Umphezulu okhoni usetyenziswa njengomphezulu wokukhomba, othabatha indawo yevili elithontsizayo lomphezulu onqunyulweyo osekupheleni kude nomqala kwi-hyperbola.
Iimpawu zeizixhobo ze-hypoid:
1. Xa ujonge amazinyo evili elikhulu, beka ivili elincinci ngokuthe tye kwicala lasekunene levili elikhulu. Ukuba i-axis yeshaft encinci ingaphantsi kwe-axis yevili elikhulu, ibizwa ngokuba yi-downward offset, kungenjalo yi-upward offset.
2. Njengoko umgama we-offset usanda, i-engile ye-helix yevili elincinci nayo iyanda, kwaye ububanzi bangaphandle bevili elincinci buyanda. Ngale ndlela, ukuqina kunye namandla evili elincinci kunokuphuculwa, kwaye inani lamazinyo evili elincinci linokuncipha, kwaye ukudluliselwa komlinganiselo ophezulu wokunciphisa kunokufunyanwa.
Iingenelo zegiya ze-hypoid:
1. Inganciphisa indawo yegiya yokuqhuba kunye neshaft yokuqhuba, ngaloo ndlela yehlisa umbindi womxhuzulane womzimba kunye nesithuthi, nto leyo eluncedo ekuphuculeni uzinzo lokuqhuba kwemoto.
2. Ukususwa kwegiya kwenza inani lamazinyo egiya yokuqhuba linciphe, kwaye isibini segiya sinokufumana umlinganiselo omkhulu wokudluliselwa
3. I-coefficient yokudibanisa kweigiya ye-hyperboloid Ukuthunga nge-meshing kukhulu xa kuthelekiswa, amandla aphezulu xa usebenza, umthamo wokuthwala mkhulu, ingxolo incinci, uthumelo luzinzile ngakumbi, kwaye ubomi benkonzo bude.