{"action":"created","issue":{"url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/9574","repository_url":"https://api.github.com/repos/MarlinFirmware/Marlin","labels_url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/9574/labels{/name}","comments_url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/9574/comments","events_url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/9574/events","html_url":"https://github.com/MarlinFirmware/Marlin/issues/9574","id":296135800,"number":9574,"title":"Z is Negative after G29 Autoleveling","user":{"login":"Jeepguy42","id":6774354,"avatar_url":"https://avatars0.githubusercontent.com/u/6774354?v=4","gravatar_id":"","url":"https://api.github.com/users/Jeepguy42","html_url":"https://github.com/Jeepguy42","followers_url":"https://api.github.com/users/Jeepguy42/followers","following_url":"https://api.github.com/users/Jeepguy42/following{/other_user}","gists_url":"https://api.github.com/users/Jeepguy42/gists{/gist_id}","starred_url":"https://api.github.com/users/Jeepguy42/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Jeepguy42/subscriptions","organizations_url":"https://api.github.com/users/Jeepguy42/orgs","repos_url":"https://api.github.com/users/Jeepguy42/repos","events_url":"https://api.github.com/users/Jeepguy42/events{/privacy}","received_events_url":"https://api.github.com/users/Jeepguy42/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":13,"created_at":"2018-02-10T21:31:42Z","updated_at":"2018-02-13T14:50:24Z","closed_at":null,"author_association":"NONE","body":"### Bug Report\r\n- Description: after Home X Y and Z axis I run a G29 to run the autoleveling before printing. After the G29 runz, Z says its at -37 (+ or - .2mm). This means when it goes to Z0 it prints in the air. I've tried adjusting Z probe offset any it doesn't correct the problem. If I change the distance clearance between probes it does change the -37 by the amount I change it.\r\n- Expected behavior: Home Z and then running G29 should level the bed but after leveling the probe should sit at roughly at Z5 (Z_CLEARANCE_BETWEEN_PROBES)\r\n- Actual behavior: after auto leveling the Z thinks its @ -37\r\n\r\n\r\nI'm new to this but their aren't really logs on what to do when starting from scratch.\r\n\r\nAttach a ZIP of `Configuration.h` and `Configuration_adv.h` by dropping here.\r\n[Marlin Files.zip](https://github.com/MarlinFirmware/Marlin/files/1713770/Marlin.Files.zip)\r\n\r\n\r\n------------------------------------------------------------\r\n### Bug Report Tips\r\n- When troubleshooting, use `M502` followed by `M500` to reset EEPROM to defaults.\r\n- Use `DEBUG_LEVELING_FEATURE` with `M111 S247` for detailed logging of homing/leveling.\r\n- Format text with: **bold**, _italic_, `code`.\r\n- Format C++ with three backticks, plus \"cpp\":\r\n```cpp\r\nvoid my_function(bool do_it) {\r\n  // Hold this spot\r\n}\r\n```\r\n"},"comment":{"url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/comments/365289141","html_url":"https://github.com/MarlinFirmware/Marlin/issues/9574#issuecomment-365289141","issue_url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/9574","id":365289141,"user":{"login":"Roxy-3D","id":8404322,"avatar_url":"https://avatars0.githubusercontent.com/u/8404322?v=4","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":"2018-02-13T14:50:24Z","updated_at":"2018-02-13T14:50:24Z","author_association":"OWNER","body":"M502 followed by M500."}}
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