{"action":"opened","issue":{"url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/2365","labels_url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/2365/labels{/name}","comments_url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/2365/comments","events_url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/2365/events","html_url":"https://github.com/MarlinFirmware/Marlin/issues/2365","id":92782538,"number":2365,"title":"Servo should be turned off when performing z axis move during bed autoleveling (G29)","user":{"login":"foulowl","id":2752744,"avatar_url":"https://avatars.githubusercontent.com/u/2752744?v=3","gravatar_id":"","url":"https://api.github.com/users/foulowl","html_url":"https://github.com/foulowl","followers_url":"https://api.github.com/users/foulowl/followers","following_url":"https://api.github.com/users/foulowl/following{/other_user}","gists_url":"https://api.github.com/users/foulowl/gists{/gist_id}","starred_url":"https://api.github.com/users/foulowl/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/foulowl/subscriptions","organizations_url":"https://api.github.com/users/foulowl/orgs","repos_url":"https://api.github.com/users/foulowl/repos","events_url":"https://api.github.com/users/foulowl/events{/privacy}","received_events_url":"https://api.github.com/users/foulowl/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-07-03T03:28:13Z","updated_at":"2015-07-03T03:28:13Z","closed_at":null,"body":"Hi folks,\r\n\r\nCurrently the block diagram for bed autoleveling is as follows: (for each of the four points)\r\nLower arm -> lower z axis until switch hit -> record data -> raise z axis -> raise arm\r\n\r\nThe downside of this is that my servo arm skips around roughly +-5 degrees during any axis moves. Discussion on #reprap IRC channel states this servo skipping is a known issue.\r\n\r\nA better procedure would be:\r\nTurn servo on -> lower arm -> turn servo off -> lower z axis until switch hit -> record data -> raise z axis -> turn servo on -> raise arm -> turn servo off\r\n\r\nThanks!\r\n\r\n(As an item of note, I have a RAMPS 1.4 board.)"}}