Source : revolution3dprinters.zendesk.com
Smooth X Axis with Leadscrew : https://www.thingiverse.com/thing:1103976
X end stop : https://www.thingiverse.com/thing:1037870
Z axis top/bottom (prusa) : https://grabcad.com/library/prusa-i3-z-axis-bottom-top-1
Z endstop : https://www.thingiverse.com/thing:542892