In order to regenerate damaged tissue in human, a method termed as tissue engineering uses scaffolds as cell pathway to reconnect with original tissue was introduced. Recently, additive manufacturing technique allows production of 3D scaffold construct where biomaterial and cells can be directly located in predetermined spatial arrangement. In this research, a commercial fused deposition modeling system, Reprap MendelTM, is employed so that it enables us to realize microenvironment composed of biodegradable material i.e. polylactic acid. Furthermore, simple geometries are proposed and later mechanically characterized in term of stiffness and porosity. This research focuses on the design and realization of 3D scaffold with various sizes and geometries. Variations of these parameters will result in scaffolds with porosity correlated to the value of the modulus of elasticity (E). The measurement shows that our scaffolds have a porosity ranging from 24% -77% with a modulus of elasticity ranging from 1.6 to 4.5 MPa.