{"id":163,"date":"2014-09-25T23:28:02","date_gmt":"2014-09-25T21:28:02","guid":{"rendered":"http:\/\/chaosgeordend.nl\/wordpress\/?p=163"},"modified":"2020-11-17T19:01:19","modified_gmt":"2020-11-17T18:01:19","slug":"reprap-mendel-hot-end-tuning","status":"publish","type":"post","link":"https:\/\/www.chaosgeordend.nl\/wordpress\/2014\/09\/25\/reprap-mendel-hot-end-tuning\/","title":{"rendered":"RepRap Mendel hot-end tuning"},"content":{"rendered":"<div id=\"entry_img\"><a href=\"https:\/\/www.chaosgeordend.nl\/mt-blog-cg\/images\/MendelHotendSample1.png\" rel=\"lightbox[163]\"><br \/>\n<img decoding=\"async\" src=\"https:\/\/www.chaosgeordend.nl\/mt-blog-cg\/images\/thumbnails\/MendelHotendSample1.png\" alt=\"Hot-end Temperature graph\" \/><\/a><\/div>\n<p>Tuning the Mendel hot-end, using a <a href=\"https:\/\/www.tcl.tk\">Tcl\/Tk<\/a> script for temperature sampling. The firmware used is <a href=\"https:\/\/github.com\/MarlinFirmware\/Marlin\">Marlin<\/a> v1 on Arduino 1.3.<\/p>\n<p><!--more--><\/p>\n<div id=\"entry_img\"><a href=\"https:\/\/www.chaosgeordend.nl\/mt-blog-cg\/images\/MendelHotendSample2.png\" rel=\"lightbox[163]\"><br \/>\n<img decoding=\"async\" src=\"https:\/\/www.chaosgeordend.nl\/mt-blog-cg\/images\/thumbnails\/MendelHotendSample2.png\" alt=\"Hot-end Temperature graph\" \/><\/a><\/div>\n<p>The <a href=\"https:\/\/www.chaosgeordend.nl\/documents\/SampleTemp.tcl\">Tcl script<\/a> on OS X connects to the Arduino over USB. The original script was taken from a <a href=\"https:\/\/www.buildlog.net\/forum\/viewtopic.php?f=16&#038;t=1256&#038;start=50\">buildlog.net<\/a> post.<\/p>\n<p>Example plot command in an interactive gnuplot session, which allows for mouse zooming:<\/p>\n<pre lang=\"shell\">\r\n$ export GNUTERM=x11 # allow interactive zooming (which Aquaterm does not support)\r\n$ gnuplot\r\ngnuplot> plot \".\/Temperatures.txt\" using 1:2:(1\/50.) with lines linecolor rgb \"red\" linewidth 3 smooth acsplines 2 notitle\r\ngnuplot> quit\r\n<\/pre>\n<p>The PID settings were derived with the <a href=\"https:\/\/reprap.org\/wiki\/PID_Tuning\" title=\"Marlin autotune\">Marlin autotune<\/a> option. FWIW, these are the parameters for my home-made Mendel hot-end:<\/p>\n<pre lang=\"shell\">\r\n    #define  DEFAULT_Kp 56.46\r\n    #define  DEFAULT_Ki 4.14\r\n    #define  DEFAULT_Kd 192.40\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Tuning the Mendel hot-end, using a Tcl\/Tk script for temperature sampling. The firmware used is Marlin v1 on Arduino 1.3.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[43,24,51],"tags":[],"class_list":["post-163","post","type-post","status-publish","format-standard","hentry","category-arduino","category-reprap","category-tcltk"],"_links":{"self":[{"href":"https:\/\/www.chaosgeordend.nl\/wordpress\/wp-json\/wp\/v2\/posts\/163","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.chaosgeordend.nl\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.chaosgeordend.nl\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.chaosgeordend.nl\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.chaosgeordend.nl\/wordpress\/wp-json\/wp\/v2\/comments?post=163"}],"version-history":[{"count":25,"href":"https:\/\/www.chaosgeordend.nl\/wordpress\/wp-json\/wp\/v2\/posts\/163\/revisions"}],"predecessor-version":[{"id":581,"href":"https:\/\/www.chaosgeordend.nl\/wordpress\/wp-json\/wp\/v2\/posts\/163\/revisions\/581"}],"wp:attachment":[{"href":"https:\/\/www.chaosgeordend.nl\/wordpress\/wp-json\/wp\/v2\/media?parent=163"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.chaosgeordend.nl\/wordpress\/wp-json\/wp\/v2\/categories?post=163"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.chaosgeordend.nl\/wordpress\/wp-json\/wp\/v2\/tags?post=163"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}