{"action":"created","issue":{"url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/5147","repository_url":"https://api.github.com/repos/MarlinFirmware/Marlin","labels_url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/5147/labels{/name}","comments_url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/5147/comments","events_url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/5147/events","html_url":"https://github.com/MarlinFirmware/Marlin/issues/5147","id":186901340,"number":5147,"title":"Extruder fan not starting as the extruder heats up","user":{"login":"mperdue","id":943169,"avatar_url":"https://avatars.githubusercontent.com/u/943169?v=3","gravatar_id":"","url":"https://api.github.com/users/mperdue","html_url":"https://github.com/mperdue","followers_url":"https://api.github.com/users/mperdue/followers","following_url":"https://api.github.com/users/mperdue/following{/other_user}","gists_url":"https://api.github.com/users/mperdue/gists{/gist_id}","starred_url":"https://api.github.com/users/mperdue/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mperdue/subscriptions","organizations_url":"https://api.github.com/users/mperdue/orgs","repos_url":"https://api.github.com/users/mperdue/repos","events_url":"https://api.github.com/users/mperdue/events{/privacy}","received_events_url":"https://api.github.com/users/mperdue/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":3,"created_at":"2016-11-02T19:45:08Z","updated_at":"2016-11-03T00:35:04Z","closed_at":null,"body":"I'm having trouble getting the extruder fan to run when the extruder heats up.\r\n\r\nI have the following entries in `Configuration_adv.h`\r\n```cpp\r\n#define E0_AUTO_FAN_PIN -1\r\n#define E1_AUTO_FAN_PIN -1\r\n#define E2_AUTO_FAN_PIN -1\r\n#define E3_AUTO_FAN_PIN -1\r\n#define EXTRUDER_AUTO_FAN_TEMPERATURE 50\r\n#define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed\r\n```\r\nwhich would seem to indicate that the fan should start at full speed when the temperature hits 50c but it does not.\r\n\r\nin the file `pins_AZTEEG_X3_Pro.h` I have\r\n```cpp\r\n// Fans/Water Pump to cool the hotend cool side.\r\n#define ORIG_E0_AUTO_FAN_PIN 5\r\n#define ORIG_E1_AUTO_FAN_PIN 5\r\n#define ORIG_E2_AUTO_FAN_PIN 5\r\n#define ORIG_E3_AUTO_FAN_PIN 5\r\n```\r\nWhich seems to match the settings in previous versions\r\n\r\nAnyone have any ideas?"},"comment":{"url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/comments/258040495","html_url":"https://github.com/MarlinFirmware/Marlin/issues/5147#issuecomment-258040495","issue_url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/5147","id":258040495,"user":{"login":"thinkyhead","id":698003,"avatar_url":"https://avatars.githubusercontent.com/u/698003?v=3","gravatar_id":"","url":"https://api.github.com/users/thinkyhead","html_url":"https://github.com/thinkyhead","followers_url":"https://api.github.com/users/thinkyhead/followers","following_url":"https://api.github.com/users/thinkyhead/following{/other_user}","gists_url":"https://api.github.com/users/thinkyhead/gists{/gist_id}","starred_url":"https://api.github.com/users/thinkyhead/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/thinkyhead/subscriptions","organizations_url":"https://api.github.com/users/thinkyhead/orgs","repos_url":"https://api.github.com/users/thinkyhead/repos","events_url":"https://api.github.com/users/thinkyhead/events{/privacy}","received_events_url":"https://api.github.com/users/thinkyhead/received_events","type":"User","site_admin":false},"created_at":"2016-11-03T00:35:04Z","updated_at":"2016-11-03T00:35:04Z","body":"@mperdue The defines in `Configuration_adv.h` are _overrides_ of the values from the pins files. Overriding the value and setting it to -1 disables it. To use the default setting (i.e., as set by `ORIG_E0_AUTO_FAN_PIN`) just comment out the definition in `Configuration_adv.h`."}}
{"actor":{"display_login":"thinkyhead"}}