Open-source 3-D printing has already been shown to be a versatile tool for fabricating novel photovoltaic racking designs, however, they can also be useful for installing conventional PV modules on conventional racking. In order to ensure appropriate spacing and well oriented array these open-source photovoltaic spacers can be printed. The design has been created to be parametric in OpenSCAD so this design can be used for any conventional array. The concept and testing of the design was performed by SolarUP See also: * Distributed manufacturing with 3-D printing: a case study of recreational vehicle solar photovoltaic mounting systems * Total U.S. cost evaluation of low-weight tension-based photovoltaic flat-roof mounted racking 100% 3D printable - PLA is fine.