{"id":38654,"date":"2019-12-16T17:30:04","date_gmt":"2019-12-16T21:30:04","guid":{"rendered":"https:\/\/www.novacam.com\/?p=38654"},"modified":"2019-12-23T10:12:30","modified_gmt":"2019-12-23T14:12:30","slug":"can-i-generate-a-cad-model-from-my-3d-point-cloud","status":"publish","type":"post","link":"https:\/\/www.novacam.com\/fr\/2019\/12\/16\/can-i-generate-a-cad-model-from-my-3d-point-cloud\/","title":{"rendered":"Puis-je g\u00e9n\u00e9rer un mod\u00e8le CAO \u00e0 partir de mon nuage de points 3D ?"},"content":{"rendered":"<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-5glagiy-24c7678ee694fc0d79d9f1210d9df560\">\n.flex_column.av-5glagiy-24c7678ee694fc0d79d9f1210d9df560{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-5glagiy-24c7678ee694fc0d79d9f1210d9df560 av_one_full  avia-builder-el-0  el_before_av_four_fifth  avia-builder-el-first  first flex_column_div av-zero-column-padding'     ><section  class='av_textblock_section av-jta74thu-3fc409b0d32e39d11adc02f5286a0537'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h1>Puis-je g\u00e9n\u00e9rer un mod\u00e8le CAO \u00e0 partir de mon nuage de points 3D ?<\/h1>\n<p>Published on December 16, 2019<\/p>\n<\/div><\/section><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-4ritlre-77e79f35f081374d59dacef470d61ed9\">\n.flex_column.av-4ritlre-77e79f35f081374d59dacef470d61ed9{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-4ritlre-77e79f35f081374d59dacef470d61ed9 av_four_fifth  avia-builder-el-2  el_after_av_one_full  el_before_av_four_fifth  first flex_column_div av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-jta78nsh-7836c01f8b2bd8af9c16d003cc129c68'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p>This is a question we get asked occasionally, even though generating CAD models is not the principal function or focus of Novacam 3D metrology systems. Novacam systems provide automated non-contact high-precision measurements for industrial applications. To measure, you don\u2019t need a CAD.<\/p>\n<p>Still, some of our clients\u2019 ultimate goal is reverse engineering of high-precision parts. They wonder if the 3D point cloud or the STL file (mesh) that Novacam systems generate can be used as a starting point for creating a CAD model.<\/p>\n<\/div><\/section><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-4ritlre-77e79f35f081374d59dacef470d61ed9\">\n.flex_column.av-4ritlre-77e79f35f081374d59dacef470d61ed9{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-4ritlre-77e79f35f081374d59dacef470d61ed9 av_four_fifth  avia-builder-el-4  el_after_av_four_fifth  el_before_av_two_fifth  first flex_column_div av-zero-column-padding'     ><section  class='av_textblock_section av-jta78nsh-7836c01f8b2bd8af9c16d003cc129c68'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p style=\"text-align: center;\"><small>Click on images for close-up view<\/small><\/p>\n<\/div><\/section><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-4ritlre-77e79f35f081374d59dacef470d61ed9\">\n.flex_column.av-4ritlre-77e79f35f081374d59dacef470d61ed9{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-4ritlre-77e79f35f081374d59dacef470d61ed9 av_two_fifth  avia-builder-el-6  el_after_av_four_fifth  el_before_av_two_fifth  first flex_column_div av-zero-column-padding'     ><section  class='av_textblock_section av-jta78nsh-7836c01f8b2bd8af9c16d003cc129c68'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><div id=\"attachment_38664\" style=\"width: 510px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.novacam.com\/wp-content\/uploads\/Cutting-tool-edge-3D-point-cloud-view.jpg\" rel=\"attachment wp-att-38664\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-38664\" class=\"wp-image-38664 size-full\" src=\"https:\/\/www.novacam.com\/wp-content\/uploads\/Cutting-tool-edge-3D-point-cloud-view.jpg\" alt=\"3D point cloud generated from a scan of a cutting tool edge using Novacam EdgeInspect 3D metrology system. Here the 3D point cloud is viewed with PolyWorks Inspector GD&amp;T software.\" width=\"500\" height=\"435\" srcset=\"https:\/\/www.novacam.com\/wp-content\/uploads\/Cutting-tool-edge-3D-point-cloud-view.jpg 500w, https:\/\/www.novacam.com\/wp-content\/uploads\/Cutting-tool-edge-3D-point-cloud-view-300x261.jpg 300w, https:\/\/www.novacam.com\/wp-content\/uploads\/Cutting-tool-edge-3D-point-cloud-view-140x122.jpg 140w, https:\/\/www.novacam.com\/wp-content\/uploads\/Cutting-tool-edge-3D-point-cloud-view-450x392.jpg 450w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><p id=\"caption-attachment-38664\" class=\"wp-caption-text\">3D point cloud generated from a scan of a cutting tool edge using Novacam EdgeInspect 3D metrology system. Here the 3D point cloud is viewed with PolyWorks Inspector GD&amp;T software.<\/p><\/div>\n<\/div><\/section><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-4ritlre-a60090e9859305b45c278f7f24e5073a\">\n.flex_column.av-4ritlre-a60090e9859305b45c278f7f24e5073a{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-4ritlre-a60090e9859305b45c278f7f24e5073a av_two_fifth  avia-builder-el-8  el_after_av_two_fifth  el_before_av_hr  flex_column_div av-zero-column-padding'     ><section  class='av_textblock_section av-jta78nsh-7836c01f8b2bd8af9c16d003cc129c68'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><div id=\"attachment_38663\" style=\"width: 510px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.novacam.com\/wp-content\/uploads\/Cutting-tool-edge-mesh-view.jpg\" rel=\"attachment wp-att-38599\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-38663\" class=\"wp-image-38663 size-full\" src=\"https:\/\/www.novacam.com\/wp-content\/uploads\/Cutting-tool-edge-mesh-view.jpg\" alt=\"STL file (mesh) generated from a scan of a cutting tool edge using Novacam EdgeInspect 3D metrology system. Here the STL file is viewed and analyzed with PolyWorks Inspector GD&amp;T software.\" width=\"500\" height=\"381\" srcset=\"https:\/\/www.novacam.com\/wp-content\/uploads\/Cutting-tool-edge-mesh-view.jpg 500w, https:\/\/www.novacam.com\/wp-content\/uploads\/Cutting-tool-edge-mesh-view-300x229.jpg 300w, https:\/\/www.novacam.com\/wp-content\/uploads\/Cutting-tool-edge-mesh-view-140x107.jpg 140w, https:\/\/www.novacam.com\/wp-content\/uploads\/Cutting-tool-edge-mesh-view-450x343.jpg 450w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><p id=\"caption-attachment-38663\" class=\"wp-caption-text\">STL file (mesh) generated from a scan of a cutting tool edge using Novacam EdgeInspect 3D metrology system. Here the STL file is viewed and analyzed with PolyWorks Inspector GD&amp;T software.<\/p><\/div>\n<\/div><\/section><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-jta76ch1-d4a0861baa66d978d280651e5ad14855\">\n#top .hr.hr-invisible.av-jta76ch1-d4a0861baa66d978d280651e5ad14855{\nheight:20px;\n}\n<\/style>\n<div  class='hr av-jta76ch1-d4a0861baa66d978d280651e5ad14855 hr-invisible  avia-builder-el-10  el_after_av_two_fifth  el_before_av_four_fifth'><span class='hr-inner'><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-4ritlre-77e79f35f081374d59dacef470d61ed9\">\n.flex_column.av-4ritlre-77e79f35f081374d59dacef470d61ed9{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-4ritlre-77e79f35f081374d59dacef470d61ed9 av_four_fifth  avia-builder-el-11  el_after_av_hr  el_before_av_four_fifth  first flex_column_div av-zero-column-padding'     ><section  class='av_textblock_section av-jta78nsh-7836c01f8b2bd8af9c16d003cc129c68'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h2>The answer is yes&#8230;\u00a0 not directly, but we can get you started<\/h2>\n<p>You\u2019ll need to follow a step or two beyond the software supplied with our systems.<\/p>\n<p><strong>First, some definitions<\/strong> of the types of data produced by Novacam systems (described in <a href=\"https:\/\/www.novacam.com\/fr\/2019\/12\/12\/3d-measurement-data-that-novacam-3d-metrology-systems-generate\/\">previous blog article<\/a>):<\/p>\n<ul>\n<li>A <strong>Nuage de points 3D<\/strong> is a set of data points associated with X,Y,Z coordinates. In the context of 3D scanning, the point cloud represents the set of points measured on the object surface and maps the surface in a 3D space.<\/li>\n<li>A <strong>mesh<\/strong> is a representation of the 3D object using a set of polygon surfaces. It offers a continuous view of 3D measurement data, much like stretching a skin over the measured 3D points. The mesh can be created from a 3D point cloud by, for example, connecting adjacent points with triangle surfaces. Novacam system software can also output the acquired 3D scan data directly in mesh (STL file) format.<\/li>\n<\/ul>\n<p><strong>What is a CAD model?<\/strong><\/p>\n<ul>\n<li>A <strong>CAD model<\/strong> is commonly defined as a 2D or 3D representation of a mechanical design of an object drafted using vector-based graphics. It typically includes information such as dimensions and tolerances.<\/li>\n<\/ul>\n<h2>So, what\u2019s involved in making a conversion to CAD?<\/h2>\n<p>Conversion of a 3D point cloud to a CAD model is basically a 2-step process.<\/p>\n<p><strong>Step 1) Extract geometric forms from the 3D point cloud<\/strong><\/p>\n<p>To convert a 3D point cloud to vector-based graphics, you must first start by segmenting the point cloud, i.e., identify groups of points as representing geometric forms such as cylinders and planes. Various software &#8211; both professional and free &#8211; exist to help in this step.<\/p>\n<p>The PolyWorks InspectorTM GD&amp;T software, which Novacam offers as an option with our systems, can be used at this stage. It provides tools for extracting geometric features such as cylinders, cones, planes and spheres from the 3D point cloud. You can also impose constraints on the extracted geometrical features \u2013 for example, some features can be made coaxial, parallel or perpendicular to each other \u2013 to bring their aspects closer to what an original (CAD) design would be. Here is <a href=\"https:\/\/www.innovmetric.com\/en\/support\/webinars\/archived-webinars\/expand-your-reverse-engineering-toolbox-using\">PolyWorks Inspector tutorial video on this subject<\/a>.<\/p>\n<p><strong>Step 2) Export the segmented 3D data in IGES format for use in CAD software of your choice<\/strong><\/p>\n<p>From the PolyWorks Inspector, you may export the extracted features into an IGES file, which can then be used for the creation of a CAD drawing using the software of your choice.<\/p>\n<\/div><\/section><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-4ritlre-77e79f35f081374d59dacef470d61ed9\">\n.flex_column.av-4ritlre-77e79f35f081374d59dacef470d61ed9{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-4ritlre-77e79f35f081374d59dacef470d61ed9 av_four_fifth  avia-builder-el-13  el_after_av_four_fifth  el_before_av_hr  first flex_column_div av-zero-column-padding'     ><section  class='av_textblock_section av-jta78nsh-7836c01f8b2bd8af9c16d003cc129c68'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h2>What else should I consider in this process?<\/h2>\n<p><strong>First &#8211; whatever software you use, the above two-step process is not fully automated<\/strong> \u2013 human intelligence is still required to interpret the raw data correctly.\u00a0 Patience is required and, when needed, online tutorials and discussions specific to each software package are often a great source of know-how.<\/p>\n<\/div><\/section><br \/>\n<section  class='av_textblock_section av-jta78nsh-7836c01f8b2bd8af9c16d003cc129c68'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p><strong>Second \u2013 when you need to produce high-precision 3D scans and CAD models of parts with hard-to-reach surfaces<\/strong>, keep in mind that Novacam\u2019s BoreInspect and TubeInspect offer a unique avenue for <a href=\"https:\/\/www.novacam.com\/fr\/applications\/les-espaces-difficiles-dacces\/\">measuring surfaces in tight spaces<\/a> in a non-destructive manner and <a href=\"https:\/\/www.novacam.com\/fr\/2018\/12\/12\/replacing-rubber-replicas-by-automated-measurement-inside-tight-spaces\/\">without the use of rubber replicas<\/a>.<\/p>\n<\/div><\/section><\/p><\/div><\/p>\n<div  class='hr av-x28awa-1d18ffd2e4aea10cdec1897a37081e4f hr-default  avia-builder-el-16  el_after_av_four_fifth  el_before_av_one_third'><span class='hr-inner'><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-tix1n-b6dc12bab2a4a33d3e4d6c73550c503f\">\n.flex_column.av-tix1n-b6dc12bab2a4a33d3e4d6c73550c503f{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-tix1n-b6dc12bab2a4a33d3e4d6c73550c503f av_one_third  avia-builder-el-17  el_after_av_hr  el_before_av_one_third  first flex_column_div av-zero-column-padding'     ><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-tix1n-8a7f8cc25c43c46e94cc3d44ce8407dd\">\n.flex_column.av-tix1n-8a7f8cc25c43c46e94cc3d44ce8407dd{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-tix1n-8a7f8cc25c43c46e94cc3d44ce8407dd av_one_third  avia-builder-el-18  el_after_av_one_third  el_before_av_one_third  flex_column_div av-zero-column-padding'     ><section  class='av_textblock_section av-24dm3-ba103b6d78fffee9b20fa453d4e54625'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p><a href=\"https:\/\/www.novacam.com\/fr\/entreprise\/nouvelles-et-evenements\/\">\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2lu3yx-d51a9b47a383446087af26e41f8404c8\">\n.av_font_icon.av-2lu3yx-d51a9b47a383446087af26e41f8404c8 .av-icon-char{\nfont-size:20px;\nline-height:20px;\n}\n<\/style>\n<span  class='av_font_icon av-2lu3yx-d51a9b47a383446087af26e41f8404c8 avia_animate_when_visible av-icon-style- avia-icon-pos-left avia-iconfont avia-font-entypo-fontello av-no-color avia-icon-animate'><span class='av-icon-char' data-av_icon='\ue830' data-av_iconfont='entypo-fontello' aria-hidden=\"true\" ><\/span><\/span>Back to News &amp; Events list<\/a><\/p>\n<\/div><\/section><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-tix1n-8a7f8cc25c43c46e94cc3d44ce8407dd\">\n.flex_column.av-tix1n-8a7f8cc25c43c46e94cc3d44ce8407dd{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-tix1n-8a7f8cc25c43c46e94cc3d44ce8407dd av_one_third  avia-builder-el-21  el_after_av_one_third  avia-builder-el-last  flex_column_div av-zero-column-padding'     ><\/div>","protected":false},"excerpt":{"rendered":"<p>C'est une question que l'on nous pose parfois, m\u00eame si la g\u00e9n\u00e9ration de mod\u00e8les CAO n'est pas la fonction principale des syst\u00e8mes de m\u00e9trologie 3D de Novacam. Les syst\u00e8mes Novacam fournissent des mesures automatis\u00e9es sans contact de haute pr\u00e9cision pour les applications industrielles. Pour mesurer, vous n'avez pas besoin de CAO.<\/p>\n<p>La r\u00e9ponse courte est oui... mais pas directement. Vous devrez suivre une ou deux \u00e9tapes au-del\u00e0 du logiciel fourni avec nos syst\u00e8mes. Mais nous pouvons vous aider \u00e0 d\u00e9marrer dans cet article.<\/p>","protected":false},"author":3,"featured_media":38673,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","footnotes":""},"categories":[27,4],"tags":[86,89,90],"class_list":["post-38654","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-all","category-news","tag-3d-point-cloud","tag-cad","tag-cad-model"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Can I generate a CAD model from my 3D point cloud? - Novacam<\/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:\/\/www.novacam.com\/fr\/2019\/12\/16\/can-i-generate-a-cad-model-from-my-3d-point-cloud\/\" \/>\n<meta property=\"og:locale\" content=\"fr_CA\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Can I generate a CAD model from my 3D point cloud? - Novacam\" \/>\n<meta property=\"og:description\" content=\"This is a question we get occasionally, even though generating CAD models is not the principal function or focus of Novacam 3D metrology systems. Novacam systems provide automated non-contact high-precision measurements for industrial applications. To measure, you don\u2019t need a CAD.  The short answer is yes... though not directly. You\u2019ll need to follow a step or two beyond the software supplied with our systems. 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