{"id":64269,"date":"2024-04-08T12:57:44","date_gmt":"2024-04-08T04:57:44","guid":{"rendered":"https:\/\/xometry.asia\/?p=64269"},"modified":"2025-05-30T20:34:23","modified_gmt":"2025-05-30T12:34:23","slug":"3d-technologies-comparison-sla-vs-fdm-2","status":"publish","type":"post","link":"https:\/\/staging-wp.xometry.asia\/en\/3d-technologies-comparison-sla-vs-fdm-2\/","title":{"rendered":"3D Technologies Comparison: SLA vs. FDM"},"content":{"rendered":"\n<p>No matter how many new <a href=\"https:\/\/xometry.asia\/en\/3d-printing\/\">3D printing technologies<\/a> emerge over time, stereolithography (SLA) and fused deposition modeling (FDM) remain popular additive manufacturing processes. This article is aimed at providing a comprehensive overview and comparison between both the processes which belong to different 3D printing categories.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-basic-knowledge-about-3d-printing-technologies\">Basic knowledge about 3D printing technologies<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-fused-deposition-modeling-fdm\">Fused deposition modeling (FDM)<\/h3>\n\n\n\n<p><a href=\"https:\/\/xometry.asia\/en\/fdm-3d-printing\/\">Fused deposition modeling<\/a> (FDM) is an extrusion-based 3D printing technology. The build materials used in FDM are thermoplastic polymers and come in a filament form. In FDM, a part is manufactured by selectively depositing melted material layer by layer in a path defined by the CAD model. Due to its high accuracy, low cost and large material selection, FDM is one of the most widely used 3D printing technologies across the world.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/xometry.asia\/wp-content\/uploads\/\/2021\/11\/fdm-3d-printing.svg\" alt=\"FDM 3D printing icon\" class=\"wp-image-45478\" style=\"width:150px;height:150px\"\/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\">Stereolithography (SLA)<\/h3>\n\n\n\n<p><a href=\"https:\/\/xometry.asia\/en\/sla-3d-printing\/\">Stereolithography<\/a> (SLA) belongs to the VAT polymerisation category of 3D printing that utilizes light-curable thermoset resins to build parts. It is a powerful additive manufacturing technology that produces extremely accurate and high-resolution parts that are capable of being used directly in end-use, low-volume production, or <a href=\"https:\/\/xometry.asia\/en\/rapid-prototyping\/\">rapid prototyping<\/a>. The main advantage of SLA is its ability to produce smooth finished parts and less wastage of material.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/xometry.asia\/wp-content\/uploads\/\/2021\/11\/sla-3d-printing.svg\" alt=\"SLA 3D printing icon\" class=\"wp-image-45499\" style=\"width:172px;height:172px\"\/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">Build materials for 3D printing<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">FDM materials<\/h3>\n\n\n\n<p>Amongst the most widely rigid plastics used for fused deposition modeling, Xometry offers ABS\u3001ASA\u3001\u5c3c\u9f99PA12CF\u3001PC\u3001PC-ABS\u3001PC-FR\u3001PLA\u3001PETG\u3001PEEK\u3001PEKK\u3001PA6\/66\u3001PA6-CF\u3001HPPA-CF\u3001HPPA-GF\u3001ABS-GF\u3001PET-CF\u3001PET-GF\u3001ULTEM 10105, etc.<br>For example, ASA, an amorphous thermoplastic with improved weather resistance, is widely used in prototyping thanks to its excellent mechanical properties. Plus, it is available in a large variety of colours.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">SLA materials<\/h3>\n\n\n\n<p>Xometry offers rigid plastics such as ABS SL 7820, PC \u2013 Like Heat Resist Translucent, Xtreme Polypropylene, and silicone rubbers such as True Silicone.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">SLA vs. FDM: Main comparisons<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Cost-effectiveness<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-sla-3d-printing\">SLA 3D printing<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>More expensive than MJF and FDM that are also widely used for prototyping:<\/strong> This is mostly due to more expensive photochemical processes and materials.<\/li>\n\n\n\n<li><strong>Colouring costs are incurred as extra on post-processing: <\/strong>Not many colours are available in the market. The prints come out in grey, black, white or transparent.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-fdm-3d-printing\">FDM 3D printing<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>One of the cheapest options for 3D printing:<\/strong> When the requirement is from a unit to a small batch, FDM is the ideal option compared to its more expensive counterparts like SLA or SLS.<\/li>\n\n\n\n<li><strong>The build material is cheaper and widely available:<\/strong> It makes the prototyping, re-prototyping and improvements in design less expensive to print than with other technologies.<\/li>\n\n\n\n<li><strong>Direct <a href=\"https:\/\/xometry.asia\/colour-3d-printing-options-overview\/\">colour 3D printing<\/a> is possible: <\/strong>Colouring costs are also reduced as the prints come out coloured directly from the printer without the fuss of additional post-processing.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/xometry.asia\/wp-content\/uploads\/2021\/03\/DSC_0930-scaled.jpg\" alt=\"Coloured FDM 3D printing parts created at Xometry\" class=\"wp-image-45561\" style=\"width:555px;height:370px\"\/><figcaption class=\"wp-element-caption\"><em>Coloured FDM 3D printing parts created at Xometry<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\">Details and precision<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-sla-3d-printing-0\">SLA 3D printing<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Very thin layer thickness (min 0.02 mm):<\/strong> With the very thin laser beam, it is possible to obtain minute complex features with a very realistic finish.<\/li>\n\n\n\n<li><strong>Printing small parts with high definition and very large parts:<\/strong> It is possible to print parts of various sizes (up to 736 x 635 x 533 mm) while maintaining high precision and tight tolerances.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-fdm-3d-printing-0\">FDM 3D printing<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>The layer thickness is ~0.05- 0.3mm:<\/strong> A good option for prototyping where very small details are not important.<\/li>\n\n\n\n<li><strong>Low dimensional accuracy:<\/strong> Due to the nature of melted plastic, FDM sweats small features and hence it is not suitable for parts with intricate details.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Surface finish<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-sla-3d-printing-1\">SLA 3D printing<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>A glass-like surface finish:<\/strong> Since SLA utilizes resin materials, its surface finish can replace normal prototypes made from MJF or SLS.&nbsp;<\/li>\n\n\n\n<li><strong>A high-quality surface finish with high definition: <\/strong>The external, as well as internal details, can be seen perfectly. This is why SLA is also good for functional prototypes for a general overview.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-fdm-3d-printing-1\">FDM 3D printing<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>A much visible layer stepping:<\/strong> Since FDM works by dropping molten plastic layer by layer, the stair casing is much more evident, and parts have a rough surface.<\/li>\n\n\n\n<li><strong>A layer adhesion mechanism:<\/strong> It makes FDM parts anisotropic. Post-processing is required to make the surface smooth and costs more.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Choice of materials<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-sla-3d-printing-2\">SLA 3D printing<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>A limited selection of materials:<\/strong> SLA technology only utilises thermosetting resins which make the technology very limited with build materials.<\/li>\n\n\n\n<li>Biocompatible and food-grade materials: SLA is one of the best technologies to print medical implants or food containers, with resins such as True Silicone.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-fdm-3d-printing-2\">FDM 3D printing<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>A large variety of plastic filaments available<\/strong>: From low strength to high strength materials (PP, TPU, Nylon PA, ABS, PETG, PLA, PC in the ascending order of tensile strength), FDM has an extensive list of materials with which it can print.<\/li>\n\n\n\n<li><strong>Good material availability: <\/strong>The materials are very often used and hence easily available in the market for a low price.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">SLA vs. FDM for industrial\/desktop 3D printing<\/h2>\n\n\n\n<p>FDM and SLA offer two variants of their printers: Industrial 3d printers and desktop 3D printers. The former are extensively used for industrial applications such as end-use parts and the latter is used by hobbyists and for small applications.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-industrial-printers-comparison\">Industrial printers comparison<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/xometry.asia\/en\/fdm-3d-printing-desktop-vs-industrial\/\"><strong>FDM Industrial 3D printing<\/strong><\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/xometry.asia\/en\/sla-3d-printing-desktop-vs-industrial\/\"><strong>SLA Industrial 3D printing<\/strong><\/a><\/td><\/tr><tr><td><strong>Price of printers<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">\u20ac\u20ac\u20ac<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u20ac\u20ac\u20ac\u20ac<\/td><\/tr><tr><td><strong>Build volume<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">200 x 200 x 300 mm to 914 x 610 x 914 mm<\/td><td class=\"has-text-align-center\" data-align=\"center\">2100 x 800 x 700 mm<\/td><\/tr><tr><td><strong>Resolution<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">~3-16 microns<\/td><td class=\"has-text-align-center\" data-align=\"center\">~25-100 microns<\/td><\/tr><tr><td><strong>Speed<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">High<\/td><td class=\"has-text-align-center\" data-align=\"center\">High<\/td><\/tr><tr><td><strong>Accuracy<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">High<\/td><td class=\"has-text-align-center\" data-align=\"center\">High<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"400\" src=\"https:\/\/xometry.asia\/wp-content\/uploads\/2024\/04\/1748608324-professional-production-of-parts-on-strateo-3d-3d-printer.jpg\" alt=\"\" class=\"wp-image-70258\" style=\"width:468px;height:312px\" srcset=\"https:\/\/staging-wp.xometry.asia\/wp-content\/uploads\/2024\/04\/1748608324-professional-production-of-parts-on-strateo-3d-3d-printer.jpg 600w, https:\/\/staging-wp.xometry.asia\/wp-content\/uploads\/2024\/04\/1748608324-professional-production-of-parts-on-strateo-3d-3d-printer-480x320.jpg 480w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><figcaption class=\"wp-element-caption\"><em>Strateo 3D industrial FDM 3D printer<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"h-desktop-printers-comparison\">Desktop printers comparison<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/xometry.asia\/fdm-3d-printing-desktop-vs-industrial\/\"><strong>FDM Desktop 3D printing<\/strong><\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/xometry.asia\/sla-3d-printing-desktop-vs-industrial\/\"><strong>SLA Desktop 3D printing<\/strong><\/a><\/td><\/tr><tr><td><strong>Price of printers<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">\u20ac<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u20ac<\/td><\/tr><tr><td><strong>Build volume<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">10 x 10 x 10 mm to 200 x 200 x 200 mm<\/td><td class=\"has-text-align-center\" data-align=\"center\">145 X 145 x 175 mm<\/td><\/tr><tr><td><strong>Resolution<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">~1000 microns(X-Y) ~500 microns (z)<\/td><td class=\"has-text-align-center\" data-align=\"center\">~25-200 microns<\/td><\/tr><tr><td><strong>Speed<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">Low<\/td><td class=\"has-text-align-center\" data-align=\"center\">Medium<\/td><\/tr><tr><td><strong>Accuracy<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">Medium<\/td><td class=\"has-text-align-center\" data-align=\"center\">Medium<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"400\" src=\"https:\/\/xometry.asia\/wp-content\/uploads\/2024\/04\/1748608447-strateo-3d.jpg\" alt=\"\" class=\"wp-image-70264\" style=\"width:504px;height:336px\" srcset=\"https:\/\/staging-wp.xometry.asia\/wp-content\/uploads\/2024\/04\/1748608447-strateo-3d.jpg 600w, https:\/\/staging-wp.xometry.asia\/wp-content\/uploads\/2024\/04\/1748608447-strateo-3d-480x320.jpg 480w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><figcaption class=\"wp-element-caption\"><em>Strateo 3D IDEX420 3D printer<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p>Xometry Asia offers <a href=\"https:\/\/xometry.asia\/en\/sla-3d-printing\/\">SLA<\/a> and<a href=\"https:\/\/xometry.asia\/en\/fdm-3d-printing\/\"> FDM<\/a> services online, for on-demand 3D printing projects, for both prototypes and large batches. With a network of more than 10,000 partners worldwide, Xometry is able to deliver 3D printing parts in up to 3 days. Upload your CAD files to <a href=\"https:\/\/get.xometry.asia\/\">Xometry Instant Quoting Engine <\/a>to get an instant quote with various manufacturing options available for SLA and FDM 3D printing.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>No matter how many new 3D printing technologies emerge over time, stereolithography (SLA) and fused deposition modeling (FDM) remain popular additive manufacturing processes. This article is aimed at providing a comprehensive overview and comparison between both the processes which belong to different 3D printing categories. Basic knowledge about 3D printing technologies Fused deposition modeling (FDM) [&hellip;]<\/p>\n","protected":false},"author":37,"featured_media":58943,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[30,39],"tags":[],"class_list":["post-64269","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-3d-printing"],"acf":[],"publishpress_future_action":{"enabled":false,"date":"2026-09-13 20:35:58","action":"change-status","newStatus":"draft","terms":[],"taxonomy":"category","extraData":[]},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/staging-wp.xometry.asia\/en\/wp-json\/wp\/v2\/posts\/64269","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/staging-wp.xometry.asia\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/staging-wp.xometry.asia\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/staging-wp.xometry.asia\/en\/wp-json\/wp\/v2\/users\/37"}],"replies":[{"embeddable":true,"href":"https:\/\/staging-wp.xometry.asia\/en\/wp-json\/wp\/v2\/comments?post=64269"}],"version-history":[{"count":5,"href":"https:\/\/staging-wp.xometry.asia\/en\/wp-json\/wp\/v2\/posts\/64269\/revisions"}],"predecessor-version":[{"id":65751,"href":"https:\/\/staging-wp.xometry.asia\/en\/wp-json\/wp\/v2\/posts\/64269\/revisions\/65751"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/staging-wp.xometry.asia\/en\/wp-json\/wp\/v2\/media\/58943"}],"wp:attachment":[{"href":"https:\/\/staging-wp.xometry.asia\/en\/wp-json\/wp\/v2\/media?parent=64269"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/staging-wp.xometry.asia\/en\/wp-json\/wp\/v2\/categories?post=64269"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/staging-wp.xometry.asia\/en\/wp-json\/wp\/v2\/tags?post=64269"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}