LEGO NXT 3D Scanner

NXT-based 3D scanner, programmed with pbLua (http://www.hempeldesigngroup.com/lego/pbLua/)
Scans assembled and processed with Meshlab (http://meshlab.sourceforge.net/), a tool developed with the support of the Epoch NOE

Read full write-up here: http://philohome.com/scan3d/scan3d.htm

This thing kept me busy for a while...
- Build a NXT based 3D scanner with a needle probe
- program it using pbLua, debug it.
- Scan top/back/front/side (each scan lasts several hours)
- Learn the use of Meshlab, assemble the scans
- Rebuild eyes and bottom tube.

Final result here: http://www.ldraw.org/cgi-bin/ptdetail.cgi?f=parts/33320.dat

Category:

Science & Technology

Tags:

• LEGO
• NXT
• 3D
• Scanner
• LDraw
• MeshLab
• pbLua

[ghostalin]

How sensitive is the distance output? to the millimeter?

[PhiloYT]

@ghostalin

Much better, resolution is about 0.005mm! Of course precision is lower because of mechanical flexibility, something around 0.1mm

[ghostalin]

@PhiloYT

Damn!

Using only the NXT packaged distance sensor?

I'm considering buying some lego mindstorms, would you say that its worth it?

Where should I start?

[PhiloYT]

@ghostalin

No, the distance sensor resolution is indeed 1cm. You may find many more details on this project here on the write-up page listed in video details.

Definitely yes, it's worth it ;o) You may contact me by email using the address listed at bottom of my "philohome" webpage.

[PhiloYT]

It takes several hours to scan each side (but the scanner works on itself!). Reconstructing the shape (alignment, filtering...) takes about one hour, less when you get used to Meshlab.

[wivobebu]

i cant see anything!?

can anyone explain it to me?

[bloggyboy91]

whta i did't get it..wat is this scanner actually doing ?

[kakashibrimah]

FOR A 26lb LEGO LOT with Mindstorms nxt parts and more GO TO EBAY AND search "26lb LEGO LOTwith Mindstorms nxt parts and more" sold by umarbrim!!! great deal!!

[TheDilbertTV]

@ghostalin it all depends on how you know your maths and logic. nxt is all logic based

[legoguys111]

how hard was it to make this thing

[jakobkuen]

cool thing LoL

[donatp93]

And it actually works, :O , I wanna make one ;P

[CenaBabe111898]

this video is so booooooriinnng