3D laser scanners are a hot topic these days. 3D laser scanning is an advanced technology with a market growth forecasted by some reports to grow at a CAGR of 7.5% from 2021 to 2026. Other research indicates that the 3D laser scanner market will likely reach $16.66 billion by 2030.
But what is a 3D laser scanner? What are 3D laser scanners used for? How can a company choose the best 3D laser scanner on the market? This article will give you all the details you need on 3D laser scanning.
A 3D laser scanner is a non-contact and non-destructive device that digitally captures 3D measurements of objects and their surrounding environments using lasers. As a user scans an object, the 3D laser scanner projects a coded pattern of light from the lasers. This coded pattern will match the shape of the object to create a digital version of it.
The digital copy of the object can then be exported as a polygon mesh file, which is a representation of the 3D model, and used in different computer-aided design (CAD), inspection or 3D printing software.
Depending on its brand, make and model, a 3D laser scanner can be used to scan all sorts of objects, regardless of the complexity of their geometries, shapes, size, materials and surface finishes. In fact, specialized 3D laser scanners can even scan human bodies and buildings!
Portable and handheld 3D laser scanners also enable operators to use them just about anywhere to acquire accurate 3D measurements no matter what the surrounding environment is like. Whether users need to scan a part right on the production floor, a pipeline that has been excavated, or a hard-to-reach and ultra-small component in a vehicle, 3D laser scanners can generate the data required for further processing.
You may be asking where are 3D laser scanners used? The simple answer is…virtually anywhere! At their basic concept, 3D laser scanners contribute to creating 3D models (or replicas) of physical objects. That means professionals in many different sectors use 3D laser scanners, such as:
In addition, thanks to the democratization of 3D laser scanning technologies, affordable and professional-grade 3D laser scanners are proving to be a boon for hobbyists, artists, tinkerers and everything in between. Check out some of the amazing projects that are carried out with more accessible 3D laser scanning solutions.
Now that you know what industries typically use 3D laser scanners, let’s explore the wide range of 3D laser scanning applications, including manufacturing. But remember: 3D laser scanners are not just for production.
Here are some examples:
|Product development and design||3D laser scanners can help engineers and industrial designers develop innovative new products, like high-performance street and offroad sport motorcycles.|
|3D printing (additive manufacturing)||Design teams can quickly create prototypes of parts or complete products using 3D laser scanners and a 3D printer.|
|Reverse engineering||Production teams use 3D laser scanners to reverse engineer critical parts for which they don’t have the original 3D models, such as in the automotive industry’s aftermarket.|
|Quality control and quality assurance||Inspection teams leverage high-end 3D laser scanners to improve the quality control in additive manufacturing processes for large parts.|
|Maintenance, repair and overhaul (MRO)||MRO professionals take advantage of 3D laser scanners to assess critical damage to aircraft components.|
|Non-destructive testing (NDT)||Carrying out inspections in nuclear power plants is facilitated by 3D laser scanners.|
|Science and education||Researchers and professors are teaching the engineers and industrial designers of tomorrow how to use 3D laser scanners in their field of work.|
|Medical and healthcare||Medical professionals and technicians use 3D laser scanners to create custom-moulded cranial remolding orthoses.|
|Heritage, archaeology, architecture and art||Heritage and art preservation/archiving is simplified when restorers use 3D laser scanners.|
|Multimedia, visual effects and the metaverse||3D laser scanners are used to create non-fungible token (NFTs) for digital art and 3D models in the metaverse.|
|Building and construction||The construction industry is increasing opting for 3D laser scanners for everything from validating design execution to creating building 3D models.|
While there is a variety of 3D measurement solutions available on the market, two solutions are often compared: portable 3D laser scanners and fixed coordinate measurement machines (CMMs).
Both technologies feature the accuracy levels required for professional use. A CMM is made up of a solid granite base table, gantry or bridge-mounted arm and a touch probe to be used for tactile measuring. It is often located in a laboratory or dedicated room because it can be very sensitive to ambient conditions, such as vibrations, dust, humidity levels, etc. The main advantage is that a CMM is highly accurate; however, it needs to be operated by an experienced metrologist, it can be slow, and is limited in flexibility. Parts need to be carried to the CMM, which makes it inefficient for accelerated throughput and difficult to use for large parts.
Portable 3D laser scanners are, in general also very accurate. Depending on the brand and model, they are fast at acquiring 3D measurements. What’s more, thanks to their intuitive interfaces and ergonomic designs, they are easy to use by operators of all skill levels. Also, because they are portable and robust, 3D laser scanners can be used right on a shop floor or outside; they can withstand harsh conditions without sacrificing data accuracy, reliability and repeatability.
Oftentimes, manufacturers, for example, will invest in both technologies. They will use the CMM for only the most important inspections that require the highest level of accuracy. 3D laser scanners are used for all other 3D measurements, eliminating bottlenecks at the CMM and improving overall productivity.
The price range of 3D laser scanners depends on the quality and performance levels of the devices.
Cheap 3D laser scanners can be found for less than $1000. Medium-price 3D laser scanners can hover in the tens of thousands. Metrology-grade 3D laser scanners, especially those used for automated quality control, Industry 4.0 processes, and critical product design applications with extremely tight tolerances and strict standards, can be priced at over $100K.
More often than not, companies don’t want to risk the significant operational costs and substantial business damage that can be caused by using below-par 3D laser scanners. Here are some instances of why using a low-cost 3D scanner in professional applications can be a huge mistake.
You can read this article for more information on the problems associated with low-cost 3D laser scanners for professionals here.
Selecting the right 3D laser scanner for your specific application depends on a myriad of factors. What should you consider when choosing a professional- and metrology-grade3D laser scanner?
Make sure you take the following criteria and functionality when purchasing a 3D laser scanning system: