Why Linear Bearings Are Superior for 3D Printers Compared to Wheel-and-Rail Systems and Rod Bearings  When it comes to building or upgrading a 3D printer, the choice of motion system plays a critical role in determining print quality, reliability, and overall performance. Among the options available, linear bearings have emerged as a preferred choice over traditional wheel-and-rail systems and rod bearings. This article explores why linear bearings outperform these alternatives in the context of 3D printing, focusing on precision, maintenance, durability, and ease of use. Precision and Smoothness of Movement One of the primary reasons linear bearings excel in 3D printers is their ability...