120
Brown & Sharpe Mfg. Co.
Milling T Slot in a Table
Milling a T slot consists, as we have already explained in Chapter VI, of two separate operations. A straight slot is first milled to the full depth with a plain milling cutter, which is 12'' wide in this case. The work is then turned on edge and clamped to knees so that it is square with the spindle. It is leveled by means of a surface gauge or height gauge, measuring from the straight slot to the top of the table.
A standard 12'' T slot cutter is used, and the table is fed longitudinally in the path of the straight slot.
This job can be done to good advantage on a vertical spindle machine, or with a vertical spindle attachment, using a two-lipped end mill and T slot cutter.
