Makina osindikizira a digito monga zida zapamwamba kwambiri komanso zamtengo wapatali zopangira nsalu zosindikizira, zimagwira ntchito yofunika kwambiri, yomwe kusindikiza kusindikiza - mitu monga gawo lalikulu la makina osindikizira a digito, machitidwe ake ndi moyo wake zimakhudza kwambiri khalidwe.
A Boyin amachitira makina aliwonse, mphuno iliyonse ili ndi chisamaliro.Maphuno ali ngati ana athu, amafunikira chisamaliro chosamala, chodekha komanso chodekha. Kenako, a Boyin apitiliza kufotokoza momwe angasungire makinawo ndi ma nozzles m'nyengo yozizira② Samalirani osankhidwa osasunthika.