https://community.graphisoft.com/t5/Modeling/shell-tool/m-p/191980#M104090 are you looking to make a true ellipsoid shell? If so you can still use the basic shape objects and a combination of SEO to create a shell. In the past this method was necessary. <BR /> With the new shell tool I believe you could create the arc path of the ellipsoid, complete a rotation around the x, y or z axis depending on whether you are looking for a prolate or oblate ellipsoid. If you are looking for a scalene ellipsoid you can perhaps modify the angle of the arc to get the desired distortion.<BR /> Then using SEO you could trim the lower portions of the ellipsoid to get the desired height. <BR /> <BR /> I haven't tried any of this specifically, but I deal with shells every day and have found the new shell tool to be a great asset in my workflow, especially since SEOs now display properly in relation to shells and roofs.<BR /> <BR /> Graham Fri, 28 Oct 2011 17:30:29 GMT Graham Whipple 2011-10-28T17:30:29Z https://community.graphisoft.com/t5/Modeling/shell-tool/m-p/191979#M104089 <DIV class="actalk-migrated-content"><T>I wish to design a curved roof similar to a turtle shell, 90 ft long 76 ft wide with a total rise to centre of 12 ft. I have attempted this with the shell tool and have failed to understand the correct process. I would appreciate any information or direction to current video or print instruction.<BR /> <BR /> I know that I could use the mesh tool and I want to learn all the new tools in AC15</T></DIV> Tue, 23 May 2023 12:46:47 GMT https://community.graphisoft.com/t5/Modeling/shell-tool/m-p/191979#M104089 Anonymous 2023-05-23T12:46:47Z https://community.graphisoft.com/t5/Modeling/shell-tool/m-p/191980#M104090 are you looking to make a true ellipsoid shell? If so you can still use the basic shape objects and a combination of SEO to create a shell. In the past this method was necessary. <BR /> With the new shell tool I believe you could create the arc path of the ellipsoid, complete a rotation around the x, y or z axis depending on whether you are looking for a prolate or oblate ellipsoid. If you are looking for a scalene ellipsoid you can perhaps modify the angle of the arc to get the desired distortion.<BR /> Then using SEO you could trim the lower portions of the ellipsoid to get the desired height. <BR /> <BR /> I haven't tried any of this specifically, but I deal with shells every day and have found the new shell tool to be a great asset in my workflow, especially since SEOs now display properly in relation to shells and roofs.<BR /> <BR /> Graham Fri, 28 Oct 2011 17:30:29 GMT https://community.graphisoft.com/t5/Modeling/shell-tool/m-p/191980#M104090 Graham Whipple 2011-10-28T17:30:29Z