{"id":937,"date":"2014-12-12T16:03:07","date_gmt":"2014-12-12T22:03:07","guid":{"rendered":"http:\/\/www.ethnosync.com\/?p=937"},"modified":"2021-01-13T13:53:00","modified_gmt":"2021-01-13T19:53:00","slug":"rostock-mini-with-beaglebone-black-rev-c-linuxcnc","status":"publish","type":"post","link":"https:\/\/www.ethnosync.com\/?p=937","title":{"rendered":"Rostock Mini with Beaglebone Black Rev. C &#038; LinuxCNC"},"content":{"rendered":"\n<p><iframe loading=\"lazy\" width=\"640\" height=\"390\" src=\"\/\/www.youtube.com\/embed\/Wn7zbvZ16cI\" frameborder=\"0\" allowfullscreen=\"\"><\/iframe><\/p>\n<p>The cost of build is <strong>~$550, prices with taxes and shipping included<\/strong>. Folger Tech is selling a Kossel Mini for $399 which can also be upgraded to Beaglebone \/ LinuxCNC  <a href=\"http:\/\/shop.folgertechnologies.com\/collections\/frontpage\/products\/folger-tech-kossel-2020-full-3d-printer-kit\">as shown here<\/a> for a few dollars more.<\/p>\n<p><strong>BOM is as follows, proceed at your own risk:<\/strong><br \/>\n<!--more--><\/p>\n<ul>\n<li>Kit for most of the components: <a href=\"http:\/\/www.ebay.com\/itm\/291321936358\">ebay (from here)<\/a>: $175.00.<\/li>\n<li>Cork motor isolators: <a href=\"http:\/\/www.ebay.com\/itm\/331199614874?_trksid=p2059210.m2749.l2649&amp;ssPageName=STRK%3AMEBIDX%3AIT\">ebay (from here)<\/a>: $5.98.<\/li>\n<li>Sorbothane feet <a href=\"http:\/\/www.ebay.com\/itm\/250446829882?_trksid=p2059210.m2749.l2649&amp;ssPageName=STRK%3AMEBIDX%3AIT\">ebay (from here)<\/a>: $8.49. (Installed one centered under each motor.)<\/li>\n<li>Screws and bolts: <a href=\"http:\/\/BoltDepot.com\">BoltDepot.com<\/a>: $23.29. You can use the screw list <a href=\"http:\/\/reprap.org\/wiki\/Rostock_mini#Hardware\">here<\/a> as a starting point, but most screws need length &amp; quantity modification for the $175 kit.<\/li>\n<li>Direct order the following from <a href=\"http:\/\/shop.folgertechnologies.com\">Folger Tech<\/a>: $122.24:<br \/>\n&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<br \/>\nQty | Item #| Description<br \/>\n&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<br \/>\n6 | #000299 | LM8UU (<strong>Optional<\/strong> as the $175 kit can upgrade to this for free on request)<br \/>\n4 | #000276 | NEMA 17 4800g\/cm with wires 70 cm<br \/>\n1 | #000357 | 1.75mm All Metal J-Head (Bowden Style)<br \/>\n4 | #000252 | A4988 Driver \/ Heat Sink (Older, cheaper, &amp; works just fine)<br \/>\n1 | #000231 | 1.75 \/ PTFE \/ 2meters<br \/>\n1 | #000351 | Fan<br \/>\n1 | #000355 | 0.5mm Nozzle (<strong>Optional<\/strong> as the J-Head comes with \u22050.3mm)<\/li>\n<li>MK8 Drive Gear <a href=\"http:\/\/www.ebay.com\/itm\/331171373881?_trksid=p2059210.m2749.l2649&amp;ssPageName=STRK%3AMEBIDX%3AIT\">(Folger Tech ebay store) (from here)<\/a>: $5.99. (Needed as the MK7 included in the $175 kit needs marginally more torque than the selected motor can provide.)<\/li>\n<li> Acrylic Frame: <a href=\"http:\/\/www.makerfarm.com\/index.php\/rostock-mini-laser-cut-frame.html\">MakerFarm<\/a>: $30.00. This is the <strong>Mini<\/strong> frame. Comes with an acrylic J-Head holder, which you will need. If building full size, source elsewhere.<\/li>\n<li>Beaglebone Cape (CRAMPS): <a href=\"http:\/\/pico-systems.com\/osc2.5\/catalog\/product_info.php?products_id=35\">Pico Systems<\/a>: $87.50.<\/li>\n<li>Beaglebone Black Rec C: <a href=\"http:\/\/www.adafruit.com\/products\/1876\">Adafruit<\/a>: $64.47.<\/li>\n<li>6 x \u215b&#8221; rubber grommets radially cut in half for silencing the motors and misc. nuts and bolts: local Ace Hardware $10.43.<\/li>\n<li>7&#8243; round mirror: <a href=\"http:\/\/www.ebay.com\/itm\/Darice-Round-Glass-Mirror-7-\/390967738791?\">ebay (from here)<\/a>: $4.23.<\/li>\n<li>7&#8243; round cork board: local Michael&#8217;s $1.00.<\/li>\n<li>Spiral wire guard: local HomeDepot $3.26.<\/li>\n<li>Power supply: I recycled an old PC power supply, for free. Any $20+ PC power supply should do. Instructions on how to trip it on for use outside of a PC are abundantly available on the internet, generally referred to as a &#8220;paper clip test&#8221;. I recommend using proper wiring.<\/li>\n<\/ul>\n<p><strong>Optional<\/strong><\/p>\n<ul>\n<li>Additional limit switches with easier to remove levers: <a href=\"http:\/\/www.ebay.com\/itm\/3x-Mechanical-micro-snap-action-limit-switch-end-stop-screws-reprap-3D-printer-\/331352774012?nma=true&amp;si=mehjFcYu4QpxcSdxbE1fNspe50c%253D&amp;orig_cvip=true&amp;rt=nc&amp;_trksid=p2047675.l2557\">ebay (from here)<\/a>: $6.45.<\/li>\n<li>Connectors (saves crimping, but requires cutting and soldering): <a href=\"http:\/\/www.ebay.com\/itm\/171303931847?_trksid=p2059210.m2749.l2649&amp;ssPageName=STRK%3AMEBIDX%3AIT\">ebay (from here)<\/a>: $3.89.<\/li>\n<li>Calipers: <a href=\"http:\/\/www.ebay.com\/itm\/171444089106?_trksid=p2059210.m2749.l2649&amp;ssPageName=STRK%3AMEBIDX%3AIT\">ebay (from here)<\/a>: $10.00. Nice to have.<\/li>\n<li>Micro HDMI cable for Beaglebone: <a href=\"http:\/\/www.monoprice.com\/Product?c_id=102&amp;cp_id=10253&amp;cs_id=1025301&amp;p_id=7557&amp;seq=1&amp;format=2\">Monoprice<\/a>: $8.00. Not needed unless you are doing development.<\/li>\n<\/ul>\n<p><img decoding=\"async\" style=\"float: none; margin: 0px 10px;\" src=\"http:\/\/ethnosync.com\/files\/rostock\/rostock1.jpg\" alt=\"detail\" width=\"640\"><\/p>\n<p><img decoding=\"async\" style=\"float: none; margin: 0px 10px;\" src=\"http:\/\/ethnosync.com\/files\/rostock\/rostock2.jpg\" alt=\"detail\" width=\"640\"><\/p>\n<p><img decoding=\"async\" style=\"float: none; margin: 0px 10px;\" src=\"http:\/\/ethnosync.com\/files\/rostock\/rostock3.jpg\" alt=\"detail\" width=\"640\"><\/p>\n<p><img decoding=\"async\" style=\"float: none; margin: 0px 10px;\" src=\"http:\/\/ethnosync.com\/files\/rostock\/rostock4.jpg\" alt=\"detail\" width=\"640\"><\/p>\n<p><img decoding=\"async\" style=\"float: none; margin: 0px 10px;\" src=\"http:\/\/ethnosync.com\/files\/rostock\/rostock5.jpg\" alt=\"detail\" width=\"640\"><\/p>\n<p><img decoding=\"async\" style=\"float: none; margin: 0px 10px;\" src=\"http:\/\/ethnosync.com\/files\/rostock\/rostock6.jpg\" alt=\"detail\" width=\"640\"><\/p>\n<p><img decoding=\"async\" style=\"float: none; margin: 0px 10px;\" src=\"http:\/\/ethnosync.com\/files\/rostock\/rostock7.jpg\" alt=\"detail\" width=\"640\"><\/p>\n<p><img decoding=\"async\" style=\"float: none; margin: 0px 10px;\" src=\"http:\/\/ethnosync.com\/files\/rostock\/rostock8.jpg\" alt=\"detail\" width=\"640\"><\/p>\n<p><strong>Instructions:<\/strong><\/p>\n<ul>\n<li>Initial Setup: CRAMPS BeagleBone cape with MachineKit: <a href=\"https:\/\/designmakeshare.wordpress.com\/2014\/06\/08\/initial-setup-cramps-beaglebone-cape-with-machinekit\/\">here<\/a>.<\/li>\n<li>MachineKit Delta configuration + calibration: <a href=\"https:\/\/designmakeshare.wordpress.com\/2014\/06\/30\/machinekit-delta-configuration-calibration\/\">here<\/a>.<\/li>\n<li>Cape &amp; software: <a href=\"http:\/\/blog.machinekit.io\/p\/machinekit_16.html\">here<\/a>.<\/li>\n<li>Machinekit google group: <a href=\"https:\/\/groups.google.com\/forum\/#!forum\/machinekit\">here<\/a>.<\/li>\n<li>Slicing: <a href=\"http:\/\/blog.machinekit.io\/2013\/07\/slicing-for-linuxcnc.html\">here<\/a>.<\/li>\n<\/ul>\n<p><strong>Rapid Prototyped Parts Once Running<\/strong><\/p>\n<ul>\n<li>Bracket: <a href=\"http:\/\/www.thingiverse.com\/thing:536730\">for extruder<\/a>.<\/li>\n<li>Bracket: <a href=\"http:\/\/www.thingiverse.com\/thing:534266\">for Beaglebone<\/a>.<\/li>\n<li>Tabs holding mirror: <a href=\"http:\/\/ethnosync.com\/files\/rostock\/Tab_b3.stl\">STL file<\/a>.<\/li>\n<\/ul>\n<p><strong>Machinekit \/ LinuxCNC Setup<\/strong><\/p>\n<p>Custom files: <a href=\"http:\/\/ethnosync.com\/files\/rostock\/LinuxCNC-Machinekit-files.zip\">for LinuxCNC Rostock Delta configuration<\/a>.<\/p>\n<p><strong>To Get The Fan &amp; The LED Working:<\/strong><\/p>\n<p>In my setup:<\/p>\n<ul>\n<li>CRAMPS FET5 is the fan<\/li>\n<li>CRAMPS FET6 is the LED<\/li>\n<\/ul>\n<p>In file machinekit-dev\/M106<\/p>\n<p><code>halcmd setp hal_pru_generic.pwmgen.00.out.04.value $1<br \/>\n<strong>#<\/strong> halcmd sets fan.speed.set $1<\/code><\/p>\n<p>In file machinekit-dev\/M107<\/p>\n<p><code>halcmd setp hal_pru_generic.pwmgen.00.out.04.value 0<\/code><\/p>\n<p>In file CRAMPS.lineardelta.hal<\/p>\n<p><code># FET 5 - <strong>Fan<\/strong> \/ LED<br \/>\nsetp hal_pru_generic.pwmgen.00.out.04.pin       52<br \/>\nsetp hal_pru_generic.pwmgen.00.out.04.enable    1<br \/>\nsetp hal_pru_generic.pwmgen.00.out.04.value     0.0<br \/>\nsetp hal_pru_generic.pwmgen.00.out.04.scale     <strong>255<\/strong><\/code><\/p>\n<p><code># FET 6 - Fan \/ <strong>LED<\/strong><br \/>\nsetp hal_pru_generic.pwmgen.00.out.05.pin       34<br \/>\nsetp hal_pru_generic.pwmgen.00.out.05.enable    1<br \/>\nsetp hal_pru_generic.pwmgen.00.out.05.value     <strong>1.0<\/strong><\/code><\/p>\n<p>I set the last line to default on so that the LED is turned on as soon as the machine is armed to be a visual indicator.<\/p>\n<p><strong>Problems \/ Issues \/ Notes:<\/strong><\/p>\n<p>The $175 kit is for <strong>full<\/strong> size Rostock. When you build it as a <strong>Mini<\/strong>, the 250mm arms are a bit too long. Not a big deal though. The height is also a bit too tall for the <strong>Mini<\/strong>, but I see that as an advantage as the build height can be as tall as 350mm.<\/p>\n<p>The orange colored 40mm fan and the LED are held in place with a paper clip bent to form, and a single screw each. Saves weight. The fan needs to be oriented &amp; aligned as shown. It needs to be running when the heater is on, otherwise this particular J-Head heats up towards its top, and causes the fed material to buckle during extrusion.<\/p>\n<p>The acrylic part holding the J-Head needs to be opened up in size, since it is just a hair too tight to accept the selected J-Head. I used a Dremmel tool. I epoxied the J-Head in place on the acrylic piece using high temperature epoxy (<a href=\"http:\/\/www.homedepot.com\/p\/J-B-Weld-Weld-8265-s\/100189012\">J\u2022B Weld<\/a>).<\/p>\n<p>MK8 drives the \u22051.75mm material successfully. MK7 is marginally on the weak side. This particular setup probably would <strong>not<\/strong> feed a \u22053.0mm material successfully.<\/p>\n<p>Also, I did not include a heated bed, but the Kossel version from Folger Tech does include one.<\/p>\n<p>\u00a92014 EthnoSync.com. All Rights Reserved.<\/p>\n<p><script type=\"text\/javascript\">\/\/ <![CDATA[\ngoogle_ad_client = \"pub-7338556709983307\";\n\/* ArticleBanner *\/\ngoogle_ad_slot = \"0441375625\";\ngoogle_ad_width = 468;\ngoogle_ad_height = 60;\n\/\/ ]]><\/script><br \/>\n<script type=\"text\/javascript\" src=\"http:\/\/pagead2.googlesyndication.com\/pagead\/show_ads.js\">\/\/ <![CDATA[\n\n\n\/\/ ]]><\/script><\/p>\n\n","protected":false},"excerpt":{"rendered":"<p>The cost of build is ~$550, prices with taxes and shipping included. Folger Tech is selling a Kossel Mini for $399 which can also be upgraded to Beaglebone \/ LinuxCNC as shown here for a few dollars more. BOM is as follows, proceed at your own risk:<\/p>\n","protected":false},"author":1,"featured_media":813,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[166],"tags":[169,170,171,173,172,174,167,168],"class_list":["post-937","post","type-post","status-publish","format-standard","has-post-thumbnail","category-3d-printing","tag-beaglebone","tag-beaglebone-black","tag-beaglebone-black-rev-c","tag-cramps","tag-linuxcnc","tag-machinekit","tag-rostock","tag-rostock-mini","czr-hentry"],"_links":{"self":[{"href":"https:\/\/www.ethnosync.com\/index.php?rest_route=\/wp\/v2\/posts\/937","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ethnosync.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ethnosync.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ethnosync.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ethnosync.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=937"}],"version-history":[{"count":78,"href":"https:\/\/www.ethnosync.com\/index.php?rest_route=\/wp\/v2\/posts\/937\/revisions"}],"predecessor-version":[{"id":1025,"href":"https:\/\/www.ethnosync.com\/index.php?rest_route=\/wp\/v2\/posts\/937\/revisions\/1025"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ethnosync.com\/index.php?rest_route=\/wp\/v2\/media\/813"}],"wp:attachment":[{"href":"https:\/\/www.ethnosync.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=937"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ethnosync.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=937"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ethnosync.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=937"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}