Rhino 3D Basics - Surface Modelling Part XI - Extrusions, BooleanDifference & MakeHole
3 different ways to do the same thing - Extrude, Extrude + BooleanDifference, and Extrude + MakeHole. Always good to have options.
Download my display mode and Rhino shortcut aliases file for free and support me by purchasing the exercise file to follow along with here: www.futurelandscapes.ca/resources