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Printing in Plastic: Build Your Own 3D Printer by James Floyd Kelly, Patrick Hood-Daniel

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C H A P T E R  13

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Motors and Movement

Your 3D printer is now ready for the motors that will control movement and allow the Plastic Extruder to “print” on the tabletop. There are three axes of movement: X, Y, and Z. The X-axis consists of the Table that will move forwards and backwards (front to back), the Y-axis will move the Extruder left and right, and the Z-axis will allow the Extruder to move up and down. Each of these axes has a dedicated stepper motor that will be added to the machine. (A fourth motor will be added later that is not involved in movement.)

There are two methods of movement that will be used; the Z-axis movement will use ...

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