Hello
a pdf is not a great help to help you. By the way as you are lucky I have my crystal ball your components seems disabled, enable them by right clicking then choose enable.
And why not choosing an integer to make a division? Especially on a revolved shape.
An why a pdf for an image? There is a button to insert an image.
dissertation is with a single R
…
That’s more than one advice, but it is free.
Here is a great link to begin in this wonderful community
your components seems disabled, enable them by right clicking then choose enable.