Reprap Okazaki .375 version
thingiverse
Begin by researching Okazaki fragments, then progress to a Printrbot and ultimately a Prusa version 2. This printer primarily utilizes standard hardware components. It requires a 3/8-inch smooth rod for the z-axis, 5/16-inch threaded rod, 2-inch aluminum flat stock, and 3-inch aluminum channel for the x-carriage. Fasten with #8-32 screws measuring 1.25 inches in length. The design is compatible with economical bronze bearings (http://www.use-enco.com/CGI/INSRIT?PMAKA=404-2499&PMPXNO=30822520&PARTPG=INLMK33) and accommodates an additional, mirrored extruder. Feel free to modify the design as desired; it includes parametric openSCAD files for customization. Unique hardware requirements involve metric M3 bolts and nuts for motor attachments, small gears, and pulleys. #6-32 screws are needed for z-couplers and x-carriage tensioners. Assemble belt clamps with 3/8-inch long #8 bolts, and secure the top plate to your board or workbench using 3/8-inch bolts without overtightening to avoid aluminum deformation.
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