Cricut machines are smart crafting tools capable of cutting various materials, including paper, vinyl, leather, fabric, cardstock, and balsa wood. Depending on your Cricut model, you can use different blades and tools for cutting, writing, scoring, foiling, and engraving designs. To start designing and sending cut instructions to your Cricut machine, you need to download Cricut Design Space on your device from cricut.com/setup. This software offers all the necessary tools for your DIY projects.