Milling machine

Abstract

The improved milling machine makes use of individually controlled x-axis, y-axis, and z-axis carriages. These carriages provide positive and precise control of the position of the cutting tools and the blank to be cut. A tool changer allows the tools to be changed to accommodate other materials. A camera is used to detect wear on the tools.

1 - 12 . (canceled)  
   
   
       13 . A method of milling a blank using an improved milling machine comprising the steps of: 
 (a) inserting a blank into the milling machine;    (b) selecting a contour for the blank;    (c) milling the blank to match the contour using three tools that are manipulated on an x-carriage, a y-carriage, and a z-carriage.    
   
   
       14 . The method of  claim 13  wherein the step of inserting the blank comprises fixing the blank by means of a mandrel into a mandrel socket.  
   
   
       15 . The method of  claim 13  wherein the step of selecting a contour for the blank comprises the steps of receiving data from an intra-oral digitizer.  
   
   
       16 . The method of  claim 13  wherein the step of milling the blank comprises selecting a first and second tool for milling.  
   
   
       17 . The method of  claim 16  wherein the step of milling the blank further comprises inserting the first and second tool into a first and second spindle coupled to the x-axis carriage.  
   
   
       18 . The method of  claim 17  further comprises advancing spindles along the the x-axis into contact with the blank.  
   
   
       19 . The method of  claim 17  further comprises positioning the blank using the y-axis and z-axis carriages.