I’m still new to Sketchup, so I need some help from someone more experienced. What I want to do is to create a disk 60 mm in diameter and 15 mm thick. That part is easy. What I then want is to make one of the surfaces wavy. Imagine dividing the disk surface into 4 quadrants and imposing a sine wave on it such that there is a peak every 90 degrees. I want to height from valley to peak to be 5 mm.
Why do I want this part? I am working on an idea to make a cam system. I will attach the disk to a vertically mounted DC motor. A vertically mounted rod with a tiny wheel would be above the disk and it would go up and down following the wavy surface of the disk. Think of a piston rod riding a camshaft in a car engine.
Ideally, someone can send me a file I can import into Sketchup or a tutorial on how I can do this.