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Subject: 
NXT based 3D scanner
Newsgroups: 
lugnet.announce, lugnet.cad, lugnet.robotics
Followup-To: 
lugnet.cad, lugnet.robotics
Date: 
Sat, 14 Mar 2009 17:28:05 GMT
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As a LDraw parts author, I am always interested to find new ways to model LEGO parts. Many parts have a clear geometric structure and are relatively easy to create, but parts like minifig animals or wigs have no defined geometric shape and are very difficult to model. I toyed for a while with the idea of a 3D scanner... The solution came with 2008 LEGO Technic sets that include a new part, the linear actuator. Coupled with the high resolution of NXT encoder, I had all the elements to build a 3D scanner, precise enough for my purpose.

You’ll find here photos, videos, LDraw files and a little tutorial on the way to turn the scans into shapes suitable for LDraw parts creation.

Enjoy!

Philo



Message has 7 Replies:
  Re: NXT based 3D scanner
 
(...) WOWWWW !!! Category "best NXT-robots"! Congrates!!! (16 years ago, 14-Mar-09, to lugnet.cad, lugnet.robotics, FTX)
  Re: NXT based 3D scanner
 
(...) Fantastic work Philo! I'm so envious. I work daily with 3D coordinate measuring machines (CMM) of all kinds ((URL) and my secret dream for many years has been to build one with LEGO. I've never managed to construct a reliable probe, though - (...) (16 years ago, 14-Mar-09, to lugnet.cad, lugnet.robotics)
  Re: NXT based 3D scanner
 
(...) That is a remarkable creation. It seems very useful. Great work. Jim (16 years ago, 15-Mar-09, to lugnet.cad, lugnet.robotics, FTX)
  Re: NXT based 3D scanner
 
(...) That's just outright awesome.. I don't know what else to write in this post! Word-awaytaking work. (16 years ago, 15-Mar-09, to lugnet.cad, lugnet.robotics, FTX)
  Re: NXT based 3D scanner
 
It's very impressive that you pulled off a reasonably-precise 3D scanner using LEGO. Don't worry about its speed: all touch/contact scanners are slow. :) (16 years ago, 16-Mar-09, to lugnet.cad, lugnet.robotics)
  Re: NXT based 3D scanner
 
Stunning! Don't know what else to say. Please do the owl next (URL) would be so nice. Jaco (16 years ago, 17-Mar-09, to lugnet.cad, lugnet.robotics, FTX)
  Re: NXT based 3D scanner
 
Philo! What a great tool to help your parts authoring. Not only is this creation fantastic, rare and unique, but some of your technical descriptions leave me reaching for my coffee and asprin! Amazing! I love the part of the video where you pan over (...) (16 years ago, 22-Mar-09, to lugnet.cad, lugnet.robotics)

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