Sizikunena kuti zikafika pakudula thovu zamakampani, ubwino wogwiritsa ntchito laser pa zida zodulira wamba zikuwonekera. Kudula thovu ndi laser kumapereka ubwino wambiri, monga kugwiritsira ntchito njira imodzi, kugwiritsira ntchito zinthu zambiri, kukonza kwapamwamba, kudula koyera ndi kolondola, ndi zina zotero.
Komabe, mpeniwo umagwira ntchito mwamphamvu ku thovu, zomwe zimapangitsa kuti zinthu zisinthe komanso m'mphepete mwauve wodulidwa. Mukamagwiritsa ntchito jet yamadzi kuti mudulire, chinyezi chimayamwa mu thovu loyamwa, lomwe limasiyanitsidwa ndi madzi odula. Choyamba, zinthuzo ziyenera kuumitsidwa zisanayambe kugwiritsidwa ntchito pokonza zina, zomwe ndi ntchito yowononga nthawi. Ndi laser kudula, sitepe iyi yadumpha, kukulolani kuti mubwerere kuntchito ndi zinthu nthawi yomweyo. Mosiyana ndi izi, laser ndi yokakamiza kwambiri ndipo mosakayikira ndiyo njira yabwino kwambiri yopangira thovu.