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LET'S TALK ABOUT 3D SCANNING

Transcan C 3D Scanner for Artifact Preservation and Digital Archiving

11/21/2024

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There are many museums like the Smithsonian that need to preserve and document fragile artifacts, including ancient sculptures and pottery. These objects require high-detail imaging for research, virtual exhibitions, and creating replicas for display, as handling them frequently risks damage.

For such use case,  Transcan C, a professional-grade 3D scanner, is utilized to capture precise 3D models of the artifacts with high resolution color ensuring their preservation and accessibility without physical handling.

Workflow

1. Preparation
  • The artifact is placed on a rotating platform in the scanning area, ensuring stable positioning.
  • Environmental conditions are controlled (lighting, vibration-free setup) to optimize scan accuracy and detail capture.
2. Scanning Process
  • The Transcan C is configured for its dual-scan range and high-resolution capabilities (up to 0.035mm accuracy).
  • Using its multi-resolution settings, the scanner captures both the macro details (e.g., texture, cracks, carvings) and overall geometry of the artifact.
  • The scanner’s color texture capture ensures that even intricate color patterns and surface textures are accurately recorded.
  • It's a fully automated 3D scanning experience with the automated turntable.
3. Digital Processing
  • The scanned data is imported and post-processed with the 3D scanner software.
  • The museum team uses the 3D scanner software to clean, align, and merge the scans into a seamless 3D model.
  • The 3D model retains intricate details, making it suitable for study, sharing, or replication.
  • The 3D model can be saved as an STL file to be 3D printed as well.

4. Applications
  1. Digital Archive:
    • The 3D model is stored in a secure digital database for future reference and research.
    • The artifact can be digitally "handled" by researchers without risking damage to the original piece.
  2. Virtual Exhibitions:
    • The model is displayed in virtual reality (VR) or online platforms, allowing visitors worldwide to explore the artifact in a detailed 3D environment.
  3. Replica Creation:
    • 3D printing or CNC machining uses the scanned data to create high-fidelity replicas for display, allowing the original artifact to remain in controlled storage.
  4. Education:
    • The 3D model is integrated into interactive museum kiosks or AR apps for educational purposes, providing an immersive learning experience.

Benefits
  1. Preservation:
    • High-detail scans ensure the artifact's legacy is preserved digitally, even if the original deteriorates over time.
  2. Accessibility:
    • Digital models make artifacts accessible to global audiences, researchers, and educators.
  3. Non-Invasive:
    • The scanning process does not involve physical contact, preserving the artifact’s integrity.
  4. Versatility:
    • The same data can be repurposed for multiple applications, from research to public engagement.

We can think of examples such as a museum using the Transcan C to scan a delicate, intricately painted ceramic vase from 300 BC. The scanner captures its geometry and detailed color patterns, allowing:
  • Researchers to study the artifact's design.
  • The creation of a digital twin for a VR exhibit.
  • 3D printing of a replica for display in a children’s hands-on exhibit.

​The Transcan C ensures the artifact's story is preserved, shared, and celebrated without risking the original’s safety.

Transcan C

$4,899.00
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Growshapes the official U.S. distributor of Shining 3D EinScan 3D scanners. We now carry the eviXscan 3D scanner and THREE from Matter and Form as well!

​See the innovators on Growshapes’ social media channels to get the latest expert news on innovation in 3D digitization, then share your thoughts and join the conversation about 3D digital innovation with #digitize3D
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Reverse Engineering with 3D Scanners

2/2/2023

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Are you still using calipers? Have you tried reverse engineering using 3D scanners? It's a new tool for an old task.

Merriam-Webster defines reverse engineering as "the process of disassembling and examining a product or device to discover the concepts involved in its manufacture, usually with the goal of producing something similar."

As the design process is beoming digitized, reverse engineering today is more commonly associated with the process of converting a physical object’s geometry into a digital 3D model and replicating the original design or further improving for new manufacturing processes such as additive manufacturing. More engineers are moving away from using calipers and adopting 3D scanners to take measurements, especially of complex parts.
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Reverse Engineering Model, Courtesy of Shining 3D

3D scanners allows you to digitally capture the geometry of even the most complex parts in an extraordinarily quick and precise manner. A large docking pump was recently captured in just 20 minutes for example, with the help of laser 3D scanning. This technology has enabled the use of reverse engineering in situations beyond simple benchmarking and part reproduction, as we explore in the next section.

Main Applications for 3D Scanning & Reverse Engineering

Reverse engineering with 3D scanning offers many possibilities for product development and manufacturing. Overall, the different uses of reverse engineering can be divided into three major applications: (1) to replicate parts,  (2) to create variations of existing parts, or (3) to develop entirely new parts based on an existing environment or object. Let's look at each application in a bit more detail.

1. Recreate & Replicate Parts

One of the most popular uses for 3D scanners is recreating damaged or worn-out parts that are unavailable from the original supplier or lack proper documentation. This is a common problem when working with old machinery or vintage vehicles, and it’s always challenging to do with manual reverse engineering tools like calipers. However, with a good 3D scanner and the proper software, it can become a straightforward task.

Katsuya Tanabiki, for example, shared his process of reverse engineering a shield notch on an old motorcycle helmet. The helmet featured two shield notches, but one was broken, and it was too difficult to obtain a replacement notch. This tiny part was 3D scanned with an EinScan Pro 2X in Fixed Mode, and later 3D printed.
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Photo: Courtesy of Shining 3D
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Photo: Courtesy of Shining 3D
Sometimes the actual fabrication of the part is not the end goal. In aerospace and automotive industries reverse engineering is adopted to digitize components and create digital inventories of legacy parts. These digitized components are known as “digital twins”.

In generating a "digital twin', 3D scanning is indispensable to capture the intricate details of the parts with strict dimensional requirements to meet the required standards. Take for example, 
this small turbine reverse-engineered by Print3DD. The distinguishing geometry of its blades would be impossible to reproduce accurately without 3D scanning.
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Small Turbine Photo: Courtesy of Shining 3D
2.  Improve The Design of Existing Parts
​

Another goal of reverse engineering is to use digitized parts to create new and improved variants instead of merely reproducing them. This method can significantly reduce the time and costs of creating parts from scratch and also ensures a perfect fit for components belonging to larger assemblies.

Taiwanese company Kiden Design has illustrated the reverse engineering process of optimizing a pipe using 3D scanning, CAD, and 3D printing. The EinScan Pro HD 3D scanner, used in Handheld mode, captured the irregular geometry of the pipe on two opposite sides that were stitched together later in software.  Thanks to the accurate 3D model obtained, the geometry could be easily optimized in CAD.
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Optimizing the Pipe Design Photo: Courtesy of Shining 3D
Another good example of reverse engineering being used to create new versions of a physical objects is the customization of furniture parts with 3D scanning and CNC wood carving by Voxel 3D. In this project, the carved ornaments of one piece of furniture were digitized with 3D scanning and integrated into different parts.
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3.  Create & Design Entirely New Parts

Another application for reverse engineering is where a part is digitized as a reference to create entirely new parts. This procedure is usually employed when a tight fit is required on an existing part that is too complex or has an irregular interface.
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Kick Panel Design Process, Courtesy of Shining 3D
To illustrate this, let’s look at a use case from the Fuller Moto automotive customization shop. Bryan Fuller and his team used the EinScan Pro 2X Plus to 3D scan the entire footwell of a 1967 Lincoln Continental. The digitized region was used as a reference to design a new kick panel, and the precise 3D model of the footwell made it possible for the new part to fit flawlessly in the customized car.

​This particular technique is also commonly practiced by medical professionals since body parts are unique and challenging to accurately replicate using manual methods. Here, 3D scanning once again has proven to be an efficient tool for digitizing human parts and surfaces.

Earmolds, for example, are patient-specific parts that help conduct sound from the hearing aids to the ear canal. Servicing or creating new earmolds from scratch can take several weeks during which patients experience hearing problems without them. However, thanks to reverse engineering methods with 3D scanning and 3D printing, the Hearing Beyond Audiology Clinic in Toronto can produce temporary earmolds in just one day. The temporary accessory allows patients to keep their hearing while waiting for the earmolds to be produced or serviced in other facilities.  Similar reverse engineering methods with 3D scanning are also utilized for producing facial prosthetics and custom orthotics.
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Earmolds Photo: Courtesy of Shining 3D

Quality Data Capture Is Key for Successful Reverse Engineeing

​The use cases above clearly demonstrate the central role of 3D scanning in reverse engineering. It comes as no surprise that the effectiveness and accuracy of data captured by 3D scanning are crucial for a successful reverse engineering process. Yet, the software tools used for processing the data and working with the 3D models are also essential for achieving the desired results in reverse engineering. To understand the importance of good data and adequate software, let’s go over the main steps of reverse engineering with 3D scanning.
Step 1. Data acquisition

The very first step in any reverse engineering process is data acquisition. Regardless of the method, proper planning and preparation can make the difference between good and poor data. With 3D scanning, this involves selecting the correct device for the job, including the proper configuration (handheld or stationary) and accessories such as turntables, fixtures, and calibration panels. Correct calibration of the device is also vital to acquire quality data.

The regions or parts to be digitized usually demand some kind of preparation. Besides a good cleaning, some 3D scanning devices also require the use of markers or even special coatings on reflective surfaces. One should also consider the ambient conditions before starting the digitization process. A controlled environment (e.g. indoors, without direct sunlight, a cleared tabletop, …) is always preferred to reduce noise in the data, but that’s not always possible. All the factors mentioned will contribute to proper data collection, which will in turn determine how quickly and easily the data can be processed next.

Step 2.  Post-Processing

The next step in a reverse engineering process is post-processing the acquired data, or the  “point cloud”. Here, the point cloud is processed by software tools – like EinScan software – resulting in a 3D mesh representation of the digitized object.
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Point Cloud Image

In any case, the 3D model in this initial stage usually requires some refinement like removing unwanted captured data, repairing surfaces, and filling gaps per below.
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3D mesh data editing, Courtesy of Shining 3D

​The better the data quality acquired, the less post-processing and repairing will be needed. The post-processing step is also when reference entities are assigned to the 3D model, a procedure that should expedite the next stage of the reverse engineering process.

Step 3. CAD Model Generation

The final step in a reverse engineering process is to convert the mesh representation of the physical object captured by the 3D scanner into a solid 3D model.
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CAD Model from 3D Scan Photo: Courtesy of Shining 3D

As accurate as the mesh model can be, it is inadequate for most reverse engineering applications that require additional handling like fixing any physical damage, creating variations, or designing new parts altogether. In this stage, the refined mesh model from the previous step works as an exact reference model for recreating the model using parametric CAD tools.

Although in theory any general-purpose CAD program could handle this, specially purposed software geared towards reverse engineering can make the process much easier and yield much better results too.
An appropriate CAD software for reverse engineering can also compare the digitized model to the parametric one, allowing users to check for geometrical and dimensional differences.

Conclusion

​
Reverse engineering has come a long way and 3D scanning technologies have broadened the range of industrial applications for reverse engineering, benefiting both businesses and consumers. 

The quality of the captured data is crucial to obtain good results in reverse engineering. The choice of the 3D scanning device, as well as its capabilities and functions, play a central role in the success of the entire process.  Read further about how to make sure you choose the right model for your project here.
​
Though often overlooked or underestimated, the software used in the later stages of reverse engineering also bears great importance. Specific built-in tools for the job can make a big difference in a well-executed reverse engineering process.

​​Growshapes the official U.S. distributor of Shining 3D EinScan 3D scanners. We now carry the eviXscan 3D scanner from Evatronix as well!

​See the innovators on Growshapes’ social media channels to get the latest expert news on innovation in 3D digitization, then share your thoughts and join the conversation about 3D digital innovation with #digitize3D
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Capture richer details in face scan mode for EinScan H!

8/20/2021

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EinScan H users, download the latest software version V1.0.5.3 Exscan H that enables the capture of fine details when using Infrared Scanning, Face Scan Mode.

With the newly developed algorithm, the software can capture more details around the face with invisible Infrared light. Check out the details below.
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EinScan H is also useful in making 3D digital replicas of ancient artifacts which may be sensitive to white light.
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​The combination of great hardware and software truly makes a difference in how much detail can be captured with 3D scanning technology. The team behind EinScan 3D scanners continues to innovate pushing frequent software updates and develping new software algorithms, so make sure you have the latest software to get the benefits of all the new features!

Growshapes is an HP Silver Partner of HP 3D scanning solutions and the official U.S. distributor of Shining 3D EinScan 3D scanners. We are now carry the eviXscan 3D scanner from Evatronix as well!

​See the innovators on Growshapes’ social media channels to get the latest expert news on innovation in 3D digitization, then share your thoughts and join the conversation about 3D digital innovation with #digitize3D.
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What the coronaviruses look like in 3D

4/3/2020

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It is interesting to see the different visualization of the coronaviruses and it is quite mesmerizing to look at its structures and the colors. The CDC medical illustrators developed the iconic visualisation of the coronavirus to "grab the public's attention" while 3D surface models of the coronavirus COVID-19 are being developed to provide guidance to scientists.  But in reality, these coronaviruses are so small that they can be only seen by an electron microscope in which no light source is used. Therefore, all these colors are actually arbitrary according to this article.  

Making the invisible visible does help us understand what we are facing better vs. not having any imagery at all.
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Photo Courtesy of American Society of Microbiology
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Photo courtesy of CDC
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Photo Courtesy of Drug Target Review
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Photo courtesy of CDC

Below are some amazing 3D models posted on Sketchfab developed by so many talented people around the world too. 

Novel Coronavirus | 2019-nCoV by Musa Batuhan Yolcu on Sketchfab

Coronavirus Covid-19 Virus by layne on Sketchfab

Coronavirus / COVID-19 / Virus by Evan Pachon on Sketchfab

COVID-19 by abdullahjavedyo90 on Sketchfab


India is taking a novel approach to educate people about the coronavirus.
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Police officer wearing a corona virus helmut to warn the public. Photo courtesy of the Indepent.

Visual aids definitely make it easier for us to understand the existence of the virus. ​Only if we could see the coronavirus.......
​
​Stay safe and stay home!

Growshapes will be open for 3D scanner purchases and shipment, as long as UPS continue to deliver!

Growshapes is an HP Silver Partner of HP 3D scanning solutions and the official U.S. distributor of Shining 3D EinScan 3D scanners. We are now carrying the eviXscan 3D scanner from Evatronix too!

​See the innovators on Growshapes’ social media channels to get the latest expert news on innovation in 3D digitization, then share your thoughts and join the conversation about 3D digital innovation with #digitize3D.
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