Unlike extrusions, revolutions require an axis. This may be a line on the profile or it may a Construction line, which must be included when you profile the sketch. A construction line is drawn in a linetype that is NOT continuous. The most noteable difference is that angles are now used instead of distances. Extrusions are done on a perpendicular straight-line path and revolutions are done on a circular path.
Sweeps follow a general path in space determined by the user.
We will not demonstrate sweps at this time.