Mold production method and mold production device

A mold production method using a mold production device comprising a cutting blade capable of reciprocating in a direction perpendicular to a mold base material and capable of moving relatively in at least one direction along a cutting surface of the mold base material, the mold production method comprising:

• generating a gradation signal corresponding to each cutting hole in a plurality of cutting holes configuring a drawing target on the mold base material, the gradation signal indicating an arrangement and a depth of the cutting hole;
• generating, based on gradation signals corresponding to the cutting holes, a control waveform indicating a movement pattern of the cutting blade to cause the cutting blade to reciprocate at cutting points of the cutting holes;
• and
• moving the cutting blade according to the control waveform to cut the mold base material, wherein
• each cutting hole in a plurality of cutting holes aligned in the one direction is arranged to partially overlap with one or more other cutting holes,
• a control waveform is generated for each group in a plurality of groups of cutting holes that do not overlap each other among the plurality of cutting holes aligned in the one direction, based on gradation signals corresponding to the cutting holes constituting each group, and
• the cutting blade is moved according to each control waveform in a plurality of control waveforms generated for the groups to cut the mold base material to a predetermined depth.