I roto i te whanaketanga o te pūnaha taiaho, ka whakamahia te whakawhanui hihi hei whakatikatika i ngā momo huānga. Ka whakarerekētia te whānui o te hihi taiaho i te putanga o te pūnaha taiaho ki te whānui e hiahiatia ana i te tomokanga o te karu arotahi. Ka whakamahia hoki te whakawhanui hihi i roto i ngā tukanga rauemi taiaho.
Kua hangaia hoki ngā whakawhanui hihi pumau mō ngā tono whakawhanui hihi motuhake pēnei i te whakairo laser. Kei roto hoki i ēnei he paninga ārai-whakaata me te kaha whakawhiti teitei hei whakanui ake i te whai huatanga o te whakawhanui hihi me te whakaiti i ngā ngaronga. Ko te ngoikoretanga kei roto i te tauwehe whakanui pumau, ā, kāore e taea e ngā tono e hiahia ana kia whakatikatikahia te rahi o te hihi putanga te mahi.
E 20 tau te roangaru e arotahi ana ki te whakarato i ngā hua whatu tino tika.