{"id":22395,"date":"2025-06-10T17:20:11","date_gmt":"2025-06-10T15:20:11","guid":{"rendered":"https:\/\/xometry.pro\/articles\/3d-printing-sla-design-tips\/"},"modified":"2025-06-10T17:20:12","modified_gmt":"2025-06-10T15:20:12","slug":"3d-printing-sla-design-tips","status":"publish","type":"articles","link":"https:\/\/xometry.pro\/en-tr\/articles\/3d-printing-sla-design-tips\/","title":{"rendered":"SLA 3D Printing Design Guidelines: 8 Essential Tips"},"content":{"rendered":"<div role=\"navigation\" aria-label=\"Table of Contents\" class=\"simpletoc wp-block-simpletoc-toc\"><h2 class=\"simpletoc-title\">Table of Contents<\/h2>\n<ul class=\"simpletoc-list\">\n<li><a href=\"#h-1-respect-sla-minimum-feature-sizes\">1. Respect SLA Minimum Feature Sizes<\/a>\n\n<\/li>\n<li><a href=\"#2-design-with-appropriate-wall-thickness\">2. Design with Appropriate Wall Thickness<\/a>\n\n<\/li>\n<li><a href=\"#3-account-for-sla-tolerances-in-mating-parts\">3. Account for SLA Tolerances in Mating Parts<\/a>\n\n<\/li>\n<li><a href=\"#4-hollow-sla-parts-to-save-resin-safely\">4. Hollow SLA Parts to Save Resin Safely<\/a>\n\n<\/li>\n<li><a href=\"#5-round-internal-and-external-corners\">5. Round Internal and External Corners<\/a>\n\n<\/li>\n<li><a href=\"#6-add-clear-text-and-markings\">6. Add Clear Text and Markings<\/a>\n\n<\/li>\n<li><a href=\"#7-minimize-and-strategically-place-supports\">7. Minimize and Strategically Place Supports<\/a>\n\n<\/li>\n<li><a href=\"#8-orient-parts-to-minimize-supports-and-improve-finish\">8. Orient Parts to Minimize Supports and Improve Finish<\/a>\n\n<\/li>\n<li><a href=\"#avoid-cupping-in-sla-design\">Avoid Cupping in SLA Design<\/a>\n\n<\/li>\n<li><a href=\"#sla-3d-printing-specifications-reference-guide\">SLA 3D Printing Specifications Reference Guide<\/a>\n\n<\/li>\n<li><a href=\"#get-your-highquality-sla-3dprinted-parts-at-xometry\">Get Your High-Quality SLA 3D-Printed Parts at Xometry<\/a>\n<\/li><\/ul><\/div>\n\n\n<p>Stereolithography (SLA) is a resin-based 3D printing technology that uses a UV laser to selectively cure liquid photopolymer resin layer by layer. SLA stands out for its ability to produce parts with extremely fine details, smooth surfaces, and tight tolerances\u2014often requiring little to no post-processing. It supports various materials, including general-purpose resins, high-temperature resins, and transparent options.&nbsp;<\/p>\n\n\n\n<p>These properties make it ideal for prototyping, master patterns for molding, dental models, small mechanical components, and aesthetic design parts. However, SLA parts are generally less UV-stable than those made with thermoplastic-based processes.&nbsp;<\/p>\n\n\n    <aside class=\"article-content-aside\">\r\n        <a href=\"https:\/\/xometry.pro\/en-tr\/articles\/3d-printing-sla-overview\/\" class=\"aside-image sidebar__aside-image\"><img decoding=\"async\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/SLA-3D-printed-parts.webp\" alt=\"SLA 3D printed parts\"><\/a><a href=\"https:\/\/xometry.pro\/en-tr\/articles\/3d-printing-sla-overview\/\" class=\"aside-link\">Stereolithography (SLA) 3D printing Technology overview<\/a>    <\/aside>\r\n    \n\n    <section class=\"article-author-block\">\r\n        <div class=\"article-content-wrapper\">\r\n            <div class=\"author-block\">\r\n                                        <div class=\"author-info\">\r\n                            <h4 class=\"author-name\">Nikolaus Mroncz<\/h4>\r\n                            <p class=\"author-position\">Head of Sales Engineering at Xometry<\/p>\r\n                        <\/div>\r\n                                    <\/div>\r\n                <div class=\"quote-block\" style=\"border-color: #0E6AED;\">\r\n                    <p>It\u2019s good to keep in mind that despite the great surface quality, SLA parts have their limitations. Over time, exposure to sunlight can make them brittle, and lighter-colored parts\u2014especially white or clear\u2014may yellow. While you can apply a quick clear coating to reduce this aging effect, there are still design tips worth sharing to get clean results, reduce failures, and make the most of what SLA has to offer.<\/p>\n                <\/div>\r\n        <\/div>\r\n    <\/section>\r\n\n\n<h2 class=\"wp-block-heading\" id=\"h-1-respect-sla-minimum-feature-sizes\"><strong>1. Respect SLA Minimum Feature Sizes<\/strong><\/h2>\n\n\n<p>While SLA 3D printing excels at fine details, extremely small features can still lead to issues during production. Thin pins may become fragile, narrow slots can be poorly defined, and small holes might seal shut due to resin accumulation during the printing process. These defects are often the result of pushing geometry below reliable limits.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<p><strong>Rule of Thumb:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Keep a minimum reliable pin diameter of <strong>1 mm<\/strong>.<\/li>\n\n\n\n<li>A minimum slot size of <strong>0.5 mm<\/strong> is recommended, but the bigger, the better.<\/li>\n\n\n\n<li>Keep a minimum printable feature size of <strong>0.2 mm<\/strong>.<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-large is-resized\"><div class=\"wp-block-image__wrap\"><img decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/minimum-feature-size-icon-1024x1024.png\" alt=\"Minimum feature size icon\" class=\"wp-image-104032\" style=\"max-width:224px;height:auto\" srcset=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/minimum-feature-size-icon-1024x1024.png 1024w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/minimum-feature-size-icon-300x300.png 300w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/minimum-feature-size-icon-150x150.png 150w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/minimum-feature-size-icon-768x768.png 768w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/minimum-feature-size-icon-1536x1536.png 1536w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/minimum-feature-size-icon-2048x2048.png 2048w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/minimum-feature-size-icon-84x84.png 84w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/minimum-feature-size-icon-102x102.png 102w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/minimum-feature-size-icon.png\" data-fancybox=\"gallery-22395\" data-caption=\"\" aria-label=\"Open full image\"><img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/minimum-feature-size-icon.png\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"\" loading=\"lazy\" decoding=\"async\"><svg class=\"wp-block-image__fancy-box-button-icon\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\" fill=\"none\" aria-hidden=\"true\">\r\n               <path d=\"M0 2V6H2V2H6V0H2C0.895 0 0 0.895 0 2ZM2 12H0V16C0 17.105 0.895 18 2 18H6V16H2V12ZM16 16H12V18H16C17.105 18 18 17.105 18 16V12H16V16ZM16 0H12V2H16V6H18V2C18 0.895 17.105 0 16 0Z\" fill=\"#092C47\"\/>\r\n             <\/svg><\/a><\/div><\/figure>\n<\/div>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"2-design-with-appropriate-wall-thickness\"><strong>2. Design with Appropriate Wall Thickness<\/strong><\/h2>\n\n\n<p>Wall thickness is one of the most crucial factors in SLA 3D printing design. Too thin walls may make the parts fragile or possibly break during printing. On the other hand, too thick ones lead to material wastage and some defects such as warping.&nbsp;<\/p>\n\n\n    <aside class=\"article-content-aside\">\r\n        <a href=\"https:\/\/xometry.pro\/en-tr\/topic\/wall-thicknesses-for-sla-100-mm-high-any-tips\/\" class=\"aside-image sidebar__aside-image\"><img decoding=\"async\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/11\/community-icon-1.svg\" alt=\"\"><\/a><a href=\"https:\/\/xometry.pro\/en-tr\/topic\/wall-thicknesses-for-sla-100-mm-high-any-tips\/\" class=\"aside-link\">Wall thicknesses for SLA (100 mm high) &#8211; any tips?<\/a>    <\/aside>\r\n    \n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<p>Additionally, nonuniform walls cool at different rates, with thinner sections cooling faster than thicker ones. This means the walls should be correctly sized and thickness maintained uniformly throughout the profile to avoid cracking, warping, and other defects.&nbsp;<\/p>\n\n\n\n<p>Unsupported walls, which are at a higher risk of warping or breaking off, should be thicker. They can also be designed with fillet bases to enhance their mechanical strength. Supported walls are less likely to warp, meaning they can be thinner, but there should be a limit.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-large\"><div class=\"wp-block-image__wrap\"><img decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Maximum-Wall-Thickness-Icon-1-1024x1024.png\" alt=\"Maximum Wall Thickness Icon\" class=\"wp-image-103972\" srcset=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Maximum-Wall-Thickness-Icon-1-1024x1024.png 1024w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Maximum-Wall-Thickness-Icon-1-300x300.png 300w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Maximum-Wall-Thickness-Icon-1-150x150.png 150w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Maximum-Wall-Thickness-Icon-1-768x768.png 768w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Maximum-Wall-Thickness-Icon-1-84x84.png 84w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Maximum-Wall-Thickness-Icon-1-102x102.png 102w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Maximum-Wall-Thickness-Icon-1.png 1146w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Maximum-Wall-Thickness-Icon-1.png\" data-fancybox=\"gallery-22395\" data-caption=\"\" aria-label=\"Open full image\"><img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Maximum-Wall-Thickness-Icon-1.png\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"\" loading=\"lazy\" decoding=\"async\"><svg class=\"wp-block-image__fancy-box-button-icon\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\" fill=\"none\" aria-hidden=\"true\">\r\n               <path d=\"M0 2V6H2V2H6V0H2C0.895 0 0 0.895 0 2ZM2 12H0V16C0 17.105 0.895 18 2 18H6V16H2V12ZM16 16H12V18H16C17.105 18 18 17.105 18 16V12H16V16ZM16 0H12V2H16V6H18V2C18 0.895 17.105 0 16 0Z\" fill=\"#092C47\"\/>\r\n             <\/svg><\/a><\/div><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p><strong>Rule of Thumb:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Keep the minimum recommended thickness of <strong>0.6 mm<\/strong> for unsupported walls.<\/li>\n\n\n\n<li>Keep the minimum recommended thickness of <strong>0.4 mm<\/strong> for supported walls.<\/li>\n<\/ul>\n\n\n<h2 class=\"wp-block-heading\" id=\"3-account-for-sla-tolerances-in-mating-parts\"><strong>3. Account for SLA Tolerances in Mating Parts<\/strong><\/h2>\n\n\n<p>Although SLA 3D printing can achieve high precision, it is still crucial to mind tolerances when designing parts. Factor in tolerances and account for shrinkage during curing.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<p>This is the only way to comply with tight tolerances and ensure parts function properly. Adequate clearance should be designed between mating parts to prevent them from fusing when being printed. This also aids in the seamless assembly of parts.<\/p>\n\n\n\n<p><strong>Rule of Thumb:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ensure minimum clearances of <strong>0.5 mm<\/strong> between moving parts and assembly.<\/li>\n\n\n\n<li>Use<strong> 0.1 mm<\/strong> clearance to give a push or snug fit.<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-large\"><div class=\"wp-block-image__wrap\"><img decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/General-Tolerance-Icon-1024x1024.png\" alt=\"\" class=\"wp-image-105236\" srcset=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/General-Tolerance-Icon-1024x1024.png 1024w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/General-Tolerance-Icon-300x300.png 300w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/General-Tolerance-Icon-150x150.png 150w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/General-Tolerance-Icon-768x768.png 768w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/General-Tolerance-Icon-1536x1536.png 1536w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/General-Tolerance-Icon-2048x2048.png 2048w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/General-Tolerance-Icon-84x84.png 84w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/General-Tolerance-Icon-102x102.png 102w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/General-Tolerance-Icon.png\" data-fancybox=\"gallery-22395\" data-caption=\"\" aria-label=\"Open full image\"><img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/General-Tolerance-Icon.png\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"\" loading=\"lazy\" decoding=\"async\"><svg class=\"wp-block-image__fancy-box-button-icon\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\" fill=\"none\" aria-hidden=\"true\">\r\n               <path d=\"M0 2V6H2V2H6V0H2C0.895 0 0 0.895 0 2ZM2 12H0V16C0 17.105 0.895 18 2 18H6V16H2V12ZM16 16H12V18H16C17.105 18 18 17.105 18 16V12H16V16ZM16 0H12V2H16V6H18V2C18 0.895 17.105 0 16 0Z\" fill=\"#092C47\"\/>\r\n             <\/svg><\/a><\/div><\/figure>\n<\/div>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"4-hollow-sla-parts-to-save-resin-safely\"><strong>4. Hollow SLA Parts to Save Resin Safely<\/strong><\/h2>\n\n\n<p>SLA can produce fully solid parts, but in many cases, hollowing the design helps reduce material usage and printing time. However, hollow sections must be designed carefully to maintain structural integrity and avoid common printing issues. Thin walls or fully enclosed cavities can trap uncured resin inside the part, leading to internal pressure imbalances that may cause cracks or even part failure. In addition, hollow or concave shapes printed face-up on the build platform can create a suction effect against the resin tank, which may cause the part to detach during printing.<\/p>\n\n\n\n<p>To avoid these issues, always include drainage holes to let excess resin escape and minimize suction forces. For fully enclosed features like spheres or cavities, consider either filling the hollow or placing at least one drainage hole in each hollow section.<\/p>\n\n\n\n<p><strong>Rule of Thumb:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Keep a minimum wall thickness of hollow sections of<strong> 2 mm<\/strong>.<\/li>\n\n\n\n<li>Drainage holes should be at least <strong>3.5 mm<\/strong> in diameter.<\/li>\n\n\n\n<li>Include at least one drainage hole per hollow section.<\/li>\n<\/ul>\n\n\n<h2 class=\"wp-block-heading\" id=\"5-round-internal-and-external-corners\"><strong>5. Round Internal and External Corners<\/strong><\/h2>\n\n\n<p>Sharp corners and edges on parts increase stress concentrations. This increases the chances of cracks forming and ultimate part failures. Rounding both internal and external corners distributes stress evenly through the structure. Make the radii as large as possible to encourage efficient stress distribution in SLA 3D printed parts.<\/p>\n\n\n\n<p><strong>Rule of Thumb:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Aim for a minimum radius of about <strong>0.5 mm<\/strong> for the corners.<\/li>\n\n\n\n<li>The radius of an internal corner should be at least half the thickness of the associated wall.<\/li>\n\n\n\n<li>The radius of the external corners should be at least 1.5 times the thickness of the associated walls.<\/li>\n<\/ul>\n\n\n<h2 class=\"wp-block-heading\" id=\"6-add-clear-text-and-markings\"><strong>6. Add Clear Text and Markings<\/strong><\/h2>\n\n\n<p>SLA is well-suited for adding small logos, labels, or functional text directly onto a part\u2019s surface. Embossed or engraved text that\u2019s too fine can lose contrast or become unreadable due to overcuring or resin bleed.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<p>To ensure legibility, text should have enough depth or height to withstand minor surface smoothing while still remaining crisp and visible in the final part.<\/p>\n\n\n\n<p><strong>Rule of Thumb:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Embossed features must be at least <strong>0.5 mm<\/strong> in height and <strong>0.4 mm<\/strong> wide.<\/li>\n\n\n\n<li>Engraved features require a minimum depth of <strong>0.5 mm<\/strong> and a width of <strong>0.5 mm<\/strong>.<\/li>\n\n\n\n<li>Minimum font size: <strong>1 mm<\/strong> character height, but 2 mm or higher is recommended<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-large\"><div class=\"wp-block-image__wrap\"><img decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Embossing-Height-Icon-1024x1024.png\" alt=\"Embossing Height Icon\" class=\"wp-image-104056\" srcset=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Embossing-Height-Icon-1024x1024.png 1024w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Embossing-Height-Icon-300x300.png 300w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Embossing-Height-Icon-150x150.png 150w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Embossing-Height-Icon-768x768.png 768w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Embossing-Height-Icon-1536x1536.png 1536w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Embossing-Height-Icon-2048x2048.png 2048w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Embossing-Height-Icon-84x84.png 84w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Embossing-Height-Icon-102x102.png 102w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Embossing-Height-Icon.png\" data-fancybox=\"gallery-22395\" data-caption=\"\" aria-label=\"Open full image\"><img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Embossing-Height-Icon.png\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"\" loading=\"lazy\" decoding=\"async\"><svg class=\"wp-block-image__fancy-box-button-icon\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\" fill=\"none\" aria-hidden=\"true\">\r\n               <path d=\"M0 2V6H2V2H6V0H2C0.895 0 0 0.895 0 2ZM2 12H0V16C0 17.105 0.895 18 2 18H6V16H2V12ZM16 16H12V18H16C17.105 18 18 17.105 18 16V12H16V16ZM16 0H12V2H16V6H18V2C18 0.895 17.105 0 16 0Z\" fill=\"#092C47\"\/>\r\n             <\/svg><\/a><\/div><\/figure>\n<\/div>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"7-minimize-and-strategically-place-supports\"><strong>7. Minimize and Strategically Place Supports<\/strong><\/h2>\n\n\n<p>Support structures are discouraged in SLA design because they leave footprints on the parts.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<p>However, there are instances when they are necessary, such as walls and overhangs. Support structures are easy to add since most slicing tools can detect their rightful positions.<\/p>\n\n\n\n<p>Don\u2019t add support structures unnecessarily. If it is necessary to print with support structures, follow the recommended minimum length and angle for such features. Going beyond the limits can cause the overhanging features to break off during peeling.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-large is-resized\"><div class=\"wp-block-image__wrap\"><img decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/support-structure-icon-3-1024x1024.png\" alt=\"Support structure icon\" class=\"wp-image-103996\" style=\"max-width:233px;height:auto\" srcset=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/support-structure-icon-3-1024x1024.png 1024w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/support-structure-icon-3-300x300.png 300w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/support-structure-icon-3-150x150.png 150w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/support-structure-icon-3-768x768.png 768w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/support-structure-icon-3-84x84.png 84w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/support-structure-icon-3-102x102.png 102w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/support-structure-icon-3.png 1146w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/support-structure-icon-3.png\" data-fancybox=\"gallery-22395\" data-caption=\"\" aria-label=\"Open full image\"><img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/support-structure-icon-3.png\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"\" loading=\"lazy\" decoding=\"async\"><svg class=\"wp-block-image__fancy-box-button-icon\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\" fill=\"none\" aria-hidden=\"true\">\r\n               <path d=\"M0 2V6H2V2H6V0H2C0.895 0 0 0.895 0 2ZM2 12H0V16C0 17.105 0.895 18 2 18H6V16H2V12ZM16 16H12V18H16C17.105 18 18 17.105 18 16V12H16V16ZM16 0H12V2H16V6H18V2C18 0.895 17.105 0 16 0Z\" fill=\"#092C47\"\/>\r\n             <\/svg><\/a><\/div><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p><strong>Rule of Thumb:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Unsupported overhangs must not be more than <strong>2 mm<\/strong> in length and must be at a minimum angle of<strong> 30\u00b0<\/strong>.<\/li>\n\n\n\n<li>Place supports under overhangs, bridges, and any features that may deform or lose shape due to lack of support during printing.<\/li>\n\n\n\n<li>Use smaller touchpoints for support to reduce marks on the finished part.<\/li>\n<\/ul>\n\n\n<h2 class=\"wp-block-heading\" id=\"8-orient-parts-to-minimize-supports-and-improve-finish\"><strong>8. Orient Parts to Minimize Supports and Improve Finish<\/strong><\/h2>\n\n\n<p>In SLA 3D printing, part orientation affects print success, mechanical strength, and the visibility of support marks. Well-oriented parts are easier to print, require fewer supports, and are less prone to failures like warping, suction issues, or weak adhesion. Orienting parts at an angle also helps resin flow off the surface more evenly and reduces the risk of cupping or internal stress buildup.<\/p>\n\n\n\n<p><strong>Rule of Thumb:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Position parts to reduce overhangs that require support.<\/li>\n\n\n\n<li>Avoid large flat surfaces parallel to the build platform.<\/li>\n\n\n\n<li>Angle the part between <strong>30\u00b0\u201345\u00b0<\/strong> to promote adhesion and reduce print stress<\/li>\n<\/ul>\n\n\n<h2 class=\"wp-block-heading\" id=\"avoid-cupping-in-sla-design\"><strong>Avoid Cupping in SLA Design<\/strong><\/h2>\n\n\n<p>A common issue specific to the inverted SLA printing process is cupping. This occurs when a hollow or concave feature\u2014such as a recessed pocket or an enclosed cavity\u2014faces downward toward the resin vat. As the part is peeled from the resin tank layer by layer, the cavity can trap air or uncured resin, creating a suction effect.<\/p>\n\n\n\n<p>This pressure differential may lead to a blowout, where internal pressure causes a wall to rupture outward during printing. In severe cases, cupping can damage the part, the resin vat, or even cause resin spills inside the machine.<\/p>\n\n\n\n<p>To reduce the risk:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Avoid cup-like geometries with downward-facing openings.<\/li>\n\n\n\n<li>Add drainage holes to vent enclosed volumes.<\/li>\n\n\n\n<li>Reorient parts so that hollow or concave surfaces don\u2019t face directly toward the vat.<\/li>\n<\/ul>\n\n\n<h2 class=\"wp-block-heading\" id=\"sla-3d-printing-specifications-reference-guide\"><strong>SLA 3D Printing Specifications Reference Guide<\/strong><\/h2>\n\n\n<p>The table below provides a quick summary of SLA 3D design specifications at Xometry for various part features. These are all vital to consider during the design phase for high-quality prints.<\/p>\n\n\n    <aside class=\"article-content-aside\">\r\n        <a href=\"https:\/\/xometry.pro\/en-tr\/topic\/layer-thickness-for-fdm-and-sla\/\" class=\"aside-image sidebar__aside-image\"><img decoding=\"async\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/11\/community-icon-1.svg\" alt=\"\"><\/a><a href=\"https:\/\/xometry.pro\/en-tr\/topic\/layer-thickness-for-fdm-and-sla\/\" class=\"aside-link\">Layer thickness for FDM and SLA<\/a>    <\/aside>\r\n    \n\n<div class=\"custom-table-block \" id=\"table-id-158\" >\r\n\t<div class=\"search-input-wrapper\">\r\n\t\t<svg width=\"16\" height=\"16\" viewBox=\"0 0 16 16\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\r\n\t\t\t<path d=\"M15.7812 13.833L12.6659 10.7177C12.5252 10.5771 12.3346 10.499 12.1347 10.499H11.6253C12.4877 9.39596 13.0002 8.00859 13.0002 6.49937C13.0002 2.90909 10.0911 0 6.50083 0C2.91056 0 0.00146484 2.90909 0.00146484 6.49937C0.00146484 10.0896 2.91056 12.9987 6.50083 12.9987C8.01006 12.9987 9.39742 12.4863 10.5004 11.6239V12.1332C10.5004 12.3332 10.5786 12.5238 10.7192 12.6644L13.8345 15.7797C14.1282 16.0734 14.6032 16.0734 14.8938 15.7797L15.778 14.8954C16.0718 14.6017 16.0718 14.1267 15.7812 13.833ZM6.50083 10.499C4.29167 10.499 2.50122 8.71165 2.50122 6.49937C2.50122 4.29021 4.28855 2.49976 6.50083 2.49976C8.70999 2.49976 10.5004 4.28708 10.5004 6.49937C10.5004 8.70852 8.71311 10.499 6.50083 10.499Z\" fill=\"#476175\"\/>\r\n\t\t<\/svg>\r\n\t\t<input type=\"search\" class=\"table-search-input\" id=\"table-search-158\" placeholder=\"Table search\">\r\n\t<\/div>\t\r\n\t<div class=\"table-wrapper\">\r\n\t\t<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 38.7887%;\"><b>Specifications<\/b><\/td>\n<td style=\"width: 61.0825%;\"><b>Details<\/b><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 38.7887%;\"><strong>Maximum build volume<\/strong><\/td>\n<td style=\"width: 61.0825%;\"><span style=\"font-weight: 400;\">Standard: 145 \u00d7 145 \u00d7 185 mm<br \/>\n<\/span><span style=\"font-weight: 400;\">Industrial: 736 x 635 x 533 mm<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 38.7887%;\"><strong>Minimum feature thickness<\/strong><\/td>\n<td style=\"width: 61.0825%;\"><span style=\"font-weight: 400;\">0.20 mm<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 38.7887%;\"><strong>Suggested minimum wall thickness<\/strong><\/td>\n<td style=\"width: 61.0825%;\"><span style=\"font-weight: 400;\">0.4 mm (supported walls), 0.6 mm (unsupported walls)<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 38.7887%;\"><strong>Layer thickness<\/strong><\/td>\n<td style=\"width: 61.0825%;\"><span style=\"font-weight: 400;\">20-100 microns (depending on the printer)<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 38.7887%;\"><strong>General tolerance<\/strong><\/td>\n<td style=\"width: 61.0825%;\"><span style=\"font-weight: 400;\">\u00b10.5% (\u00b10.2 mm) (Standard)<br \/>\n<\/span><span style=\"font-weight: 400;\">\u00b10.5% (\u00b10.15 mm) (Industrial)<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\t<\/div>\r\n<\/div>\r\n<style>\r\n\t.custom-table-block table{\r\n\t\theight: initial!important;\r\n\t}\r\n\t.search-input-wrapper{\r\n\t\tposition: relative;\r\n\t\tmargin-bottom: 24px;\r\n\t}\r\n\t.search-input-wrapper svg{\r\n\t\tposition: absolute;\r\n\t\ttop:50%;\r\n\t\tleft:12px;\r\n\t\ttransform: translateY(-50%);\r\n\t}\r\n\t.table-search-input{\r\n\t\tpadding: 0 0 0 40px;\r\n\t\tborder:1px solid #C1CAD1;\r\n\t\theight: 44px;\r\n\t\twidth: 201px;\r\n\t\tcolor:#092C47;\r\n\t\tfont-family: Open Sans;\r\n\t\tfont-size: 16px;\r\n\t\tfont-weight: 400;\r\n\t\tline-height: 24px;\r\n\t\tletter-spacing: 0em;\r\n\t\ttext-align: left;\r\n\t}\r\n\t.table-search-input::placeholder{\r\n\t\tcolor:#092C47;\r\n\t}\r\n\t\r\n\t.custom-table-block thead th{\r\n\t\ttext-align: left;\r\n\t\twhite-space:nowrap;\r\n\t}\r\n\t\r\n\t.custom-table-block thead{\r\n\t\tmargin-bottom: 14px;\r\n\t}\r\n\r\n\t.custom-table-block tbody tr:nth-child(odd){\r\n\t\tbackground-color: #F6F9FF;\r\n\t}\r\n\r\n\t.custom-table-block tbody, .custom-table-block thead, .custom-table-block tr, .custom-table-block td, .custom-table-block th{\r\n\t\theight: initial!important;\r\n\t}\r\n\t\r\n\t.custom-table-block tbody td{\r\n\t\tcolor:#092C47;\r\n\t\tfont-family: Open Sans;\r\n\t\tfont-size: 16px;\r\n\t\tfont-weight: 400;\r\n\t\tline-height: 24px;\r\n\t\tletter-spacing: 0em;\r\n\t\ttext-align: left;\r\n\t\tpadding: 7px;\r\n\t}\r\n\t\r\n\t.custom-table-block thead th{\r\n\t\tfont-family: Open Sans;\r\n\t\tfont-size: 16px;\r\n\t\tfont-weight: 700;\r\n\t\tline-height: 24px;\r\n\t\tletter-spacing: 0em;\r\n\t\ttext-align: left;\r\n\t\tcolor:#092C47;\r\n\t\tposition: relative;\r\n\t}\r\n\t.custom-table-block thead th:after{\r\n\t\tcontent:\"\";\r\n\t\tdisplay: inline-block;\r\n\t\tbackground-image: url(\"data:image\/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http:\/\/www.w3.org\/2000\/svg'%3E%3Cpath d='M10.585 0.585938L6 5.17094L1.415 0.585938L0 2.00094L6 8.00094L12 2.00094L10.585 0.585938Z' fill='%23476175'\/%3E%3C\/svg%3E%0A\");\r\n\t\tmargin-left: 8px;\r\n\t\tbackground-position: center center;\r\n\t\tbackground-size: 12px 7.5px;\r\n\t\tbackground-repeat: no-repeat;\r\n\t\twidth: 24px;\r\n\t\theight: 12px;\r\n\t}\r\n\t.custom-table-block{\r\n\t\tmargin: 20px 0;\t\r\n\t}\r\n\t.custom-table-block .table-wrapper{\r\n\t\twidth: 100%;\r\n\t\toverflow-x: auto;\r\n\t}\r\n\t@media(max-width: 768px){\r\n\t\t\/* .custom-table-block tbody td{\r\n\t\t\twhite-space: nowrap;\r\n\t\t} *\/\r\n\t\t.custom-table-block .table-wrapper{\r\n\t\t\tmax-width: calc(100vw - 16px);\r\n\t\t}\r\n\t}\r\n<\/style>\r\n\n\n<h2 class=\"wp-block-heading\" id=\"get-your-highquality-sla-3dprinted-parts-at-xometry\"><strong>Get Your High-Quality SLA 3D-Printed Parts at Xometry<\/strong><\/h2>\n\n\n<p>Mastering SLA 3D printing opens up a world of possibilities for creating detailed, high-precision parts with smooth finishes. By adhering to the design tips in this guide, you can achieve exceptional results, ensuring that the printed parts are more functional, durable, reliable, and interchangeable. These tips are key to complying with high industry standards.<\/p>\n\n\n\n<p>Are you ready to take your projects to the next level? Unlock the full potential of your ideas by partnering with Xometry for unparalleled quality and expertise in <a href=\"https:\/\/xometry.com.tr\/en\/3d-printing-sla\/\" target=\"_blank\" rel=\"noreferrer noopener\">SLA 3D printing<\/a>.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"author":50,"featured_media":113141,"comment_status":"open","ping_status":"closed","template":"","categories":[],"c-tag-articles":[],"global-tag":[495,693],"class_list":["post-22395","articles","type-articles","status-publish","has-post-thumbnail","hentry","global-tag-3d-printing-tr","global-tag-design-tr"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.7 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>SLA 3D Printing Design Guidelines: 8 Essential Tips | Xometry Pro<\/title>\n<meta name=\"description\" content=\"Learn 8 key SLA 3D printing design tips from Xometry\u2019s Head of Sales Engineering to optimize precision, 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