This 3D model was originally created with Sketchup 13 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 This grill is made in wood. The hex has a 6radius and the pattern is obtained by moving the hex by 6 accorss. Then rotating the hex by 90 deg and repeating the sequencing. After that shift the entire line as seen in the pattern.