{"id":1308,"date":"2015-11-03T04:35:20","date_gmt":"2015-11-02T14:35:20","guid":{"rendered":"http:\/\/commons.pratt.edu\/open-source\/?p=825"},"modified":"2015-11-03T04:35:20","modified_gmt":"2015-11-02T14:35:20","slug":"cnc-engraving-plexiglass","status":"publish","type":"post","link":"https:\/\/www.kornequipped.com\/blog\/?p=1308","title":{"rendered":"CNC Engraving Plexiglass"},"content":{"rendered":"\n<p>I wanted to try an edge lighted plexiglass sign. The easiest way to make sure you have a level bed and a straight edge to align your work is to use a sacrificial table. I found a scrap cutoff from a shelf and milled a pocket that reminds of a phone&#8230;..<\/p>\n\n\n\n<p>You need a good bottom cutting router bit. 3\/4 to 1.5 inches is perfect depending on your machines spindle power. On my Dremel power machine I&nbsp;was limited to about a 3\/8 bit. Here I picked a 1 inch bit.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/es.pratt.edu\/Commons\/Images\/cnc\/IMG_0295.JPG\" alt=\"\" \/><\/figure>\n\n\n\n<p>I&#8217;ve used this board before for making circular plaques so theres a remnant of that still visible. The rounded corners of the pocket don&#8217;t concern me too much I just want a straight edge to align the work to. I pinched the edges of a&nbsp;small scrap of plexi&nbsp;with a couple of small wood screws.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/es.pratt.edu\/Commons\/Images\/cnc\/IMG_0293.JPG\" alt=\"\" \/><\/figure>\n\n\n\n<p>The first cut is pretty messy but it gets better&#8230;..<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/es.pratt.edu\/Commons\/Images\/cnc\/IMG_0294.JPG\" alt=\"\" \/><\/figure>\n\n\n\n<p>Every pass after was a little smoother&#8230;<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/es.pratt.edu\/Commons\/Images\/cnc\/IMG_0296.JPG\" alt=\"\" \/><\/figure>\n\n\n\n<p>A quick test with my phones flashlight mode looks pretty good. A few blemishes from the scrap lying around on the bench or a while but that can be buffed out. a little sanding will straighten that rough edge too .<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/es.pratt.edu\/Commons\/Images\/cnc\/IMG_0298.JPG\" alt=\"\" \/><\/figure>\n\n\n\n<p>A quick wood holder was also cut on the CNC. just a square pocket with 3 holes punched in it. You can see most of the blemishes are gone after a minute on the buffing wheel.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/es.pratt.edu\/Commons\/Images\/cnc\/IMG_0305.JPG\" alt=\"\" \/><\/figure>\n\n\n\n<p>I also cut a rabbit &nbsp;to hide the wiring from the casual observer.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/es.pratt.edu\/Commons\/Images\/cnc\/IMG_0306.JPG\" alt=\"\" \/><\/figure>\n\n\n\n<p>Add a little hot glue to insulate the wires.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/es.pratt.edu\/Commons\/Images\/cnc\/IMG_0307.JPG\" alt=\"\" \/><\/figure>\n\n\n\n<p>And because I was really bored, an AtTiny to make it breathe&#8230;<\/p>\n\n\n\n<p>I probably could have made the base larger and cut a pocket for the chip.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/es.pratt.edu\/Commons\/Images\/cnc\/IMG_0310.JPG\" alt=\"\" \/><\/figure>\n\n\n\n<p>Overall not bad for a first try at Plexiglass.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/es.pratt.edu\/Commons\/Images\/cnc\/IMG_0308.JPG\" alt=\"\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>I wanted to try an edge lighted plexiglass sign. The easiest way to make sure you have a level bed and a straight edge to align your work is to use a sacrificial table. I found a scrap cutoff from a shelf and milled a pocket that reminds of a phone&#8230;.. You need a good [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-1308","post","type-post","status-publish","format-standard","hentry","category-cnc"],"_links":{"self":[{"href":"https:\/\/www.kornequipped.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1308","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kornequipped.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kornequipped.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kornequipped.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kornequipped.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1308"}],"version-history":[{"count":0,"href":"https:\/\/www.kornequipped.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1308\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.kornequipped.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1308"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kornequipped.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1308"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kornequipped.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1308"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}