This 3D model was originally created with Sketchup 6 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 All radii are collected into a circle. Followed form diameters: 530, 770, 1000, 1490, 2000, 2500, 3000, 3500, 4000, 5000, 6000, Using tool PUSH PULL (P) can stretch profiles up to any height, thus obtaining structural elements of your exposure. To highlight an item, double-click the mouse inside the cell; triple short press will highlight your entire circle (holding SHIFT you can select several different items and then copy them to the clipboard).