{"action":"created","issue":{"url":"https://api.github.com/repos/alexrj/Slic3r/issues/2544","labels_url":"https://api.github.com/repos/alexrj/Slic3r/issues/2544/labels{/name}","comments_url":"https://api.github.com/repos/alexrj/Slic3r/issues/2544/comments","events_url":"https://api.github.com/repos/alexrj/Slic3r/issues/2544/events","html_url":"https://github.com/alexrj/Slic3r/issues/2544","id":54411916,"number":2544,"title":"Support material Skirt issues","user":{"login":"sirkha","id":2826011,"avatar_url":"https://avatars.githubusercontent.com/u/2826011?v=3","gravatar_id":"","url":"https://api.github.com/users/sirkha","html_url":"https://github.com/sirkha","followers_url":"https://api.github.com/users/sirkha/followers","following_url":"https://api.github.com/users/sirkha/following{/other_user}","gists_url":"https://api.github.com/users/sirkha/gists{/gist_id}","starred_url":"https://api.github.com/users/sirkha/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/sirkha/subscriptions","organizations_url":"https://api.github.com/users/sirkha/orgs","repos_url":"https://api.github.com/users/sirkha/repos","events_url":"https://api.github.com/users/sirkha/events{/privacy}","received_events_url":"https://api.github.com/users/sirkha/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":1,"created_at":"2015-01-15T04:40:32Z","updated_at":"2015-01-15T04:41:34Z","closed_at":null,"body":"Problem 1: When generating automatic support material, some times a layer just for support material is generated in between the normal layers of the print. I am not sure if this is by design, but either way, the skirt is not on that layer in the tool path preview, but in the G-code it is. The problems with this are two-fold: the skirt basically tries to print twice in the same place which for me has resulted in skirts getting torn off the bed, and also has caused the extruder to jam, as too much back pressure is created and the hobbed bolt wears a hole in the fillament.\r\n\r\nProblem 2: Tall skirts don't like to stay on the bed for the whole print. This is caused by two things, I think. First, the skirt is very thin on the bottom unless you a large number of loops, and even then, with ABS-like materials, this results in shrinkage pulling it off the bed. To solve this, I would implement a first-layer skirt loops option that effectively gives the skirt a brim. The second issue with skirt-bed adhesion I am experiencing is with the multi-material first layer skirt. I understand the want/need to build pressure by generating a skirt loop with the second extruder on the first layer, but when using a different material, like Ninjaflex, in my case, the second layer skirt doesn't want to stick to it very well. I would solve this by always putting the non-skirt-extruder material in an additional loop outside where the skirt will print on the next layer."},"comment":{"url":"https://api.github.com/repos/alexrj/Slic3r/issues/comments/70039162","html_url":"https://github.com/alexrj/Slic3r/issues/2544#issuecomment-70039162","issue_url":"https://api.github.com/repos/alexrj/Slic3r/issues/2544","id":70039162,"user":{"login":"sirkha","id":2826011,"avatar_url":"https://avatars.githubusercontent.com/u/2826011?v=3","gravatar_id":"","url":"https://api.github.com/users/sirkha","html_url":"https://github.com/sirkha","followers_url":"https://api.github.com/users/sirkha/followers","following_url":"https://api.github.com/users/sirkha/following{/other_user}","gists_url":"https://api.github.com/users/sirkha/gists{/gist_id}","starred_url":"https://api.github.com/users/sirkha/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/sirkha/subscriptions","organizations_url":"https://api.github.com/users/sirkha/orgs","repos_url":"https://api.github.com/users/sirkha/repos","events_url":"https://api.github.com/users/sirkha/events{/privacy}","received_events_url":"https://api.github.com/users/sirkha/received_events","type":"User","site_admin":false},"created_at":"2015-01-15T04:41:34Z","updated_at":"2015-01-15T04:41:34Z","body":"I am having both these problems with slic3r version 1.2.0 through 1.2.5:"}}