Kuyang'anira musanayambe chithandizo cha kutentha kwa yankho ndi njira yowunikiratu kuti muwone momwe zinthu zamalizidwira komanso miyeso yake molingana ndiukadaulo,kufa kusakakujambula ndi ndondomeko khadi pambuyo pakupangakupanga kwatha. Kuyang'ana mwachindunji kuyenera kuyang'ana mbali izi:
①maonekedwe ayenera kukhala opanda ming'alu, palibe chosema mphete kutentha mankhwala khalidwe adiresi dzimbiri, okusayidi khungu ndi mikwingwirima ndi zolakwika zina.
②Zojambula zonse zakufa zokopaziyenera kusonyeza miyeso ikuluikulu, magawo apadera a mawonekedwe, magawo a mtanda, mawonekedwe ndi malo a mabowo.

③Kukula ndi kulondola kwakufa zokopakukhala mbali kutentha mankhwala ayenera kusonyeza Machining allowance, pamwamba roughness, dimensional kulondola, malo kulondola ndi mawonekedwe olondola.
④oyendera malinga ndi chiwerengero chakufa zokopamtanda 10% -20% malo cheke pansi-anzanu, pamene mtanda wa malo cheke forgings mogwirizana ndi kujambula, akhoza kulowa ndondomeko kuyendera. Zolemba zomwe zimafufuzidwa kuti ziyeneretsedwe asanazimitsidwe ziyenera kusungidwa padera.
⑤Musanazimitse, yang'anani alumali lazinthu zomalizidwa, 1-2zojambulaziyenera kuyikidwa sampuli (zinyalala zopindika ndi zong'ambika sizingagwiritsidwe ntchito ngati sampuli), ndipo ziyenera kulembedwa pakupanga"sampling" chitsanzo, kusonyeza kusiyana.
⑥Pambuyo pakuwunika, kuchuluka kwa zinthu zomwe zamalizidwa, kuchuluka kwa zinyalala zomwe zingakonzedwenso, kuchuluka kwa zinyalala zomaliza ndi nambala yachilema ziyenera kudzazidwa molondola mu khadi lomwe lili patsamba lino, ndikusainidwa ndi woyang'anira.