
a motion W and the piece of aluminum that the next one will be milled from.
That is the case with the rims for the Bucky Bike. Right down to the motion Ws that are inset onto the spokes of both front and back rims. Aluminum is the material for many of the pieces in this project. A CNC machine does the cutting and a CAD program directs the CNC machine through 3D space to do the actual cutting. The designer works in the CAD program to design the actual piece. Part of this process is generating a series of "commands" that are sent to the CNC machine which executes the commands. A CNC machine is much like a drill with a very fancy table underneath it. The cutting bit looks like a drill bit. The drill chuck moves in three dimensions according to the command it is executing. A typical command would be the 3D coordinate of the starting point, the 3D coordinate of the finishing point, and the bit size.






