{"id":479,"date":"2013-08-14T14:15:37","date_gmt":"2013-08-14T13:15:37","guid":{"rendered":"http:\/\/biemans.org\/blog\/?p=479"},"modified":"2013-11-11T13:03:14","modified_gmt":"2013-11-11T12:03:14","slug":"delta-robot","status":"publish","type":"post","link":"http:\/\/www.biemans.org\/wp\/?p=479","title":{"rendered":"Delta robot"},"content":{"rendered":"<p>Nu het monitor systeem van de zonnepanelen bijna klaar is, is het weer tijd voor iets nieuws. Het maken van een delta robot lijkt me wel iets.<\/p>\n<p>Ik heb wat servo-motortjes besteld. Nu aan de slag met het mechanische deel: armpjes berekenen-construeren, een montageplaat en wat bal joints.<br \/>\n(Kijk naar dit voorbeeld: <a href=\"http:\/\/www.3ders.org\/articles\/20130409-3d-printed-delta-robot.html\">http:\/\/www.3ders.org\/articles\/20130409-3d-printed-delta-robot.html <\/a>)<\/p>\n<p>Dan de arduino programmeren en op zoek\/aanpassen\/zelf maken software om snel bewegingspatronen te genereren. Zoiets als onder, maar dan met name voor letters\/cijfers schrijven.<\/p>\n<p><!--more--><\/p>\n<p>(En even niet vergeten te kijken naar de teken robot Pythagoras toepassing van Aaron: kijk op<a href=\"http:\/\/blog.aaronbot3000.com\/p\/pythagoras-drawing-delta-robot.html?showComment=1376491413659\" target=\"_blank\"> http:\/\/blog.aaronbot3000.com\/p\/pythagoras-drawing-delta-robot.html?showComment=1376491413659<\/a> )<\/p>\n<p>(from: <a href=\"http:\/\/orangenarwhals.blogspot.nl\/2013_04_01_archive.html\">http:\/\/orangenarwhals.blogspot.nl\/2013_04_01_archive.html<\/a>)<\/p>\n<p>Delta robot face drawing:<br \/>\n<a href=\"http:\/\/jarkman.co.uk\/catalog\/robots\/sketchy.htm\">http:\/\/jarkman.co.uk\/catalog\/robots\/sketchy.htm<\/a><\/p>\n<blockquote><p>The lifecycle goes like this:<br \/>\n&#8211; Pick a picture from the Android photo album<br \/>\n&#8211; Run a\u00a0<a href=\"http:\/\/en.wikipedia.org\/wiki\/Canny_edge_detector\">Canny edge-finder<\/a>\u00a0on it to get to a black bitmap with white lines on the edges of the original picture. I used a\u00a0<a href=\"http:\/\/www.tomgibara.com\/computer-vision\/canny-edge-detector\">splendid implementation by Tom Gibara<\/a>&#8211; Run a vectoriser on that, to generate vectors along those lines. I couldn&#8217;t find one I liked, so I write one, which was easier that I expected.<br \/>\n&#8211; Simplify the vectors &#8211; discard very short vectors, and replace straightish bits with straight lines. The Arduino can only store 300 points, so we have a strong incentive to optimise the vectors to within an inch of their lives.<br \/>\n&#8211; Package the vectors up and send them over Bluetooth to the Arduino<br \/>\n&#8211; Wait for the drawing !<\/p><\/blockquote>\n<blockquote><p>For speed, I&#8217;m working with very low-resolution bitmaps &#8211; 128 pixels square by default.<\/p><\/blockquote>\n<p><a href=\"http:\/\/hackaday.com\/2012\/01\/13\/pythagoras-a-delta-robot-for-drawing\/\">http:\/\/hackaday.com\/2012\/01\/13\/pythagoras-a-delta-robot-for-drawing\/<\/a><br \/>\nvectorizing linked to in\u00a0Sketchy\\src\\com\\jarkman\\sketchy\\Vectoriser.java<br \/>\n<a href=\"http:\/\/cardhouse.com\/computer\/vectcode.htm\">http:\/\/cardhouse.com\/computer\/vectcode.htm<\/a><br \/>\nActual vectoriser code used in sketchy is in<b> VectorWalker.java. TODO: read over and understand this code.<\/b><\/p>\n<p>canny edge detection implementation in processing<br \/>\n<a href=\"http:\/\/stackoverflow.com\/questions\/5827809\/canny-edge-detection-using-processing\">http:\/\/stackoverflow.com\/questions\/5827809\/canny-edge-detection-using-processing<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nu het monitor systeem van de zonnepanelen bijna klaar is, is het weer tijd voor iets nieuws. Het maken van een delta robot lijkt me wel iets. Ik heb wat servo-motortjes besteld. Nu aan de slag met het mechanische deel: &hellip; <a href=\"http:\/\/www.biemans.org\/wp\/?p=479\">Continued<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"kt_blocks_editor_width":"","footnotes":""},"categories":[39],"tags":[],"class_list":["post-479","post","type-post","status-publish","format-standard","hentry","category-arduino"],"_links":{"self":[{"href":"http:\/\/www.biemans.org\/wp\/index.php?rest_route=\/wp\/v2\/posts\/479","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.biemans.org\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.biemans.org\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.biemans.org\/wp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.biemans.org\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=479"}],"version-history":[{"count":10,"href":"http:\/\/www.biemans.org\/wp\/index.php?rest_route=\/wp\/v2\/posts\/479\/revisions"}],"predecessor-version":[{"id":489,"href":"http:\/\/www.biemans.org\/wp\/index.php?rest_route=\/wp\/v2\/posts\/479\/revisions\/489"}],"wp:attachment":[{"href":"http:\/\/www.biemans.org\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=479"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.biemans.org\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=479"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.biemans.org\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=479"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}