{"id":76,"date":"2014-07-03T17:36:34","date_gmt":"2014-07-03T17:36:34","guid":{"rendered":"http:\/\/3d.rayharwood.com\/?p=76"},"modified":"2016-01-13T13:34:23","modified_gmt":"2016-01-13T13:34:23","slug":"couldnt-do-without-my-caliper","status":"publish","type":"post","link":"https:\/\/3d.rayharwood.com\/?p=76","title":{"rendered":"Couldn&#8217;t Do Without My Caliper"},"content":{"rendered":"<div id=\"attachment_80\" style=\"width: 310px\" class=\"wp-caption alignright\"><a href=\"https:\/\/i1.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/IMG_6622.jpg\"><img aria-describedby=\"caption-attachment-80\" data-attachment-id=\"80\" data-permalink=\"https:\/\/3d.rayharwood.com\/?attachment_id=80#main\" data-orig-file=\"https:\/\/i1.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/IMG_6622.jpg?fit=3264%2C2448&amp;ssl=1\" data-orig-size=\"3264,2448\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;2.4&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;iPhone 5&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1404382570&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;4.12&quot;,&quot;iso&quot;:&quot;320&quot;,&quot;shutter_speed&quot;:&quot;0.05&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;Ruler and Tool Bag provided with the Lulzbot printer&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/i1.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/IMG_6622.jpg?fit=300%2C225&amp;ssl=1\" data-large-file=\"https:\/\/i1.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/IMG_6622.jpg?fit=670%2C503&amp;ssl=1\" loading=\"lazy\" class=\"size-medium wp-image-80\" src=\"https:\/\/i1.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/IMG_6622.jpg?resize=300%2C225\" alt=\"Ruler and Tool Bag provided with the Lulzbot printer\" width=\"300\" height=\"225\" srcset=\"https:\/\/i1.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/IMG_6622.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i1.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/IMG_6622.jpg?resize=1024%2C768&amp;ssl=1 1024w, https:\/\/i1.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/IMG_6622.jpg?w=1340 1340w, https:\/\/i1.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/IMG_6622.jpg?w=2010 2010w\" sizes=\"(max-width: 300px) 100vw, 300px\" data-recalc-dims=\"1\" \/><\/a><p id=\"caption-attachment-80\" class=\"wp-caption-text\">Ruler and Tool Bag provided with the Lulzbot printer<\/p><\/div>\n<p>The Lulzbot printer comes with a variety of tools in a nice little tool bag, and one of the items is a 150mm ruler.\u00a0 It&#8217;s sufficient for short measurements where accuracy isn&#8217;t a major factor, but for the rather precise parts and fittings I&#8217;m building, I needed something a little more accurate.<!--more--><\/p>\n<p>While wandering around the Phoenix Fry&#8217;s Electronics store, I found (after asking the very helpful staff there) two electronic models from General Tools &amp; Instruments.\u00a0 I ended up buying the larger <a title=\"General Tools Model 147 at Fry's Electronics\" href=\"http:\/\/www.frys.com\/product\/5270947\" target=\"_blank\">Model 147<\/a> for just under $40.\u00a0 I read some reviews of this and similar models on the Amazon site, and a number of people berated the accuracy and battery life.\u00a0 But in my opinion, it works extremely well for my purposes.<\/p>\n<p>It will read in millimeters, which is very useful when designing in FreeCAD.\u00a0 And if you <strong>want<\/strong> to go to inches, it&#8217;ll do both decimal and fractional inch measurements.<\/p>\n<p>To alleviate the battery life problems, my model automatically shuts off after a few minutes.\u00a0 All you have to remember is to close the caliper all the way before turning back on, or hit the &#8220;zero&#8221; button after closing it.<\/p>\n<p>This is the six inch version; they have a three inch version for about half the price.<\/p>\n<div id=\"attachment_81\" style=\"width: 235px\" class=\"wp-caption alignright\"><a href=\"https:\/\/i1.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/IMG_6623.jpg\"><img aria-describedby=\"caption-attachment-81\" data-attachment-id=\"81\" data-permalink=\"https:\/\/3d.rayharwood.com\/?attachment_id=81#main\" data-orig-file=\"https:\/\/i1.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/IMG_6623.jpg?fit=2448%2C3264&amp;ssl=1\" data-orig-size=\"2448,3264\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;2.4&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;iPhone 5&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1404382609&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;4.12&quot;,&quot;iso&quot;:&quot;100&quot;,&quot;shutter_speed&quot;:&quot;0.05&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;General Tools Model 147 in action&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/i1.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/IMG_6623.jpg?fit=225%2C300&amp;ssl=1\" data-large-file=\"https:\/\/i1.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/IMG_6623.jpg?fit=670%2C893&amp;ssl=1\" loading=\"lazy\" class=\"size-medium wp-image-81\" src=\"https:\/\/i1.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/IMG_6623.jpg?resize=225%2C300\" alt=\"General Tools Model 147 in action\" width=\"225\" height=\"300\" srcset=\"https:\/\/i1.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/IMG_6623.jpg?resize=225%2C300&amp;ssl=1 225w, https:\/\/i1.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/IMG_6623.jpg?resize=768%2C1024&amp;ssl=1 768w, https:\/\/i1.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/IMG_6623.jpg?w=1340 1340w, https:\/\/i1.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/IMG_6623.jpg?w=2010 2010w\" sizes=\"(max-width: 225px) 100vw, 225px\" data-recalc-dims=\"1\" \/><\/a><p id=\"caption-attachment-81\" class=\"wp-caption-text\">General Tools Model 147 in action<\/p><\/div>\n<div id=\"attachment_79\" style=\"width: 310px\" class=\"wp-caption alignright\"><a href=\"https:\/\/i0.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/IMG_6619.jpg\"><img aria-describedby=\"caption-attachment-79\" data-attachment-id=\"79\" data-permalink=\"https:\/\/3d.rayharwood.com\/?attachment_id=79#main\" data-orig-file=\"https:\/\/i0.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/IMG_6619.jpg?fit=3264%2C2448&amp;ssl=1\" data-orig-size=\"3264,2448\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;2.4&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;iPhone 5&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1404382451&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;4.12&quot;,&quot;iso&quot;:&quot;400&quot;,&quot;shutter_speed&quot;:&quot;0.058823529411765&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;Electronic caliper in the handy case it comes in&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/i0.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/IMG_6619.jpg?fit=300%2C225&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/IMG_6619.jpg?fit=670%2C503&amp;ssl=1\" loading=\"lazy\" class=\"size-medium wp-image-79\" src=\"https:\/\/i0.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/IMG_6619.jpg?resize=300%2C225\" alt=\"Electronic caliper in the handy case it comes in\" width=\"300\" height=\"225\" srcset=\"https:\/\/i0.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/IMG_6619.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/IMG_6619.jpg?resize=1024%2C768&amp;ssl=1 1024w, https:\/\/i0.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/IMG_6619.jpg?w=1340 1340w, https:\/\/i0.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/IMG_6619.jpg?w=2010 2010w\" sizes=\"(max-width: 300px) 100vw, 300px\" data-recalc-dims=\"1\" \/><\/a><p id=\"caption-attachment-79\" class=\"wp-caption-text\">Electronic caliper in the handy case it comes in<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>The Lulzbot printer comes with a variety of tools in a nice little tool bag, and one of the items is a 150mm ruler.\u00a0 It&#8217;s sufficient for short measurements where accuracy isn&#8217;t a major factor, but for the rather precise parts and fittings I&#8217;m building, I needed something a little more accurate.<\/p>\n","protected":false},"author":1,"featured_media":79,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false},"categories":[1,14],"tags":[16,17,15],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/IMG_6619.jpg?fit=3264%2C2448&ssl=1","jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p76pQa-1e","jetpack-related-posts":[{"id":106,"url":"https:\/\/3d.rayharwood.com\/?p=106","url_meta":{"origin":76,"position":0},"title":"3D-Cam","date":"July 10, 2014","format":false,"excerpt":"As I mentioned in one of my Twitter threads, it's great to have a remotely monitor-able 3D Printer Cam, so you can keep an eye on a print-in-progress while doing other work. My printing is done in another room from where I do design, email, and other routine stuff -\u2026","rel":"","context":"In &quot;General&quot;","img":{"alt_text":"","src":"https:\/\/i2.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/3DPrinter-Cam.jpg?fit=640%2C480&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":6,"url":"https:\/\/3d.rayharwood.com\/?p=6","url_meta":{"origin":76,"position":1},"title":"I'm printing 3D!","date":"June 29, 2014","format":false,"excerpt":"Retired at 60 and sitting on my butt? I don't think so! As I tell people, \"I'm busier than I ever was \u2013 and I'm enjoying myself more than ever!\" One of the things I'm doing is creating a coin processing device called Coins-Worth.\u00a0 But to do this, I needed\u2026","rel":"","context":"In &quot;General&quot;","img":{"alt_text":"","src":"https:\/\/i1.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/06\/20140629-100905-36545551.jpg?fit=1024%2C768&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":285,"url":"https:\/\/3d.rayharwood.com\/?p=285","url_meta":{"origin":76,"position":2},"title":"Made a Wood Shop Accessory: Shop Vac to Sander Adapter","date":"June 17, 2015","format":false,"excerpt":"Sometimes it really does come down to \"necessity is the mother of invention\", and 3D printers make this possible for nearly anyone willing to invest a little time. Today, I did it again - from design, print, and ready in under 2 hours! Note that you can click on each\u2026","rel":"","context":"In &quot;3D Objects&quot;","img":{"alt_text":"","src":"https:\/\/i0.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2015\/06\/20150617_151128785_iOS.jpg?fit=1200%2C900&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":34,"url":"https:\/\/3d.rayharwood.com\/?p=34","url_meta":{"origin":76,"position":3},"title":"Lulzbot TAZ 4 - The Full View","date":"July 2, 2014","format":false,"excerpt":"Here's a full-view picture of the Lulzbot TAZ 4 in action.\u00a0 I switched from printing directly on the Krylon (dark green surface on the board) to painter's tape, and it seemed to adhere better. I was printing drawer dividers for Carol's craft drawer. (See here for more details and pictures\u2026","rel":"","context":"In &quot;General&quot;","img":{"alt_text":"","src":"https:\/\/i0.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/20140702-085029-31829533.jpg?fit=1024%2C768&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":199,"url":"https:\/\/3d.rayharwood.com\/?p=199","url_meta":{"origin":76,"position":4},"title":"Coins-Worth assembly","date":"October 10, 2014","format":false,"excerpt":"Just before moving around Labor Day, I had assembled a Coins-Worth unit with as much as I had.\u00a0 This picture shows the side view, with the power and USB connectors on the lower left, the Logitech web camera on the upper right, and the feeder tube on the upper left.\u2026","rel":"","context":"In &quot;Coins-Worth&quot;","img":{"alt_text":"","src":"https:\/\/i2.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/10\/20140725_180556563_iOS.jpg?fit=900%2C1200&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":273,"url":"https:\/\/3d.rayharwood.com\/?p=273","url_meta":{"origin":76,"position":5},"title":"4\" Print of Lifecasting Model Scanned to STL","date":"June 9, 2015","format":false,"excerpt":"In my previous post (read it for more details on the artist and his studio), I displayed a picture of the 2 inch\u00a0print of an STL file I received from \"Gullwing\", the artist at Images in Depth\/Lifecast Arizona. Here you see a deconstructed 4 inch\u00a0print (left)\u00a0along with the removed support\u2026","rel":"","context":"In &quot;3D Objects&quot;","img":{"alt_text":"","src":"https:\/\/i0.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2015\/06\/image.jpg?fit=1200%2C900&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/3d.rayharwood.com\/index.php?rest_route=\/wp\/v2\/posts\/76"}],"collection":[{"href":"https:\/\/3d.rayharwood.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/3d.rayharwood.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/3d.rayharwood.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/3d.rayharwood.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=76"}],"version-history":[{"count":5,"href":"https:\/\/3d.rayharwood.com\/index.php?rest_route=\/wp\/v2\/posts\/76\/revisions"}],"predecessor-version":[{"id":388,"href":"https:\/\/3d.rayharwood.com\/index.php?rest_route=\/wp\/v2\/posts\/76\/revisions\/388"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/3d.rayharwood.com\/index.php?rest_route=\/wp\/v2\/media\/79"}],"wp:attachment":[{"href":"https:\/\/3d.rayharwood.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=76"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/3d.rayharwood.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=76"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/3d.rayharwood.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=76"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}