Te whakauru i te whanaketanga, te hanga me te hoko, hei wheketere miraka tuatahi-reanga.
Ko te Mīhini Whakakī Kāri-rua PU Poutū 1:1 Maxwell he otinga tino tika, he aunoa katoa i hangaia mō ngā piripiri polyurethane (PU) e rua ngā wāhanga. I hangaia mō ngā ipu kāri-rua pakari, ka whakangawarihia e tēnei pūnaha te tukanga whakaputa katoa—mai i te uta kāri ki te putanga hua kua oti—me te iti o te wawaotanga ā-ringa.
Ka whakauruhia e te mīhini te hangarau matatau e whakahaerehia ana e te servo hei whakarite i te tika me te auau o te whakakī. Kei roto i tana pūnaha whakahaere atamai he atanga mata pa e ngāwari ana ki te whakamahi mō te whakatikatika i te rōrahi mamati, ā, ko ngā tikanga hiri maha-apa ārai-maturuturu me te ārai-tātari (e whakamahi ana i ngā rauemi Teflon mahi teitei) ka whakamana i te mahi ma, kore paru ahakoa ngā rerekētanga o te matotoru o te piri. Me te hoahoa hiko pakari me te tere whakaputa o te 15 ki te 25 kātene ia meneti, ka tukuna e tēnei mīhini te huinga tino pai o te whai hua, te pono, me te ngāwari mō ngā raina tākai piri hou.