{"id":17344,"date":"2019-11-12T14:50:33","date_gmt":"2019-11-12T14:50:33","guid":{"rendered":"https:\/\/www.3dnatives.com\/en\/?p=17344"},"modified":"2020-01-15T10:18:24","modified_gmt":"2020-01-15T10:18:24","slug":"design-for-additive-manufacturing-expert-advice-121120195","status":"publish","type":"post","link":"https:\/\/www.3dnatives.com\/en\/design-for-additive-manufacturing-expert-advice-121120195\/","title":{"rendered":"How to Design for Additive Manufacturing: Experts give their advice!"},"content":{"rendered":"<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">As you will know, a machining piece is not designed in the same way as a 3D printed piece: each manufacturing process is associated with a design technique. In <a href=\"https:\/\/www.3dnatives.com\/en\/3d-technologies\/\">additive manufacturing<\/a>, there are very specific design rules and tools that will allow you to create an optimized design, ready for 3D printing. These methods are generally grouped under the term <\/span><b><i>Design for Additive Manufacturing<\/i><\/b> <span style=\"font-weight: 400;\">(DfAM) &#8211; developed to optimize the functional performance of the part as much as possible, but also its cost, reliability, and other product life-cycle considerations. Several techniques are used today, such as generative design, topology optimization or the creation of lattice structures. How to choose the right design method to optimize the entire design process of a 3D printed part? We asked three additive manufacturing experts for their opinion on the matter!\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\">In order to answer the issues related to DfAM, we asked some questions to Ravi Kunju, SVP, Strategy and Business Development at Altair; Daniel Pyzak, Director, EMEA CATIA Competency Center at <a href=\"https:\/\/make.3dexperience.3ds.com\/welcome?utm_source=3Dnative&amp;utm_medium=REFERRER&amp;utm_campaign=Banniers-1\" target=\"_blank\" rel=\"noopener noreferrer\">Dassault Syst\u00e8mes<\/a>; and last but not least Peter Rogers, APAC Product Specialist for Additive Manufacturing at Autodesk.<\/p>\n\n\t\t<style type=\"text\/css\">\n\t\t\t#gallery-1 {\n\t\t\t\tmargin: auto;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-item {\n\t\t\t\tfloat: left;\n\t\t\t\tmargin-top: 10px;\n\t\t\t\ttext-align: center;\n\t\t\t\twidth: 33%;\n\t\t\t}\n\t\t\t#gallery-1 img {\n\t\t\t\tborder: 2px solid #cfcfcf;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-caption {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\t\t\t\/* see gallery_shortcode() in wp-includes\/media.php *\/\n\t\t<\/style>\n\t\t<div id='gallery-1' class='gallery galleryid-17344 gallery-columns-3 gallery-size-large'><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"268\" height=\"400\" src=\"https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/Ravi.jpg\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-1-17347\" srcset=\"https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/Ravi.jpg 268w, https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/Ravi-201x300.jpg 201w, https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/Ravi-160x239.jpg 160w\" sizes=\"auto, (max-width: 268px) 100vw, 268px\" \/>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-17347'>\n\t\t\t\tRavi Kunju\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"268\" height=\"400\" src=\"https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/daniel.jpg\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-1-17346\" srcset=\"https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/daniel.jpg 268w, https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/daniel-201x300.jpg 201w, https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/daniel-160x239.jpg 160w\" sizes=\"auto, (max-width: 268px) 100vw, 268px\" \/>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-17346'>\n\t\t\t\tDaniel Pyzak\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"268\" height=\"400\" src=\"https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/peter.jpg\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-1-17348\" srcset=\"https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/peter.jpg 268w, https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/peter-201x300.jpg 201w, https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/peter-160x239.jpg 160w\" sizes=\"auto, (max-width: 268px) 100vw, 268px\" \/>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-17348'>\n\t\t\t\tPeter Rogers\n\t\t\t\t<\/dd><\/dl><br style=\"clear: both\" \/>\n\t\t<\/div>\n\n<h3 style=\"text-align: left;\"><strong>What dictates which DfAM technique is used?\u00a0<\/strong><\/h3>\n<p style=\"text-align: justify;\">For some context, DfAM emerged because of the enormous design freedom and unique capabilities provided by AM technologies, as opposed to traditional methods such as CNC machining, where some designs are simply impossible to manufacture. Peter Rogers elaborates on this point: &#8220;<em>For additive, the question &#8216;Can we do that?&#8217; is often answered by a &#8216;yes&#8217;. While it is feasible to do something, it doesn&#8217;t mean it should be done that way. Production and manufacturing teams are building out their understanding of the best practices around AM.<\/em>&#8220;<\/p><div class=\"dnati-inside-article-leaderboard\" style=\"text-align: center;\" id=\"dnati-2944747453\"><a data-no-instant=\"1\" href=\"https:\/\/eu.snapmaker.com\/products\/snapmaker-u1-3d-printer?utm_source=3dnatives&#038;utm_medium=pr&#038;utm_campaign=u1launch2025&#038;utm_content=u1preorder\" rel=\"noopener\" class=\"a2t-link\" target=\"_blank\" aria-label=\"850 x 150px\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/2026\/03\/850-x-150px-scaled.jpeg\" alt=\"\"  srcset=\"https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/2026\/03\/850-x-150px-scaled.jpeg 2560w, https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/2026\/03\/850-x-150px-600x106.jpeg 600w, https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/2026\/03\/850-x-150px-1200x212.jpeg 1200w, https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/2026\/03\/850-x-150px-768x136.jpeg 768w, https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/2026\/03\/850-x-150px-1536x271.jpeg 1536w, https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/2026\/03\/850-x-150px-2048x361.jpeg 2048w, https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/2026\/03\/850-x-150px-160x28.jpeg 160w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" width=\"850\" height=\"150\"   \/><\/a><\/div>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">To begin with, it is important to remember that the design technique(s) chosen will depend on the technology used. Ravi Kunju is quite clear: &#8220;<\/span><i><span style=\"font-weight: 400;\">It is the process that dictates how a part is prepared and how it is finished<\/span><\/i><span style=\"font-weight: 400;\">.&#8221; If you own an <a href=\"https:\/\/www.3dnatives.com\/en\/fused-deposition-modeling100420174\/\">FDM<\/a> 3D printer, you will not create your part in the same way as if you owned a <a href=\"https:\/\/www.3dnatives.com\/en\/metal-3d-printer-manufacturers\/\">metal<\/a> or <a href=\"https:\/\/www.3dnatives.com\/en\/selective-laser-sintering100420174\/\">SLS<\/a> 3D printer. Starting from the technology itself, you will avoid certain errors and this will allow you to better optimize your surface finish, maximize the mechanical properties of your part and facilitate its cleaning, which in turn means saving time, material and money. Daniel Pyzak from Dassault adds: &#8220;<\/span><i><span style=\"font-weight: 400;\">There are a lot of rules to follow during the design stage to get a proper design for 3D printing: these rules depend strongly on the machine (capacity size, type of technology, material, etc.)<\/span><\/i><span style=\"font-weight: 400;\">\u201d\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Take for example <a href=\"https:\/\/www.3dnatives.com\/en\/the-metal-3d-printing-guide\/\">metal 3D printing<\/a>, and more precisely <a href=\"https:\/\/www.3dnatives.com\/en\/direct-metal-laser-sintering100420174-2\/\">Laser Powder Bed Fusion<\/a> technology. Ravi Kunju explains: &#8220;<\/span><i><span style=\"font-weight: 400;\">For example, in a selective laser melting process to print metal, a support structure is required when printing surfaces that are under 45 degrees. Otherwise the down-facing surface quality can be very poor. Support structures are expensive to print and remove, considering they have to be subtracted from the final part. The best approach is to create designs that have minimal support structures.\u00a0 One must add a constraint to ensure that the structure that is generated has surfaces well over the 45-degree angle from the horizontal<\/span><\/i><span style=\"font-weight: 400;\">.&#8221; Minimizing the number of supports is therefore an important step in DfAM, a point that can also be applied to other 3D printing technologies.\u00a0<\/span><\/p>\n<div id=\"attachment_17350\" style=\"width: 710px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-17350\" class=\"size-full wp-image-17350\" src=\"https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/DfAM.jpg\" alt=\"Design for Additive Manufacturing \" width=\"700\" height=\"400\" srcset=\"https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/DfAM.jpg 700w, https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/DfAM-300x171.jpg 300w, https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/DfAM-160x91.jpg 160w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><p id=\"caption-attachment-17350\" class=\"wp-caption-text\">Peter Rogers explains that an exciting new technology can compare the results if using 3D printing, 2.5, 3, 5-axis machining, and other manufacturing methods to determine which parts are suitable for AM | Credits: Autodesk<\/p><\/div>\n<h3 style=\"text-align: left;\"><strong>What are the Design for Additive Manufacturing techniques?\u00a0<\/strong><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Understanding how a part will be used and what is its purpose is of key importance when choosing which design technique(s) to apply &#8211; in other words, DfAM is a great way of adding <\/span><b>functionality<\/b><span style=\"font-weight: 400;\">. Peter Rogers explains in more detail: \u201c<\/span><i><span style=\"font-weight: 400;\">For example, there is a strong focus on generative design and <a href=\"https:\/\/www.3dnatives.com\/en\/topology-optimisation140820184\/\">topology optimization<\/a> for aviation and aerospace mission-critical parts, which in part stems from the requirement to be able to do easy crack inspections. With lattices, the internal sections cannot be easily inspected, which would mean that the ongoing disadvantages would outweigh the benefits. However, in medical devices, the shape is relatively set in place, and lattices are more functional for osseointegration, so most DfAM is done using latticing.\u201d<\/span><\/i><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">You have most probably heard of topology optimization and generative design before. In fact, both techniques are often associated. Daniel Pyzak explains: \u201c<\/span><i><span style=\"font-weight: 400;\">They are design technologies for lightweight engineering serving multiple manufacturing processes: milling, casting, and additive manufacturin<\/span><\/i><span style=\"font-weight: 400;\">g.\u201d In short, the final goal of <\/span><b>generative design<\/b><span style=\"font-weight: 400;\"> is to arrive at a design that meets performance requirements better, faster, and lighter, using computational methods and resources at-hand. <\/span><b>Topology optimization<\/b><span style=\"font-weight: 400;\"> is none other than a proven generative design method that is focused on optimizing material distribution using sound numerical methods. The optimized shapes you get from topology optimization are very often impossible to manufacture using traditional processes.\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">However, Ravi Kunju adds that it can be expensive, time consuming and even sub-optimal to alter designs and explore each variation infinitely. \u201c<\/span><i><span style=\"font-weight: 400;\">If there are too many constraints, one may never arrive at an optimal solution. There are many numerical techniques and methods available to drive the designs, such as DOE (design of experiments), stochastic methods, genetic algorithms, neural networks etc., all of which have their strengths and weaknesses and can be classified as design study and synthesis (DSS)<\/span><\/i><span style=\"font-weight: 400;\">.\u201d<\/span><\/p>\n<div id=\"attachment_17353\" style=\"width: 710px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-17353\" class=\"size-full wp-image-17353\" src=\"https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/DFAM_topology.jpg\" alt=\"Design For Additive Manufacturing\" width=\"700\" height=\"400\" srcset=\"https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/DFAM_topology.jpg 700w, https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/DFAM_topology-300x171.jpg 300w, https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/DFAM_topology-160x91.jpg 160w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><p id=\"caption-attachment-17353\" class=\"wp-caption-text\">Thanks to Altair&#8217;s software solutions, AP Works (an Airbus subsidiary) designed a 3D printed frame for its motorcycle. With topology optimization, they were able to reduce the final weight of the part by 30% | Credits: Altair<\/p><\/div>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Finally, our experts focused on the concept of lattice structures, which is a form of optimization since it aims to reduce the weight of a part while maintaining its structural integrity. Latticing works by creating a network of meshes and knots that are often compared to a honeycomb structure, a design that is difficult to obtain using traditional manufacturing methods. The advantages of such a design are many, but the main point to remember is that they offer an optimal strength to weight ratio. Such a technique also offers shock absorption and impact protection, particularly interesting in cycling, for example.\u00a0<\/span><\/p>\n<div id=\"attachment_17352\" style=\"width: 710px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-17352\" class=\"size-full wp-image-17352\" src=\"https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/DfAM_2.jpg\" alt=\"Design for Additive Manufacturing\" width=\"700\" height=\"400\" srcset=\"https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/DfAM_2.jpg 700w, https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/DfAM_2-300x171.jpg 300w, https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/DfAM_2-160x91.jpg 160w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><p id=\"caption-attachment-17352\" class=\"wp-caption-text\">Example of a lattice structure designed using Dassault Syst\u00e8mes&#8217; CATIA software | Credits: Dassault Syst\u00e8mes<\/p><\/div>\n<h3 style=\"text-align: left;\"><strong>What is the impact of DfAM techniques on post-processing?<\/strong><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">For the majority of users, <a href=\"https:\/\/www.3dnatives.com\/en\/optimise-post-processing-3d-printing-expert-advice-220820195\/\">post-processing<\/a> is often considered a time-consuming, and difficult process. This is why it is important to minimize these steps as much as possible, from the very beginning of the design process. Ravi Kunju explains that there are three main types of post-treatment for 3D printing: thermal, mechanical and thermo-mechanical. \u201c<\/span><i><span style=\"font-weight: 400;\">Thermal post-processing relieves the part of residual stresses and, in some cases, alters the grain structure.\u00a0 Mechanical post-processing removes the support structure, and finish\/drill\/mill holes etc. Thermo-mechanical post-processing could be like hot iso-static pressing (HIP).\u201d<\/span><\/i><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Actually, Daniel Pyzak advises reducing the number of 3D printing supports (or even eliminating them), especially in metal additive manufacturing. He adds: &#8220;<\/span><i><span style=\"font-weight: 400;\">Another way is to integrate these supports (this is the job of the designer, not that of the machine operator) into the design of the part itself. Here, no need to remove them! Today, there are very few parts being designed in this way, but it\u2019s definitely a promising idea<\/span><\/i><span style=\"font-weight: 400;\">.\u201d<\/span><\/p>\n<div id=\"attachment_17351\" style=\"width: 710px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-17351\" class=\"size-full wp-image-17351\" src=\"https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/DfAM_3.jpg\" alt=\"Design for Additive Manufacturing\" width=\"700\" height=\"400\" srcset=\"https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/DfAM_3.jpg 700w, https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/DfAM_3-300x171.jpg 300w, https:\/\/www.3dnatives.com\/en\/wp-content\/uploads\/sites\/2\/DfAM_3-160x91.jpg 160w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><p id=\"caption-attachment-17351\" class=\"wp-caption-text\">Another example of the results of generative design, consolidating 8 components into 1 part | Credits: Autodesk<\/p><\/div>\n<p style=\"text-align: justify;\">Peter Rogers concludes: &#8220;<em>Bringing in the AM knowledge as early into the initial design process as possible will be the key to best leveraging the hardware. In large organizations that can be difficult, so putting together a working group with people of various backgrounds can help to find new, innovative ways to improve parts and turn what was originally implemented as \u201cthought leadership\u201d technology into an irreplaceable production technology<\/em>.&#8221;<\/p>\n<p><em>*Cover Picture Credits: HP\/Motus<\/em><\/p>\n<p style=\"text-align: justify;\">Was this expert advice useful? Let us know in a comment below or on our\u00a0<a href=\"https:\/\/www.facebook.com\/3Dnatives\/\">Facebook<\/a>\u00a0and\u00a0<a href=\"https:\/\/twitter.com\/3Dnatives_en\/\" target=\"_blank\" rel=\"noopener noreferrer\">Twitter<\/a>\u00a0pages! Sign up for our free weekly\u00a0<a href=\"https:\/\/www.3dnatives.com\/en\/3d-printing-newsletter\/\">Newsletter\u00a0<\/a>to receive all\u00a0 of the latest news about 3D printing straight to your inbox!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>As you will know, a machining piece is not designed in the same way as a 3D printed piece: each manufacturing process is associated with a design technique. In additive manufacturing, there are very specific design rules and tools that&hellip;<\/p>\n","protected":false},"author":6064,"featured_media":17354,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"categories":[44],"tags":[],"class_list":["post-17344","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-expert-advice"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.3dnatives.com\/en\/wp-json\/wp\/v2\/posts\/17344","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.3dnatives.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.3dnatives.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.3dnatives.com\/en\/wp-json\/wp\/v2\/users\/6064"}],"replies":[{"embeddable":true,"href":"https:\/\/www.3dnatives.com\/en\/wp-json\/wp\/v2\/comments?post=17344"}],"version-history":[{"count":2,"href":"https:\/\/www.3dnatives.com\/en\/wp-json\/wp\/v2\/posts\/17344\/revisions"}],"predecessor-version":[{"id":18564,"href":"https:\/\/www.3dnatives.com\/en\/wp-json\/wp\/v2\/posts\/17344\/revisions\/18564"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.3dnatives.com\/en\/wp-json\/wp\/v2\/media\/17354"}],"wp:attachment":[{"href":"https:\/\/www.3dnatives.com\/en\/wp-json\/wp\/v2\/media?parent=17344"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.3dnatives.com\/en\/wp-json\/wp\/v2\/categories?post=17344"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.3dnatives.com\/en\/wp-json\/wp\/v2\/tags?post=17344"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}