There are various paid and open source 3D printing software available in the market that makes it easy for designers to create complex designs. The best program for 3D printing then uses these G codes to replicate physically realisable models.Ī best software for 3D printer modeling uses G-codes to replicate physically realizable models. A 3D printing software tool is used for transforming your drawings into meshes which are called G-codes. A 3D printing software is a tool which converts a design in your computer into a 3D model with depth and dimensions.