This 3D model was originally created with Sketchup 8 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 Project design adaptation presented in issue 13 of the magazine ShopNotes. The structure is MDF 15 mm, and the collection box is compensated 6 mm. The cylinder and the cone were sized according to the measurement chart found in a Portuguese site.