Pali njira zina zodzitetezera ndi kukonza makina opangira madzi a mafakitale, monga kugwiritsa ntchito magetsi oyenerera, pogwiritsa ntchito mphamvu zamagetsi, osathamanga popanda madzi, kuyeretsa nthawi zonse, etc. Kugwiritsa ntchito bwino ndi kukonza njira zothandizira kuonetsetsa kuti nthawi zonse ndi zokhazikika. kugwiritsa ntchito zida za laser.