Endstop An endstop is a sensor or switch used in 3D printers to detect the physical limits of an axis, ensuring that the printer’s movement remains within its designed range. Endstops can be mechanical, optical, or magnetic, and are typically installed at the minimum or maximum positions of the X, Y, and Z axes. When triggered, the endstop signals the printer’s controller to stop movement, preventing damage to the machine or misaligned prints. Endstops also play a vital role during the printer’s homing process, where the print head moves to a known reference position before starting a print. Proper calibration and maintenance of endstops are essential for reliable and accurate printing. |