{"id":8123,"date":"2006-03-23T21:15:00","date_gmt":"2006-03-24T02:15:00","guid":{"rendered":"https:\/\/nuxx.net\/blog\/2006\/03\/23\/printed-crap-board\/"},"modified":"2026-07-01T11:34:18","modified_gmt":"2026-07-01T15:34:18","slug":"printed-crap-board","status":"publish","type":"post","link":"https:\/\/nuxx.net\/blog\/2006\/03\/23\/printed-crap-board\/","title":{"rendered":"Printed Crap Board"},"content":{"rendered":"<p><center><img decoding=\"async\" src=\"https:\/\/nuxx.net\/blog\/wp-content\/uploads\/2026\/06\/sk1_midi_pcb_002.jpg\"><br \/>The traces are nowhere near as clear as they should be.<\/center><\/p>\n<p>So, yeah. Tonight I tried to make the printed circuit board detailed in <a href=\"http:\/\/maxmidi.com\/diy\/sk1\/SK-1PCB.pdf\">this PDF<\/a> on <a href=\"http:\/\/maxmidi.com\/diy\/sk1\/\">this page<\/a> for making it possible to trigger my Casio SK-1 via MIDI.<\/p>\n<p>Well, I learned two lessons in doing this&#8230;<\/p>\n<p>First, my technique for registering the two sides on a double-sided PCB appears to be successful.<\/p>\n<p>Second, my method of laser printing the mask on vellum and exposing to fluorescent light for 10 minutes isn&#8217;t good enough for fine lines. As you can see above, something went awry and the photo resist between the lines wasn&#8217;t exposed to enough light.<\/p>\n<p>I think I&#8217;m going to try an experiment with various levels of detail and a smaller single-sided PCB with a piece of laser printer transparency, just to see how well this method will work. I don&#8217;t think it&#8217;ll work out so well, but it can&#8217;t hurt to try&#8230;<\/p>\n<p>If this doesn&#8217;t work, I guess I&#8217;ll have to order some special paper just for doing this kind of thing. That won&#8217;t be cheap&#8230;<\/p>\n<p>Well, at least I&#8217;ve got a few more unexposed boards to play with.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The traces are nowhere near as clear as they should be. So, yeah. Tonight I tried to make the printed circuit board detailed in this PDF on this page for making it possible to trigger my Casio SK-1 via MIDI. Well, I learned two lessons in doing this&#8230; First, my technique for registering the two\u2026<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,11,34],"tags":[],"class_list":["post-8123","post","type-post","status-publish","format-standard","hentry","category-electronics","category-making-things","category-moved-from-livejournal"],"_links":{"self":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts\/8123","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/comments?post=8123"}],"version-history":[{"count":1,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts\/8123\/revisions"}],"predecessor-version":[{"id":13506,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts\/8123\/revisions\/13506"}],"wp:attachment":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/media?parent=8123"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/categories?post=8123"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/tags?post=8123"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}