{"id":33921,"date":"2020-01-24T10:15:38","date_gmt":"2020-01-24T09:15:38","guid":{"rendered":"https:\/\/www.ferrovial.com\/blog\/?p=33921"},"modified":"2025-12-11T10:10:54","modified_gmt":"2025-12-11T09:10:54","slug":"machines-for-building-bridges-from-legos","status":"publish","type":"post","link":"https:\/\/www.ferrovial.com\/blog\/en\/2020\/01\/machines-for-building-bridges-from-legos\/","title":{"rendered":"Lego Build-Bridges Machines: miniature mega constructions"},"content":{"rendered":"\r\n<p><script type=\"application\/ld+json\">\r\n{\r\n  \"@context\": \"https:\/\/schema.org\",\r\n  \"@type\": \"FAQPage\",\r\n  \"mainEntity\": [{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"Can a Lego machine build bridges?\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"The Internet is full of videos of these miniature yet complex wonders of engineering that are built piece by piece. A good example is this machine, called the Bridge Layer, which builds bridges. It was made some time ago by two students named Ger and Ola from Oslo University College (Norway). It is run with two Lego Mindstorms Nxt 2.0, four servo motors, two linear actuators, and several optical and touch sensors, which communicate via Bluetooth.\r\n\r\nThe machine is elegant: it raises the scissor bridge, approaches the section to be laid, lowers it into place, and can then move to the other side by crossing the bridge as it lays it, and then may turn and pick it up again. It may seem a bit slow, but played at double speed, it is more spectacular.\"\r\n    }\r\n  },{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"What real vehicles used to build Scissor bridges are the lego machines inspired by?\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"This similar Lego machine was inspired by the M1074 military vehicle. In this case, the invention uses the chassis of an M1 Abrams tank built to scale, which is attached to a 1.22-meter long scissor bridge. This makes it a \u201cbridge launcher\u201d model, of which there are currently variants for both military and civil use.\r\n\r\nSome 2,000 Lego pieces were used to build this bridge launcher \u2013 which you can see in action, intrepidly crossing its creators\u2019 kitchen \u2013 along with two large motors, three small motors, and even some fishing materials: several counterweights and special fishing line that help pick up and lay the scissor bridge.\"\r\n    }\r\n  },{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"How does a lego machine make a \"mega construction\"-style of bridges and viaducts?\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"Especial m\u00e9rito tiene la Colecci\u00f3n de M\u00e1quinas para construir puentes de Wolf Zipp. Son modelos construidos con Lego Technic capaces de realizar aut\u00e9nticas proezas, al menos a su escala. Desplazan piezas de enorme peso y tama\u00f1o, las colocan y se desplazan con total precisi\u00f3n, guiados manualmente por su creador y operador. Est\u00e1n controladas por un mando a distancia con cable, pero eso es lo de menos: es su capacidad e ingenio lo que llama la atenci\u00f3n.\r\n\r\nEl modelo SLJ 50018 por ejemplo sirve para desplazar grandes piezas y vigas de varios tama\u00f1os con m\u00f3dulos de ocho ruedas dobles (16 en total) que pueden girar de forma independiente o coordinada hasta 90 grados. Para el desplazamiento de algunas piezas se puede utilizar el veh\u00edculo KSC 500 (Kirow) de 32 ruedas en 16 ejes independientes, capaz de soportar grandes pesos y llevarlos a mayores distancias.\r\n\r\nUna vez colgadas las secciones del puente llevan a su posici\u00f3n, por ejemplo, sobre las vigas de un acueducto. La parte complicada viene cuando hay que aproximarse hasta el borde del tramo ya construido [en el v\u00eddeo: 03:45], levantar el propio veh\u00edculo con unos tornillos elevadores, desplazar toda la estructura lentamente sobre el vano y finalmente apoyar las patas de soporte al otro lado. Esas patas elevadoras se pueden adem\u00e1s desplazar a lo largo del veh\u00edculo, que de este modo va \u00abreptando\u00bb hasta depositar la secci\u00f3n de hormig\u00f3n en su lugar para as\u00ed ir completando el tablero del puente.\r\n\r\nEn su versi\u00f3n de mayor tama\u00f1o, la m\u00e1quina lego SLJ 50018 mide dos metros y pesa 10 kg; puede levantar secciones de puente de hasta 60 cm y 2,5 kg de peso. Est\u00e1 inspirada en la gigantesca SLJ 900\/32 china, una m\u00e1quina de Wowjoint Holdings que se utiliza desde hace a\u00f1os: pesa 580 toneladas, mide 91 metros de largo y se mueve gracias a 64 ruedas divididas en 4 secciones. Dicen que es capaz de montar m\u00e1s de 700 puentes a lo largo de sus 4 a\u00f1os de vida \u00fatil. La humilde m\u00e1quina de Lego de Zipp no lo levanta tan grandes, pero seguro que al menos tiene la misma longevidad.\"\r\n    }\r\n  }]\r\n}\r\n<\/script><\/p>\r\n\r\n<p>Who didn&#8217;t enjoy playing with building blocks in their childhood? They are a great way to experiment with the laws of physics, develop coordination, and begin to understand objects in three dimensions. Over time, toys such as Legos and Meccanos have become more and more specialized for different sorts of construction. And some have gone far beyond those colorful little square houses.<\/p>\r\n<p>Lego is especially adept at enabling fans from all over the world to imagine or recreate technical vehicle models to scale, with editions such as <em>Mindstorms<\/em> (robotics) and <em>Technic<\/em> (advanced technical pieces). And in the field of construction and engineering, they\u2019re not just flashy; they\u2019re also quite functional \u2013 for their size, at least.<\/p>\r\n<h2 id=\"tw-target-text\" class=\"tw-data-text tw-text-large tw-ta\" dir=\"ltr\" data-placeholder=\"Traducci\u00f3n\"><span class=\"Y2IQFc\" lang=\"en\">Can a Lego machine build bridges?<\/span><\/h2>\r\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-33909 size-full\" src=\"https:\/\/static.ferrovial.com\/wp-content\/uploads\/sites\/3\/2020\/01\/13131304\/tendiendo-puentes.jpg\" alt=\"Lego Bridge Layer\" width=\"700\" height=\"393\" srcset=\"https:\/\/static.ferrovial.com\/wp-content\/uploads\/sites\/3\/2020\/01\/13131304\/tendiendo-puentes.jpg 700w, https:\/\/static.ferrovial.com\/wp-content\/uploads\/sites\/3\/2020\/01\/13131304\/tendiendo-puentes-300x168.jpg 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/p>\r\n<p><iframe loading=\"lazy\" title=\"LEGO Mindstorms Bridge Layer\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/oUJ4L4kmbHw?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\r\n<p>The Internet is full of videos of these miniature yet complex wonders of engineering that are built piece by piece. A good example is this machine, called the <strong>Bridge Layer,<\/strong> which builds bridges. It was made some time ago by two students named Ger and Ola from Oslo University College (Norway). It is run with two Lego Mindstorms Nxt 2.0, four servo motors, two linear actuators, and several optical and touch sensors, which communicate via Bluetooth.<\/p>\r\n<p>The machine is elegant: it raises the scissor bridge, approaches the section to be laid, lowers it into place, and can then move to the other side by crossing the bridge as it lays it, and then may turn and pick it up again. It may seem a bit slow, but played at double speed, it is more spectacular.<\/p>\r\n<h2 id=\"tw-target-text\" class=\"tw-data-text tw-text-large tw-ta\" dir=\"ltr\" data-placeholder=\"Traducci\u00f3n\"><span class=\"Y2IQFc\" lang=\"en\">What real vehicles, used to build Scissor bridges, are the lego machines inspired by?<\/span><\/h2>\r\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-33911\" src=\"https:\/\/static.ferrovial.com\/wp-content\/uploads\/sites\/3\/2020\/01\/13131304\/puentes-de-tijera-inspirados-en-vehiculos-reales.jpg\" alt=\"Scissor bridge by Lego\" width=\"700\" height=\"333\" srcset=\"https:\/\/static.ferrovial.com\/wp-content\/uploads\/sites\/3\/2020\/01\/13131304\/puentes-de-tijera-inspirados-en-vehiculos-reales.jpg 700w, https:\/\/static.ferrovial.com\/wp-content\/uploads\/sites\/3\/2020\/01\/13131304\/puentes-de-tijera-inspirados-en-vehiculos-reales-300x143.jpg 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/p>\r\n<p><iframe loading=\"lazy\" title=\"Ultimate Abrams - Lego Bridge Layer\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/8F7IbUhz35g?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\r\n<p>This similar Lego machine was inspired by the <a href=\"https:\/\/en.wikipedia.org\/wiki\/M1074_Joint_Assault_Bridge\" target=\"_blank\" rel=\"noopener\">M1074 military vehicle.<\/a> In this case, the invention uses the chassis of an M1 Abrams tank built to scale, which is attached to a 1.22-meter long scissor bridge. This makes it a \u201cbridge launcher\u201d model, of which there are currently variants for both military and civil use.<\/p>\r\n<p>Some 2,000 Lego pieces were used to build this bridge launcher \u2013 which you can see in action, intrepidly crossing its creators\u2019 kitchen \u2013 along with two large motors, three small motors, and even some fishing materials: several counterweights and special fishing line that help pick up and lay the scissor bridge.<\/p>\r\n<h2 class=\"tw-data-text tw-text-large tw-ta\" dir=\"ltr\" data-placeholder=\"Traducci\u00f3n\"><span class=\"Y2IQFc\" lang=\"en\">How does a lego machine make a &#8220;<\/span><span class=\"Y2IQFc\" lang=\"en\">mega construction&#8221;-style of bridges and viaducts?<\/span><\/h2>\r\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-33914 size-full\" src=\"https:\/\/static.ferrovial.com\/wp-content\/uploads\/sites\/3\/2020\/01\/13131303\/puentes-y-viaductos-estilo-megaconstrucciones.jpg\" alt=\"Wolf Zipp\u2019s Collection of Bridge Building Machines\" width=\"700\" height=\"392\" srcset=\"https:\/\/static.ferrovial.com\/wp-content\/uploads\/sites\/3\/2020\/01\/13131303\/puentes-y-viaductos-estilo-megaconstrucciones.jpg 700w, https:\/\/static.ferrovial.com\/wp-content\/uploads\/sites\/3\/2020\/01\/13131303\/puentes-y-viaductos-estilo-megaconstrucciones-300x168.jpg 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/p>\r\n<p><iframe loading=\"lazy\" title=\"LEGO TECHNIC RC Special : Bridge Building Machines\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/1_dLAUs9GE8?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\r\n<p><a href=\"https:\/\/www.youtube.com\/channel\/UC2vjCc0CiaxF8bHHaOPQUXw\/videos\" target=\"_blank\" rel=\"noopener noreferrer\">Wolf Zipp<\/a>\u2019s <a href=\"https:\/\/www.youtube.com\/watch?v=1_dLAUs9GE8\" target=\"_blank\" rel=\"noopener\">Collection of Bridge Building Machines<\/a> deserves special recognition. These models built with Lego Technic are capable of performing true feats, at least for their size. They move parts of enormous weights and sizes, set them in place, and move them with absolute precision, guided manually by their creator and operator. They\u2019re controlled by a wired remote control, but the most remarkable thing about them is their ability and ingenuity.<\/p>\r\n<p>The <a href=\"https:\/\/www.youtube.com\/watch?v=P-ARijabjmY\" target=\"_blank\" rel=\"noopener\">SLJ 50018<\/a> model, for instance, is used to move large pieces and beams of various sizes with their eight double-wheel modules (16 in total), which can spin independently or in a coordinated fashion to up to 90 degrees. The 32-wheel KSC 500 vehicle (Kirow) on its 16 independent axes can be used to move some parts, as it can withstand heavy weights and move them over longer distances.<\/p>\r\n<p>Once the sections of the bridge are hung, they can be put into position on the beams of an aqueduct, for one example. The tricky part is approaching the edge of the stretch that has already been built [in the video: 03:45], raising the vehicle on jackscrews, slowly moving the entire structure over the span, and lastly, placing the lift legs on the other side. These lift legs can also be moved along the vehicle, thereby &#8220;creeping&#8221; forward until the concrete section is put in place to complete the bridge\u2019s deck.<\/p>\r\n<p>The larger version of the SLJ 50018 Lego machine comes in at two meters and weighs 10 kg; it can lift bridge sections of up to 60 cm and 2.5 kg in weight. It was inspired by the gigantic Chinese <a href=\"https:\/\/www.youtube.com\/watch?v=190eH_AJeWQ\" target=\"_blank\" rel=\"noopener\">SLJ 900\/32,<\/a> a <a href=\"https:\/\/wowjoint.com\/\" target=\"_blank\" rel=\"noopener\">Wowjoint Holdings<\/a> machine that has been used for \u00a0years: it weighs 580 tons, is 91 meters long, and moves on 64 wheels in 4 sections. It is said to be capable of raising more than 700 bridges in its 4-year lifespan. Zipp&#8217;s humble Lego machine can&#8217;t raise bridges that big, but it does have at least the same longevity.<\/p><p><em>An article by \u00c1lvaro Ib\u00e1\u00f1ez<\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>Who didn&#8217;t enjoy playing with building blocks in their childhood? They are a great way to experiment with the laws of physics, develop coordination, and begin to understand objects in three dimensions. Over time, toys such as Legos and Meccanos have become more and more specialized for different sorts of construction. And some have gone [&hellip;]<\/p>\n","protected":false},"featured_media":33918,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"image","meta":{"_acf_changed":false,"footnotes":""},"nivel-1":[4654],"nivel-2":[4782,4711,4705,4743,4756,4763],"nivel-3":[],"nivel-4":[],"nivel-5":[],"topic":[7296],"coauthors":[3794],"class_list":["post-33921","post","type-post","status-publish","format-image","has-post-thumbnail","hentry","post_format-post-format-image","nivel-1-construction","nivel-2-bridges","nivel-2-building","nivel-2-design-and-engineering","nivel-2-infrastructures","nivel-2-machinery","nivel-2-works","topic-construction-and-infrastructure"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Lego Build-Bridges Machines: miniature mega constructions<\/title>\n<meta name=\"description\" content=\"Over time, toys such as Legos and Meccanos have become more 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