1. Special makina-chida njanji mtundu wa kuponyera makina-m'munsi, anatenga ndondomeko ya backfire, kukhwima, kupanga makina m'munsi popanda kupotoza.
2. Bokosi lililonse la gawo lokonzedwa ndi zida zaukadaulo, kutsimikizira kulondola kwambiri komanso kusinthasintha kwabwino.
3. Kupanga, kusindikiza, slitting mbali zonse zikhoza kusinthidwa momasuka pa njanji ndi makona atatu chingwe ndi lathyathyathya chingwe.
4. Chodulira chimasinthira gudumu la giya la ax-axes bevel, kuti lisasunthike komanso losalala pakati pa unyolo kapena lamba likakhala chingwe.
5. Nkhungu yomwe ili ndi pini yamphongo, kuti ikhale yosavuta kusintha. Ndi makina opangira zinthu zambiri omwe amatha kunyamula mizere ndi makulidwe aliwonse posintha nkhungu pamakina omwewo, komanso amatha kunyamula madzi ngati chida chodzaza madzi chili ndi zida.
6. Imasinthasintha mmwamba ndi pansi pa reticulate pattern kuti igwirizane, silinda ya mpweya wa masitepe ambiri, kusindikiza kutentha kawiri kumapangitsa kuti pakhale bwino kusindikiza.