Looking for a deeper explanation on the pin-slot alnment

pin slotSlotted spring pins - also referred to as C pins and feature rolled strips of metal materials such as steel, stainless steel and aluminium that have a slot which lets the pin flex and expand whenFure 2. The pin on the left determines the X position of the workpiece. To overcome these issues, one of the pins can be assembled into a slot. Thus, the pin in the hole removes