How to use a handheld 3D scanner and what are the precautions.

There are 3 types of scanning methods of handheld laser 3D scanners, and the differences are: The first type of 3D scanner: point measurement.

It is suitable for detecting the shape and position tolerance of the surface of the object. The advantage of reflecting the surface characteristics of the object through each measurement point is that it is highly accurate, but the speed is slow, and if you want to do reverse engineering, you can only have the advantage of measuring objects with high precision geometric tolerances. The second type of 3D scanner:

Line measurements. Suitable for scanning small and medium-sized objects, the scanning depth of field is small (generally only 5 cm), the accuracy is high, this generation of the system is relatively mature, and the accuracy of its new products has reached microns. Therefore, in terms of accuracy, it is comparable to shoulder point scanning.

The speed has been greatly improved. In the field of high-precision industrial design, there will be a wide range of applications. An effective laser line through a section (usually a few centimeters, the laser line will diverge if it is too long)....

Are you using a Creaform scanner? Laser or white? Which model?

1. When generally using, pay attention to the connection of the wire, the data cable and the power cord can not be folded to the dead end, and the connection of the line cannot be suspended when scanning.

2. The calibration plate is glass, it must be handled gently, put it away and put it in the box when not in use, and the points in the calibration plate cannot be touched by hand.

3. After the scanner is used, the scanning body (machine) should be placed on the edge of the original table, if it is a scene, it can be placed on the ground, but it should be noted that it should be placed in a safe place.

4. If it is laser, you need to paste the dots, and the dots should not be pasted too evenly, and they should be pasted at will, but not on the edges. Wait.

Hualang handheld 3D scanners are used by our company to scan automobile cylinder heads and sheet metal.

The scanned data is very good, but for some reflective and transparent objects, it needs to be dusted, and it is also necessary to paste points due to the need for automatic splicing.

At first, it was not very acceptable, but after Hualang technical explanation, due to the high requirements for the accuracy of the data, it is necessary to paste the point, and there is no equipment for spraying powder abroad, but the accuracy will be relatively low, and it will not meet the requirements and the first is also very high. So there are not many handheld devices from Hualang. The feature is that it is small and portable, out-of-the-box, no need for calibration, automatic splicing, etc., and you can go to them to see the rest.

How to use a 3D scanner: First, place the object to be measured in the measurement space of the 3D scanner.

Then, through a computer operation program, the laser scanner scans the object, collects the points on the surface of the object, and converts these points into a three-dimensional model. Finally, the 3D model is processed by computer software, and the complete data of the object can be obtained, including size, shape, and modification materials.

The use of a 3D scanner can save a lot of time and can accurately and quickly measure the shape of an object without the need for manual measurements for a long time. In addition, 3D scanners can also be used to scan and analyze the surface details of objects and measure the exact dimensions of objects without damaging them, which is not possible with traditional measurement methods.

Features of the 3D scanner

The purpose of a 3D scanner is to create a point cloud of an object's geometric surface, which can be interpolated into the surface shape of the object, and the denser the point cloud, the more accurate the model can be created (a process called 3D reconstruction). If the scanner is able to capture the surface color, it can further apply the material paste to the reconstructed surface, the so-called material imprint.

3D scanners can be compared to cameras, and their line of sight is cone-shaped, and the collection of information is limited to a certain range. The difference between the two is that the camera captures color information, while the 3D scanner measures distance. Because the measured results contain depth information, they are often referred to as depth** or distance**.

Look at what kind of scanner has laser and white light, the laser emitter will have old damage machine overheating will affect the accuracy of data acquisition, and the external light of white light will have an impact on its scanning. This variety of scanners is different.

When using structured light 3D scanning, the following points should be noted: 1. Avoid vibration of the equipment during the scanning process, 2. The influence of the environment (whether there are reflectors), 3. Whether the indoor temperature is within the range of use, 4. Whether the equipment has normal exhaust air, etc., will affect the scanning results.

It should be noted that you can't move during the measurement process, and the requirements for light are also very high, and people should teach you how to use the equipment when you buy it, including daily maintenance or something.

During the operation of the equipment, it must be operated correctly in strict accordance with the instruction manual and the specifications of use. A lot of equipment damage is usually not paid attention to details, such as using a damp cloth to wipe the equipment, strong vibration, etc., will cause the abnormal operation of the equipment to cause errors, don't challenge its limit, very expensive, hehe.

Environmental impact: temperature, humidity, brightness of lights, avoiding floating dust, etc.; Influence of the equipment itself: avoid strong vibrations, if the accuracy of the vibration equipment will be affected, it should be recalibrated.

It should be the way to use it, and the wrong way to use it will lead to a decrease in accuracy.

Depending on what scanner you are using, what I know is the precautions for structured light, which are actually similar, summarized in the following points:

1. Ambient light, the intensity of light has an impact on your measurement and measurement results when you use it;

2. Temperature and humidity will also affect the measurement results, (the requirements are normal temperature and suitable humidity);

3. Whether the exhaust is smooth during use, etc., will affect the results of your measurement, the influencing factors and matters to pay attention to are many, you will have a manual when you buy the equipment, you can do it according to the manual......Hope it works for you.

I don't know what type of 3D scanner you're talking about. Structured light 3D scanners (normal light) and laser 3D scanners are commonly used today.

1.Because it is an optical device, it is necessary to pay attention to the influence of other light on the device. This may affect the accuracy of the device.

2.Then it is necessary to pay attention to the preservation and daily maintenance of the instrument. Some methods are also needed when it comes to cleaning.

3.And then there are some tips to look out for, such as calibration and measurement methods. These require long-term use and experience.

If you are a laser 3D scanning device. Just be careful not to let the laser affect your eyes. There is also a laser transmitter that can be very hot when used for a long time. Pay attention to heat dissipation. It should be more expensive to replace.

Collect the three-dimensional spatial coordinates of each point of the measured surface of the scanned object to provide original three-dimensional data for reverse modeling, three-dimensional detection, etc.

It is mainly used for scanning objects to obtain three-dimensional data, and then applied to three-dimensional detection and reverse modeling. Call me ** for specific information, the number is my username.

Quickly present a three-dimensional perspective graph composed of points, lines, and surfaces in the 3D software.

Scan the object to obtain its 3D data.

In the field of industrial optical measurement, the main use of 3D scanners is reverse and quality inspection.

Reverse refers to the data collection and processing of the surface of the physical sample of the product, which can be completed with the help of a 3D scanner. Then, the software that can realize the reverse 3D modeling design is used to reconstruct the 3D CAD model of the physical object (surface model reconstruction), and the CAD CAE CAM system is further used to realize analysis, re-CNC programming, and processing. Reverse design is usually a design that is applied to the surface of the product's appearance.

In a popular sense, product quality testing uses a 3D scanner to collect the 3D data of the physical sample, compare it with the original 3D design data, and display the comparison results with a chromatogram. Xintuo 3D XTOM 3D scanner is developed and manufactured for industrial-grade 3D digital inspection, and is suitable for the whole process of digital processing of industrial inspection. The 3D scanner has high-precision detail measurement performance and industrial-grade stability, and is suitable for high-precision data measurement in various harsh industrial environments.

There are three ways to use handheld 3D scanners;

The advantage of laser scanning is that it can scan all kinds of objects without surface treatment;

White light scanning: The scanning quality is better, and the work intensity is lower;

Infrared inductive scanning has fast scanning speed and low accuracy;

One is fractional laser scanning and the other is line laser scanning.

Fractional lasers are much better for scanning the human body. Line lasers are much better for scanning objects.

The purpose of a 3D scanner is to create a point cloud of the geometric surface of an object.

The main purpose of the Veterans is to create a point cloud of the geometric surface of the object, and by interpolating into the surface shape of the object, the denser the point cloud can be used to create a more accurate model.

If the scanner is able to capture the surface color, it can further apply a material map to the reconstructed surface, known as material imprint. Point cloud technology can be used for applications such as 3D modeling, surface texture generation, and more, providing powerful tools and solutions for the manufacturing and design worlds.

A 3D scanner is a scientific instrument used to detect and analyze the shape (geometry) and appearance data (e.g., color, surface albedo, etc.) of objects or environments in the real world. The collected data is often used for 3D reconstruction calculations to create digital models of actual objects in the virtual world.

Applications of 3D scanners

1. Reverse engineering.

Reverse engineering is a technical process, that is, to conduct reverse analysis and research on a target product, so as to deduce and derive the design elements such as the processing process, organizational structure, functional performance specifications and other design elements of the product, so as to produce products with similar functions but not exactly the same. Reverse engineering originates from hardware analysis in the commercial and military fields.

2. Cultural assets.

Through 3D scanning, various objects can be recorded and used as cultural assets, from various cultural relics and artworks to historical buildings, neighborhood buildings and even the entire urban environment.

The above content refers to Encyclopedia - 3D Scanner.

First: Preliminary preparation (mainly divided into three steps).

Step 1: Ensure a stable 3D scanning environment.

The first step in performing 3D scanning is to ensure that the 3D scanner is built in a stable environment (including light environment: avoid bright light and backlight cross-lighting; The robustness of the 3D scanner, etc.), to minimize environmental damage and ensure that the 3D scan results are not affected by external factors.

Step 2: 3D Scanner Calibration (Learning Required).

Calibration of the machine is a crucial step before 3D scanning. A 3D scanner needs to know what environment it is scanning in order to scan accurate 3D data. In the process of calibrating the stove, the position of the scanning device relative to the scanned object should be calculated according to the scanning mode preset by the 3D scanner.

When calibrating the scanner, the 3D scanning environment set by the device system should be adjusted according to the object being scanned. Correct camera settings can affect the accuracy of the scan data, so it's important to make sure that the settings are correct. Calibration work is carried out in strict accordance with the manufacturer's instructions, carefully correcting inaccurate 3D data.

After calibration, the comparison can be checked by scanning the measured object with known 3D data with the 3D scanner, and if the accuracy of the scanner is found to be unattainable, the scanner needs to be recalibrated.

Step 3: Treat the surface of the scanned object.

Some surfaces are more difficult to scan. These objects include translucent materials (glass, jade), shiny, or darker objects. For these objects, it is necessary to cover the surface of the scanned object with a matte white developer, and spray a thin layer of developer on the scanned object, in order to better scan the three-dimensional features of the object, and the data will be more accurate.

It should be noted that spraying too much developer will cause the thickness of the object to superimpose, which will affect the scanning accuracy. Note: The developer will not cause damage to the surface of the object and the human body, and can be washed off with water after the scan is completed.

Second: Start the scanning work.

Once the preparation is complete, the object can be scanned. Use a 3D scanner to capture 3D data from different angles of the scanned object, change the way the object is placed or adjust the camera orientation of the 3D scanner to scan the object in all directions.

Third: post-processing work (mainly in two steps, relatively simple).

Step 1: Point cloud processing.

At present, the popular 3D scanners on the market are all point cloud automatic stitching methods, without manual splicing in the later stage, that is, after the surface of the object is scanned, the system will automatically generate the 3D point cloud graphics of the object. However, it is necessary for the operator to remove noise (i.e., excess point clouds) and smooth the scanned point cloud data.

Step 2: Data Conversion.

After the point cloud is processed, the data needs to be converted, and the system software automatically converts the point cloud data directly into STL files. The generated STL data can be interfaced with commercially available 3D software.

Linktour Instruments can provide a total solution for 3D scanner testing.