Y-Endstop có soft stop và hard stop

You can see from the datasheet for the Omron D2HW A201 switch that there is only 0.9 to 1.1mm more travel available before it bottoms out after it actuates.  Many endstop mounts do not provide a hard stop and rely completely on the electrical switch to stop the movement.  If this fails or if you move the gantry by hand and hit the switch beyond its limit of travel, it will likely destroy the switch. This mount provides a hard stop calibrated to be between the actuation point and the limit on total movement of the switch.