You can create a helix with a triangular cross-section using the coil command. Next, make two concentric circles and sweep the required area along one of the edges of the triangular coil. Finally, you can delete the triangular coil using the remove command.
Hi - I am trying to do it in SW 2021 - at 3:11 - I can not choose 3x body = only 1/4 of circle , but min is abt 1/2 so result is not as you have it ! Help please
