DIY a high resolution desktop 3D scanner
DIY a high resolution desktop 3D scanner by 50 USD? The big man Whitney Pot on Instructables did it. He just used a Nikon DSLR and a stepper motor of Arduino drive.In order to capture high resolution scan result,Potter’system used photogrammetry technology–which was creating 3D picture by some of a group overlap 2D photos.To this impressive result,maybe you will believe by having a look by yourself.
Of course, the premise of “50 USD 3D scanner” is you have to have a SLR first. Since this kind of 3D scanner must have a high
quality digital camera. And this SLR could not be included in the 50USD budget.Once this small condition is ok, the other steps will not cost much. Potter’s idea is simple: if it can come into being different colors by operating your high quality digital camera correctly, why should we still buy a dedicated 3D scanner? It may meet the problem during photogrammetry of the quality and spacing of photos.Every photo must focus perfectly and exposure.And it must take photo around the object to capture every detail. Also it must have enough overlap,and then the drawing software can know the position of each lens.You should keep correct spacing when scanning some big objects.But the true difficulty is to scan small object.This is the reason that Potter brought in the stepper motor of Arduino drive.
This kind of DIY 3D scanner mainly used a stepper motor controlled by Arduino circuit board to rotate the scanning object,then using LED to touch off the camera’s wireless sensor,and start the shutter.You should repeat this process until all the photos of different angles are collected,then use a photogrammetry software to build accurate and high resolution 3D picture of this object. Overall,this DIY 3D scanner just need 5 key parts:Arduino,stepper motor drive,stepper motor,infrared LED and LCD expansion board.
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