Ihe mepụtara metụtara plank ụzọ ụgbọ ala nwere ihe nrụnye, gụnyere: ibu nwere oghere ọnụ ụzọ na mmegharị nke contour, ya na ụgbọ ala ndị dị n'akụkụ ọnụ ime nwere ọtụtụ nkwado na ọnụ ụzọ ụgbọ ala nke plọg nkwụnye nkwụnye: igbe mpụta nwere a rụrụ, n'elu nke mpụta contour igbe ofu na pedestal nke circumferential, mpụta contour igbe n'ime contour na ụgbọ ala ụzọ atụ ọdịiche kpụrụ n'etiti mpụta contour nke: Mpụta nsọtụ nke a plurality nke ebuli akụkụ mgbanaka mpụta contour etiti na-ahaziri, a na-ejikọta akụkụ nke na-ebuli elu na nsọtụ mpụta nke mpụta contour frame, na ihe na-ebuli elu nwere ike ibuli elu nke elu elu;Akwụsịla oche egosi ọkpụkpọ n'elu etiti mpụta, ma a na-enye ọtụtụ oghere n'oche akara ọkpụkpọ.A na-edobe oghere ọ bụla site na akara ọkpụkpọ, na njedebe nke akara ngosi ahụ megidere efere ọnụ ụzọ ụgbọ ala: mkpịsị ugodi, mkpịsị ugodi bụ cylindrical na dayameta ya abụọ na-agafe agafe dabara na nha nha chọrọ.Ụdị ngwa nchọpụta contour zuru ezu maka efere ọnụ ụzọ ụgbọ ala dị mma iji ghọta n'ụzọ zuru ezu nchọpụta contour nke ibe.