1.Ubugari bw'icyuma

Ubugari bw'icyuma ni igipimo kuva hejuru yiryinyo kugeza kumpera yinyuma. Icyuma cyagutse kirakomeye muri rusange (ibyuma byinshi) kandi bikunda gukurikirana neza kumuziga wa bande kuruta ibyuma bigufi. Iyo ukata ibintu byimbitse, icyuma kigari gifite ubushobozi buke bwo gutandukana kuko impera yinyuma, iyo mugukata, ifasha kuyobora imbere yicyuma, cyane cyane niba gukuraho impande bitarenze urugero. (Nka ngingo yerekana, dushobora guhamagara icyuma gifite 1/4 kugeza 3/8 santimetero z'ubugari "ubugari buciriritse".)

Icyitonderwa kidasanzwe: Iyo usubije igiti (ni ukuvuga, ukigabanyamo ibice bibiri byubunini nkumwimerere), icyuma kigufi kizaca cyane kuruta icyuma kinini. Imbaraga zo gukata zizakora icyuma kinini gitandukana kuruhande, mugihe hamwe nicyuma kigufi, imbaraga zizasunika inyuma, ariko ntabwo kuruhande. Ntabwo aribyo bishobora guteganijwe, ariko nukuri.

Icyuma gifunganye kirashobora, mugihe ukata umurongo, uca umurongo muto wa radiyo ugereranije nu mugari. Kurugero, icyuma-cy'ubugari gishobora kugabanya radiyo 5-1 / 2-hafi (hafi) mugihe icyuma cya 3/16 gishobora guca radiyo 5/16 (hafi yubunini). . rougher kandi ufite inzererezi nyinshi.)

Iyo ubonye ibiti bikomeye hamwe nubucucike bukabije nkibiti byumuhondo byamajyepfo, ni byo nkunda gukoresha icyuma kinini gishoboka; ibiti bito cyane birashobora gukoresha icyuma kigufi, niba ubishaka.

2.Umubyimba wicyuma

Muri rusange, umubyimba mwinshi, niko impagarara nyinshi zishobora gukoreshwa. Ibyuma binini kandi binini cyane. Impagarara nyinshi bisobanura kugabanuka gukomeye. Nyamara, ibyuma binini bisobanura ibiti byinshi. Ibyuma binini kandi biragoye cyane kuzenguruka ibiziga bya bande, bityo rero abakora ibicuruzwa byinshi bazerekana ubunini cyangwa ubunini. Inziga ntoya ya diameter ikenera ibyuma byoroshye. Kurugero, uruziga rwa santimetero 12 z'uburebure akenshi rufite ibikoresho bya 0.025 bya santimetero (ntarengwa) icyuma gifite ½ santimetero cyangwa kigufi. Uruziga rwa santimetero 18 rushobora gukoresha icyuma cya 0.032-cy'ubugari gifite ubugari.

Muri rusange, ibyuma binini kandi binini bizaba amahitamo mugihe ubonye ibiti byimbitse nishyamba bifite ipfundo rikomeye. Ibiti nkibi bikenera imbaraga zinyongera zibyibushye, binini kugirango wirinde kumeneka. Icyuma kibisi nacyo gihindagurika gake mugihe cyo kubyutsa.