Ib qho phom ntuag yog ib qho (feem ntau) tau sib npaug ntawm cov hniav nyob ib puag ncig, uas feem ntau sib luag rau cov ncej ntawm txoj kab rov tav.
Spline Hom
Tshaj Plaws Tshaj Plaws Tshaj Plaws Tshaj Plaws (Parallel Key Spline): Hom no muaj sib npaug ntawm cov hniav uas ncaj ncaj. Cov hniav ntawm tus ncej tau muaj qhov sib npaug ntawm qhov sib npaug ntawm txhua tus taw tes los ntsuas tawm ntawm lub axis ntawm kev sib hloov.
Thaj Tsam Spline: Ib zaug ntxiv, hom no muaj qhov sib npaug ntawm cov hniav, tab sis lawv tsis ncaj nraim. Cov hniav muaj ib daim ntawv ntxim nyiam, zoo nkaus li ib rab koob hniav.
Crowned Splines: Cov splines yog feem ntau involute. Lawv tuaj yeem yog cov hauv paus cog qoob loo, fillet cag, los yog kab loj loj.
Kab Thaiv Kab Ntxaum: Cov no tuaj yeem yog cov ntaub ntawv lossis cov ntaub ntawv tsis muaj mob. Phaj phaj nyaj muaj ib cov hlau lead thiab lub kaum pob zeb qhuav.
