{"id":15605,"date":"2025-04-06T11:02:23","date_gmt":"2025-04-06T09:02:23","guid":{"rendered":"https:\/\/www.blogyourearth.com\/?p=15605"},"modified":"2025-04-06T11:02:23","modified_gmt":"2025-04-06T09:02:23","slug":"gravitrax-compatible-spacer-extension-from-the-3d-printer-more-flexibility-for-your-marble-run","status":"publish","type":"post","link":"https:\/\/www.blogyourearth.com\/en\/top-story-en\/gravitrax-compatible-spacer-extension-from-the-3d-printer-more-flexibility-for-your-marble-run\/15605","title":{"rendered":"Gravitrax-Compatible Spacer Extension from the 3D Printer \u2013 More Flexibility for Your Marble Run"},"content":{"rendered":"<p>The <strong>Gravitrax-compatible spacers or towers<\/strong> from the 3D printer are a brilliant addition to any marble run. I&#8217;ve printed these towers in a variety of heights and use them regularly \u2013 especially in combination with the <a href=\"https:\/\/makerworld.com\/de\/models\/964614-motorized-marble-lift-v4a-simpler-design#profileId-934932\" target=\"_blank\" rel=\"noopener\">Electric Marble Lift V4a<\/a>. The spacers not only add extra stability, but also offer creative freedom when building Gravitrax tracks.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.blogyourearth.com\/en\/top-story-en\/gravitrax-compatible-spacer-extension-from-the-3d-printer-more-flexibility-for-your-marble-run\/15605\/#What_are_Gravitrax-compatible_spacers\" >What are Gravitrax-compatible spacers?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.blogyourearth.com\/en\/top-story-en\/gravitrax-compatible-spacer-extension-from-the-3d-printer-more-flexibility-for-your-marble-run\/15605\/#My_printing_experience_and_setup_tips\" >My printing experience and setup tips<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.blogyourearth.com\/en\/top-story-en\/gravitrax-compatible-spacer-extension-from-the-3d-printer-more-flexibility-for-your-marble-run\/15605\/#Why_the_spacer_towers_are_so_useful\" >Why the spacer towers are so useful<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.blogyourearth.com\/en\/top-story-en\/gravitrax-compatible-spacer-extension-from-the-3d-printer-more-flexibility-for-your-marble-run\/15605\/#Conclusion_Small_parts_with_a_big_impact\" >Conclusion: Small parts with a big impact<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_are_Gravitrax-compatible_spacers\"><\/span>What are Gravitrax-compatible spacers?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> The model <a href=\"https:\/\/www.printables.com\/model\/18309-gravitrax-compatible-spacer-various-heights-no-sup\/files\" target=\"_blank\" rel=\"noopener\">\u201cGravitrax Compatible Spacer \u2013 Various Heights\u201d<\/a> by Printables user **crazydragon** includes stackable tower elements in various heights. These can be perfectly combined with original Gravitrax parts and elegantly replace or extend the standard height blocks.<br \/>\nThe spacers come in different heights (5 mm to 30 mm) and are designed to be printed without supports \u2013 saving both time and material.<\/p>\n<p>Here&#8217;s a photo showing several of the spacer towers:<\/p>\n<div id=\"attachment_15557\" style=\"width: 1034px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.blogyourearth.com\/wp-content\/uploads\/2025\/03\/Gravitrax-kompatible-Spacer-1024x679.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-15557\" class=\"wp-image-15557 size-large\" src=\"https:\/\/www.blogyourearth.com\/wp-content\/uploads\/2025\/03\/Gravitrax-kompatible-Spacer-1024x679.jpg\" alt=\"Gravitrax compatible spacers\" width=\"1024\" height=\"679\" srcset=\"https:\/\/www.blogyourearth.com\/wp-content\/uploads\/2025\/03\/Gravitrax-kompatible-Spacer-1024x679.jpg 1024w, https:\/\/www.blogyourearth.com\/wp-content\/uploads\/2025\/03\/Gravitrax-kompatible-Spacer-300x199.jpg 300w, https:\/\/www.blogyourearth.com\/wp-content\/uploads\/2025\/03\/Gravitrax-kompatible-Spacer-768x509.jpg 768w, https:\/\/www.blogyourearth.com\/wp-content\/uploads\/2025\/03\/Gravitrax-kompatible-Spacer-30x20.jpg 30w, https:\/\/www.blogyourearth.com\/wp-content\/uploads\/2025\/03\/Gravitrax-kompatible-Spacer-75x50.jpg 75w, https:\/\/www.blogyourearth.com\/wp-content\/uploads\/2025\/03\/Gravitrax-kompatible-Spacer-110x73.jpg 110w, https:\/\/www.blogyourearth.com\/wp-content\/uploads\/2025\/03\/Gravitrax-kompatible-Spacer-160x106.jpg 160w, https:\/\/www.blogyourearth.com\/wp-content\/uploads\/2025\/03\/Gravitrax-kompatible-Spacer-500x332.jpg 500w, https:\/\/www.blogyourearth.com\/wp-content\/uploads\/2025\/03\/Gravitrax-kompatible-Spacer-50x33.jpg 50w, https:\/\/www.blogyourearth.com\/wp-content\/uploads\/2025\/03\/Gravitrax-kompatible-Spacer-100x66.jpg 100w, https:\/\/www.blogyourearth.com\/wp-content\/uploads\/2025\/03\/Gravitrax-kompatible-Spacer-200x133.jpg 200w, https:\/\/www.blogyourearth.com\/wp-content\/uploads\/2025\/03\/Gravitrax-kompatible-Spacer-1080x716.jpg 1080w, https:\/\/www.blogyourearth.com\/wp-content\/uploads\/2025\/03\/Gravitrax-kompatible-Spacer.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><p id=\"caption-attachment-15557\" class=\"wp-caption-text\">Gravitrax compatible spacers<\/p><\/div>\n<h2><span class=\"ez-toc-section\" id=\"My_printing_experience_and_setup_tips\"><\/span>My printing experience and setup tips<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> I usually print the spacer towers on my <strong>Bambu Lab X1 Carbon<\/strong> (<a href=\"https:\/\/eu.store.bambulab.com\/de\/products\/x1-carbon\" target=\"_blank\" rel=\"noopener\">link<\/a>), often in multiple sizes but always one color per print \u2013 the different colors make the marble run more vibrant compared to using just gray spacers.<br \/>\n&#x1f449; My personal recommendations:<\/p>\n<ul>\n<li>Material: PLA (lightweight, strong, and easy to print)<\/li>\n<li>Layer height: 0.2 mm<\/li>\n<li>Infill: 15%<\/li>\n<li>Print time: around 15\u201340 minutes per tower (depending on height)<\/li>\n<\/ul>\n<p> The parts are extremely accurate, stack cleanly, and can be used as individual supports. I especially like the version with a height of around 200 mm \u2013 perfect for making fine height adjustments to your track layout. <\/p>\n<h2><span class=\"ez-toc-section\" id=\"Why_the_spacer_towers_are_so_useful\"><\/span>Why the spacer towers are so useful<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> When building with Gravitrax, we often run into limitations \u2013 either we don\u2019t have enough height blocks, or they don\u2019t fit exactly into the desired track layout, especially when marbles need to pass through a tower. That\u2019s where the spacers come in: with different height options, you can precisely adjust inclines and build creative structures not possible with standard parts.<br \/>\nHere\u2019s a video of one of our builds at home:<\/p>\n<p><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube-nocookie.com\/embed\/aK__iCsk0os?si=DzNd90Qpao5Oxblt\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><br \/>\nTogether with the <strong>Electric Marble Lift V4a<\/strong>, this opens up brand-new possibilities: The lift brings the marbles up, the spacers provide a flexible, stable layout \u2013 and the fun is taken to a whole new level.<\/p>\n<p>We even bought an extra set to make larger track layouts possible in the first place.<\/p>\n<style type=\"text\/css\">.asa2_fbh {border:1px solid #E8E8E8; border-radius:5px;margin-bottom:10px;box-shadow:0 1px 2px rgba(0,0,0,0.15);-webkit-box-shadow:0 1px 2px rgba(0,0,0,0.15);transition:all 0.3s ease-in-out;position:relative;background:#FFFFFF;}.asa2_fbh_wrapper {width:100%;}{width:100%;}.asa2_fbh::after {content:\"\";display:table;clear:both;position:relative;border-radius:5px;z-index:-1;width:100%;height:100%;opacity:0;box-shadow:0 5px 15px rgba(0,0,0,0.3);-webkit-box-shadow:0 5px 15px rgba(0,0,0,0.3);transition:opacity 0.3s ease-in-out;}.asa2_fbh_inner_1 {display:flex;}.asa2_fbh_img {flex:0 1 auto;text-align:center;padding:15px;display:flex;align-items:center;justify-content:center;align-self:center;min-width:180px;}.asa2_fbh_img a, .asa2_fbh_img a:hover, .asa2_fbh_img a:focus {text-decoration:none;border:0;box-shadow:none !important;-webkit-box-shadow:none !important;}.asa2_fbh_img img {width:auto;height:auto;max-width:140px !important;margin:0 auto !important;box-shadow:none !important;-webkit-box-shadow:none !important;}.asa2_fbh_body {flex:1 1 0%;position:relative;padding:10px 10px 10px 0;}.asa2_fbh_title {font-size:1em;margin-bottom:5px;padding:0 4px;}.asa2_fbh_title, .asa2_fbh_title a {}.asa2_fbh_rating {vertical-align:middle;}.asa2_fbh_price span:first-child, .asa2_fbh_not_available {font-size:1em;margin-bottom:6px;color:#990000;}.asa2_fbh_listprice {text-decoration:line-through !important;font-size:13px!important;color:#555!important;}.asa2_fbh div.asa2_as_of {font-size:12px !important;display:inline;}.asa2_fbh .asa2_merchant {font-size:12px !important;}.asa2_fbh_button {width:100%;display:inline-block;color:#ffffff !important;background-color:#1d68ff;border-radius:5px;cursor:pointer;padding-top:8px;padding-bottom:8px;text-align:center; text-decoration:none !important;border:0 !important;outline:0 !important;-webkit-box-shadow:none !important;box-shadow:none !important;transition-duration:0.3s !important;transition:0.3s !important;margin-top:10px;max-width:300px;}.asa2_fbh_button:hover, .asa2_fbh_button:focus {background-color:#ff9600;color:#fff !important;text-decoration:none !important;border:0 !important;outline:0 !important;-webkit-box-shadow:none !important;box-shadow:none !important;}.asa2_fbh_inner_2 {padding:0 10px;}.asa2_fbh .description {margin-bottom:10px;font-size:80%;}.asa2_fbh .description ul {list-style-position:inside; }.asa2_fbh .disclaimer {font-size:x-small;margin-bottom:10px;}.asa2_fbh .features {margin-bottom:10px;font-size:80%;}.asa2_fbh .features ul {list-style-position:inside;}.asa2_fbh_ribbon { position:absolute; right:-5px; top:-5px; z-index:1; overflow:hidden; width:100px; height:100px; text-align:right;}.asa2_fbh_ribbon span { font-size:12px;color:#ffffff;text-align:center; line-height:25px; transform:rotate(45deg); width:120px; display:block; background:#ff9600; box-shadow:0 3px 10px -5px rgba(0, 0, 0, 1); position:absolute; top:22px; right:-26px;}.asa2_fbh_ribbon span::before { content:''; position:absolute;left:0px; top:100%; z-index:-1; border-left:3px solid #ff9600; border-right:3px solid transparent; border-bottom:3px solid transparent; border-top:3px solid #ff9600;}.asa2_fbh_ribbon span::after { content:''; position:absolute;right:0%; top:100%; z-index:-1; border-right:3px solid #ff9600; border-left:3px solid transparent; border-bottom:3px solid transparent; border-top:3px solid #ff9600;}.asa2_fbh .asa2_fbh_title {position:relative;}.asa2_fbh .asa2_badge {text-align:left;margin-bottom:8px;display:block;width:100%;position:static;}.asa2_fbh .asa2_badge span {display:inline-flex;align-items:center;padding:5px 10px 5px 10px;border-radius:3px;font-size:12px;font-weight:bold;margin-left:0 !important;line-height:1;}.asa2_fbh .asa2_badge span i {margin-right:4px;}@media (max-width:500px) {.asa2_fbh_inner_1 {flex-direction:column;}.asa2_fbh_body {padding-left:10px;text-align:center;}.asa2_fbh_title {margin-right:0 !important;}.asa2_fbh_wrapper:not(.slick-slide) {float:none;width:99%;margin-right:0;margin-left:0;}}<\/style><div class=\"asa2_fbh_wrapper asa2_22dd971950c8d817c1fb771fe8acb1da\" data-tpl=\"Flat_box_horizontal\"><div class=\"asa2_fbh\">\n  <div class=\"asa2_fbh_ribbon\"><span>34%<\/span><\/div>\t<div class=\"asa2_fbh_inner_1\">\n      <div class=\"asa2_fbh_img\">\n      <a href=\"https:\/\/www.amazon.de\/dp\/B0BSX9L463?tag=ingmstap-21&linkCode=ogi&th=1&psc=1\" target=\"_blank\" rel=\"nofollow\"><img loading=\"lazy\" decoding=\"async\" title=\"Ravensburger GraviTrax Extension Building 22415 - GraviTrax Erweiterung f\u00fcr Deine Kugelbahn - Murmelbahn und Konstruktionsspielzeug ab 8 Jahren, GraviTrax Zubeh\u00f6r kombinierbar mit Allen Produkten\" alt=\"Ravensburger GraviTrax Extension Building 22415 - GraviTrax Erweiterung f\u00fcr Deine Kugelbahn - Murmelbahn und Konstruktionsspielzeug ab 8 Jahren, GraviTrax Zubeh\u00f6r kombinierbar mit Allen Produkten\" src=\"https:\/\/www.blogyourearth.com\/wp-content\/uploads\/2025\/03\/515aps4FBvL._SL160_.jpg\" width=\"155\" height=\"160\" \/><\/a>      <\/div>\n      <div class=\"asa2_fbh_body\">\n                    <div class=\"asa2_fbh_title\" style=\"margin-right: 50px;\">\n              <a href=\"https:\/\/www.amazon.de\/dp\/B0BSX9L463?tag=ingmstap-21&linkCode=ogi&th=1&psc=1\" target=\"_blank\" rel=\"nofollow\">Ravensburger GraviTrax Extension Building 22415 - GraviTrax Erweiterung f\u00fcr Dein... <span class=\"asterisk\">*<\/span><\/a>          <\/div>\n          <div class=\"asa2_fbh_rating\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.blogyourearth.com\/wp-content\/uploads\/2020\/05\/stars-5-0-1.gif\" width=\"55\" alt=\"4.8 out of 5 stars\" align=\"absbottom\" title=\"4.8 out of 5 stars\" height=\"12\" border=\"0\" \/><\/div>\n                    <div class=\"asa2_fbh_listprice\">27,99\u00a0\u20ac<\/div>          <div class=\"asa2_fbh_price\"><span>18,49\u00a0\u20ac<\/span> <div class=\"asa2_as_of\">(Stand von: 19. Juli 2025 06:04 - <a href=\"#asa2_22dd971950c8d817c1fb771fe8acb1da-price-modal\" class=\"asa2-price-modal\">Details<\/a>)<\/div><\/div>\n                              <a class=\"asa2_fbh_button\" href=\"https:\/\/www.amazon.de\/dp\/B0BSX9L463?tag=ingmstap-21&linkCode=ogi&th=1&psc=1\" target=\"_blank\" rel=\"nofollow\">Bei Amazon ansehen <span class=\"asterisk\">*<\/span><\/a>      <\/div>\n    <\/div>\n  \t<div class=\"asa2_fbh_inner_2\">\n    <style type=\"text\/css\">.features .asa2-read-more-state ~ .asa2-read-more-trigger:before {content:'Mehr anzeigen';}.features .asa2-read-more-state:checked ~ .asa2-read-more-trigger:before {content:'Weniger anzeigen';}<\/style>    <style type=\"text\/css\">.description .asa2-read-more-trigger { margin-top:10px;\u201a }.description .asa2-read-more-state ~ .asa2-read-more-trigger:before {content:'Mehr anzeigen';}.description .asa2-read-more-state:checked ~ .asa2-read-more-trigger:before {content:'Weniger anzeigen';}<\/style>    <div class=\"disclaimer\">(* = Affiliate-Link \/ Bildquelle: Amazon-Partnerprogramm)<\/div>  \t<\/div>\n<\/div>\n  <div id=\"asa2_22dd971950c8d817c1fb771fe8acb1da-price-modal\" class=\"asa2-price-modal-overlay\"><div class=\"asa2-price-modal-popup\"><a class=\"asa2-price-modal-close\" href=\"#close\">&times;<\/a><div class=\"asa2-price-modal-content\">Produktpreise und -verf\u00fcgbarkeit sind zum angegebenen Datum \/ Uhrzeit korrekt und k\u00f6nnen sich \u00e4ndern. Alle Preis- und Verf\u00fcgbarkeitsinformationen auf https:\/\/www.amazon.de\/ zum Zeitpunkt des Kaufs gelten f\u00fcr den Kauf dieses Produkts.<\/div><\/div><\/div><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion_Small_parts_with_a_big_impact\"><\/span>Conclusion: Small parts with a big impact<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> The <strong>Gravitrax-compatible spacers<\/strong> are a must-have for anyone looking to creatively expand their marble run. Easy to print, highly versatile, and perfectly combinable with other 3D-printed models like the electric lift. For me, they\u2019re now part of the essential toolkit for every new track. <\/p>\n<p style=\"text-align: center;\">&#x1f517; Check out the model here: <a href=\"https:\/\/www.printables.com\/model\/18309-gravitrax-compatible-spacer-various-heights-no-sup\/files\" target=\"_blank\" rel=\"noopener\">Gravitrax-Compatible Spacer on Printables<\/a><\/p>\n<p><em>Gravitrax is a registered trademark of Ravensburger AG. This post is not affiliated with Ravensburger AG and uses the brand solely to describe compatibility.<\/em><\/p>\n<p><em>This article was written by a human with the help of AI.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Gravitrax-compatible spacers or towers from the 3D printer are a brilliant addition to any marble run. I&#8217;ve printed these towers in a variety of heights and use them regularly \u2013 especially in combination with the Electric Marble Lift V4a. The spacers not only add extra stability, but also offer creative freedom when building Gravitrax [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":15558,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[2710,2708,1610],"tags":[2722,2718,2726,2414,2724,2721,2723,2715,2727,2725],"class_list":["post-15605","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-3d-models","category-3d-printing","category-top-story-en","tag-3d-printed-marble-run-parts","tag-bambu-lab-x1-carbon","tag-diy-gravitrax-expansion","tag-electric-marble-lift","tag-gravitrax-towers","tag-gravitrax-compatible-spacers","tag-marble-track-extension","tag-modular-marble-run","tag-printable-marble-run-parts","tag-spacer-for-marble-runs","et-has-post-format-content","et_post_format-et-post-format-standard"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - 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