Z Stock Allowance

 

 

Placing a value in Z Stock Allowance will change the Total Cut Depth by the number entered.  You can use this if you want to leave a small amount of material on the bottom of a part, or if you intentionally want to overcut a part to be sure it is cut all the way through.

 

Entering a positive number will move the tool path UP in Z, leaving more material for a finish pass.

Entering a negative number will move the tool path DOWN in Z, past the normal Total Cut Depth.