About this 3D model

I found an open source design for a Hall effect switch mount on CNCzone.com at http://www.cnczone.com/forums/open_source_cnc_machine_designs/101878-electronic_home_switches_made_easy-4.html A friend of mine is in the process of tuning his CNC router, and wants to use Hall effect switches. I modeled the CNCzone design in Alibre, and printed it.