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Blender 3D Printing Essentials by Gordon C. Fisher

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How a 3D printer works

A 3D printer needs to take a description of a three-dimensional object and turn it into a physical object. Like Blender, a 3D printer uses values along the X, Y, and Z axes to determine the shape of an object. But where Blender sees an object as perhaps cylinders, spheres, cubes, or edges and faces, a 3D printer is all about layers and perimeters.

First, a slicing program opens the object file that you made and it slices the object into vertical layers as seen in the following screenshot:

How a 3D printer works

Then, each layer is printed out one by one in a growing stack as seen in the following screenshot:

But you can get a better idea of how these ...

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