Related 3D scanning guides
After choosing your target material, use our 3 mm versus 6 mm versus 12 mm sizing guide, the step-by-step placement guide, and marker-count and spacing guidance. These articles cover the next steps in the same workflow.
Frequently asked questions
Are all 6 mm targets the same?
No. Reflectivity, contrast, adhesive, concentricity, and outer diameter may differ.
Can white targets replace reflective ones?
Only if the scanner's specified detection method supports them.
Further reading and supplies: Find targets for your scanner. Check the current equipment manual and product technical documentation for your specific setup.
How we select and verify technical sources ↗
Technical guidance is general. Check your scanner documentation and the relevant manufacturer's current technical and safety data sheets before applying products to sensitive parts.
