Indexable plenum

A method, for using a plenum to collect debris during the cutting of an object, the plenum comprising a hollow body having a top end having a top opening and a bottom end having a bottom opening, a conduit situated between the top end and the bottom end, bifurcated from and in fluid communication with the hollow body, and a base plate having a machine side, a plenum side, and a base-plate opening, with the plenum side releasably engageable to the top opening, the method comprising:

• sealingly attaching the machine side of the base plate onto a stationary portion of a machine spindle nose of a machine;
• engaging a cutter to the machine spindle nose wherein the cutter has a base portion and a cutter portion;
• engaging the hollow body with the base plate to form an indexable plenum cutter assembly the base portion of the cutter is situated inside the hollow body, at least a portion of the cutter portion is situated outside the hollow body, and there are a body clearing between the hollow body and the cutter and a bottom clearing between the cutter and the bottom opening of the hollow body, and during operation of the machine spindle nose, the plenum does not form contact with the cutter and remains stationary;
• cutting the object with the cutter while applying vacuum to the plenum through the conduit, wherein dust or debris generated during the cutting process enters the hollow body through the bottom clearing into the body clearing and into the conduit where it is vacuum removed;
• detaching the hollow body from the base plate with the base plate remaining attached to the stationary portion of the machine spindle nose;
• and
• replacing the cutter with another cutter.