Cetus3D Mk3 Y-Axis Endstop Trigger

This is a corrected y-axis endstop trigger for the mk3 with heated bed. While the original trigger can and will work for most printing. It has the ability to snag on the clips that are supplied with the heated bed. This new one not only avoids the clips it is also longer so it can properly activate the y-axis endstop without having the linear bearing impact on the stepper motor, which the replacement from cetus allows.

03JAN2020: Added chamfer for cosmetic reasons.