The RGS/RGW linear-rail system includes a 180° folded-over motorized design. Components of the foldedover system include the stepper motor, belt and pulley, precision leadscrew, bearing supports, and ...
In the early days of 3D printers, most builds used smooth rods and bearings that rode on them. But these days, printers are shipping with either V-slot extrusions with Delrin wheels or linear rails.
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