Dhaqdhaqaaqa dhidibka ZR waa nooca wadista tooska ah, halkaas oo matoorka godan uu si toos ah u wado qulqulka kubbadda iyo spline lowska, taasoo keentay qaab muuqaal ah. Matoorka dhidibka Z-axis waxa loo wadaa in uu u rogo looska furka kubbadda si uu u gaadho dhaq-dhaqaaq toosan, halkaas oo lawska spline uu u dhaqmo sidii joogsi iyo hagid qaab dhismeedka usha furka.