3 D Scanning And Reverse Engineering March 2009Presentation Transcript
Non Contact Surface Inspection & reverse engineering By Applications 3D (248) 853 7700 www.applications3d.com Email: [email_address]
Applications 3d is a high tech company based in the Metro Detroit area. Our main focus is in the following areas:
Non contact white light 3D scanning
Part to CAD comparison
CAD / Native data conversion.
Our team of highly skilled and educated professionals have been involved in the Reverse Engineering processes since 1997. We have gone through a variety of hardware and software and now just use the best ones to do the job..
3D non contact scanning is exactly what it sounds like. It is basically taking pictures of an object by a highly specialized and calibrated digitizing machine. The output is a dense point cloud containing millions of points. Each point has its own xyz coordinates similar to points generated by a CMM machine. The difference is that at no point of time does the digitizing machine or any part of it touch the object. Due to this advantage , soft parts or parts which do not have any fixtures for them can be easily measured.
White light digitizing is done by the principle of triangulation. The camera has inbuilt CCD sensors and a projector which throws white light onto the object. Since the distance between the CCD sensors and the projector is known, the xyz coordinates of about 4 Million points are calculated in each shot using triangulation algorithms. Since each “shot” or measurement is independent of each other and covers a small area at a time, different shots taken at different angles from the object are “stitched” together by using “photogrammetry”.
Photogrammetry is the same process which is used by satellites to accurately measure the surface of the earth . It involves attaching retro reflective targets and highly calibrated scale bars on the object and taking pictures with a enhanced digital SLR camera. The output is an xyz list of points which represents the target centers. Using those target centers , all the digitized “shots” are stitched together to form one global point cloud.
Photogrammetry itself is a flexible measurement tool . Big and awkward objects can be measured using this method .
Our newest scanning hardware, the Steinbichler Comet V- 4M, with mulitiple measuring volumes, high resolution, and automated scanning, the Comet-V has taken the scanning / digitizing process to a new level.
The applications of this technology are limited by imagination only. Some of the key applications where it is being used is:
Tooling Industry( Dies and Molds)
Automotive and aerospace
Injection molded and stamped parts
Medical and dental
Animation, entertainment and virtual reality
We are servicing mainly the tooling and the automotive industries.
In the past we have helped our customers in the following areas:
Surface modeling/ Solid modeling
Exterior / Interior Painted Parts
Paint/ Lamination deformation on Injection molded parts
First article Inspection/Quality Control
Checking for warpage or deviation in molded or stamped parts
Updating CAD models
Viewing problem areas with help of color plots
Measurement of stamping dies and molds
Transforming clay models into digital models
Developing after market products
Troubleshooting difficult and hard to measure areas
Digital assembly / Mockup
Samples of Past Projects Dimensional Inspection reports- Comparison done with existing CAD data- Flexible , customizable and powerful reporting- FAST !
Samples of Past Projects Surface texture anamolies – Reflectance plot on 3D Scandata of injection molded part
Reverse Engineering of a Automobile Gas Tank. Reverse engineering of a Golf Club. Reverse engineering of an Automobile seat back from Clay model. End result: Design of an Injection molded part. Native data to Catia V5 conversion. End result sketch based parametric models.
This pattern was handmade, referencing from a drawing of a Texas themed plastic chair that one of our customers wanted mass produced. The clay pattern was digitized using our scanning technology and the scan data was subsequently converted into a solid model, which was then used to machine the mold.
Ford Mustang- Emblem Reverse engineered Hood ornament
Contacts Applications 3D www.applications3d.com Email:email@example.com President: Raminder Bhatia Business Dev. Mgr : Michael Peash ( [email_address] ) Applications 3D LLC, 2235 Star Court , Rochester Hills, MI, 48309 (248 ) 853 7700