{"id":112333,"date":"2025-06-19T15:04:51","date_gmt":"2025-06-19T13:04:51","guid":{"rendered":"https:\/\/xometry.pro\/?post_type=stories&#038;p=112333"},"modified":"2025-06-19T15:04:52","modified_gmt":"2025-06-19T13:04:52","slug":"ucl-racing-flexible-airless-tyre","status":"publish","type":"stories","link":"https:\/\/xometry.pro\/en-eu\/stories\/ucl-racing-flexible-airless-tyre\/","title":{"rendered":"Reinventing the Wheel for Mars: How We Engineered a Flexible Airless Tyre"},"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-three-concepts-three-philosophies\">Three Concepts, Three Philosophies<\/a>\n\n<\/li>\n<li><a href=\"#from-preliminary-specs-to-final-cad\">From Preliminary Specs to Final CAD<\/a>\n\n<\/li>\n<li><a href=\"#manufacturing-delivery-and-integration\">Manufacturing, Delivery, and Integration<\/a>\n\n<\/li>\n<li><a href=\"#engineering-lessons-beyond-the-classroom\">Engineering Lessons Beyond the Classroom<\/a>\n<\/li><\/ul><\/div>\n\n\n<p>One of the major hurdles in our project was mobility: how to build a reliable, puncture-proof wheel that could handle rocks, slopes, and sand while staying within strict constraints on weight and size.<\/p>\n\n\n\n<p>Instead of relying on pneumatic tyres, which are prone to failure in rugged environments, we set out to develop a fully airless, flexible wheel\u2014capable of passive damping, lightweight, and manufacturable via additive techniques. The project turned out to be far more than just a component design: it became a case study in engineering decision-making, design iteration, and real-world manufacturing collaboration.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class=\"wp-block-image__wrap\"><img decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/close-up-erc-mars-yard-1024x682.jpg\" alt=\"Close-up of the ERC Mars Yard\" class=\"wp-image-112346\" srcset=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/close-up-erc-mars-yard-1024x682.jpg 1024w, https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/close-up-erc-mars-yard-300x200.jpg 300w, https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/close-up-erc-mars-yard-768x511.jpg 768w, https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/close-up-erc-mars-yard.jpg 1164w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/close-up-erc-mars-yard.jpg\" data-fancybox=\"gallery-112333\" data-caption=\"Close-up of the ERC Mars Yard\" aria-label=\"Open full image\"><img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/close-up-erc-mars-yard.jpg\" 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><figcaption class=\"wp-element-caption\">Close-up of the ERC Mars Yard<\/figcaption><\/figure>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-three-concepts-three-philosophies\"><strong>Three Concepts, Three Philosophies<\/strong><\/h2>\n\n\n<p>We began by developing three distinct design concepts, each exploring different structural strategies and material combinations. To meet competition constraints\u2014a maximum wheel diameter of 220 mm and the ability to withstand a vertical load of 120 N\u2014we evaluated each concept through detailed CAD modeling and finite element analysis (FEA). Performance was assessed based on safety factor, weight, manufacturability, and how the structure deformed under load.<\/p>\n\n\n<div class=\"custom-table-block table-with-white-space\" id=\"table-id-249\" >\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-249\" 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%; height: 168px;\">\n<tbody>\n<tr style=\"height: 72px;\">\n<td style=\"width: 25%; height: 72px;\"><strong>Concept<\/strong><\/td>\n<td style=\"width: 25%; height: 72px;\"><strong>1. Rigid core + flexible outer layer<\/strong><\/td>\n<td style=\"width: 25%; height: 72px;\"><strong>2. Single-piece honeycomb<\/strong><\/td>\n<td style=\"width: 25%; height: 72px;\"><strong>3. Modular assembly with locking teeth<\/strong><\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 25%; height: 24px;\"><strong>Description<\/strong><\/td>\n<td style=\"width: 25%; height: 24px;\">This design combined an ABS core with a TPU outer layer, connected via an interference fit\u2014like a conventional tyre on a rim.<\/td>\n<td style=\"width: 25%; height: 24px;\">A one-material, one-piece TPU design using a hexagonal honeycomb structure for uniform strength and reduced mass.<\/td>\n<td style=\"width: 25%; height: 24px;\">Also dual-material (TPU + ABS), but with the outer layer attached to the core via interlocking teeth\u2014allowing easier servicing.<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 25%; height: 24px;\"><strong>Mass<\/strong><\/td>\n<td style=\"width: 25%; height: 24px;\">1.290 kg<\/td>\n<td style=\"width: 25%; height: 24px;\">1.095 kg<\/td>\n<td style=\"width: 25%; height: 24px;\">1.043 kg<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 25%; height: 24px;\"><strong>Effective safety factor<\/strong><\/td>\n<td style=\"width: 25%; height: 24px;\">7.5 (with a conservative assumption of 0.5x applied to printed parts)<\/td>\n<td style=\"width: 25%; height: 24px;\">6.79<\/td>\n<td style=\"width: 25%; height: 24px;\">6.22<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 25%; height: 24px;\"><strong>Advantage\/drawback<\/strong><\/td>\n<td style=\"width: 25%; height: 24px;\">Localized stress and potential tearing at the press-fit interface.<\/td>\n<td style=\"width: 25%; height: 24px;\">Simplified manufacturing, robust load distribution, better deformation control.<\/td>\n<td style=\"width: 25%; height: 24px;\">Uneven deformation patterns and stress concentration risks from sharp edges.<\/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: 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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\n<ul class=\"wp-block-list\"><\/ul>\n\n\n    <section class=\"article-slider-block\">\r\n        <div class=\"article-content-wrapper\">\r\n            <!-- Swiper -->\r\n            <div class=\"swiper mySwiper2 article-slider-display\">\r\n                <div class=\"swiper-wrapper\">\r\n                                                <div class=\"swiper-slide\">\r\n                                <div class=\"wp-block-image__wrap\">\r\n                                    <img decoding=\"async\"  src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/concept-1-cad.png\" alt=\"Concept 1 CAD (left) and cross-section analysis of Concept 1 (right)\"\r\n                                    >\r\n                                    <a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/concept-1-cad.png\" data-fancybox=\"gallery\" data-caption=\"Concept 1 CAD (left) and cross-section analysis of Concept 1 (right)pac\" aria-label=\"Open full image\">\r\n                                        <img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/concept-1-cad.png\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"Concept 1 CAD (left) and cross-section analysis of Concept 1 (right)\" loading=\"lazy\" decoding=\"async\">\r\n                                        <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\"><\/path>\r\n                                        <\/svg>\r\n                                    <\/a>\r\n                                <\/div>\r\n                                <div class=\"article-slider-text\">\r\n                                    <p>Concept 1 CAD (left) and cross-section analysis of Concept 1 (right)pac<\/p>\n                                <\/div>\r\n                            <\/div>\r\n                            \r\n                                                        <div class=\"swiper-slide\">\r\n                                <div class=\"wp-block-image__wrap\">\r\n                                    <img decoding=\"async\"  src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/fea-study-of-concept-1.png\" alt=\"FEA study of Concept 1\"\r\n                                    >\r\n                                    <a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/fea-study-of-concept-1.png\" data-fancybox=\"gallery\" data-caption=\"FEA study of Concept 1e\" aria-label=\"Open full image\">\r\n                                        <img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/fea-study-of-concept-1.png\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"FEA study of Concept 1\" loading=\"lazy\" decoding=\"async\">\r\n                                        <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\"><\/path>\r\n                                        <\/svg>\r\n                                    <\/a>\r\n                                <\/div>\r\n                                <div class=\"article-slider-text\">\r\n                                    <p>FEA study of Concept 1e<\/p>\n                                <\/div>\r\n                            <\/div>\r\n                            \r\n                                                        <div class=\"swiper-slide\">\r\n                                <div class=\"wp-block-image__wrap\">\r\n                                    <img decoding=\"async\"  src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/concept-2-cad.png\" alt=\"Concept 2 CAD\"\r\n                                    >\r\n                                    <a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/concept-2-cad.png\" data-fancybox=\"gallery\" data-caption=\"Concept 2 CADmr\" aria-label=\"Open full image\">\r\n                                        <img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/concept-2-cad.png\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"Concept 2 CAD\" loading=\"lazy\" decoding=\"async\">\r\n                                        <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\"><\/path>\r\n                                        <\/svg>\r\n                                    <\/a>\r\n                                <\/div>\r\n                                <div class=\"article-slider-text\">\r\n                                    <p>Concept 2 CADmr<\/p>\n                                <\/div>\r\n                            <\/div>\r\n                            \r\n                                                        <div class=\"swiper-slide\">\r\n                                <div class=\"wp-block-image__wrap\">\r\n                                    <img decoding=\"async\"  src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/fea-study-of-concept-2.png\" alt=\"FEA study of Concept 2\"\r\n                                    >\r\n                                    <a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/fea-study-of-concept-2.png\" data-fancybox=\"gallery\" data-caption=\"FEA study of Concept 2\" aria-label=\"Open full image\">\r\n                                        <img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/fea-study-of-concept-2.png\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"FEA study of Concept 2\" loading=\"lazy\" decoding=\"async\">\r\n                                        <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\"><\/path>\r\n                                        <\/svg>\r\n                                    <\/a>\r\n                                <\/div>\r\n                                <div class=\"article-slider-text\">\r\n                                    <p>FEA study of Concept 2<\/p>\n                                <\/div>\r\n                            <\/div>\r\n                            \r\n                                                        <div class=\"swiper-slide\">\r\n                                <div class=\"wp-block-image__wrap\">\r\n                                    <img decoding=\"async\"  src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/concept-3-cad.png\" alt=\"Concept 3 CAD\"\r\n                                    >\r\n                                    <a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/concept-3-cad.png\" data-fancybox=\"gallery\" data-caption=\"Concept 3 CAD\" aria-label=\"Open full image\">\r\n                                        <img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/concept-3-cad.png\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"Concept 3 CAD\" loading=\"lazy\" decoding=\"async\">\r\n                                        <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\"><\/path>\r\n                                        <\/svg>\r\n                                    <\/a>\r\n                                <\/div>\r\n                                <div class=\"article-slider-text\">\r\n                                    <p>Concept 3 CAD<\/p>\n                                <\/div>\r\n                            <\/div>\r\n                            \r\n                                                        <div class=\"swiper-slide\">\r\n                                <div class=\"wp-block-image__wrap\">\r\n                                    <img decoding=\"async\"  src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/fea-study-of-concept-3.png\" alt=\"FEA study of Concept 3\"\r\n                                    >\r\n                                    <a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/fea-study-of-concept-3.png\" data-fancybox=\"gallery\" data-caption=\"FEA study of Concept\" aria-label=\"Open full image\">\r\n                                        <img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/fea-study-of-concept-3.png\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"FEA study of Concept 3\" loading=\"lazy\" decoding=\"async\">\r\n                                        <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\"><\/path>\r\n                                        <\/svg>\r\n                                    <\/a>\r\n                                <\/div>\r\n                                <div class=\"article-slider-text\">\r\n                                    <p>FEA study of Concept<\/p>\n                                <\/div>\r\n                            <\/div>\r\n                            \r\n                                            <\/div>\r\n            <\/div>\r\n            <div thumbsSlider=\"\" class=\"swiper mySwiper article-slider-list\">\r\n                <div class=\"swiper-wrapper\">\r\n                                            <div class=\"swiper-slide\">\r\n                            <img decoding=\"async\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/concept-1-cad.png\" alt=\"Concept 1 CAD (left) and cross-section analysis of Concept 1 (right)\">\r\n                        <\/div>\r\n                                                <div class=\"swiper-slide\">\r\n                            <img decoding=\"async\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/fea-study-of-concept-1.png\" alt=\"FEA study of Concept 1\">\r\n                        <\/div>\r\n                                                <div class=\"swiper-slide\">\r\n                            <img decoding=\"async\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/concept-2-cad.png\" alt=\"Concept 2 CAD\">\r\n                        <\/div>\r\n                                                <div class=\"swiper-slide\">\r\n                            <img decoding=\"async\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/fea-study-of-concept-2.png\" alt=\"FEA study of Concept 2\">\r\n                        <\/div>\r\n                                                <div class=\"swiper-slide\">\r\n                            <img decoding=\"async\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/concept-3-cad.png\" alt=\"Concept 3 CAD\">\r\n                        <\/div>\r\n                                                <div class=\"swiper-slide\">\r\n                            <img decoding=\"async\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/fea-study-of-concept-3.png\" alt=\"FEA study of Concept 3\">\r\n                        <\/div>\r\n                                        <\/div>\r\n            <\/div>\r\n        <\/div>\r\n    <\/section>\r\n    \n\n\n<p>After benchmarking the options through a weighted decision matrix, we selected Concept 2 for further development. Its superior manufacturability and consistent structural response made it the best candidate. The clean, single-material design also aligned well with additive manufacturing methods, and we validated its feasibility early on using <a href=\"https:\/\/get.xometry.eu\/?locale=en\" target=\"_blank\" rel=\"noreferrer noopener\">Xometry\u2019s Instant Quoting Engine<\/a>.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"from-preliminary-specs-to-final-cad\"><strong>From Preliminary Specs to Final CAD<\/strong><\/h2>\n\n\n<p>With Concept 2 selected, we refined the design to meet a series of strict functional requirements:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Max wheel diameter<\/strong>: 220 mm<\/li>\n\n\n\n<li><strong>Load capacity<\/strong>: 120 N<\/li>\n\n\n\n<li><strong>Motor interface<\/strong>: recessed cavity to minimize moment arm<\/li>\n\n\n\n<li><strong>Texture<\/strong>: tread for traction<\/li>\n\n\n\n<li><strong>Coverage<\/strong>: partial dust covers to block debris<\/li>\n\n\n\n<li><strong>Flexibility<\/strong>: elastic deformation for damping<\/li>\n\n\n\n<li>Single-piece manufacturing to minimize failure points.<\/li>\n<\/ul>\n\n\n\n<p>The resulting CAD integrated a full enclosure for the motor shaft, preserving the honeycomb core for strength and incorporating a textured tread for grip on both flat and inclined surfaces.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class=\"wp-block-image__wrap\"><img decoding=\"async\" width=\"1024\" height=\"468\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/preliminary-design-cad-1024x468.png\" alt=\"Preliminary design CAD (left) and cross-section analysis of the preliminary design (right)\" class=\"wp-image-112430\" srcset=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/preliminary-design-cad-1024x468.png 1024w, https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/preliminary-design-cad-300x137.png 300w, https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/preliminary-design-cad-768x351.png 768w, https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/preliminary-design-cad-1536x702.png 1536w, https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/preliminary-design-cad-2048x936.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/preliminary-design-cad-scaled.png\" data-fancybox=\"gallery-112333\" data-caption=\"Preliminary design CAD (left) and cross-section analysis of the preliminary design (right)\" aria-label=\"Open full image\"><img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/preliminary-design-cad-scaled.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><figcaption class=\"wp-element-caption\">Preliminary design CAD (left) and cross-section analysis of the preliminary design (right)<\/figcaption><\/figure>\n\n\n\n<p>To validate our approach and select final manufacturing parameters, we reached out to Xometry engineers for a professional design review. Their feedback pushed the project to the next level:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Revised lattice<\/strong>: Our initial design showed uneven deformation around the circumference. Engineers recommended a more symmetric, radial internal strut layout, inspired by <a href=\"https:\/\/www.michelin.fr\/why-michelin\/sustainability\/prototype-michelin-uptis\" target=\"_blank\" rel=\"noreferrer noopener\">Michelin\u2019s Uptis prototype<\/a>.<\/li>\n\n\n\n<li><strong>Dust cover removal<\/strong>: Partial covers risked trapping fine dust and gravel. A fully open design would eliminate that and improve aesthetics.<\/li>\n\n\n\n<li><strong>Tread optimization<\/strong>: We lowered tread height and switched to a symmetric pattern to support bi-directional driving and reduce wear.<\/li>\n\n\n\n<li><strong>Material hardness tuning<\/strong>: Shore A &gt;70 was advised to balance softness and structural support. EOS TPU 1301 (Shore 86A) was the final pick\u2014ideal for impact damping, UV-resistant, and compatible with Selective Laser Sintering (SLS).<\/li>\n<\/ul>\n\n\n\n<p>All this feedback was incorporated into our final CAD, which featured a uniform internal lattice, motor mount integration, and a symmetric tread pattern. The partial dust cover was dropped altogether.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class=\"wp-block-image__wrap\"><img decoding=\"async\" width=\"2560\" height=\"1037\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/final-cad-design-edited-scaled.png\" alt=\"Final design CAD\" class=\"wp-image-112466\" srcset=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/final-cad-design-edited-scaled.png 2560w, https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/final-cad-design-edited-300x122.png 300w, https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/final-cad-design-edited-1024x415.png 1024w, https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/final-cad-design-edited-768x311.png 768w, https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/final-cad-design-edited-1536x622.png 1536w, https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/final-cad-design-edited-2048x830.png 2048w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/final-cad-design-edited-scaled.png\" data-fancybox=\"gallery-112333\" data-caption=\"Final design CAD\" aria-label=\"Open full image\"><img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/final-cad-design-edited-scaled.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><figcaption class=\"wp-element-caption\">Final design CAD<\/figcaption><\/figure>\n\n\n<h2 class=\"wp-block-heading\" id=\"manufacturing-delivery-and-integration\"><strong>Manufacturing, Delivery, and Integration<\/strong><\/h2>\n\n\n<p>With the final design ready, we uploaded it to Xometry\u2019s platform for a second quote. TPU 1301 wasn\u2019t listed in the dropdown at the time, so we selected \u201cTPU\u201d and specified the exact material in the order comments. Thanks to Xometry\u2019s 80% sponsorship, we were able to manufacture all six wheels within our student budget.<\/p>\n\n\n\n<p>When the printed wheels arrived in February, the quality was exceptional. The SLS process delivered the dimensional accuracy we needed, and the parts exhibited excellent flexibility without visible defects. After successful flexure testing, we mounted the wheels on the rover chassis. The integration was seamless\u2014the offset cavity locked into the motor shaft perfectly, and the honeycomb structure provided the shock absorption we had modeled from the start.<\/p>\n\n\n    <section class=\"article-slider-block\">\r\n        <div class=\"article-content-wrapper\">\r\n            <!-- Swiper -->\r\n            <div class=\"swiper mySwiper2 article-slider-display\">\r\n                <div class=\"swiper-wrapper\">\r\n                                                <div class=\"swiper-slide\">\r\n                                <div class=\"wp-block-image__wrap\">\r\n                                    <img decoding=\"async\"  src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/manufactured-wheels-edited.png\" alt=\"3D printed wheels\"\r\n                                    >\r\n                                    <a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/manufactured-wheels-edited.png\" data-fancybox=\"gallery\" data-caption=\"3D printed wheel\" aria-label=\"Open full image\"0>\r\n                                        <img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/manufactured-wheels-edited.png\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"3D printed wheels\" loading=\"lazy\" decoding=\"async\">\r\n                                        <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\"><\/path>\r\n                                        <\/svg>\r\n                                    <\/a>\r\n                                <\/div>\r\n                                <div class=\"article-slider-text\">\r\n                                    <p>3D printed wheel<\/p>\n                                <\/div>\r\n                            <\/div>\r\n                            \r\n                                                        <div class=\"swiper-slide\">\r\n                                <div class=\"wp-block-image__wrap\">\r\n                                    <img decoding=\"async\"  src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/3d-printed-wheel-ucl.png\" alt=\"\"\r\n                                    >\r\n                                    <a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/3d-printed-wheel-ucl.png\" data-fancybox=\"gallery\" data-caption=\"3D printed wheel\" aria-label=\"Open full image\"1>\r\n                                        <img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/3d-printed-wheel-ucl.png\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"\" loading=\"lazy\" decoding=\"async\">\r\n                                        <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\"><\/path>\r\n                                        <\/svg>\r\n                                    <\/a>\r\n                                <\/div>\r\n                                <div class=\"article-slider-text\">\r\n                                    <p>3D printed wheel<\/p>\n                                <\/div>\r\n                            <\/div>\r\n                            \r\n                                                        <div class=\"swiper-slide\">\r\n                                <div class=\"wp-block-image__wrap\">\r\n                                    <img decoding=\"async\"  src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/rover-3d-printed-wheels-ucl.png\" alt=\"\"\r\n                                    >\r\n                                    <a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/rover-3d-printed-wheels-ucl.png\" data-fancybox=\"gallery\" data-caption=\"Rover with 3D printed wheel\" aria-label=\"Open full image\"2>\r\n                                        <img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/rover-3d-printed-wheels-ucl.png\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"\" loading=\"lazy\" decoding=\"async\">\r\n                                        <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\"><\/path>\r\n                                        <\/svg>\r\n                                    <\/a>\r\n                                <\/div>\r\n                                <div class=\"article-slider-text\">\r\n                                    <p>Rover with 3D printed wheel<\/p>\n                                <\/div>\r\n                            <\/div>\r\n                            \r\n                                            <\/div>\r\n            <\/div>\r\n            <div thumbsSlider=\"\" class=\"swiper mySwiper article-slider-list\">\r\n                <div class=\"swiper-wrapper\">\r\n                                            <div class=\"swiper-slide\">\r\n                            <img decoding=\"async\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/manufactured-wheels-edited.png\" alt=\"3D printed wheels\">\r\n                        <\/div>\r\n                                                <div class=\"swiper-slide\">\r\n                            <img decoding=\"async\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/3d-printed-wheel-ucl.png\" alt=\"\">\r\n                        <\/div>\r\n                                                <div class=\"swiper-slide\">\r\n                            <img decoding=\"async\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/rover-3d-printed-wheels-ucl.png\" alt=\"\">\r\n                        <\/div>\r\n                                        <\/div>\r\n            <\/div>\r\n        <\/div>\r\n    <\/section>\r\n    \n\n<h2 class=\"wp-block-heading\" id=\"engineering-lessons-beyond-the-classroom\"><strong>Engineering Lessons Beyond the Classroom<\/strong><\/h2>\n\n\n<p>This project was more than a design exercise\u2014it was a crash course in real-world engineering. Key takeaways:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Structural symmetry matters<\/strong>: Irregular patterns lead to unpredictable behavior. Adopting proven, radial symmetry principles resulted in a safer and more reliable wheel.<\/li>\n\n\n\n<li><strong>Tread geometry isn\u2019t just aesthetic<\/strong>: The balance between grip, wear, and manufacturability must be carefully evaluated.<\/li>\n\n\n\n<li><strong>Shore hardness is critical<\/strong>: Flexibility without structural collapse is a fine line. Material selection can make or break your design.<\/li>\n\n\n\n<li><strong>Manufacturing constraints must be integrated early<\/strong>: Collaborating with suppliers like Xometry taught us how to design for reality\u2014not just for the screen.<\/li>\n<\/ul>\n\n\n\n<p>Looking ahead, these wheels will undergo further terrain testing as we prepare for the ERC. But regardless of the competition outcome, we\u2019ve already succeeded in building a component that meets technical requirements, was delivered through professional channels, and taught us lessons most engineers only learn in the field.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-alpha-channel-opacity has-background\" style=\"background-color:#f5f7f8;color:#f5f7f8\"\/>\n\n\n\n<p><strong>What would you have done differently? Have you ever tackled a design like this\u2014where performance depends entirely on geometry and materials? <\/strong>Share your insights below!<\/p>\n","protected":false},"author":50,"featured_media":113990,"comment_status":"open","ping_status":"closed","template":"","c-tag-stories":[2048],"global-tag":[468],"class_list":["post-112333","stories","type-stories","status-publish","has-post-thumbnail","hentry","c-tag-stories-aerospace-en-eu","global-tag-3d-printing-eu"],"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>How We Engineered a Flexible Airless Tyre | Xometry Pro<\/title>\n<meta name=\"description\" content=\"With the UCLR team, we are designing a rover capable of performing autonomous missions on a simulated Martian surface.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/xometry.pro\/en-eu\/stories\/ucl-racing-flexible-airless-tyre\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How We Engineered a Flexible Airless Tyre | Xometry Pro\" \/>\n<meta property=\"og:description\" content=\"With the UCLR team, we are designing a rover capable of performing autonomous missions on a simulated Martian surface.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/xometry.pro\/en-eu\/stories\/ucl-racing-flexible-airless-tyre\/\" \/>\n<meta property=\"og:site_name\" content=\"Xometry Pro\" \/>\n<meta property=\"article:modified_time\" content=\"2025-06-19T13:04:52+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/xometry.pro\/wp-content\/uploads\/2025\/06\/rover-3d-printed-wheels-ucl-copy-1024x759.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"759\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/xometry.pro\\\/en-eu\\\/stories\\\/ucl-racing-flexible-airless-tyre\\\/\",\"url\":\"https:\\\/\\\/xometry.pro\\\/en-eu\\\/stories\\\/ucl-racing-flexible-airless-tyre\\\/\",\"name\":\"How We Engineered a Flexible Airless Tyre | Xometry Pro\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/xometry.pro\\\/en-eu\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/xometry.pro\\\/en-eu\\\/stories\\\/ucl-racing-flexible-airless-tyre\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/xometry.pro\\\/en-eu\\\/stories\\\/ucl-racing-flexible-airless-tyre\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/xometry.pro\\\/wp-content\\\/uploads\\\/2025\\\/06\\\/rover-3d-printed-wheels-ucl-copy.png\",\"datePublished\":\"2025-06-19T13:04:51+00:00\",\"dateModified\":\"2025-06-19T13:04:52+00:00\",\"description\":\"With the UCLR team, we are designing a rover capable of performing autonomous missions on a simulated Martian surface.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/xometry.pro\\\/en-eu\\\/stories\\\/ucl-racing-flexible-airless-tyre\\\/#breadcrumb\"},\"inLanguage\":\"en-EU\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/xometry.pro\\\/en-eu\\\/stories\\\/ucl-racing-flexible-airless-tyre\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-EU\",\"@id\":\"https:\\\/\\\/xometry.pro\\\/en-eu\\\/stories\\\/ucl-racing-flexible-airless-tyre\\\/#primaryimage\",\"url\":\"https:\\\/\\\/xometry.pro\\\/wp-content\\\/uploads\\\/2025\\\/06\\\/rover-3d-printed-wheels-ucl-copy.png\",\"contentUrl\":\"https:\\\/\\\/xometry.pro\\\/wp-content\\\/uploads\\\/2025\\\/06\\\/rover-3d-printed-wheels-ucl-copy.png\",\"width\":1794,\"height\":1330},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/xometry.pro\\\/en-eu\\\/stories\\\/ucl-racing-flexible-airless-tyre\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/xometry.pro\\\/en-eu\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Stories & Case Studies\",\"item\":\"https:\\\/\\\/xometry.pro\\\/en-eu\\\/stories\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Reinventing the Wheel for Mars: How We Engineered a Flexible Airless Tyre\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/xometry.pro\\\/en-eu\\\/#website\",\"url\":\"https:\\\/\\\/xometry.pro\\\/en-eu\\\/\",\"name\":\"Xometry Pro\",\"description\":\"Knowledge &amp; 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