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3D Scanning Spray: How & When to Use it

Other Case Studies

Enhancing The Outcome: Make it Visible

As you’d guess by now, we REALLY like 3D scanning. The accuracy, the efficiency and the ability to capture an object in its entirety is truly outstanding. With current 3D scanning technologies (structured light and laser based) there are a few surface types that present a real problem for 3D scanning: Transparent surfaces; shiny surfaces; and/or very dark surfaces.

We’d like to highlight that aside from transparent surfaces, Formeon has no trouble capturing data on these surfaces – even without the use of sublimating spray!

The Worst Offenders For Light Scattering & Challenging 3D Scanning

These troublesome surfaces each affect the 3D scanner’s job in a slightly different way but they all degrade the quality of the reflection of the light or laser in some way.

Transparent Surfaces

Transparent surfaces allow the light to simply pass through the surfaces resulting in no information returning to the 3D scanners sensors.

Shiny Surfaces (Not a problem for Formeon)

Shiny surfaces the reflects all the light but scatters the light in directions that can confuse the 3D scanners.

Dark Surfaces (Not a problem for Formeon)

Dark surfaces can absorb too much of the laser or light and not enough is reflected back to the scanner.

Overcoming This Obstacle: The Solution

Scanner settings can be adjusted to attempt to overcome these roadblocks but it often proves to be insufficient and extra steps have to be taken.

So what can be done?  

Creating an optimal, consistent and reliable substrate is as simple as using a sublimating (vanishing) scanning spray!

Manufacturers of 3D scanning spray specialise in creating sprays which can be applied to almost any surface and allows it to be scanned as reliably as possible and require no cleaning!

These sprays from Aesub (link) or ATTBLIME (link) can be applied from a rattle can or a paint sprayer and come in several varieties. These variations take differing times to disappear or in some cases are permanent, making them useful in small and large scans and everywhere between. These sprays are also free from harmful ingredients such as Titanium Dioxide, n-HEXANE and Adamantane.

The only consideration is the application of the spray. It is possible to create a build up of spray – think drips and build up  from a spray paint can. Otherwise the layer created by the spray is negligible for the vast majority of scan requirements – around 3.5 microns (0.0035mm).

Pretty much all industries, sectors and scanning subjects can benefit from the use of 3D scanning sprays – take a look at this time lapse of us spraying and scanning some MTB glasses. 

Without the use of a scanning spray, these glasses wouldn’t have been captured by any laser or structured light scanner but look at this perfect outcome.

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