{"action":"created","issue":{"url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/5923","repository_url":"https://api.github.com/repos/MarlinFirmware/Marlin","labels_url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/5923/labels{/name}","comments_url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/5923/comments","events_url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/5923/events","html_url":"https://github.com/MarlinFirmware/Marlin/issues/5923","id":210651959,"number":5923,"title":"UBL issues","user":{"login":"scott1326","id":23708592,"avatar_url":"https://avatars.githubusercontent.com/u/23708592?v=3","gravatar_id":"","url":"https://api.github.com/users/scott1326","html_url":"https://github.com/scott1326","followers_url":"https://api.github.com/users/scott1326/followers","following_url":"https://api.github.com/users/scott1326/following{/other_user}","gists_url":"https://api.github.com/users/scott1326/gists{/gist_id}","starred_url":"https://api.github.com/users/scott1326/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/scott1326/subscriptions","organizations_url":"https://api.github.com/users/scott1326/orgs","repos_url":"https://api.github.com/users/scott1326/repos","events_url":"https://api.github.com/users/scott1326/events{/privacy}","received_events_url":"https://api.github.com/users/scott1326/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2017-02-28T00:38:51Z","updated_at":"2017-02-28T05:05:58Z","closed_at":null,"body":"Tried to get UBL working again today, but I've run into a couple issues.\r\n\r\n1) Config file asks to define one of several z probe variants:  servo, sled, fixed, etc.  You cannot define FIX_MOUNTED_PROBE without getting compile errors, as there is no way to undefine servos.  I tried to put NUM_SERVOS to 0, or to comment it out, but that leads to more define errors.  It will compile if I leave FIX...  undefined, but my machine has a fix mounted induction probe and no servos.\r\n\r\n2) UBL docs clearly state: \r\n     \"If you have too little clearance and not much plastic was extruded in an area, you want to LOWER the Mesh Point at the location.  If you did not get good adheasion, you want to RAISE the Mesh Point at that location.\"\r\n     I have found that to be the exact opposite.  I have to make the mesh points more negative in order to get the hotend closer to the bed (ie, lower Z).\r\n\r\n3) After generating what I think is a valid mesh, and doing several G26 tests to verify, I tried to do a quick calibration print which air-printed several mm above the print bed.\r\n\r\nCheers-\r\n    Scott1326\r\n\r\n\r\n"},"comment":{"url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/comments/282943460","html_url":"https://github.com/MarlinFirmware/Marlin/issues/5923#issuecomment-282943460","issue_url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/5923","id":282943460,"user":{"login":"Roxy-3D","id":8404322,"avatar_url":"https://avatars.githubusercontent.com/u/8404322?v=3","gravatar_id":"","url":"https://api.github.com/users/Roxy-3D","html_url":"https://github.com/Roxy-3D","followers_url":"https://api.github.com/users/Roxy-3D/followers","following_url":"https://api.github.com/users/Roxy-3D/following{/other_user}","gists_url":"https://api.github.com/users/Roxy-3D/gists{/gist_id}","starred_url":"https://api.github.com/users/Roxy-3D/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Roxy-3D/subscriptions","organizations_url":"https://api.github.com/users/Roxy-3D/orgs","repos_url":"https://api.github.com/users/Roxy-3D/repos","events_url":"https://api.github.com/users/Roxy-3D/events{/privacy}","received_events_url":"https://api.github.com/users/Roxy-3D/received_events","type":"User","site_admin":false},"created_at":"2017-02-28T05:05:58Z","updated_at":"2017-02-28T05:05:58Z","body":"> UBL docs clearly state:\r\n> \"If you have too little clearance and not much plastic was extruded in an area, you want to LOWER the\r\n>  Mesh Point at the location. If you did not get good adheasion, you want to RAISE the Mesh Point at \r\n> that location.\"\r\n\r\nYes.   You are correct.   That needs to be changed!\r\n"}}
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