Hi Przemas, hmm yeah that's an interesting idea. The main downside that I would see is that it would add another stage to the command.

Currently the command goes like this: Select profile then run revolve. Then when you're in the revolve command pick axis start point, pick axis end point and then you're done.

So that's just 2 picks in the command and no further input is needed. To do it the way you are describing would mean adding another stage to it and that would make the most simple and very frequently used case of a 360 degree revolve to take more steps than the current command.

Taking more steps is usually a type of negative trait, it means decreased efficiency.

Now sometimes it's worth it to pay the price for that negative trait if the additional stages would provide important functionality that is frequently needed. So does a partial 25 to 30 degree revolve fit in that category? To me not really but I'll think about it. Maybe it could be something where it takes an additional interactive stage if you set an option or something.

A polygon modeling program is a fairly different kind of case because of how you are going to utilize the polygon structure of the output to push and pull on. So probably the "return value" is generally higher there.

- Michael