Tsarin etching karfe na photochemical yana farawa tare da ƙirƙirar ƙira ta amfani da CAD ko Adobe Illustrator.Kodayake zane shine mataki na farko a cikin tsari, ba shine ƙarshen lissafin kwamfuta ba.Da zarar an gama ƙaddamarwa, an ƙayyade kauri na ƙarfe da kuma adadin adadin da za su dace a kan takarda, wani abu mai mahimmanci don rage farashin samarwa.