{"action":"closed","issue":{"url":"https://api.github.com/repos/alexrj/Slic3r/issues/1544","repository_url":"https://api.github.com/repos/alexrj/Slic3r","labels_url":"https://api.github.com/repos/alexrj/Slic3r/issues/1544/labels{/name}","comments_url":"https://api.github.com/repos/alexrj/Slic3r/issues/1544/comments","events_url":"https://api.github.com/repos/alexrj/Slic3r/issues/1544/events","html_url":"https://github.com/alexrj/Slic3r/issues/1544","id":23045658,"number":1544,"title":"Out of bound moves for circular build plate","user":{"login":"mrbi11","id":5921662,"avatar_url":"https://avatars.githubusercontent.com/u/5921662?v=3","gravatar_id":"","url":"https://api.github.com/users/mrbi11","html_url":"https://github.com/mrbi11","followers_url":"https://api.github.com/users/mrbi11/followers","following_url":"https://api.github.com/users/mrbi11/following{/other_user}","gists_url":"https://api.github.com/users/mrbi11/gists{/gist_id}","starred_url":"https://api.github.com/users/mrbi11/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mrbi11/subscriptions","organizations_url":"https://api.github.com/users/mrbi11/orgs","repos_url":"https://api.github.com/users/mrbi11/repos","events_url":"https://api.github.com/users/mrbi11/events{/privacy}","received_events_url":"https://api.github.com/users/mrbi11/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/alexrj/Slic3r/labels/Needs%20more%20info","name":"Needs more info","color":"0b02e1"},{"url":"https://api.github.com/repos/alexrj/Slic3r/labels/Needs%20test%20STL%20file","name":"Needs test STL file","color":"0b02e1"}],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":12,"created_at":"2013-11-21T05:26:12Z","updated_at":"2016-08-17T01:50:30Z","closed_at":"2016-08-17T01:50:30Z","body":"Am testing rostoc max to see how big a circle can be printed, it is supposed to do 140mm.\r\nTests manually show it can only handle 138mm radius moves.\r\nattached file is .stl of circle from 136 to 138mm inner/outer radius.\r\nsettings turn off brim and skirt.\r\n\r\nThe printer size is set to 276 by 276, but as you know this is a round printer.\r\nStill, there should be no moves beyond 138,\r\nActually sqrt (x^2+y^2) should be less than 138.\r\nWhich is why i turned brim and skirt off.\r\n\r\nAfter half a circle, slicr generates these mostly out of bound moves:\r\nG1 Z1.500\r\nG1 X70.470 Y-122.133\r\nG1 X51.550 Y-131.245\r\nG1 X31.340 Y-137.479\r\nG1 X10.500 Y-140.614\r\nG1 X-10.500 Y-140.614\r\nG1 X-31.413 Y-137.462\r\nG1 X-51.480 Y-131.272\r\nG1 X-58.519 Y-127.889\r\nG1 X-70.536 Y-122.095\r\nG1 X-68.719 Y-117.323\r\nG1 Z0.500\r\n\r\nThe center moves crash the Z axis (Y Cartesian axis) \r\ncarriage into the base of the unit.\r\nThis gets the position off, and it starts printing in the air in the wrong x-y coordinates.\r\n\r\nIt appears these moves backtrack the print moves several mm outside the print.\r\nThey could simply move to the next coordinate, so i am assuming this is due to the don't cross perimeters setting.\r\n\r\nI also had rafting on, so it appears to be laying down a raft layer first.\r\n\r\nAnyway, quite startling when the printer starts banging into itself.\r\n\r\nI'd also assume the arduino controller code would limit moves here,\r\nand will be checking settings and code there.\r\n\r\nI dont see how to upload the .stl file. I will try to email it, but if i fail\r\n\r\nplease email me at b k 6 at m e\r\ndot com\r\n\r\nalso, i am happy to review the code to see if i can determine a fix, if you can point me to the right module or something, assuming you would like me to."}}
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