Variation of the groove size depending on the laser power has been modeled in this proposed mathematical model. It is obtained by polymerization of Polyoxmethylene formaldehyde, a semi-crystalline polymer, and is among the hardest and strongest thermoplastics. Polyoxmethylene can be used in slip-friction pairs without lubrication. Polyoxymethylene materials are widely used for materials in tribological applications. They also show good friction properties.