A cikin injina na CNC na filastik (Digital Computer Control), ana kera ɓangaren ta hanyar yin injina a cikin tarin tubalan filastik ta injinan niƙa na dijital.Wannan fasahar samfuri mai sauri ta dace da samar da na'ura a cikin mahallin gwajin aiki.
CNC machining na roba prototype sassa ne da ake kira "subtractive" hanya domin akwai kau da abu.Zaɓin zaɓi mai yawa na resins yana ba da damar samun sassa a cikin "kayan da ya dace", don haka yana ba da izinin kayan aikin injiniya kusa da sashin da aka yi da allura (ABS, PC, PP, PVC, POM, PMMA, PA 6/66).