Lissafi na karkace bene
Ana kirga girman mai karkace bene
A tsawo daga cikin tsani H
A diamita na mataki D1
Ciki Diamita D2
A kwana na juyawa A
H - A tsawo daga cikin tsani
D1 - waje diamita
D2 - Ciki Diamita
A - da kwana na juyawa,
Tsawon matakai a karkace staircases kada ta kasance kasa da 80 cm.
Mataki nisa a cikin tsakiyar rabo ya zama ba kasa da 20-25 cm a cikin widest bangare - ba fiye da 40 cm. A tsawo daga cikin matakai na wani karkace bene na iya zama mafi girma daga tsawo bada shawarar ga tsakiyar gudu daga matakala. Al'ada mataki tsawo ga iyo da aka dauke su 16 cm for dunƙule - 18 cm.
A batu inda kafar faruwa, a helical tsãni mataki ya kamata game da 25-30 cm a gefen - a kalla 30-35 cm. Zurfin matakin ne quite dace. Sa'an nan kafar mutum zai kasance a mataki a cike, ba rataye a kan gefen.
Mataki na girma karkace bene.
h - da tsawon mataki
W1 - mataki nisa a cikin fadi da rabo
W2 - da nisa daga cikin workpiece mataki
α - zane kwana na mataki