
Printing in different materials even allows for different colours to be printed on a model
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Here 3d scanning has been utilised in a novel way to produce a quirky iPad stand.
- scan in image*
- using Autodesk Meshmixer to clean and tidy up the scan, scale image to sit on the dimensioned printing bed
- use edit and sculpt functions to smooth out blemishes on the scan (e.g. smoothing out hair on a bust)
- Add a base for the print by selecting from primitive shapes
- autorepair under the analysis inspector section, to fill in any holes on the scan
- combine all shapes, and save as an .stl file to be imported into Cura for printing
*scanning the image is the hard part! Very easy for the scanner to “lose track” of the object
For this exercise, I wanted to create something functional from my 3D-scanning. Scanning a bust is a very common use of basic 3d scanning, so I wanted to experiment with a more challenging scan.
My aim was to scan a outstretched hand and arm, with the goal of turning it into a unique and customised coat-hook or key-holder, like these:

I want to create something like this, using 3D scanning
Since busts are a common use for 3D scanning, the software we were using had algorithms written in to be able to pick out the head shape for a scan, and has optimisations in place to pick up the head scan as smoothly as possible.

Building up a scan image by rotating head and shoulders on a spinning chair
A particular challenge was getting the scan software to recognise the hand as the item to scan, and not everything else in the background.
Once the scan started picking up the hand as my object, the difficulty was in rotating the scan-camera round the hand to get a full 3D image. It works well for a bust because when sitting on a chair, the rotation has the head at the centre of the axis. I found it very difficult to have the centre of the scan object at the centre of rotation. Its hard to rotate an arm about the same spot!
There were many failed scans that looked similar to this:
Many scans later there was a better one that was incomplete, but had enough framework in place that I could then build up the missing parts of the hand using Meshmixer.
After some editing and little fixes (recreated and extended some fingers!), I managed to create this:

It worked! 3d printed hand scan
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Awesome make Lois! Really interesting use for the arm scan, I love it! Also, great organization on this; really easy to read and follow along. Thanks for the great post!