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Old 08-08-2007, 09:40 AM
John Scheffel's Avatar
John Scheffel John Scheffel is offline
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Question Comparing 3D Models to 3D Scanner Data?

Some of our MEs are looking into using a laser scanning service for part inspection. The vendor they are working with provides them with an IGES file containing a sort of 3D point cloud representing the surface of the measured part. We are able to import this IGES file into Modeling as a Wireframe part. If we turn on 3D Vertices in the Show settings we can see the points, but have no easy way to compare the measured points to the original model.

I contacted CoCreate but they don't currently offer a solution. We don't know much about this topic so need to start doing some research. If anyone has experience with doing something like this, any tips or pointers would be appreciated.
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Old 08-08-2007, 03:21 PM
coroto coroto is offline
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Re: Comparing 3D Models to 3D Scanner Data?

Well, one option is to use SolidWorks! Their Premium level bundle includes Scan to 3D capability and support for NextEngine's low-cost scanner.

For a taste of what this process looks like, see these links.

http://www.solidworks.com/pages/products/solutions/documents/ScanTo3Dprimer-customer.pdf

http://www.solidworks.com/pages/products/solutions/documents/ScanTo3D-intro.pdf
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Old 08-09-2007, 06:22 AM
Gary L. Gary L. is offline
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Re: Comparing 3D Models to 3D Scanner Data?

You might want to take a look at Geomagic Qualify. We use a software called Surfacer that is no longer available but Geomagic would be a possible replacement for us in the future.

We CT scan investment castings and inspect them using this process.
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Old 08-10-2007, 05:00 PM
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Ron Keeley Ron Keeley is offline
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Re: Comparing 3D Models to 3D Scanner Data?

John,

Here's a few links you can check out. This is from an email I sent back in 2006 to one of our engineers that was looking for some reverse engineering tools for documenting gundrill tools. Not specifically what you were asking, but likely relevant:

http://home.att.net/~castleisland/scn_08.htm
Technology Comparison Chart

Here's some others I came across:

http://www.xyzrgb.com/html/scanning.html
XYZRGB -- High Resolution 3D Scanning Services. The quality, accuracy and precision of our data is superior because of a unique combination of enabling technologies. This includes an auto-synchronized 100 micron imaging system with ±0.001"(±0.025 mm) ± 3 sigma accuracy, combined with the 1 micron geometric stability of a 10 tonne Scirocco DEA coordinate measuring machine and an 8 micron optical vernier calibration.

http://www.shapegrabber.com/3d_digitizers.html
Shape Grabber - Laser Scanners.

http://www.mobilescan3d.com/ms3plugin.htm
3D Mobile Scanner

http://www.profilesmagazine.com/p31/aitoro.html
Reverse-Engineering Custom Fan Blads for American Blimp - used engineering design firm Advanced Design Concepts (ADC) to create molds from the parts, after reverse-engineering via Geomagic Studio, and the point-cloud was data was converted into a model.

RP&M Suite Now in Version 10
Magics X "thoroughly renovated" says company.

HighRES Partners with McNeel
Reverse engineering and inspection tools integrated with Rhino 3D.

3D Data at Work
Discover the practical power behind the latest software that makes sense of 3D digitized information.

Metris Releases New Version of Point Cloud Inspection Software
Focus Inspection 8.3 can handle larger point cloud sizes.

Point-Cloud Processing Software
Geomagic Studio 9 now available in 64-bit version.
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Old 08-16-2007, 09:18 AM
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John Scheffel John Scheffel is offline
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Re: Comparing 3D Models to 3D Scanner Data?

Thanks to everyone who replied. Lots of interesting links but many seem to be targeted to reverse engineering or creating a solid model from the point cloud. Geomagic Qualify seems to be the most promising. It is designed specficially for inspection and comparing the measured data to the 3D model and is not tied to a specific CAD application.

http://www.geomagic.com/en/products/qualify/

http://www.geomagic.com/en/products/qualify/demos/
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Old 08-20-2007, 02:17 PM
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Ron Keeley Ron Keeley is offline
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Re: Comparing 3D Models to 3D Scanner Data?

The latest Desktop Engineering magazine also includes an article about this at http://www.deskeng.com/ME2/Sites/dir...555C9CA2D3F0EA

It mentions PolyWorks V10, which is point-cloud inspection and reverse engineering software.

The need we were investigating was indeed for reverse-engineering/documentation at the time, but many of these tools cover both inspection and reverse-engineering. I see them as highly related.
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Old 08-21-2007, 09:44 AM
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John Scheffel John Scheffel is offline
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Re: Comparing 3D Models to 3D Scanner Data?

Quote:
Originally Posted by Ron Keeley View Post
The latest Desktop Engineering magazine also includes an article about this...
Good pointer. This article has some interesting comments about the current state of this field. I found these paragraphs most relevant to this thread.
Quote:
Jim Clark, Metris USA VP of Marketing and Business Development, says that his company’s own software line, formerly CadCompare and Paraform, is now split into Focus Inspection and Focus RE, with the majority of business going to inspection. He says that point-cloud inspection is growing in popularity, but that geometric dimensioning and tolerancing (GD&T) capabilities are still very important.

What he’s not seeing is the massive demand for RE that was predicted in the late ’90s, saying, “The [market] element that has breakout capacity is part-to-CAD inspection, [yet] a lot of people don’t understand what’s involved. It’s not about the scanning hardware, it’s about postprocessing, and what you can do with the points.”
Here is a link for the Metris Focus Inspection tool.
http://www.metris.com/products/3d_inspection/point_cloud_software/focus_inspection/
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Old 01-13-2017, 12:54 AM
WestReak WestReak is offline
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Re: Comparing 3D Models to 3D Scanner Data?

I understand, that it's an old topic. But it appears to be actual for me. I need to do reverse engineering for car engines using it's scanned models. If it makes sense I use Artec Spider 3d scanner with their software. I don't need to compare scanned data with cad model. I need to create a very accurate CAD model out of scanned data. So could anyone recommend which CAD soft is better for this purpose or maybe you know some good manuals?
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