3D printing is one of the rapidly advancing and spreading technologies of our time. It is not uncommon for households to have such devices, often used for creating plastic components. These widely accessible 3D printers are primarily suitable for manufacturing plastic parts. One might think that low-density materials have little significance in explosives technology, but this notion can be convincingly challenged. Shaped and cutting charges made through additive manufacturing can have an impact on the protection of critical infrastructure, as they can be crafted anywhere in the world with some expertise and practice.