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Homebrew Laser Cutter made by Zach Radding

Step 13X axis driveshaft detail

X axis driveshaft detail

The stepper motor is attached to a driveshaft with a flex coupling. There is a timing pulley at each end of the driveshaft. The two belts are attached to the two ends of the gantry. Pulling on both ends of the gantry prevents it from racking and means it doesn't have to be nearly as stiff or well-supported.

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Author:TimAnderson

Tim Anderson is the author of the "Heirloom Technology" column in Make Magazine. He is co-founder of www.zcorp.com, manufacturers of "3D Printer" output devices. His detailed drawings of traditional ...