The Lizard
Back when we had a familybusiness importing elevator spareparts, I went to barcelona to a elevator expo. While there one of our suppliers took us to their factory for a tour, and part of the tour was a gift bag, with the lizard in it.
Closer to 100 pictures later I did get the lizard scanned in. Initially I took around 30 unique pictures, and used Autodesk's ReMake software to analyze it into a 3D model.
The result was rather embedded. So I took a good deal of more pictures, I used the tabletop of my CNC project, and marked on it the location when ever I took a picture, and moved along around the lizard in a circle, taking pictures around an inch apart. Then thinking it was a good idea mixed both sets of pictures, and the load crashed the program, so I had to send it to the Autodesk servers to be processed.
The result was rather freaky.
So for the 3rd time I ran just the fresh set of pictures, and while to job took all night my own computer was powerful enough to manage the load, and it was beautiful. In total the fresh set of pictures had 54 unique pictures, meaning each of the pictures ended up being around 6 degrees apart of the next one of the full 360 degree circle.
So now I had to separate it from the surface, so elevated the bottom up some, with the slice tool.
Now while there is still some garbage in the image, the lizard is clear of it enough that it can be isolated neatly by selecting the junk and just deleting it.
Now we have a nice neat model left behind that then needs to be fixed, as the camera doesnt see all the places of the model.
The diagnostics tool of the software was more than adequate to fix all the holes of the model. Now the model was fit to be exported, after a few tries I found that exporting it as an OBJ file was the easiest way to get a functional model out. While the OBJ files can include the surface wrapping for the model, so that one could see it in full colour, I did not include those. This gave me a file the repetier host software could open, meaning it would just be matter of slicing and printing to reproduce the lizard. Then again, there were some imperfections in the scanned lizard. The scanned lizard looks like its mouth has split.
Scanned lizard
Original lizard
When we look at the camera locations for the scanned lizard we can see why the mouth has a split in it. There is just a little too big of a cap between pictures, that the mouth of the lizard doesnt get covered properly.
The paperwork
- Assesment
- Have you Described what you learned by testing the 3D printers?
- Have you, Shown how you designed and made your object and explained why it could not be made subtractively?
Have you, Scanned an object? - Have you, Outlined problems and how you fixed them?
- Have you, Included your design files and ‘hero shot’ photos of the scan and the final object?
- Lecture Details
- Lecture Video
- Review Video
- The Files
Sub-pages
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The Groupworkthe purpose this week was to check the capacities of the 3d printers at the lab.
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The Scanning
I scanned in a lizard figurine I got years ago, while on a trip to Barcelona.
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The PartI made a part with a screw in it, to push material through the holes at the bottom.