Drawing smooth circles using Sketchup for GCSE Design and Technology
Several of my students will need to draw a CAD model that includes co-extruded pipe about 150 - 200 mm external diameter. This video shows how to use Sketchup to draw smooth circles with no visible line segments. If you watch the whole video you'll see how to draw a section of pipe to given internal and external dimensions, and then convert this drawing into a component.