Iyi mashini irakwiriye gutunganya imashini nububiko bwububiko bwikigo cyoguhingura vertical, uhereye kumashini itoroshye no kurangiza gutunganya no gutunganya ibisabwa bikurikizwa, birashobora kurangiza gusya, gucukura, gukanda, kurambirana, nibikorwa bitandukanye.