Method of creating no data for hole machining

A hole machining NC data creation method in which dialogue screens for creating NC data for hole machining are prepared in dependence upon a type of hole, a selected hole type to be machined is specified to thereby display the dialogue screen conforming to the selected hole type and NC data for hole machining is created by defining and entering hole shape dimensions and tools used in each machining process in accordance with the dialogue screen, said method comprising the steps of:

• (a) entering any hole shape pattern and a machining procedure thereof in dialogue fashion and storing the hole shape pattern and the machining procedure as one item of hole-type data in a hole-type registration mode, said entering of hole-type data including the steps of:
• (a1) inputting a hole-type name;
• (a2) inputting a number of steps in the hole shape pattern;
• (a3) inputting a response to an inquiry as to whether center drilling is to be carried out initially;
• and
• (a4) inputting a response to an inquiry with regard to a machining procedure for each step of the hole shape pattern;
• (b) displaying, in a case where the hole shape pattern entered in step (a) is designated as a selected hole type in creating NC data for hole machining, a dialogue screen conforming to the selected hole type using the hole-type data entered in step (a);
• and
• (c) creating NC data for hole machining using the hole shape dimensions entered in step (a).