 A little CGI for you guys, 914 3d scan and yet another 3D model |
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| Optimusglen |
 Jul 9 2020, 10:11 AM
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#1
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Senior Member  Group: Members Posts: 905 Joined: 26-February 16 From: Minneapolis Member No.: 19,709 Region Association: Upper MidWest 
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I thought you guys might like this. I've created probably 5 or 6 different 914 3D models in my time, each with increased accuracy, but all had an element of "eye-balling" it.
Through a project I'm on I was able to get 3D scan data from a car and have been modeling up the most accurate model I've done to date. It's a long road ahead, but the body will be right on once it's finished. For the uninitiated, a 3D scan creates a point cloud which can pretty easily be converted to a polygon model (millions of little flat polygons) To create a true CAD (nurbs) model you essentially model over the poly model, picking up key points as you move along to ensure the new geometry is as close as possible to the scanned geometry. Think of it like tracing over a photo with tracing paper. The new CAD geometry is what they call class-A surfaces, it takes quite a bit of work to get the new surfaces to match the scan but also be smooth (scan data has a lot of noise) Oak green-ish color is the new geometry, matte blue is the scan. (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-19709-1594311103.1.jpg) (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-19709-1594311104.2.jpg) (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-19709-1594311104.3.jpg) (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-19709-1594311105.4.jpg) The new model will be used to design and mock up some new modification options, stay tuned! |
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| BPic |
Jul 9 2020, 10:18 AM
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#2
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Member Group: Members Posts: 341 Joined: 5-February 18 From: Miami, Florida Member No.: 21,864 Region Association: South East States
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Very Cool!!! (IMG:style_emoticons/default/boldblue.gif)
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| MM1 |
Jul 9 2020, 12:46 PM
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#3
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914 obsession continues Group: Members Posts: 608 Joined: 9-May 18 From: Thousand Oaks, CA Member No.: 22,105 Region Association: Southern California
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Nice! I used to scan/clay model for an OEM before I became a Digital Sculptor/Modeler . . .would love to have a copy so I could mock up drivetrain options in VR (Gravity Sketch)!
Years ago I had a scan of a real 550 Spyder . . .if I could just find it, I could trade ya! It's quite exciting that you are working towards a nurbs model from scan - it would be great if our community had access to something close to a complete production dataset . . .I wonder if Porsche has even devoted the (hu)man-hours to create one? |
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| Superhawk996 |
Jul 9 2020, 01:22 PM
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#4
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914 Guru Group: Members Posts: 5,774 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch
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Nice Job. (IMG:style_emoticons/default/piratenanner.gif)
Your next assignment is to by a Schuler transfer press (larger than my house (IMG:style_emoticons/default/av-943.gif) ) and tool up the dies to make a complete 914 reproduction. (IMG:style_emoticons/default/beerchug.gif) |
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| SKL1 |
Jul 9 2020, 02:04 PM
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#5
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Senior Member Group: Members Posts: 1,597 Joined: 19-February 11 From: north Scottsdale Member No.: 12,732 Region Association: Upper MidWest
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I have NO idea what you're talking about but the images do look pretty neat... (IMG:style_emoticons/default/smile.gif)
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| Carbon-14 |
Jul 9 2020, 08:39 PM
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#6
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Senior Member Group: Members Posts: 765 Joined: 7-May 20 From: Toronto, Ontario, Canada Member No.: 24,238 Region Association: Canada |
 3.8L  Multiple intersection data. Photogrammetry, a new approach to processing data, 3D data from photos, multiple photos. https://www.geodetic.com/basics-of-photogrammetry/ https://www.3dnatives.com/en/photogrammetry...ware-190920194/ https://all3dp.com/1/best-photogrammetry-software/ https://www.hemmings.com/classifieds/cars-f...14/2413027.html https://bringatrailer.com/listing/custom-po...-race-car-3-8l/ https://sketchfab.com/3d-models/porsche-911...b7d63701bea4626__Left click drag model for 3D simulation. https://www.hemmings.com/stories/2020/07/08...ooked-like-this https://www.ebay.com/itm/1970-Porsche-914-6...bIAAOSwpnRe-jpQ Using an array of photos, and the software above, it is now possible to build a 3D model of data to be processed by cnc tools or 3D printers, useful for further refinement or modifications. A worthwhile and naturally, valuable data of the 914, the measurements, like in the days of old, 38-26-36. The shape of it. |
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