Download the free 2D and 3D practice drawing eBook containing the fully dimensioned drawing used in this video here: https://outreach.thesourcecad.com/practice-drawing In this video, I have explained step by step method of making a 3D knob in BricsCAD modelling environment. You can also download the trial version of Bricscad here https://www.bricsys.com/common/download.jsp