Most of our 3d illusion vectors are draw with not closed vectors, so there are 2 ways to engrave them. 1. To engrave not closed vectors in fast cut mode ( fast speed and low power ). 2. To convert all engraving vectors to closed shapes. For example in Corel Draw it is CTRL+SHIFT+Q combination or in free Inkscape software it is CTRL+ALT+C combination. After this conversion you will be able to engrave it in scan mode. If it is hard for you, just ask us for conversion after purchase. It is free option.