{"action":"created","issue":{"url":"https://api.github.com/repos/gnea/grbl/issues/318","repository_url":"https://api.github.com/repos/gnea/grbl","labels_url":"https://api.github.com/repos/gnea/grbl/issues/318/labels{/name}","comments_url":"https://api.github.com/repos/gnea/grbl/issues/318/comments","events_url":"https://api.github.com/repos/gnea/grbl/issues/318/events","html_url":"https://github.com/gnea/grbl/issues/318","id":280804122,"number":318,"title":"how to control servo motor speed","user":{"login":"bijlevel","id":11859363,"avatar_url":"https://avatars3.githubusercontent.com/u/11859363?v=4","gravatar_id":"","url":"https://api.github.com/users/bijlevel","html_url":"https://github.com/bijlevel","followers_url":"https://api.github.com/users/bijlevel/followers","following_url":"https://api.github.com/users/bijlevel/following{/other_user}","gists_url":"https://api.github.com/users/bijlevel/gists{/gist_id}","starred_url":"https://api.github.com/users/bijlevel/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bijlevel/subscriptions","organizations_url":"https://api.github.com/users/bijlevel/orgs","repos_url":"https://api.github.com/users/bijlevel/repos","events_url":"https://api.github.com/users/bijlevel/events{/privacy}","received_events_url":"https://api.github.com/users/bijlevel/received_events","type":"User","site_admin":false},"labels":[{"id":446351625,"url":"https://api.github.com/repos/gnea/grbl/labels/enhancement","name":"enhancement","color":"84b6eb","default":true}],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":2,"created_at":"2017-12-10T12:04:26Z","updated_at":"2017-12-11T18:29:21Z","closed_at":null,"author_association":"NONE","body":"I'm using the software with a 4xiDraw plotter (drawing machine). It works perfectly, except the high speed of the servo motor causes the plotter pen to bump quit hard on the surface, which causes unwanted line artifacts. I know I can control the amount of rotation with a M3 Sxx command, but that only controls the distance of the pen from the drawing surface, not the downward or upward speed. How do I accomplish to control this speed, if even possible? Thanks in advance!\r\n\r\nKind regards,\r\nSjoerd"},"comment":{"url":"https://api.github.com/repos/gnea/grbl/issues/comments/350813847","html_url":"https://github.com/gnea/grbl/issues/318#issuecomment-350813847","issue_url":"https://api.github.com/repos/gnea/grbl/issues/318","id":350813847,"user":{"login":"bijlevel","id":11859363,"avatar_url":"https://avatars3.githubusercontent.com/u/11859363?v=4","gravatar_id":"","url":"https://api.github.com/users/bijlevel","html_url":"https://github.com/bijlevel","followers_url":"https://api.github.com/users/bijlevel/followers","following_url":"https://api.github.com/users/bijlevel/following{/other_user}","gists_url":"https://api.github.com/users/bijlevel/gists{/gist_id}","starred_url":"https://api.github.com/users/bijlevel/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bijlevel/subscriptions","organizations_url":"https://api.github.com/users/bijlevel/orgs","repos_url":"https://api.github.com/users/bijlevel/repos","events_url":"https://api.github.com/users/bijlevel/events{/privacy}","received_events_url":"https://api.github.com/users/bijlevel/received_events","type":"User","site_admin":false},"created_at":"2017-12-11T18:29:20Z","updated_at":"2017-12-11T18:29:20Z","author_association":"NONE","body":"@chamnit: thanks anyway, maybe there is a solution via the hardware.\r\n@X3msnake: I'm using a CNC Shield For Arduino (GRBL Compatible), mounted on an Arduino Uno. The servo motor (just one) is connected to the Z+ of the end stops (X+, X-, Y+, Y-, Z+, Z-). The servo type is SG90 RC Micro Servo. Follow the link for a picture of the shield:[http://store.thingibox.com/en/electrical/196-cnc_shield.html](url)"}}
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