Kei te whakakapi koe i tō mekameka roera engari kei te raru koe ki te whakatau i te rahi? Kaua e manukanuka; ehara ko koe anake. Nā te maha o ngā rahi me ngā uauatanga, he maha ngā tāngata e uaua ana ki te whakatau i te rahi tika o te mekameka roera. Heoi, mā te mōhiotanga me ngā taputapu tika, ka māmā ake te whakatau i te rahi o ngā mekameka roera. I roto i tēnei tuhinga, ka ārahi mātou i a koe i roto i te tukanga me pēhea te whakatau i te rahi o tō mekameka roera.
I mua i te ruku ki te tukanga taahiraa-i-te-taahiraa, me mārama poto tātou he aha te mekameka roera. Ko te mekameka roera he taputapu tuku hiko miihini e whakamahia ana i roto i ngā momo ahumahi hei tuku i te nekehanga hurihuri i waenga i ngā pou e rua. Kei roto i tēnei he raupapa roera porotaka honohono e hono ana ki ngā porotiti ōrite hei hanga i tētahi pūnaha tuku hiko pono, whai hua hoki.
Na, me neke atu tātou ki te whakatau i te rahi o te mekameka roera:
1. Tātaihia te mokowā: Ko te taahiraa tuatahi ko te ine i te tawhiti i waenga i ngā pokapū o ngā pine e toru e whai ake nei. Ka kiia tēnei ine ko te pikinga o te mekameka. Ko te pikinga o te nuinga o ngā mekameka roera he 0.375″ (3/8″) 0.5″ (1/2″) rānei. Kia tika te whakamahi i ngā taputapu ine mō ngā hua tika.
2. Inehia te whānui o te roera: Ko te whānui o te roera ko te whānui o ngā roera porotaka i runga i te mekameka. Tangohia he roera ka ine i tōna whānui ki te caliper, ki te rīpene ine rānei. Ka rerekē pea ngā whānui o ngā roera, engari ko ngā rahi noa ko te 0.2″ (5mm), 0.25″ (6.35mm), me te 0.375″ (9.525mm).
3. Tātaihia te whānui o te mekameka: Muri iho, whakatauhia te whānui o te mekameka roera mā te ine i te tawhiti i waenga i ngā pereti o roto. He mea nui tēnei inenga nā te mea ka pā ki te matotoru whānui o te mekameka. Ko ngā whānui noa mō te mekameka roera ko te 0.399 inihi (10.16 mm), 0.5 inihi (12.7 mm), me te 0.625 inihi (15.875 mm).
4. Tāutuhia te kaiwawao hiko: He āhuatanga motuhake te kaiwawao hiko i runga i te mekameka e āwhina ana ki te hono me te momotu i te mekameka ina hiahiatia. Whakatauhia te momo kaiwawao kei a koe – he pine cotter, he topenga puna, he rivet rānei, he mea nui hoki ēnei mōhiohio ina rapu ana koe i tētahi mekameka whakakapinga.
5. Kōrero ki tētahi tohunga: Mena kāore koe i te tino mōhio ki tētahi rahi, he uaua rānei ki te kimi i te rahi tika, he mea pai kia kōrero koe ki tētahi tohunga. He toa taputapu ā-rohe, he kaihokohoko motuhake rānei e whakahaere ana i ngā wāhanga tuku taraiwa, ā, ka taea e rātou te āwhina i a koe ki te whiriwhiri i te mekameka whakakapinga tika.
Mā te whai i ēnei mahi, ka taea e koe te whakatau tika i te rahi o tō mekameka roera. Kia maumahara ki te ine i ngā pūwāhi maha o te mekameka kia rite ai, nā te mea ka rerekē pea ngā āhua o te kakahu.
Hei whakarāpopototanga, ko te tukanga o te ine i te rahi o te mekameka roera pea te ahua uaua i te tīmatanga, engari mā te huarahi pūnaha me te aro ki ngā taipitopito, ka taea e koe te whakatau ngāwari i ngā inenga tika. Mā te whakamahi i ngā taputapu ine tika, tatauhia te teitei, inehia ngā diameter roera me te whānui o te mekameka, me te tautuhi i ngā momo pakaru. Kaua e mangere ki te rapu tohutohu a te tohunga ina hiahiatia. Mā ēnei mōhiohio ka taea e koe te kimi māia i te mekameka whakakapinga tino tika mō ō hiahia tuku hiko.
Wā tuku: Pipiri-16-2023