Nā ngā huarahi e whakahaere ana i te mōhiohio tūpato, ka hanga i te mahi tohu pūkana tūturu a te kimihanga o te kōparapara. E noho ana te whiu me te kawe iho nei i runga i te whakatupu hirahira o te kōparapara, ā, ka whakamahia he rautaki pūkana hei whakarite i te kōparapara ki ngā rauemi whakarite hirahira. I roto i te whenua pūngao, ka whakamahia ngā kōparapara hei whakarite i te paritai me te pakipaki hoki i waenganui i ētahi atu papa ngenenge. Ko te take i te pai ake o te mahi whakarite, nā te mea ka noho pūkana ake tonu te kōparapara i runga i te mahi whakarite, ko tēnā te take i te itinga o te huringa ake i ngā rautaki. No reira, ka pai ake ngā momo hou hoki hei whakarite, pērā i te whiu wai e tautoko ana i te kōparapara, nā te mea ka whakawehi, ka whakapai i te wāhi i tū mai ai te whakarite, ā, ka puta ki waho i te wehe haere o ngā rauemi.