{"action":"created","issue":{"url":"https://api.github.com/repos/lamplc/backlash-compensation-grbl-feature/issues/1","repository_url":"https://api.github.com/repos/lamplc/backlash-compensation-grbl-feature","labels_url":"https://api.github.com/repos/lamplc/backlash-compensation-grbl-feature/issues/1/labels{/name}","comments_url":"https://api.github.com/repos/lamplc/backlash-compensation-grbl-feature/issues/1/comments","events_url":"https://api.github.com/repos/lamplc/backlash-compensation-grbl-feature/issues/1/events","html_url":"https://github.com/lamplc/backlash-compensation-grbl-feature/issues/1","id":233878548,"number":1,"title":"How to do that?","user":{"login":"lamplc","id":29228928,"avatar_url":"https://avatars2.githubusercontent.com/u/29228928?v=3","gravatar_id":"","url":"https://api.github.com/users/lamplc","html_url":"https://github.com/lamplc","followers_url":"https://api.github.com/users/lamplc/followers","following_url":"https://api.github.com/users/lamplc/following{/other_user}","gists_url":"https://api.github.com/users/lamplc/gists{/gist_id}","starred_url":"https://api.github.com/users/lamplc/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/lamplc/subscriptions","organizations_url":"https://api.github.com/users/lamplc/orgs","repos_url":"https://api.github.com/users/lamplc/repos","events_url":"https://api.github.com/users/lamplc/events{/privacy}","received_events_url":"https://api.github.com/users/lamplc/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":23,"created_at":"2017-06-06T12:40:38Z","updated_at":"2017-06-08T06:59:20Z","closed_at":null,"body":"I have searched on the internet but could' t find a solution for backlash compensation for grbl. I have access to a 3 axis machine with ball srew axis but without the ability to adjust the nuts to tighten them so i  have backlash of 0.05 to 0.08mm. The machine has got servo drives instead of steppers and originally has digital handwheels. I can switch between the orginal hand wheels and my own produced cnc adapter pcb with an arduino mega as cnc driver. I have tightened the belt from the servo drive to the spindel , tightened the pulley on the axis and on the servo drive and eliminated the gap between the too big pulley keyhole and the key on driven/drive axle. So from my opinion the backlash can now only come from the ball screw and its nut and i can' t change anything on that or replace the nut with two spring loaded nuts as anti backlash nut because the machine is owned by our University. All changes i did so far on the machine where adjustments or could be undone if the University wants that. The only possible way is to do it with software. I have seen a post of quangvi that he has done that, does anyone have that grbl 1.0 code he can share or will you quangvi share that working code?"},"comment":{"url":"https://api.github.com/repos/lamplc/backlash-compensation-grbl-feature/issues/comments/307016826","html_url":"https://github.com/lamplc/backlash-compensation-grbl-feature/issues/1#issuecomment-307016826","issue_url":"https://api.github.com/repos/lamplc/backlash-compensation-grbl-feature/issues/1","id":307016826,"user":{"login":"quangvi","id":13692119,"avatar_url":"https://avatars0.githubusercontent.com/u/13692119?v=3","gravatar_id":"","url":"https://api.github.com/users/quangvi","html_url":"https://github.com/quangvi","followers_url":"https://api.github.com/users/quangvi/followers","following_url":"https://api.github.com/users/quangvi/following{/other_user}","gists_url":"https://api.github.com/users/quangvi/gists{/gist_id}","starred_url":"https://api.github.com/users/quangvi/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/quangvi/subscriptions","organizations_url":"https://api.github.com/users/quangvi/orgs","repos_url":"https://api.github.com/users/quangvi/repos","events_url":"https://api.github.com/users/quangvi/events{/privacy}","received_events_url":"https://api.github.com/users/quangvi/received_events","type":"User","site_admin":false},"created_at":"2017-06-08T06:59:20Z","updated_at":"2017-06-08T06:59:20Z","body":"i will not time for post backlash to arduino UNO, if you want , you can see my code and post is to your board arduino UNO\r\n"}}
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