By Brian Krassenstein | 3D Print
It’s really amazing how quickly the tools behind 3D design and image capturing are progressing. One of the impediments to widespread adoption of 3D printing, is the lack of easy to use, easy to learn software and applications. Although one can download thousands of free 3D models online to print out, the real utility of a 3D printer is its ability to fabricate an object from one’s mind, rather than a database of already designed creations. Also intriguing, is the idea of simply taking a photograph of an object with one’s smartphone, and within hours having a copy of that particular item. Although there are applications and computer programs on the market which are making such ideas possible, many are catered towards those with extensive CAD and design experience.
What one project, called eXtrudy is trying to do, is make the process of turning a 2D image into a 3D printable model as simple and easy as possible, and for free.
“eXtrudy is a private and non-commercial project which I’ve started several years ago,” explained Founder Hendrik Wiebel to 3DPrint.com. “When 3d printing services like Shapeways started to get popular, I was really exited about the new possibilities. My first printed 3d object was a little pendant with the paw imprint of our dog and his name on the backside. Shortly after that I’ve created a key chain with an qr code on it. That sounds quite easy, but it took me several hours to do it with freely available software like Gimp, Inkscape, Blender and Meshlab. I thought there must be an easier way to make simple jewelry, medals, key rings, or amulets, because the workflow is always the same. You define the basic shape of an object (heart, cross, star), choose a surface profile (flat, curved, …) and add decoration elements like text, qr codes, engravings. And since I didn’t want to draw everything with a CAD program, I’ve decided to do it based on arbitrary images like photos or drawings, so you could easily turn a child’s drawing into a piece of jewelry or a photo of your footsteps in the sand.”
This is how eXtrudy originated, shortly before being released for Windows-enabled devices approximately a year ago. Wiebel has been busy porting the Windows version over to Android, finally finishing and releasing it on the Play Store just yesterday.
The application is quite easy to use. Once the back and the front of an object has been defined from either photographs or drawings, the application will convert those images into a watertight mesh. At this point, other features may be added prior to exporting the new model as an STL file, ready for 3D printing.
“Basically, it’s a similar principle as the web based 2d to 3d creators from Shapeways or i.materialise,” explained Wiebel. “But their functionality is too limited to create the objects I wanted. I’m too lazy to learn a powerful software package like Blender, so eXtrudy is a good solution for me.”
Wiebel has made over a dozen tutorials for the application available on Youtube, allowing even the most amateur 3D designers like myself, to create 3D printable objects in a snap. Currently the application will only work on ARM based Android tablets, and there are a few features he’d like to improve. Wiebel plans on making eXtrudy work on as many Android devices as possible, before possibly porting it over to iOS. Below you will find one of the latest tutorials for the new applications.
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