{"id":15,"date":"2014-02-12T14:11:23","date_gmt":"2014-02-12T15:11:23","guid":{"rendered":"http:\/\/123designs.biz\/blog\/?p=15"},"modified":"2014-12-13T18:00:19","modified_gmt":"2014-12-13T19:00:19","slug":"inventors-guide-to-plastic-parts","status":"publish","type":"post","link":"https:\/\/123designs.biz\/blog\/inventors-guide-to-plastic-parts\/","title":{"rendered":"Inventors Guide to Plastic Parts"},"content":{"rendered":"<p>If you are an inventor planning to use plastic in your product, there are some design rules you should be aware of.\u00a0 This article will help you understand some of the limitations of injection molding, the most common way to manufacture plastic parts.\u00a0 This knowledge will also help you evaluate your design&#8217;s readiness for plastic injection molding.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Uniform Thickness<\/strong><\/p>\n<p>The first rule of plastic is that every wall must have the same thickness. Following this design rule gets difficult in the corners.\u00a0 Unfortunately, injection molding will not work well with sharp corners.\u00a0 The image below shows why sharp corners break the uniform thickness rule, related thickness mistakes, and the best type of corner for plastics&#8230;rounded.\u00a0 Most plastic consumer products are between 2-3 mm (0.08-0.12 in) thick.<\/p>\n<p><a href=\"http:\/\/123designs.biz\/blog\/wp-content\/uploads\/2014\/12\/Uniform-wall-thickness-in-corners.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-18 size-full\" title=\"123DESIGNS 2013\" src=\"http:\/\/123designs.biz\/blog\/wp-content\/uploads\/2014\/12\/Uniform-wall-thickness-in-corners.png\" alt=\"Uniform wall thickness in corners\" width=\"750\" height=\"294\" srcset=\"https:\/\/123designs.biz\/blog\/wp-content\/uploads\/2014\/12\/Uniform-wall-thickness-in-corners.png 750w, https:\/\/123designs.biz\/blog\/wp-content\/uploads\/2014\/12\/Uniform-wall-thickness-in-corners-300x117.png 300w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Draft<\/strong><\/p>\n<p>Without draft, a plastic part would not be able to be removed from it&#8217;s mold.\u00a0 True 90 degree walls are not possible.\u00a0 3 degrees of draft angle is typical.<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-16 size-full\" title=\"123DESIGNS 2013\" src=\"http:\/\/123designs.biz\/blog\/wp-content\/uploads\/2014\/12\/Draft.png\" alt=\"Draft\" width=\"750\" height=\"495\" srcset=\"https:\/\/123designs.biz\/blog\/wp-content\/uploads\/2014\/12\/Draft.png 750w, https:\/\/123designs.biz\/blog\/wp-content\/uploads\/2014\/12\/Draft-300x198.png 300w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><strong>Undercuts<\/strong><\/p>\n<p>Undercuts can be thought of as draft in the wrong direction.\u00a0 Holes in side walls are a common example.\u00a0 Such features can be injection molded, but require extra tooling = extra cost.\u00a0 Undercuts should be completely avoided if possible.\u00a0 If such features are necessary be sure to discuss them with an experienced plastic part designer.<a href=\"http:\/\/123designs.biz\/blog\/wp-content\/uploads\/2014\/12\/UndercutS.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-17 size-full\" title=\"123DESIGNS 2013\" src=\"http:\/\/123designs.biz\/blog\/wp-content\/uploads\/2014\/12\/UndercutS.png\" alt=\"Undercuts\" width=\"750\" height=\"280\" srcset=\"https:\/\/123designs.biz\/blog\/wp-content\/uploads\/2014\/12\/UndercutS.png 750w, https:\/\/123designs.biz\/blog\/wp-content\/uploads\/2014\/12\/UndercutS-300x112.png 300w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>If you are an inventor planning to use plastic in your product, there are some design rules you should be aware of.\u00a0 This article will help you understand some of the limitations of injection molding, the most common way to manufacture plastic parts.\u00a0 This knowledge will also help you evaluate your design&#8217;s readiness for plastic [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":45,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"gallery","meta":{"rop_custom_images_group":[],"rop_custom_messages_group":[],"rop_publish_now":"initial","rop_publish_now_accounts":[],"rop_publish_now_history":[],"rop_publish_now_status":"pending","_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[2,6],"tags":[5,15,4],"class_list":["bg-responsive"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Inventors Guide to Plastic Parts - 123DESIGNS<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/123designs.biz\/blog\/inventors-guide-to-plastic-parts\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Inventors Guide to Plastic Parts - 123DESIGNS\" \/>\n<meta property=\"og:description\" content=\"If you are an inventor planning to use plastic in your product, there are some design rules you should be aware of.\u00a0 This article will help you understand some of the limitations of injection molding, the most common way to manufacture plastic parts.\u00a0 This knowledge will also help you evaluate your design&#8217;s readiness for plastic [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/123designs.biz\/blog\/inventors-guide-to-plastic-parts\/\" \/>\n<meta property=\"og:site_name\" content=\"123DESIGNS\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/123designsbiz\" \/>\n<meta property=\"article:published_time\" content=\"2014-02-12T15:11:23+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2014-12-13T19:00:19+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/123designs.biz\/blog\/wp-content\/uploads\/2014\/02\/Uniform-wall-thickness-in-corners-b1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"750\" \/>\n\t<meta property=\"og:image:height\" content=\"294\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"123DESIGNS\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"123DESIGNS\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/123designs.biz\/blog\/inventors-guide-to-plastic-parts\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/123designs.biz\/blog\/inventors-guide-to-plastic-parts\/\"},\"author\":{\"name\":\"123DESIGNS\",\"@id\":\"https:\/\/123designs.biz\/blog\/#\/schema\/person\/1249fd0324a0c1bb7321c64d7b38020f\"},\"headline\":\"Inventors Guide to Plastic Parts\",\"datePublished\":\"2014-02-12T15:11:23+00:00\",\"dateModified\":\"2014-12-13T19:00:19+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/123designs.biz\/blog\/inventors-guide-to-plastic-parts\/\"},\"wordCount\":221,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/123designs.biz\/blog\/inventors-guide-to-plastic-parts\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/123designs.biz\/blog\/wp-content\/uploads\/2014\/02\/Uniform-wall-thickness-in-corners-b1.jpg\",\"keywords\":[\"CAD\",\"Design\",\"Plastic\"],\"articleSection\":[\"Design\",\"Plastics\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/123designs.biz\/blog\/inventors-guide-to-plastic-parts\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/123designs.biz\/blog\/inventors-guide-to-plastic-parts\/\",\"url\":\"https:\/\/123designs.biz\/blog\/inventors-guide-to-plastic-parts\/\",\"name\":\"Inventors Guide to Plastic Parts - 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