https://forums.autodesk.com/t5/robot-structural-analysis-forum/section-definition-iz-gt-iy/m-p/9103208#M22331 <P>Hi&nbsp;<a href="https://forums.autodesk.com/t5/user/viewprofilepage/user-id/806320">@Rafacascudo</a>&nbsp;</P> <P>&nbsp;</P> <P>Maybe....</P> <P>Compare left bottom corner with right bottom one.</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="leftbottomcorner.jpg" style="width: 591px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/690505iB4FBBA7236B842E0/image-size/large?v=v2&amp;px=999" role="button" title="leftbottomcorner.jpg" alt="leftbottomcorner.jpg" /></span></P> Wed, 23 Oct 2019 12:38:44 GMT Rafal.Gaweda 2019-10-23T12:38:44Z https://forums.autodesk.com/t5/robot-structural-analysis-forum/section-definition-iz-gt-iy/m-p/9102062#M22327 <P>On section definition , for some years now ,when Iz is greater than Iy , Robot prompts for you to choose if you want to keep Iy on its default position ( horizontal for beams) But not always!!! I have 2 very similar where IZ is much larger than Iy and it prompts me only on one of the sections. Is there a way to make it prompt on all sections where this happens?</P> <P><a href="https://forums.autodesk.com/t5/user/viewprofilepage/user-id/705292">@Artur.Kosakowski</a>&nbsp;</P> <P><a href="https://forums.autodesk.com/t5/user/viewprofilepage/user-id/589195">@Rafal.Gaweda</a>&nbsp;</P> Tue, 22 Oct 2019 21:08:45 GMT https://forums.autodesk.com/t5/robot-structural-analysis-forum/section-definition-iz-gt-iy/m-p/9102062#M22327 Rafacascudo 2019-10-22T21:08:45Z https://forums.autodesk.com/t5/robot-structural-analysis-forum/section-definition-iz-gt-iy/m-p/9103133#M22328 <P>Hi&nbsp;<a href="https://forums.autodesk.com/t5/user/viewprofilepage/user-id/806320">@Rafacascudo</a>&nbsp;</P> <P>&nbsp;</P> <P>Sec file please.</P> <P>&nbsp;</P> Wed, 23 Oct 2019 12:08:09 GMT https://forums.autodesk.com/t5/robot-structural-analysis-forum/section-definition-iz-gt-iy/m-p/9103133#M22328 Rafal.Gaweda 2019-10-23T12:08:09Z https://forums.autodesk.com/t5/robot-structural-analysis-forum/section-definition-iz-gt-iy/m-p/9103146#M22329 <P>attached</P> Wed, 23 Oct 2019 12:13:56 GMT https://forums.autodesk.com/t5/robot-structural-analysis-forum/section-definition-iz-gt-iy/m-p/9103146#M22329 Rafacascudo 2019-10-23T12:13:56Z https://forums.autodesk.com/t5/robot-structural-analysis-forum/section-definition-iz-gt-iy/m-p/9103179#M22330 <P>Hi&nbsp;<a href="https://forums.autodesk.com/t5/user/viewprofilepage/user-id/806320">@Rafacascudo</a>&nbsp;</P> <P>&nbsp;</P> <P>Sometimes Robot is too accurate <span class="lia-unicode-emoji" title=":slightly_smiling_face:">🙂</span></P> <P>I am afraid it might be even not possible to get exact 90deg as You have very thin parts together with thick in section.</P> <P>&nbsp;</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="90sec.jpg" style="width: 999px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/690500iA6016D9D43F2BE70/image-size/large?v=v2&amp;px=999" role="button" title="90sec.jpg" alt="90sec.jpg" /></span></P> Wed, 23 Oct 2019 12:27:16 GMT https://forums.autodesk.com/t5/robot-structural-analysis-forum/section-definition-iz-gt-iy/m-p/9103179#M22330 Rafal.Gaweda 2019-10-23T12:27:16Z https://forums.autodesk.com/t5/robot-structural-analysis-forum/section-definition-iz-gt-iy/m-p/9103208#M22331 <P>Hi&nbsp;<a href="https://forums.autodesk.com/t5/user/viewprofilepage/user-id/806320">@Rafacascudo</a>&nbsp;</P> <P>&nbsp;</P> <P>Maybe....</P> <P>Compare left bottom corner with right bottom one.</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="leftbottomcorner.jpg" style="width: 591px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/690505iB4FBBA7236B842E0/image-size/large?v=v2&amp;px=999" role="button" title="leftbottomcorner.jpg" alt="leftbottomcorner.jpg" /></span></P> Wed, 23 Oct 2019 12:38:44 GMT https://forums.autodesk.com/t5/robot-structural-analysis-forum/section-definition-iz-gt-iy/m-p/9103208#M22331 Rafal.Gaweda 2019-10-23T12:38:44Z https://forums.autodesk.com/t5/robot-structural-analysis-forum/section-definition-iz-gt-iy/m-p/9103229#M22332 <P>yes , it is possible to have perfect results with the exact same type of section .</P> <P>And this section below has thinner plates than the one that has problems!!!</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="perfect results.jpg" style="width: 999px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/690508iB3E3A4582BBBD404/image-size/large?v=v2&amp;px=999" role="button" title="perfect results.jpg" alt="perfect results.jpg" /></span></P> <P>Anyway ,why is it allowed to rotate the section when angle is 90 and not allowed when it is 89,999999 degrees?</P> <P>Section with perfect results attached</P> <P>&nbsp;</P> Wed, 23 Oct 2019 12:47:38 GMT https://forums.autodesk.com/t5/robot-structural-analysis-forum/section-definition-iz-gt-iy/m-p/9103229#M22332 Rafacascudo 2019-10-23T12:47:38Z https://forums.autodesk.com/t5/robot-structural-analysis-forum/section-definition-iz-gt-iy/m-p/9103240#M22333 <P>Hi&nbsp;<a href="https://forums.autodesk.com/t5/user/viewprofilepage/user-id/806320">@Rafacascudo</a>&nbsp;</P> <P>&nbsp;</P> <P>Section with fixed corner attached</P> <P>&nbsp;</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="leftbottomcorner1.jpg" style="width: 999px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/690511i0F7BFEE4A68EC0D5/image-size/large?v=v2&amp;px=999" role="button" title="leftbottomcorner1.jpg" alt="leftbottomcorner1.jpg" /></span></P> <P>&nbsp;</P> Wed, 23 Oct 2019 12:50:38 GMT https://forums.autodesk.com/t5/robot-structural-analysis-forum/section-definition-iz-gt-iy/m-p/9103240#M22333 Rafal.Gaweda 2019-10-23T12:50:38Z https://forums.autodesk.com/t5/robot-structural-analysis-forum/section-definition-iz-gt-iy/m-p/9103329#M22334 <P>Thx <a href="https://forums.autodesk.com/t5/user/viewprofilepage/user-id/589195">@Rafal.Gaweda</a> !!</P> <P>But why this axes rotation restriction ?&nbsp; 89,9999 degrees doesn´t change the fact that Iy will still be less than Iz</P> Wed, 23 Oct 2019 13:26:15 GMT https://forums.autodesk.com/t5/robot-structural-analysis-forum/section-definition-iz-gt-iy/m-p/9103329#M22334 Rafacascudo 2019-10-23T13:26:15Z