Linear Bearing Alignment Tool

To easily align A MGN12 bearing rail on the Y axis of my Tarantula I made 3 of the simple alignment tools and clamped them to the Y axis rail then pressed the bearing rail against them while tightening the screws down to fix the rail. This saves a lot of time trying to measure the distance between the side of the rail and the V slot extrusion.
Although I have only used it for my Y axis alignment it can also be used for aligning linear bearing rails on the X and Z axis if required.