Ko ngā Pokapū Māhina Tōtika (VMCs) e waru kīa ētahi momo, ko ia kia rerekē ai i ngā whakamahinga motuhake, e tuku ana i tētahi tauira mōhio o ngā pūkenga mai i te māhina 3-tauira takirua ki te māhina anuanu hoki. Ko te wehenga matua he mōhio ki te maha o ngā aronga o te nekeneke. Ko te VMC 3-tauira he kaimahi matua o te ahumahi, e whai ana i ngā nekeneke tuaroto X, Y, me Z, ā, he pai mō te māhina i ngā wāhanga tapatoru kei te wāhi e tū ake ai te taputapu ki runga. He tino kaha mō ngā mahi 2.5D, ngā pokapō, me ngā kōpae. Ko te VMC 4-tauira e whai ana i tētahi aronga porotaka, arā ko te A-tauira (e porowhāwhā ana i te tōpito X) i te B-tauira (e porowhāwhā ana i te tōpito Y), ka tū ake ki te tepu o te māhina. E āki ai tēnei i te wāhanga, e taea ai te māhina i ngā taha maha i tētahi tūmau ane, he mea nui mō ngā wāhanga pērā i ngā kama rāwhiti, i ngā wāhanga e whai āhuatanga ana ki tō rātou taipitopito. Ko te momo matatau ake ko te VMC 5-tauira, e whai ana i ngā aronga e rua porotaka (pērā ko A me C, i te B me C) e taea ai te nekeneke atu tahi ana me ngā aronga tuaroto e toru. E āki ai tēnei tohu i te taputapu kape kia pupuri i tētahi āhuatanga pai ki te mata o te wāhanga, e taea ai te māhina i ngā āhua anuanu, ngā āhua kōpae, me ngā rango hohonu i tētahi tūmau ane, nā reira ka whakapai ake tino pono, ka iti ake te wā mō te māhina. I tua atu i ngā aronga, ka wehea hoki ngā VMCs mā te hoahoa hanganga, me te whakamahinga e hiahiatia ana. Ko ngā VMCs C-frame ko ngā mea nui ake, e tuku ana i tētahi taurite pai o te pūmanawa, me te uruparenga. Ko ngā VMCs Gantry-type e tuku ana i te pūmanawa tino pai mō ngā wāhanga tino rahi, i ngā wāhanga taumaha. Ko ngā pokapū kōpae-kōpae he momo motuhake, he tere-tere hoki e whakamahia ana mō te kōpae, kōpae hoki i te paraihe, i ētahi atu matērihia kāore i te tirona. Ko te kōwhiringa i waenganui i ēnei momo e hāngai ana ki te āhua o te wāhanga, te pono e hiahiatia ana, te kōmuka hua, me te tahumaero, me ia momo e tohu ana i tētahi wāhi rerekē i te haora o te maru, pūkenga, me te utu.
