3D scanner printing

How to Choose the Best 3D Scanner to Use With Your 3D Printer

3D scanning has an important place at the beginning and end of 3D fabrication workflows. Engineers, product designers, and researchers use 3D scanners as a faster and more efficient way to start constructing digital models, whether by incorporating existing designs via reverse engineering, digitizing hand-sculpted clay designs, or referencing the exact shape of the human body.

After fabrication, 3D scanning can support quality control and help to verify the accuracy of a 3D printed part, or, after the part has been used, a scanner can reveal how it’s performed—a scan of a deformed part can show you where to reinforce the design in the next revision.

With such a wide range of product options from handheld 3D scanners to desktop 3D scanners, it can be difficult to choose the best 3D scanning system that’s right for your application and budget. In this post, we explore the most important factors to consider when purchasing a 3D scanner and showcase some of the key applications that are empowered by combining 3D scanning and 3D printing.

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There are multiple scanning technologies currently on the market, all offering their own advantages and weaknesses.

Laser triangulation uses light projected onto the object to take up to millions of measurements (dots) per second. The light reflected from the dots back into the scanner’s sensor to help it capture the geometry of the object. These types of scanners are often the most accurate, and are great for highly detailed parts that have opaque surfaces.

Laser triangulation scanners do have limitations. For example, this technology is not used in most portable scanners because the laser dots need to project from a stable source, and the source has to be kept a close distance from the scanned object. Laser triangulation scanners don’t always work on transparent or shiny surfaces either. Typically, they require reflective markers to be applied onto the object, which need to be removed after use and can be an obstacle depending on the object being scanned.

Finally, the laser dots can be harmful to human eyes, so it is important to use extra safety precautions when scanning body parts with a laser triangulation system, or to check with your scanner manufacturer to make sure the device is eye-safe.

Structured light scanners (also known as white light scanners or blue light scanners) generally use a projector with two cameras at angles on either side. A pattern of light is projected and laid over the component being scanned, the cameras capture the ways in which the object deforms the light pattern, and then multiple images are integrated into a single 3D snapshot.

Structured light scanners are available in both stationary and portable format—the technology is the most commonly used process for handheld 3D scanners. Structured light scanners are far more common in medical applications, since it is safe to use on both humans and animals and excels when an object is not perfectly still. Traditional white light scanners have been slower to scan than laser triangulation scanners.

Structured light scanning is the most commonly used technology in handheld 3D scanners.

Depth-sensing cameras project a field of dots in infrared (IR) to sample a 3D scene. Depth-sensing cameras are simple to use and are the least expensive scanning option, but their accuracy and resolution are low, and fine details are sometimes lost. Large objects may be captured with depth-sensing cameras, but accuracy declines with increased distance from the subject and at steeper angles to the camera.

Photogrammetry means the act of deriving precise measurements from photographs. It involves taking a set of overlapping photos of an object, building, person, or environment, and converting them into a 3D model using a number of computer algorithms. This is the most commonly used method when creating a 3D scan with a smartphone, since modern phone cameras are capable of capturing and combining a large numbers of photos. Photogrammetry should be considered the least expensive and least accurate method for creating 3D prints, and is not suitable for serious business applications.

LiDAR (light detection and ranging) sensors can be found on some higher-end smartphones and tablets, such as the latest versions of the iPhone Pro and the iPad Pro. This has made the iPhone and iPad viable scanners for those with only occasional scanning needs, offering performance a step above devices that only have access to photogrammetry. Applications that generate 3D mesh files via your smartphone’s or tablet's camera should be seen as the floor for entry-level scanning; users should expect additional work in their CAD software to remove gaps in meshes and improve the 3D model for applications like sending it to a 3D printer. Smartphones use fewer light points when scanning objects, resulting in less detail than a true, stand-alone scanner. iPhones are good substitutes for scanners if you have significant CAD design ability or need to transfer basic models into a digital space.

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Scan accuracy varies considerably between scanner technologies, and higher accuracy generally comes at a higher cost. The required tolerances of your final part can be a helpful guide for determining your accuracy requirements for a 3D scanner.

High Price, Highest Accuracy ($15,000 and more)	More Affordable, High Accuracy ($12,000 and under)	Low price, Low Accuracy
Zeiss T-Scan Hawk Scantech Simscan EviXscan Optima+ M Creaform HandyScan 307 Silver Series	peel 3d peel 1, peel 2 & peel 2-S FARO Freestyle 2 Polyga Compact S1	iPhone Pro and iPad Pro Structure Sensor Matter and Form 3D Scanner V2 Revopoint POP

With accuracy in the range of 0. 1 mm or better, laser and structured light scanners are a good fit for professional applications and alongside high-resolution 3D printers. Formlabs stereolithography (SLA) 3D printers (such as the Form 3+) produce parts at a similar accuracy, and with a similar printable area, to the scan volume of many desktop 3D scanners.

Besides the accuracy between measured points and their actual location, scanners also vary in terms of resolution, which is the distance between captured points at a given scan distance. This means that details on the scanned object that are smaller than the scanner’s resolution won’t be captured. For example, a highly accurate 3D scanner with a lower resolution might detect the general shape of jewelry on a statue, but not clearly show individual details on a ring or necklace. Depending on your project requirements, this may or may not be a dealbreaker.

An easy way to remember these metrics is: accuracy is the measurement error between the part and digital value. Resolution refers to the density of measurements.

Accuracy can mean slightly different things depending on the manufacturer and 3D scanning technology. For example, the accuracy of handheld scanners depends on the distance to the subject and the quality of scan reconstruction, while desktop scanners have consistent accuracy within the constrained scan volume. If you are considering buying a 3D scanner for precise measurement, make sure to compare like to like.

In general, structured light scanning provides the best resolution and accuracy when compared to laser scanning. For some artistic use-cases for 3D scanning you may need a lot of detail, while overall accuracy is less important—especially if you don’t require your part to fit precisely with other parts in an assembly. In these cases, photogrammetry is an excellent low-cost option to explore.

Both depth-sensing cameras and photogrammetry are a good solution for scanning large objects in order to create 3D printed scale models and also offer enough accuracy for capturing the shape of the human body.

Several entry-level laser scanners are available using technology similar to higher-end systems. These scanners are a great way to start replicating small objects at 1:1 scale. As one would expect, the accuracy of entry-level laser 3D scanners is lower than a high-end scanner, but they can easily provide enough detail to replicate small decorative objects and figures where accuracy is not critical.

If you only have occasional 3D scanning needs, digitization services can scan your object, as well as perform CAD translation and accuracy inspection.

The area that a 3D scanner can capture varies significantly between scanners. Find a scanner that fits your size and resolution requirements without too much overhead, as cost typically increases with scan volume.

Handheld scanners can be manually moved around the object and have fewer size constraints than desktop models. Most inexpensive handheld scanners can capture objects from the size of a basketball to an entire room. High-end handheld scanners have an even wider range, and fill the niche for all objects that require precise measurements, but cannot fit in a desktop scanner. Handheld scanners are also able to capture objects nearly instantaneously, which makes them well-suited for taking human measurements (where the subject is not perfectly still) for ergonomics and medical applications.

If the area of the model can’t be seen by the scanner, it will cause a gap in the model. You can automatically repair small missing sections with most scan software programs to create a 3D printable model. However, repaired holes are rarely accurate to the original object. For parts that demand close to perfect accuracy, auto-repair of gaps or holes will not be sufficient. Read our MeshMixer tutorial for advanced tips to edit and repair 3D files for 3D printing.

Many scanners use turntables to increase what the scanner can see. The sophistication of a scanner’s turntable affects how easily and completely the object is captured: some scanners have the ability to move the object around multiple axes, imaging the object from more angles. This feature is important when reverse engineering plastic parts with deep recesses and ribs, which are impossible to capture from a single angle.

Scanners may rotate the object to capture occluded areas. Red regions are occluded and will be missing in the scan. Areas with deep relief are difficult for a single axis turntable to fully capture due to occlusion.

Cost concerns are straightforward; how much you are willing to spend on a scanner will reflect your business’s budget and how often the scanner is going to be used. Higher cost scanners will be able to capture small objects and create highly-detailed meshes that don’t require significant touch-ups in CAD software. Handheld scanners are also often on the higher end of the price range, due to their portable nature. The low-cost scanning market offers a wide range of options, but you have to know what to look for.

Use this flowchart to determine what scanner you need based on accuracy, scan volume, and budget.

Download the high-resolution version of this infographic here.

A 3D scanner expands the capabilities of a 3D printer, allowing you to replicate the shape of almost any object. Together, the two technologies create a powerful, digital workflow that can simplify and sophisticate processes in a range of industries.

The output from a 3D scanner is a mesh of triangles representing the surface of an object at a real-world scale. In some cases, the scan can be used directly to replicate objects without any CAD work. A hybrid workflow can also be powerful, where solid CAD models are combined with scanned 3D models. For example, customized ergonomics capture a physical imprint of a part of the human body, and integrate them with a mechanical design.

3D scanners are also valuable tools for measuring the accuracy of manufactured objects. Many factors affect 3D print accuracy, and metrology-grade 3D scanners provide a clear picture of how a material performs for demanding applications.

A variety of powerful workflows are enabled by combining a 3D printer and a 3D scanner:

Reverse engineering to create replacement parts, products with custom ergonomics, and more.
Replication and restoration of parts, especially in art and jewelry.
Consumer audio for creating custom earpieces.
Dental and medical applications, and how 3D scanning is enabling patient-specific workflows.
Metrology to validate and measure the accuracy of manufactured objects.

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Watch this webinar for a detailed look at how to start using 3D scanning to improve part design and production when paired with reverse engineering CAD and 3D printing.

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3D scanners and 3D printers are essential parts of digital workflows across industries. Download our white paper or watch our webinar to get a detailed look into how to start using 3D scanning to improve part design and production and learn how to pair 3D printing and 3D scanning to empower a variety of workflows in engineering, product design, and more.

Learn more about the 3D printer side of the equation: get to know stereolithography (SLA) and selective laser sintering (SLS) 3D printing technologies and see Formlabs advanced 3D printing materials for yourself with a free sample 3D printed part.

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3D Scanners: What Are the Best Available Low-Cost Solutions?

Published on July 16, 2022 by Carlota V.

3D scanning is often used in the additive manufacturing (AM) sector to design a 3D model more easily than via modeling software. It captures data that is then transformed into a 3D model which can then be 3D printed. 3D scanners are based on two main technologies – laser triangulation and structured light – which will allow to obtain more or less precise details depending on the chosen device. Several affordable solutions, compared to professional scanners which are much more expensive, are available today to allow many users to bring their projects to life: whether you are a maker, a teacher or an industry leader, on of these low cost 3D scanners is bound to suit your needs! Easy to handle and transport, we have chosen some 3D scanners under $8,000 (€7,000), sorted by increasing price.

3D Scanner 2.0 from XYZprinting

Taiwanese manufacturer, XYZprinting, currently offers 5 scanners, though today we will focus on one of their more low-cost 3D scanners, the portable and high-resolution 3D Scanner 2.0. With a wider scanning range than its younger sibling the 1.0 A, the scanner can scan objects that are 5 x 5 x 5 ~ 100 x 100 x 200 cm using an Intel® RealSense™ Camera. The scan resolution is also superior to the 1.0A, between 0.2 and 1.5 mm with an operating range ranging from 25 to 60 cm. The manufacturer also provides XYZScan Handy, a scanning and post-editing software to edit your models after scanning. The product is lightweight measuring 41 x 157 x 61 mm with a weight of 238 g. It is available from €199.

Structure Sensor from Occipital

The Structure Sensor solution adds precise 3D vision to your mobile device, enabling 3D scanning among other features. The only equipment you will need for this 3D scanner to work is an iPad, then once you have downloaded the app Skanect Pro, it will work instantly.

The new version of this device is smaller than the last, 109mm x 18mm x 24mm, and weighs about 65 g. It is recommended to use it on a 0.3 m to 5m scanning range. Some other features on this device include indoor mapping and virtual reality gaming! The Structure Sensor retails for $527, making it a low-cost scanner when compared to many other options.

POP 3D Scanner from Revopoint

The Revopoint POP is unique among 3D scanners as it has the distinction of being part of the highest crowdfunded campaign for a 3D scanner in Kickstarter, raising more than $2.28 million USD. It was developed by Revopoint, a company founded in 2014 by a group of young doctors and researchers from MIT, Kent University and other higher education institutions when they decided to focus on developing easy-to-use and cost-effective 3D scanners. It is safe to say that they certainly succeeded with their POP 3D scanner.
A binocular structured light 3D scanner that uses infrared as its light source, the Revopoint POP is a full-color scanner with an accuracy of up to 0. 3mm, texture scan and an 8Fps scanning speed. It has a number of interesting features, including the fact that it is easy to use outdoors because of it’s portable and can be powered by a power bank. With a cost of the scanner of only $549 in USA and about $599 in Europe, it is one of the most affordable options on our list, all while still being an effective, precise, high-resolution scanner. Not to mention, it can be used by a variety of users, as it supports four OS platforms – Windows, Android, Mac and iOS.

Creality CR-Scan 01

Known for its affordable desktop 3D printers, manufacturer Creality has also developed a low-cost 3D scanner, the CR-Scan 01. Weighing only 1.91 kilos, this portable scanner is easy to handle and offers a scanning area of 536 x 378 mm. You will be able to scan your objects with an accuracy of up to 0.1 mm and export them in stl or obj format. Several scanning modes are offered, either manual or on a turntable. It is currently available from 589 €.

SOL 3D Scanner from Scan Dimension

This scanner was developed by Scan Dimension, based in Denmark, and is essentially a hybrid solution. It uses a combination of laser triangulation and white light technology to 3D scan real-life objects. The SOL 3D scanner can provide a resolution of up to 0.1 mm. The 3D scanning process is automated and you can choose between a near and far scanning mode.

The SOL 3D scanner also includes software to simplify your entire workflow. In a few steps you will be sending your 3D model to your 3D printer. This is a solution meant for makers, hobbyists, educators and entrepreneurs who may not have the most experience with 3D scanners but still want to achieve great results with a relatively low cost. The SOL 3D scanner retails for $699.

V2 from Matter & Form

The Matter and Form 3D Scanner V2 is a desktop 3D scanning solution manufactured by Matter & Form, a company founded in 2013. This company has made it its mission to develop and distribute affordable, high-resolution 3D scanners. With the V2, it has achieved that mission: the 3D scanner is available from $750 and is capable of producing high-quality scans with an accuracy of up to 0.1 mm. It weighs 1.71 kilograms (3.77 lbs) and has a height of 35.5 cm (13.5 in) and a width of 21 cm (8.25 in). The slim and foldable design allows the device to fit on small desks. The V2 allows scanning of objects with a maximum height of 25 cm (9.8 in) and a diameter of 18 cm (7.0 in). Windows and Mac scan files are supported, with multiple export options for 3D printing as well.

RangeVision NEO

The NEO 3D scanner from the manufacturer RangeVision is an entry-level device with two 2-megapixel cameras, which works using Structured Light Scanning (SLS) technology. With an automatic scan mode, the scanner is suitable for all those who have little experience in digitizing objects. The SLS-3D scanner can capture objects from 30mm to 1200mm with a precision of 0.05mm, with 3D scans created using RangeVision software. Also included is a turntable and tripod, which make scanning easier for the user. According to the manufacturer, the NEO’s scans are suitable for reverse engineering, 3D modeling, historic preservation and, of course, 3D printing. The RangeVision NEO is available from around €2,190, making it one of the few low cost desktop 3D scanners available.

Calibry, the low-cost 3D scanner, from Thor3D

Thor3D is a Russian manufacturer that is behind the Calibry portable 3D scanner. Based on structured light technology, it integrates a touch screen so that the user can follow the points it captures in real time. It offers accuracy down to 0.1 mm and is capable of scanning objects from 30 cm to 10 meters long. Black and glossy surfaces can be easily scanned and exported in stl, obj, ply or WRML formats. Finally, the Calibry is fast and convenient, capable of scanning up to 3 million points per second and weighing only 900 grams. It is available from 4,990 euros.

EINSCAN H from Shining 3D

The EinScan H is one of the most advanced versions of portable 3D scanners developed by the Chinese manufacturer Shining3D. Based on the hybrid structure light technology of LED and invisible infrared light, the EinScan H is able to perform human face scans more comfortably and without emitting strong light. It also incorporates a full-color camera and a large field of view for a truly impressive final quality of the models, ready for processing in just a few minutes. Its high resolution of 0.25 mm and data accuracy down to 0.05 mm make this a good choice in the market considering the price/performance ratio. In addition, it stands out for its light weight of almost 700g and intuitive user interface. The base price of this model is $5000 and you can get more information on the manufacturer’s website.

Eva Lite from Artec 3D

Artec 3D, based in Luxembourg, offers the Eva Lite as its cheapest option for 3D scanning. This professional scanner is specialized in the digitization of complex geometries, such as the human body, and is therefore increasingly used in the medical field. It works on the basis of structured light technology and, although it does not have the ability to capture colours and textures like most scanners of the brand, it has an accuracy of 0.5 mm.

This 3D scanner works with the software package Artec Studio. Artec Studio is a powerful tool for an optimized 3D scanning process. This software is able to perform, assemble and repair 3D scans. It is currently available at a price of $9,800. You can find more information HERE.

Any other low cost 3D printing scanners you think should be on this list? Let us know in a comment below or on our Facebook and Twitter pages! And remember to sign up for our free weekly Newsletter, to get all the latest news in 3D printing send straight to your inbox! For more 3Dnatives articles about 3D scanners, click HERE.

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3D scanner printing

How to Choose the Best 3D Scanner to Use With Your 3D Printer

3D Scanners: What Are the Best Available Low-Cost Solutions?

Structure Sensor from Occipital

POP 3D Scanner from Revopoint

Creality CR-Scan 01

SOL 3D Scanner from Scan Dimension

V2 from Matter & Form

RangeVision NEO

Calibry, the low-cost 3D scanner, from Thor3D

EINSCAN H from Shining 3D

Eva Lite from Artec 3D

Services for companies working with 3D equipment

3D-service center in Moscow 9002 9002 to order

3D scanning to order

3D modeling

3D to order

Custom 3D scanning

3D-modeling

3D equipment to fit your needs and budget

Free consultation on choosing 3D equipment

Demonstration of 3D equipment capabilities

Calculation of payback for 3D printers and 3D scanners

Free consultation for the choice of 3D equipment

Demonstration of 3D equipment capabilities

Calculating the payback of 3D printers and 3D scanners

Organize the appetite production of turnkey metal products

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Step 2. Development of a solution for additive production

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3D Printers and Scanners - Glossary of Terms and Definitions

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