{"id":730,"date":"2008-12-20T17:30:58","date_gmt":"2008-12-20T23:30:58","guid":{"rendered":"http:\/\/thmsblog.tedatum.com\/?p=730"},"modified":"2008-12-20T17:31:53","modified_gmt":"2008-12-20T23:31:53","slug":"silver-dust","status":"publish","type":"post","link":"https:\/\/blog.thehobbyistmachineshop.com\/?p=730","title":{"rendered":"Silver Dust"},"content":{"rendered":"<p>I just finished heat sink #3 for the HB2, which is the forth one I have machined counting the initial test block. I wondered how much aluminum I was removing from each 4x4x1 block.<\/p>\n<p>I don&#8217;t have a full size un-machined block left but I do have the scrap end which is nearly a full block. It measures 4 x 3 11\/16 x 1 which is 4 x 3.6875 x 1 or 15.75 cubic inches.<\/p>\n<p>I have a postage scale that measures to 0.1 ounce. That is going to determine my overall\u00a0accuracy. The undersized solid block weighed 23.2 ounces. Doing the math to figure what a cubic inch of aluminum weighs and bringing it back up to the 16 cubic inch start block ( 4 x 4 x 1), my figures say the start block should weigh 25.2 ounces.<\/p>\n<p>The fully machined heat sink weighs 14.4 ounces, a 10.8 ounce loss. That is 43% machined away!<\/p>\n<p>Pushing the fun with math a bit further, when I finish my 5th block, I will have made 54 ounces or 3.375 pounds of aluminum flakes.<\/p>\n<p>I bet Gloria thinks about half of that has already tracked into the house, Oops!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I just finished heat sink #3 for the HB2, which is the forth one I have machined counting the initial test block. I wondered how much aluminum I was removing from each 4x4x1 block. I don&#8217;t have a full size un-machined block left but I do have the scrap end which is nearly a full [&hellip;]<\/p>\n","protected":false},"author":77778,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[35],"tags":[138,24],"class_list":["post-730","post","type-post","status-publish","format-standard","hentry","category-home-brew-2","tag-cnc","tag-machine"],"_links":{"self":[{"href":"https:\/\/blog.thehobbyistmachineshop.com\/index.php?rest_route=\/wp\/v2\/posts\/730","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.thehobbyistmachineshop.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.thehobbyistmachineshop.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.thehobbyistmachineshop.com\/index.php?rest_route=\/wp\/v2\/users\/77778"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.thehobbyistmachineshop.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=730"}],"version-history":[{"count":0,"href":"https:\/\/blog.thehobbyistmachineshop.com\/index.php?rest_route=\/wp\/v2\/posts\/730\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.thehobbyistmachineshop.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=730"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.thehobbyistmachineshop.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=730"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.thehobbyistmachineshop.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=730"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}