{"action":"created","issue":{"url":"https://api.github.com/repos/grbl/grbl/issues/616","labels_url":"https://api.github.com/repos/grbl/grbl/issues/616/labels{/name}","comments_url":"https://api.github.com/repos/grbl/grbl/issues/616/comments","events_url":"https://api.github.com/repos/grbl/grbl/issues/616/events","html_url":"https://github.com/grbl/grbl/issues/616","id":59714025,"number":616,"title":"Hard limits v0.9g","user":{"login":"markbotics","id":11265657,"avatar_url":"https://avatars.githubusercontent.com/u/11265657?v=3","gravatar_id":"","url":"https://api.github.com/users/markbotics","html_url":"https://github.com/markbotics","followers_url":"https://api.github.com/users/markbotics/followers","following_url":"https://api.github.com/users/markbotics/following{/other_user}","gists_url":"https://api.github.com/users/markbotics/gists{/gist_id}","starred_url":"https://api.github.com/users/markbotics/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/markbotics/subscriptions","organizations_url":"https://api.github.com/users/markbotics/orgs","repos_url":"https://api.github.com/users/markbotics/repos","events_url":"https://api.github.com/users/markbotics/events{/privacy}","received_events_url":"https://api.github.com/users/markbotics/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":11,"created_at":"2015-03-03T22:07:37Z","updated_at":"2015-03-15T00:08:41Z","closed_at":null,"body":"Hello, I am experiencing a situation where it goes instantly into alarm mode \"ALARM: Hard/soft limit\" whenever I try to do a move, once I turn hard limits on with $21=1.\r\n\r\nThe machine is definitely away from the limit switches.  And the limit switches are used for successful homing, which confirms I believe the digital inputs to the machine.  I can home (\"$h\") and the machine properly goes through the homing sequence, including the backing off by the amount in $27 (\"Homing pull-off\").  To be extra sure I move the machine clearly in the middle from all switches and enable $21=1 and it goes into alarm mode.  \r\n\r\nA voltmeter confirms the three pins are at 5V.  All three limit inputs are definitely high, extra strong 1K pullup resistors on 'Limit X-axis',  'Limit Y-axis', and  'Limit Z-axis' pins.\r\n\r\nI have v0.9c.\r\n\r\nThanks if you can help.\r\n"},"comment":{"url":"https://api.github.com/repos/grbl/grbl/issues/comments/80768298","html_url":"https://github.com/grbl/grbl/issues/616#issuecomment-80768298","issue_url":"https://api.github.com/repos/grbl/grbl/issues/616","id":80768298,"user":{"login":"Dikabro","id":10909354,"avatar_url":"https://avatars.githubusercontent.com/u/10909354?v=3","gravatar_id":"","url":"https://api.github.com/users/Dikabro","html_url":"https://github.com/Dikabro","followers_url":"https://api.github.com/users/Dikabro/followers","following_url":"https://api.github.com/users/Dikabro/following{/other_user}","gists_url":"https://api.github.com/users/Dikabro/gists{/gist_id}","starred_url":"https://api.github.com/users/Dikabro/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Dikabro/subscriptions","organizations_url":"https://api.github.com/users/Dikabro/orgs","repos_url":"https://api.github.com/users/Dikabro/repos","events_url":"https://api.github.com/users/Dikabro/events{/privacy}","received_events_url":"https://api.github.com/users/Dikabro/received_events","type":"User","site_admin":false},"created_at":"2015-03-15T00:08:41Z","updated_at":"2015-03-15T00:08:41Z","body":"Ok. So at first I will try to add some filtering caps and then will post my test results. :) "}}