Makina osungirako rocetary amatanthawuza kuti makina osindikizira amatha kulembedwa mosiyanasiyana, chifukwa masiku ano zinthu zambiri zozungulira, zozungulira, zopindika komanso zopindika zimayenera kulembedwa ndi laser. Ndiwoyenera kuyika zolemba zazikulu kapena zolemetsa zolemetsa. Mwa kukhazikitsa laser cholembera mkono wowonda, mutu wa laser wozungulira umagwiritsidwa ntchito kumaliza ntchito yozungulira, yomwe ndi yosavuta kuzungulira kuposa zopangira zopangira, ndipo mutu wa laser wozungulira umafuna mphamvu zochepa kuti uwonongeke.
