The Turner's Cube we are going to make is an interesting little project that originally came from beginners learning to work in the metal shop. The seasoned old veteran or shop owner would hand one of these to a new apprentice and tell him to figure out how to make it and reproduce it.
For me it was a fantastic first project on the Tormach CNC Mill at the TechShop: http://www.TechShop.ws
In this instructable you will learn how to make a Turner's Cube and in the process practice your skills and precision needed to tackle much more difficult projects and open the doors of all the incredible things you can make using a metal mill.
Metal Bandsaw (horizontal and/or vertical)
Square or Center Finder (ruler works fine too)
CNC Mill (Such as the Tormach 1100 at the TechShop)
1/2" End Mill bit
2"x2" cube of aluminum
For my tutorial on designing the cube in AutoDesk Inventor 2012 go here: http://www.instructables.com/id/Turners-Cube-Designing-in-AutoDesk-Inventor-Pro/