{"id":3674,"date":"2016-10-03T08:56:00","date_gmt":"2016-10-03T08:56:00","guid":{"rendered":"http:\/\/41j.com\/blog\/?p=3674"},"modified":"2016-10-03T08:56:00","modified_gmt":"2016-10-03T08:56:00","slug":"fabricating-oval-through-hole-pads","status":"publish","type":"post","link":"https:\/\/41j.com\/blog\/2016\/10\/fabricating-oval-through-hole-pads\/","title":{"rendered":"Fabricating oval through-hole pads"},"content":{"rendered":"<p><a href=\"http:\/\/41j.com\/blog\/2016\/10\/fabricating-oval-through-hole-pads\/slot\/\" rel=\"attachment wp-att-3675\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter  wp-image-3675\" src=\"http:\/\/41j.com\/blog\/wp-content\/uploads\/2016\/10\/slot.png\" alt=\"slot\" width=\"493\" height=\"238\" \/><\/a><\/p>\n<p>A friend has been trying to make slot like through-hole pads. These are the kinds of pads you&#8217;d use for the strain-relief pads on a USB connector etc.<\/p>\n<p>I don&#8217;t use these, but I should and probably will on my next board. My friend had ran into fabrication issues using the oval drill shape in Kicad. Investigating this I found that the oval drill don&#8217;t seem to get written to the\u00a0excellon drill files by Kicad. So there&#8217;s likely no way that they&#8217;d get fabbed (my friend uses the OSHPark Kicad import, but I&#8217;m guessing this just generates the drill files using Kicad anyway).<\/p>\n<p>From what I understand of the <a href=\"http:\/\/docs.oshpark.com\/submitting-orders\/cutouts-and-slots\/\">OSHPark documentation<\/a> on the subject. These holes should be marked as internal routing. In Kicad this is specified in the Edge.Cuts layer. The image above show an example where I&#8217;ve marked the routing around the hole. I believe this \/should\/ be fabricated correctly, but need to try it out. The OSHPark docs contain the following image (which they say \/should\/ work and will result in a plated hole:<\/p>\n<p><a href=\"http:\/\/41j.com\/blog\/2016\/10\/fabricating-oval-through-hole-pads\/unsupported-slot-callout\/\" rel=\"attachment wp-att-3676\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter  wp-image-3676\" src=\"http:\/\/41j.com\/blog\/wp-content\/uploads\/2016\/10\/unsupported-slot-callout.png\" alt=\"unsupported-slot-callout\" width=\"212\" height=\"162\" \/><\/a>However, they actually recommend in that document (linked above), that you replace these kinds of features with regular, larger, holes.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A friend has been trying to make slot like through-hole pads. These are the kinds of pads you&#8217;d use for the strain-relief pads on a USB connector etc. I don&#8217;t use these, but I should and probably will on my next board. My friend had ran into fabrication issues using the oval drill shape in [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[1],"tags":[],"class_list":["post-3674","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p1RRoU-Xg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/posts\/3674","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/comments?post=3674"}],"version-history":[{"count":2,"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/posts\/3674\/revisions"}],"predecessor-version":[{"id":3678,"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/posts\/3674\/revisions\/3678"}],"wp:attachment":[{"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/media?parent=3674"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/categories?post=3674"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/tags?post=3674"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}