


{"id":32371,"date":"2018-12-31T00:30:28","date_gmt":"2018-12-31T00:30:28","guid":{"rendered":"\/forum\/forums\/topic\/cad-models-from-spaceclaim-insfufficient-tolerance-of-geometries\/"},"modified":"2018-12-31T00:30:28","modified_gmt":"2018-12-31T00:30:28","slug":"cad-models-from-spaceclaim-insfufficient-tolerance-of-geometries","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/cad-models-from-spaceclaim-insfufficient-tolerance-of-geometries\/","title":{"rendered":"CAD models from SpaceClaim &#8211; insfufficient tolerance of geometries."},"content":{"rendered":"<p>&nbsp;<\/p>\n<p><\/p>\n<p class=\"MsoNormal\">Hello there!<\/p>\n<p> Recently I&#8217;ve stumbled upon following problem in Ansys Workbench. I&#8217;m using SpaceClaim as modeler and it seems like the tolerance of the geometry that is transfered into Mechanical is insufficient. I&#8217;ve proven that by comparing results from a case where the geometry is transferred from SC to Mechanical and when I export the geometry from SC to .STP file and import it in DesignModeler and then use it in Mechanical. The difference in the results are significant, up to 10% as the&nbsp;model is highly sensitive&nbsp;for insignificant geometrical changes. How do I know the problem is with transfering the geometry from SC to Mechanical and not with .STP file? Well, exported .STP file has size of about 300kb. When I import the geometry from SC in DM by using &#8220;Attach to Active CAD Geometry&#8221; and export .STP file from it, the file has the size of 11kb. Huge difference, isnt it? Again, when I import the 11kb .STP file to DM or SC and run the simulation in Mechanical, I obtain exactly the same result as I would just generate it in SC and then transfer it to Mechanical in normal way. This proves the geometry transfered from SC to Mechanical has extremely low quality in this case.&nbsp;<\/p>\n<p><\/p>\n<p class=\"MsoNormal\">Is it possible to increase the accuracy\/tolerance of the model that is transfered into Mechanical from SC? In Mechanical, when the geometry is transfered from SC, in the details of the geometrical entity, there is a tab &#8220;CAD Attributes&#8221;, where we can find the setting called &#8220;PartTolerance&#8221; which default value is 1e-8 (0.00000001). However, the setting is grayed-out. I&#8217;ve spent already hours on trying to change this setting, however I found no solution. I&#8217;m desperately looking for help.<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-32371","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["4543"],"_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":["3144"],"_bbp_subscription":["267440"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["32371"],"_bbp_forum_id":["27789"],"_bbp_engagement":["240","161474","267440"],"_bbp_voice_count":["3"],"_bbp_reply_count":["8"],"_bbp_last_reply_id":["240535"],"_bbp_last_active_id":["240535"],"_bbp_last_active_time":["2022-11-11 19:07:31"]},"test":"krsowpp"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/32371","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\/32371\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=32371"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}