Y axis endstop extension for 3dprinterczar prusa i3

after putting together my prusa (still not finished but getting there) i found that there was no place to put my y axis endstop to allow for full usage of print area. So i designed an extension which attaches to the back of chassis which will allow the heatbed to slide back fully without stopping it before the 0 point on y was reached. When I get printing with the diminished print area I'm going to print this first so I can get the full print area on the go