{"action":"created","issue":{"url":"https://api.github.com/repos/prusa3d/Slic3r/issues/74","repository_url":"https://api.github.com/repos/prusa3d/Slic3r","labels_url":"https://api.github.com/repos/prusa3d/Slic3r/issues/74/labels{/name}","comments_url":"https://api.github.com/repos/prusa3d/Slic3r/issues/74/comments","events_url":"https://api.github.com/repos/prusa3d/Slic3r/issues/74/events","html_url":"https://github.com/prusa3d/Slic3r/issues/74","id":197338953,"number":74,"title":"Seam position \"aligned\" does not work","user":{"login":"burbilog","id":8136403,"avatar_url":"https://avatars.githubusercontent.com/u/8136403?v=3","gravatar_id":"","url":"https://api.github.com/users/burbilog","html_url":"https://github.com/burbilog","followers_url":"https://api.github.com/users/burbilog/followers","following_url":"https://api.github.com/users/burbilog/following{/other_user}","gists_url":"https://api.github.com/users/burbilog/gists{/gist_id}","starred_url":"https://api.github.com/users/burbilog/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/burbilog/subscriptions","organizations_url":"https://api.github.com/users/burbilog/orgs","repos_url":"https://api.github.com/users/burbilog/repos","events_url":"https://api.github.com/users/burbilog/events{/privacy}","received_events_url":"https://api.github.com/users/burbilog/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":1,"created_at":"2016-12-23T09:40:09Z","updated_at":"2016-12-24T10:09:37Z","closed_at":null,"body":"### Version\r\n1.31.6-prusa3d-linux64\r\n\r\n### Operating system type + version\r\nUbuntu 14.04.05\r\n\r\n### Behavior\r\n\r\nProblem: if I choose seam position \"aligned\" it does not align all seams like original slic3r does, but instead it works exactly the same as \"nearest\" option. It's easy to reproduce, just select \"aligned\" setting and print. Current original slic3r with the same \"aligned\" setting and the same config prints these seams correctly.\r\n\r\n#### STL/Config (.ZIP) where problem occurs\r\n\r\nWeird. Can't upload zip file. Anyway, it seems to happens with any config settings, just try to turn on \"aligned\" option.\r\n"},"comment":{"url":"https://api.github.com/repos/prusa3d/Slic3r/issues/comments/269078089","html_url":"https://github.com/prusa3d/Slic3r/issues/74#issuecomment-269078089","issue_url":"https://api.github.com/repos/prusa3d/Slic3r/issues/74","id":269078089,"user":{"login":"burbilog","id":8136403,"avatar_url":"https://avatars.githubusercontent.com/u/8136403?v=3","gravatar_id":"","url":"https://api.github.com/users/burbilog","html_url":"https://github.com/burbilog","followers_url":"https://api.github.com/users/burbilog/followers","following_url":"https://api.github.com/users/burbilog/following{/other_user}","gists_url":"https://api.github.com/users/burbilog/gists{/gist_id}","starred_url":"https://api.github.com/users/burbilog/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/burbilog/subscriptions","organizations_url":"https://api.github.com/users/burbilog/orgs","repos_url":"https://api.github.com/users/burbilog/repos","events_url":"https://api.github.com/users/burbilog/events{/privacy}","received_events_url":"https://api.github.com/users/burbilog/received_events","type":"User","site_admin":false},"created_at":"2016-12-24T10:09:37Z","updated_at":"2016-12-24T10:09:37Z","body":"> The \"aligned\" seam never worked, the code keeps only a single \"seam\" value per object slice, so if you had multiple islands, they were only aligned by a pure luck (the strategy \"take the closest point to the last print head position often worked\". So the \"aligned\" seem was really mostly useful for the vase prints IMHO.\r\n\r\nEh... no. Not only for the vase, but for some other objects too. Like simple geometric objects, for example. I can't insert photos right now because I left all these 20 mm test cubes at work, but cubes with \"aligned\" options are really smooth while cubes with \"nearest\" have regular saw-like pattern on every vertical edge (and it shows on flat sides too)... yes, mechanics on my $200 printer kit is not that great, but hey, \"aligned\" worked for  me!  And even if some option works *sometimes* it's good to have it than to have nothing...\r\n\r\n> I personally think it that Slic3r excels in the automatic placement of the seam\r\n\r\nWell, apparently, sometimes it does not.  And since the seam can't be completely eliminated, may be it's better to implement another feature from S3D -- it has an option to specify x and y point for the seam, so it tries to place the seam closest to that point. "}}
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