Roll mold manufacturing method, roll mold, and transcript

A roll mold manufacturing method using a roll mold manufacturing apparatus, the roll mold manufacturing apparatus comprising a rotary device configured to rotate, along a circumferential direction, a roll base material having either a tubular shape or a circular-column shape, and a machining stage configured to be movable along a roll length direction and a roll radial direction,

• wherein the machining stage comprises a switching stage placed thereon, the switching stage comprising multiple cutting blades and being capable of changing positions of the multiple cutting blades relative to the roll base material,
• the roll mold manufacturing method comprising:
• a P cutting step of cutting a roll base material surface with a P cutting blade on the machining stage while moving the machining stage in a direction of an orientation P along the roll length direction;
• subsequently a step of switching from the P cutting blade to an N cutting blade on the machining stage;
• and
• subsequently an N cutting step of cutting the roll base material surface with the N cutting blade on the machining stage while moving the machining stage in a direction of another orientation N along the roll length direction.