{"id":33919,"date":"2019-03-14T04:04:45","date_gmt":"2019-03-14T04:04:45","guid":{"rendered":"\/forum\/forums\/topic\/missing-faces-on-solid-bodies\/"},"modified":"2019-03-14T04:04:45","modified_gmt":"2019-03-14T04:04:45","slug":"missing-faces-on-solid-bodies","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/missing-faces-on-solid-bodies\/","title":{"rendered":"Missing faces on solid bodies"},"content":{"rendered":"<p>Hi there,<\/p>\n<p><\/p>\n<p>I have created a solid model which works fine (fully defined and solved), however, the orientation of the assembly (i.e. global csys) is actually upside-down to what it would be in real-life (global Y-axis is pointing downwards, not upwards).&nbsp;<\/p>\n<p><\/p>\n<p>As a result, I used the move-function in SpaceClaim to rotate the entire CAD model 180 degrees. The problem is that, after I rotated the model, some of the faces of the solid model in Workbench appear to be missing.&nbsp;<\/p>\n<p><\/p>\n<p>The image below shows an example of this. This is one of the many bodies in my model. The bottom face appears to be missing &#8211; I think that it&#8217;s because the the surface normal is pointing into the bodies instead of out of the body.<\/p>\n<p><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/1b5fa4b9-9c34-43ec-82e2-a9ae0016d7c6\/44c37b47-7bbb-4836-80b9-aa10002ae1b8_capture.jpg?width=690&amp;upscale=false\" alt=\"\" width=\"558\" height=\"347\"><\/p>\n<p><\/p>\n<p>In addition, the rotated bodies with missing surfaces appear to be &#8216;hollow&#8217;. This is very obvious when I create a cross-section.&nbsp;<\/p>\n<p><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/1b5fa4b9-9c34-43ec-82e2-a9ae0016d7c6\/4af126ad-65ed-489e-a062-aa10002f3168_capture1.jpg?width=690&amp;upscale=false\" alt=\"\" width=\"343\" height=\"336\"><\/p>\n<p><\/p>\n<p>This does not appear to be a problem in SpaceClaim. In SpaceClaim, there are no surfaces missing, all surface-normals are correct and the bodies appear to be solid (as they should be). This problem also does not appear when I just translate the model.&nbsp;<\/p>\n<p><\/p>\n<p>Would anyone be able to help me with this? I attached an archive file of both the original and rotated\/faulty model for reference.<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p>Kind regards,<\/p>\n<p><\/p>\n<p>Kai-Yeung<\/p>\n","protected":false},"template":"","class_list":["post-33919","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["6091"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":[null],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0","0","0","0","0"],"_btv_view_count":["3909"],"_bbp_subscription":["238078"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["33919"],"_bbp_forum_id":["27789"],"_bbp_engagement":["62","240","69632","166823"],"_bbp_voice_count":["4"],"_bbp_reply_count":["5"],"_bbp_last_reply_id":["89795"],"_bbp_last_active_id":["89795"],"_bbp_last_active_time":["2019-07-17 10:27:38"]},"test":"kaiyeungli"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/33919","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/33919\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=33919"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}