{"action":"opened","issue":{"url":"https://api.github.com/repos/openscad/openscad/issues/1336","labels_url":"https://api.github.com/repos/openscad/openscad/issues/1336/labels{/name}","comments_url":"https://api.github.com/repos/openscad/openscad/issues/1336/comments","events_url":"https://api.github.com/repos/openscad/openscad/issues/1336/events","html_url":"https://github.com/openscad/openscad/issues/1336","id":74193345,"number":1336,"title":"Is there something im doing wrong in the following code","user":{"login":"MrRebel","id":9962947,"avatar_url":"https://avatars.githubusercontent.com/u/9962947?v=3","gravatar_id":"","url":"https://api.github.com/users/MrRebel","html_url":"https://github.com/MrRebel","followers_url":"https://api.github.com/users/MrRebel/followers","following_url":"https://api.github.com/users/MrRebel/following{/other_user}","gists_url":"https://api.github.com/users/MrRebel/gists{/gist_id}","starred_url":"https://api.github.com/users/MrRebel/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/MrRebel/subscriptions","organizations_url":"https://api.github.com/users/MrRebel/orgs","repos_url":"https://api.github.com/users/MrRebel/repos","events_url":"https://api.github.com/users/MrRebel/events{/privacy}","received_events_url":"https://api.github.com/users/MrRebel/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-05-08T01:51:28Z","updated_at":"2015-05-08T01:51:28Z","closed_at":null,"body":"I am getting a non 2 manifold error when trying to export the following code as an .stl . Why is this?\r\n\t\r\n\tmodule bearing(){\r\n\t\trotate([0,90,0]){\r\n\t\t\tcylinder(24,7.5,7.5,true,$fn = 100  );\r\n\t\t\tcylinder(50,5,5,true);\r\n\t\t\tdifference(){\r\n\t\t\t\tcylinder(4,9,9,true);\r\n\t\t\t\tcylinder(4,8,8,true);\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n\t\r\n\tmodule fullcar(){\r\n\t\tdifference(){\r\n\t\t\tcube([26,34,14],true);\r\n\t\t\tcylinder(16,6,6,true,$fn=100);\r\n\t\t\ttranslate([0,0,4.85]){\r\n\t\t\t\tcylinder(3.7,8,8,true,$fn = 100);\r\n\t\t\t}\r\n\t\t\ttranslate([0,0,-4.5]){\r\n\t\t\t\tcylinder(3,8,8,true,$fn = 100);\r\n\t\t\t}\r\n\t\t\ttranslate([0,-17,-5]){\r\n\t\t\t\tbearing();\r\n\t\t\t}\r\n\t\t\ttranslate([0,17,-5]){\r\n\t\t\t\tbearing();\r\n\t\t\t}\r\n\t\t\ttranslate([10,8,0]){\r\n\t\t\t\tcylinder(16,1.5,1.5,true,$fn = 100);\r\n\t\t\t}\r\n\t\t\ttranslate([10,-8,0]){\r\n\t\t\t\tcylinder(16,1.5,1.5,true,$fn = 100);\r\n\t\t\t}\r\n\t\t\ttranslate([10,0,0]){\r\n\t\t\t\tcylinder(16,1.5,1.5,true,$fn = 100);\r\n\t\t\t}\r\n\t\t\ttranslate([-10,0,0]){\r\n\t\t\t\tcylinder(16,1.5,1.5,true,$fn = 100);\r\n\t\t\t}\r\n\t\t\ttranslate([12,0,3]){\r\n\t\t\t\tcube([7,7,2.5],true);\r\n\t\t\t}\r\n\t\t\ttranslate([-12,0,3]){\r\n\t\t\t\tcube([7,7,2.5],true);\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n\tfullcar();"}}