The Importance of 3D Scanners in 3D Printing: Improving Precision and Efficiency
4 min
3D printing can quickly transform digital models into entities, while 3D scanning generates digital models by capturing the three-dimensional shape of an object. The two are closely linked to form an efficient cycle, which not only improves production efficiency, but also opens up new ideas for design and manufacturing, and promotes the realization of a variety of applications from prototyping, customization to reverse engineering.
Source: https://www.sculpteo.com/en/3d-learning-hub/basics-of-3d-printing/what-is-3d-scanning/
A 3D scanner is a device that analyzes objects or environments in the real world, designed to collect data such as their shape, size, and even color. This data is then processed into a digital 3D model that users can edit and optimize. These digital models are usually exported in formats such as STL, OBJ, or PLY, and ultimately used for 3D printing. Whether you are a professional designer or a 3D printing enthusiast, relying on the help of a 3D scanner can greatly improve the accuracy, efficiency, and overall quality of the model.
How 3D scanners work
A typical 3D scanner captures data through triangulation. The device projects a laser beam or structured light pattern onto the object and records the angle of deformation of the light on the surface of the object. This process captures a high-resolution point cloud from multiple angles and converts it into a mesh model that represents the 3D shape of the object.
There are two main types of 3D scanners commonly used for 3D printing:
Laser scanners: Generate 3D models by projecting laser light onto the surface of an object and measuring the distance from the laser source to the object.
Structured light scanners: Generate 3D models by projecting light patterns onto an object and capturing its deformation.
Source: https://www.blz-dental.com/what-is-a-dental-lab-scanner/
| Comparison items | Laser scanner | Structured light scanner |
| Working principle | Project laser and measure the distance of reflected light beam | Project light pattern and capture its deformed image |
| Accuracy | Extremely high, suitable for scanning fine objects | High, but slightly inferior to laser scanners |
| Scanning speed | Slow, point-by-point or line-by-line scanning | Fast, can scan the entire area at once |
| Applicable scenarios | Precision industry, complex parts, precision engineering | Human body scanning, artwork, large-area object scanning |
| Light and environment requirements | Low light requirements, suitable for complex lighting conditions | Sensitive to ambient light, need to control good lighting conditions |
| Price | More expensive, suitable for industrial-grade high-precision needs | Cheaper, suitable for individuals and small and medium-sized enterprises |
The role of 3D scanners in 3D printing
Using 3D scanners can bring many advantages to 3D printing projects:
1. Precision and accuracy: One of the biggest advantages of using 3D scanners is the ability to accurately capture complex shapes and details. This is critical for objects that require precise dimensions, such as to ensure that parts can be seamlessly spliced or accurately replicated. The generated digital 3D model can ensure high accuracy and reduce errors during the printing process.
2. Reverse Engineering: In the absence of existing design files, reverse engineering uses 3D scanners to obtain detailed geometric data of an object and convert it into an editable 3D model. It is particularly useful in industrial applications, especially when the original part is no longer available and the reproduction must be highly accurate.
3. Accelerate model making: Traditional digital modeling requires manual creation of 3D models, which is often time-consuming and laborious, especially when facing complex objects. 3D scanners simplify this process by directly scanning the object and generating digital files, greatly reducing the need for manual modeling and saving a lot of time.
4. Customization: With 3D scanners, objects can be easily scanned, digital designs modified, and then personalized versions printed. Whether it is modifying product prototypes, adjusting models to specific dimensions, or realizing personalized designs, 3D scanners can greatly simplify this process.
5. Digital archiving: Museums, designers, and researchers can create detailed 3D models of artifacts or products and save them in digital form for future reference or reproduction through 3D printing.
Source: https://www.aniwaa.com/guide/3d-printers/3d-printing-for-archeology-and-museology/
JLC3DP currently focuses on providing high-quality 3D printing services. We have a wide range of material options and professional technical support to ensure that your 3D model is accurately printed. If you already have a digital model, JLC3DP will be your ideal partner to transform your design into a physical product.
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