{"id":2513,"date":"2025-12-13T08:05:06","date_gmt":"2025-12-13T08:05:06","guid":{"rendered":"https:\/\/utelymachine.com\/?p=2513"},"modified":"2025-12-20T04:21:38","modified_gmt":"2025-12-20T04:21:38","slug":"como-se-compara-la-cnc-con-la-impresion-3d-en-terminos-de-precision","status":"publish","type":"post","link":"https:\/\/utelymachine.com\/es\/2025\/12\/13\/como-se-compara-la-cnc-con-la-impresion-3d-en-terminos-de-precision\/","title":{"rendered":"\u00bfEn qu\u00e9 se diferencia el CNC de la impresi\u00f3n 3D en t\u00e9rminos de precisi\u00f3n?"},"content":{"rendered":"<ul class=\"wp-block-social-links is-layout-flex wp-block-social-links-is-layout-flex\">\n\n<li class=\"wp-social-link wp-social-link-instagram  wp-block-social-link\"><a href=\"https:\/\/www.instagram.com\/utelymachine\/\" class=\"wp-block-social-link-anchor\"><svg width=\"24\" height=\"24\" viewbox=\"0 0 24 24\" version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M12,4.622c2.403,0,2.688,0.009,3.637,0.052c0.877,0.04,1.354,0.187,1.671,0.31c0.42,0.163,0.72,0.358,1.035,0.673 c0.315,0.315,0.51,0.615,0.673,1.035c0.123,0.317,0.27,0.794,0.31,1.671c0.043,0.949,0.052,1.234,0.052,3.637 s-0.009,2.688-0.052,3.637c-0.04,0.877-0.187,1.354-0.31,1.671c-0.163,0.42-0.358,0.72-0.673,1.035 c-0.315,0.315-0.615,0.51-1.035,0.673c-0.317,0.123-0.794,0.27-1.671,0.31c-0.949,0.043-1.233,0.052-3.637,0.052 s-2.688-0.009-3.637-0.052c-0.877-0.04-1.354-0.187-1.671-0.31c-0.42-0.163-0.72-0.358-1.035-0.673 c-0.315-0.315-0.51-0.615-0.673-1.035c-0.123-0.317-0.27-0.794-0.31-1.671C4.631,14.688,4.622,14.403,4.622,12 s0.009-2.688,0.052-3.637c0.04-0.877,0.187-1.354,0.31-1.671c0.163-0.42,0.358-0.72,0.673-1.035 c0.315-0.315,0.615-0.51,1.035-0.673c0.317-0.123,0.794-0.27,1.671-0.31C9.312,4.631,9.597,4.622,12,4.622 M12,3 C9.556,3,9.249,3.01,8.289,3.054C7.331,3.098,6.677,3.25,6.105,3.472C5.513,3.702,5.011,4.01,4.511,4.511 c-0.5,0.5-0.808,1.002-1.038,1.594C3.25,6.677,3.098,7.331,3.054,8.289C3.01,9.249,3,9.556,3,12c0,2.444,0.01,2.751,0.054,3.711 c0.044,0.958,0.196,1.612,0.418,2.185c0.23,0.592,0.538,1.094,1.038,1.594c0.5,0.5,1.002,0.808,1.594,1.038 c0.572,0.222,1.227,0.375,2.185,0.418C9.249,20.99,9.556,21,12,21s2.751-0.01,3.711-0.054c0.958-0.044,1.612-0.196,2.185-0.418 c0.592-0.23,1.094-0.538,1.594-1.038c0.5-0.5,0.808-1.002,1.038-1.594c0.222-0.572,0.375-1.227,0.418-2.185 C20.99,14.751,21,14.444,21,12s-0.01-2.751-0.054-3.711c-0.044-0.958-0.196-1.612-0.418-2.185c-0.23-0.592-0.538-1.094-1.038-1.594 c-0.5-0.5-1.002-0.808-1.594-1.038c-0.572-0.222-1.227-0.375-2.185-0.418C14.751,3.01,14.444,3,12,3L12,3z M12,7.378 c-2.552,0-4.622,2.069-4.622,4.622S9.448,16.622,12,16.622s4.622-2.069,4.622-4.622S14.552,7.378,12,7.378z M12,15 c-1.657,0-3-1.343-3-3s1.343-3,3-3s3,1.343,3,3S13.657,15,12,15z M16.804,6.116c-0.596,0-1.08,0.484-1.08,1.08 s0.484,1.08,1.08,1.08c0.596,0,1.08-0.484,1.08-1.08S17.401,6.116,16.804,6.116z\"><\/path><\/svg><span class=\"wp-block-social-link-label screen-reader-text\">Instagram<\/span><\/a><\/li>\n\n<li class=\"wp-social-link wp-social-link-youtube  wp-block-social-link\"><a href=\"https:\/\/studio.youtube.com\/video\/IIVYCBBLV5E\/edit\" class=\"wp-block-social-link-anchor\"><svg width=\"24\" height=\"24\" viewbox=\"0 0 24 24\" version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M21.8,8.001c0,0-0.195-1.378-0.795-1.985c-0.76-0.797-1.613-0.801-2.004-0.847c-2.799-0.202-6.997-0.202-6.997-0.202 h-0.009c0,0-4.198,0-6.997,0.202C4.608,5.216,3.756,5.22,2.995,6.016C2.395,6.623,2.2,8.001,2.2,8.001S2,9.62,2,11.238v1.517 c0,1.618,0.2,3.237,0.2,3.237s0.195,1.378,0.795,1.985c0.761,0.797,1.76,0.771,2.205,0.855c1.6,0.153,6.8,0.201,6.8,0.201 s4.203-0.006,7.001-0.209c0.391-0.047,1.243-0.051,2.004-0.847c0.6-0.607,0.795-1.985,0.795-1.985s0.2-1.618,0.2-3.237v-1.517 C22,9.62,21.8,8.001,21.8,8.001z M9.935,14.594l-0.001-5.62l5.404,2.82L9.935,14.594z\"><\/path><\/svg><span class=\"wp-block-social-link-label screen-reader-text\">YouTube<\/span><\/a><\/li>\n\n<li class=\"wp-social-link wp-social-link-facebook  wp-block-social-link\"><a href=\"https:\/\/www.facebook.com\/profile.php?id=61584402039139&#038;mibextid=wwXIfr&#038;mibextid=wwXIfr\" class=\"wp-block-social-link-anchor\"><svg width=\"24\" height=\"24\" viewbox=\"0 0 24 24\" version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M12 2C6.5 2 2 6.5 2 12c0 5 3.7 9.1 8.4 9.9v-7H7.9V12h2.5V9.8c0-2.5 1.5-3.9 3.8-3.9 1.1 0 2.2.2 2.2.2v2.5h-1.3c-1.2 0-1.6.8-1.6 1.6V12h2.8l-.4 2.9h-2.3v7C18.3 21.1 22 17 22 12c0-5.5-4.5-10-10-10z\"><\/path><\/svg><span class=\"wp-block-social-link-label screen-reader-text\">Facebook<\/span><\/a><\/li>\n\n<\/ul>\n\n\n\n<p>Todos los ingenieros que trabajan con piezas de precisi\u00f3n se han planteado alguna vez una pregunta similar.&nbsp;<mark>\u00bfQu\u00e9 es m\u00e1s preciso, el mecanizado CNC o la impresi\u00f3n 3D? La respuesta parece sencilla. Los centros de mecanizado alcanzar\u00edan una precisi\u00f3n de 0,025 mm frente a la precisi\u00f3n de 0,1 mm de la impresi\u00f3n 3D. Pero en la pr\u00e1ctica, los centros de mecanizado alcanzar\u00edan una precisi\u00f3n de 0,025 mm en comparaci\u00f3n con la precisi\u00f3n de 0,1 mm de la impresi\u00f3n 3D. Pero, \u00bfrealmente suponen 0,1 mm una diferencia en el aspecto, el ajuste o el funcionamiento de una pieza?<\/mark><\/p>\n\n\n\n<p>Adem\u00e1s, \u00bftiene sentido limitar el\u00a0<em><a href=\"https:\/\/utelymachine.com\/es\/mecanizado-cnc-de-5-ejes\/\">Mecanizado CNC<\/a><\/em>\u00a0y\u00a0<em><a href=\"https:\/\/utelymachine.com\/es\/fabricacion-de-productos-de-primera-pieza\/\">Impresi\u00f3n 3D<\/a><\/em>\u00a0\u00bfa la simple precisi\u00f3n?<\/p>\n\n\n\n<p>El objetivo de esta tarea es proporcionar una respuesta m\u00e1s segura en lo que respecta a la selecci\u00f3n de tecnolog\u00eda para un proyecto concreto. En esta tarea se analizan tanto el CNC como la impresi\u00f3n 3D. La tarea no solo requiere exactitud, sino tambi\u00e9n precisi\u00f3n, coherencia y las ventajas y desventajas de cada tecnolog\u00eda en particular.<\/p>\n\n\n<style>.kb-table-of-content-nav.kb-table-of-content-id2513_577488-8f .kb-table-of-content-wrap{padding-top:var(--global-kb-spacing-sm, 1.5rem);padding-right:var(--global-kb-spacing-sm, 1.5rem);padding-bottom:var(--global-kb-spacing-sm, 1.5rem);padding-left:var(--global-kb-spacing-sm, 1.5rem);}.kb-table-of-content-nav.kb-table-of-content-id2513_577488-8f .kb-table-of-contents-title-wrap{padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.kb-table-of-content-nav.kb-table-of-content-id2513_577488-8f .kb-table-of-contents-title{font-weight:regular;font-style:normal;}.kb-table-of-content-nav.kb-table-of-content-id2513_577488-8f .kb-table-of-content-wrap .kb-table-of-content-list{font-weight:regular;font-style:normal;margin-top:var(--global-kb-spacing-sm, 1.5rem);margin-right:0px;margin-bottom:0px;margin-left:0px;}<\/style>\n\n\n<h2 class=\"wp-block-heading\"><strong>CNC frente a impresi\u00f3n 3D: Comparaci\u00f3n de cifras<\/strong><\/h2>\n\n\n<style>.kb-image2513_eee415-04 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<figure class=\"wp-block-kadence-image kb-image2513_eee415-04 size-medium\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/i0.wp.com\/utelymachine.com\/wp-content\/uploads\/2025\/12\/S2-1.png?resize=300%2C300&#038;ssl=1\" alt=\"\" class=\"kb-img wp-image-2090\" srcset=\"https:\/\/i0.wp.com\/utelymachine.com\/wp-content\/uploads\/2025\/12\/S2-1.png?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/utelymachine.com\/wp-content\/uploads\/2025\/12\/S2-1.png?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/utelymachine.com\/wp-content\/uploads\/2025\/12\/S2-1.png?w=393&amp;ssl=1 393w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/figure>\n\n\n\n<p>Hay algunos procesos b\u00e1sicos que deben entenderse para captar la esencia de la precisi\u00f3n.<\/p>\n\n\n\n<p>Los procesos de mecanizado CNC son sustractivos, ya que utilizan diversas herramientas de corte para eliminar material, mientras que los procesos de impresi\u00f3n 3D son aditivos, ya que construyen una pieza capa a capa.<\/p>\n\n\n\n<p>Ambos m\u00e9todos definen tolerancias significativamente diferentes que pueden alcanzarse.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Tecnolog\u00eda<\/td><td>Precisi\u00f3n t\u00edpica<\/td><td>Rango de tolerancia com\u00fan<\/td><td>Rugosidad superficial (Ra)<\/td><\/tr><tr><td>Mecanizado CNC<\/td><td>\u00b10,025 mm (est\u00e1ndar) a \u00b10,005 mm (gama alta)<\/td><td>\u00b10,01-0,05 mm<\/td><td>0,8-3,2 \u03bcm<\/td><\/tr><tr><td>Impresi\u00f3n 3D (FDM)<\/td><td>\u00b10,2 mm o \u00b10,002 mm\/mm<\/td><td>\u00b10,1-0,3 mm<\/td><td>6,3-25 \u03bcm<\/td><\/tr><tr><td>Impresi\u00f3n 3D (SLA\/SLS)<\/td><td>\u00b10,1 mm o \u00b10,0015 mm\/mm<\/td><td>\u00b10,05-0,15 mm<\/td><td>1,5-10 \u03bcm<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>El mecanizado CNC ofrece una precisi\u00f3n entre 4 y 10 veces mayor y unos acabados superficiales mucho m\u00e1s suaves, mientras que la impresi\u00f3n 3D ofrece una libertad de dise\u00f1o inigualable y una iteraci\u00f3n m\u00e1s r\u00e1pida.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u00bfEn qu\u00e9 se diferencia el CNC de la impresi\u00f3n 3D en t\u00e9rminos de precisi\u00f3n?<\/strong><\/h2>\n\n\n<style>.kb-row-layout-id2513_06e7fa-0a > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id2513_06e7fa-0a > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id2513_06e7fa-0a > .kt-row-column-wrap{column-gap:var(--global-kb-gap-md, 2rem);row-gap:var(--global-kb-gap-md, 2rem);padding-top:var(--global-kb-spacing-sm, 1.5rem);padding-bottom:var(--global-kb-spacing-sm, 1.5rem);grid-template-columns:minmax(0, 1fr);}.kb-row-layout-id2513_06e7fa-0a > .kt-row-layout-overlay{opacity:0.30;}@media all and (max-width: 1024px){.kb-row-layout-id2513_06e7fa-0a > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}@media all and (max-width: 767px){.kb-row-layout-id2513_06e7fa-0a > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id2513_06e7fa-0a alignnone wp-block-kadence-rowlayout\"><div class=\"kt-row-column-wrap kt-has-1-columns kt-row-layout-equal kt-tab-layout-inherit kt-mobile-layout-row kt-row-valign-top\">\n<style>.kadence-column2513_b295d3-30 > .kt-inside-inner-col,.kadence-column2513_b295d3-30 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column2513_b295d3-30 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column2513_b295d3-30 > .kt-inside-inner-col{flex-direction:column;}.kadence-column2513_b295d3-30 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column2513_b295d3-30 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column2513_b295d3-30{position:relative;}@media all and (max-width: 1024px){.kadence-column2513_b295d3-30 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column2513_b295d3-30 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column2513_b295d3-30\"><div class=\"kt-inside-inner-col\"><style>.kb-image2513_44487f-07 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<figure class=\"wp-block-kadence-image kb-image2513_44487f-07 size-medium_large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"859\" src=\"https:\/\/i0.wp.com\/utelymachine.com\/wp-content\/uploads\/2025\/12\/3DP1.jpg?resize=768%2C859&#038;ssl=1\" alt=\"\" class=\"kb-img wp-image-2514\" srcset=\"https:\/\/i0.wp.com\/utelymachine.com\/wp-content\/uploads\/2025\/12\/3DP1.jpg?resize=768%2C859&amp;ssl=1 768w, https:\/\/i0.wp.com\/utelymachine.com\/wp-content\/uploads\/2025\/12\/3DP1.jpg?resize=268%2C300&amp;ssl=1 268w, https:\/\/i0.wp.com\/utelymachine.com\/wp-content\/uploads\/2025\/12\/3DP1.jpg?resize=915%2C1024&amp;ssl=1 915w, https:\/\/i0.wp.com\/utelymachine.com\/wp-content\/uploads\/2025\/12\/3DP1.jpg?w=1017&amp;ssl=1 1017w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n<\/div><\/div>\n\n<\/div><\/div>\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Aspecto<\/td><td>Mecanizado CNC<\/td><td>Impresi\u00f3n 3D<\/td><\/tr><tr><td>Principio<\/td><td>El CNC (control num\u00e9rico por ordenador) extrae material de un bloque s\u00f3lido utilizando herramientas de corte controladas con precisi\u00f3n. Su rigidez mec\u00e1nica y control de movimiento proporcionan una precisi\u00f3n dimensional excepcional.<\/td><td>Proceso aditivo que construye piezas capa a capa. La precisi\u00f3n depende de la altura de la capa, la orientaci\u00f3n de la impresi\u00f3n, la estabilidad t\u00e9rmica y la calibraci\u00f3n.<\/td><\/tr><tr><td>Materiales<\/td><td>Metales (aluminio, acero, titanio) y pl\u00e1sticos t\u00e9cnicos (POM, PEEK, nailon). Las propiedades mec\u00e1nicas son estables e is\u00f3tropas.<\/td><td>Pl\u00e1sticos, resinas, nilones y polvos met\u00e1licos. La resistencia mec\u00e1nica var\u00eda con la orientaci\u00f3n: las piezas suelen ser anis\u00f3tropas.<\/td><\/tr><tr><td>Complejidad geom\u00e9trica<\/td><td>Limitado por el acceso a la herramienta; los rebajes o los canales internos pueden requerir configuraciones o montajes multieje.<\/td><td>Excepcional. Permite canales internos, estructuras reticulares y geometr\u00edas org\u00e1nicas imposibles para CNC.<\/td><\/tr><tr><td>Coste<\/td><td>M\u00e1s elevado por pieza debido al tiempo de preparaci\u00f3n, utillaje y mecanizado, pero m\u00e1s econ\u00f3mico para lotes medianos o grandes.<\/td><td>A menudo es necesario eliminar soportes, lijar, curar, pulir o revestir para obtener una calidad funcional o est\u00e9tica.<\/td><\/tr><tr><td>Tratamiento posterior<\/td><td>A menudo m\u00ednimos. Las superficies pueden pulirse, anodizarse o chaparse para protegerlas y mejorar su est\u00e9tica.<\/td><td>Eliminaci\u00f3n de soportes, lijado, curado, pulido o revestimiento a menudo necesarios para la calidad funcional o est\u00e9tica.<\/td><\/tr><tr><td>Tolerancias<\/td><td>Normalmente \u00b10,01-0,05 mm; las m\u00e1quinas de precisi\u00f3n pueden alcanzar \u00b10,005 mm.<\/td><td>FDM: \u00b10,1-0,3 mm; SLA\/SLS: \u00b10,05-0,15 mm.<\/td><\/tr><tr><td>Acabado superficial<\/td><td>Ra 0,8-3,2 \u03bcm - suficientemente liso para el montaje directo.<\/td><td>Moderado (SLA\/SLS) a rugoso (FDM); las l\u00edneas de capa visibles son t\u00edpicas.<\/td><\/tr><tr><td>Isotrop\u00eda<\/td><td>Excelente; las propiedades mec\u00e1nicas son constantes en todas las direcciones.<\/td><td>Limitada; la direcci\u00f3n vertical (Z) suele ser m\u00e1s d\u00e9bil debido a la uni\u00f3n de capas.<\/td><\/tr><tr><td>Repetibilidad<\/td><td>Extremadamente alta. Incluso en 100 piezas, la variaci\u00f3n se mantiene dentro de \u00b10,01 mm.<\/td><td>Moderada; variaciones de lote de \u00b10,05-0,1 mm en funci\u00f3n de la temperatura, la calibraci\u00f3n y el lote de material.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00b10,025 mm frente a \u00b10,1 mm\uff1a \u00bfQu\u00e9 significan realmente estas cifras de precisi\u00f3n en la vida real?<\/h2>\n\n\n<style>.kb-row-layout-id2513_31ec6d-e6 > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id2513_31ec6d-e6 > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id2513_31ec6d-e6 > .kt-row-column-wrap{column-gap:var(--global-kb-gap-md, 2rem);row-gap:var(--global-kb-gap-md, 2rem);padding-top:var(--global-kb-spacing-sm, 1.5rem);padding-bottom:var(--global-kb-spacing-sm, 1.5rem);grid-template-columns:minmax(0, 1fr);}.kb-row-layout-id2513_31ec6d-e6 > .kt-row-layout-overlay{opacity:0.30;}@media all and (max-width: 1024px){.kb-row-layout-id2513_31ec6d-e6 > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}@media all and (max-width: 767px){.kb-row-layout-id2513_31ec6d-e6 > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id2513_31ec6d-e6 alignnone wp-block-kadence-rowlayout\"><div class=\"kt-row-column-wrap kt-has-1-columns kt-row-layout-equal kt-tab-layout-inherit kt-mobile-layout-row kt-row-valign-top\">\n<style>.kadence-column2513_cde207-2f > .kt-inside-inner-col,.kadence-column2513_cde207-2f > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column2513_cde207-2f > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column2513_cde207-2f > .kt-inside-inner-col{flex-direction:column;}.kadence-column2513_cde207-2f > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column2513_cde207-2f > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column2513_cde207-2f{position:relative;}@media all and (max-width: 1024px){.kadence-column2513_cde207-2f > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column2513_cde207-2f > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column2513_cde207-2f\"><div class=\"kt-inside-inner-col\"><style>.kb-image2513_12e0ac-57 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<figure class=\"wp-block-kadence-image kb-image2513_12e0ac-57 size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"622\" height=\"415\" src=\"https:\/\/i0.wp.com\/utelymachine.com\/wp-content\/uploads\/2025\/12\/3DP3.jpg?resize=622%2C415&#038;ssl=1\" alt=\"\" class=\"kb-img wp-image-2515\" srcset=\"https:\/\/i0.wp.com\/utelymachine.com\/wp-content\/uploads\/2025\/12\/3DP3.jpg?w=622&amp;ssl=1 622w, https:\/\/i0.wp.com\/utelymachine.com\/wp-content\/uploads\/2025\/12\/3DP3.jpg?resize=300%2C200&amp;ssl=1 300w\" sizes=\"auto, (max-width: 622px) 100vw, 622px\" \/><\/figure>\n<\/div><\/div>\n\n<\/div><\/div>\n\n\n<p>Es f\u00e1cil leer \u00b10,025 mm frente a \u00b10,1 mm, pero es dif\u00edcil captar el impacto.<br>He aqu\u00ed lo que significan esas cifras en la pr\u00e1ctica:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Aplicaci\u00f3n<\/td><td>Precisi\u00f3n Sensibilidad<\/td><td>Impacto en el mundo real<\/td><\/tr><tr><td>Carcasas de engranajes, ajustes de rodamientos<\/td><td>Muy alta<\/td><td>\u00b10,1 mm puede causar interferencias o desalineaci\u00f3n<\/td><\/tr><tr><td>Cajas de pl\u00e1stico<\/td><td>Medio<\/td><td>La variaci\u00f3n de \u00b10,1 mm es aceptable visualmente<\/td><\/tr><tr><td>Validaci\u00f3n de prototipos<\/td><td>Bajo<\/td><td>\u00b10,2 mm a\u00fan adecuado para comprobaciones de dise\u00f1o<\/td><\/tr><tr><td>Modelos de exposici\u00f3n o demostraci\u00f3n<\/td><td>Muy bajo<\/td><td>Las diferencias de tolerancia son insignificantes<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u00b10,025 mm \u2248 , un tercio del grosor de un cabello humano.<\/li>\n\n\n\n<li>\u00b10,1 mm \u2248 es la separaci\u00f3n entre paneles de smartphone.<\/li>\n\n\n\n<li>El mecanizado CNC proporciona un ajuste de nivel mec\u00e1nico,<\/li>\n\n\n\n<li>mientras que la impresi\u00f3n 3D proporciona precisi\u00f3n a nivel visual.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u00bfEs la precisi\u00f3n el \u00fanico factor importante?<\/h2>\n\n\n\n<p>No. En la fabricaci\u00f3n real, la precisi\u00f3n es s\u00f3lo una parte del pastel.<\/p>\n\n\n\n<p>Las caracter\u00edsticas del material, el precio, la movilidad del dise\u00f1o y el plazo de entrega aportan tanto o m\u00e1s valor.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Factor<\/td><td>Mecanizado CNC<\/td><td>Impresi\u00f3n 3D<\/td><\/tr><tr><td>Resistencia del material<\/td><td>Alta, isotr\u00f3pica<\/td><td>Var\u00eda, a menudo anis\u00f3tropo<\/td><\/tr><tr><td>Libertad de dise\u00f1o<\/td><td>Limitado por la geometr\u00eda de la herramienta<\/td><td>Extremadamente alto, admite formas complejas<\/td><\/tr><tr><td>Coste por pieza<\/td><td>Mayor instalaci\u00f3n, menor a escala<\/td><td>Menor preparaci\u00f3n, mayor por unidad para lotes<\/td><\/tr><tr><td>Plazos de entrega<\/td><td>M\u00e1s largo (configuraci\u00f3n\/programaci\u00f3n)<\/td><td>M\u00e1s corto (directo de CAD)<\/td><\/tr><tr><td>Repetibilidad<\/td><td>Excelente<\/td><td>Moderado<\/td><\/tr><tr><td>Lo mejor para<\/td><td>Piezas funcionales o portantes<\/td><td>Prototipado r\u00e1pido, geometr\u00eda compleja<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>CNC = precisi\u00f3n + estabilidad,<\/li>\n\n\n\n<li>Impresi\u00f3n 3D = flexibilidad + rapidez.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u00bfC\u00f3mo se consigue la precisi\u00f3n y en qu\u00e9 medida es coherente?<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Tecnolog\u00eda<\/td><td>C\u00f3mo se consigue la precisi\u00f3n<\/td><td>Nivel de coherencia<\/td><\/tr><tr><td>CNC<\/td><td>Mediante bastidores de m\u00e1quina r\u00edgidos, herramientas de precisi\u00f3n, compensaci\u00f3n t\u00e9rmica y control de retroalimentaci\u00f3n.<\/td><td>Muy alta - variaci\u00f3n dentro de \u00b10,01 mm incluso en 100 piezas.<\/td><\/tr><tr><td>Impresi\u00f3n 3D<\/td><td>Mediante el grosor de la capa, la orientaci\u00f3n de la impresi\u00f3n y el control de la temperatura.<\/td><td>Moderada - variaci\u00f3n dentro de \u00b10,05-0,1 mm dependiendo de las condiciones.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>La precisi\u00f3n de corte de una m\u00e1quina CNC es siempre mec\u00e1nica y determinista; siempre hay una medici\u00f3n y una compensaci\u00f3n para cada corte.<\/li>\n\n\n\n<li>La precisi\u00f3n de una impresora 3D es t\u00e9rmica y probabil\u00edstica. Depende de la contracci\u00f3n, la orientaci\u00f3n de la impresora y el entorno.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u00bfQu\u00e9 compensaciones son necesarias para alcanzar una alta precisi\u00f3n?<\/h2>\n\n\n\n<p>Alcanzar una gran precisi\u00f3n siempre cuesta algo: tiempo, dinero o flexibilidad del proceso.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Factor de compensaci\u00f3n<\/td><td>Mecanizado CNC<\/td><td>Impresi\u00f3n 3D<\/td><\/tr><tr><td>Tiempo de mecanizado\/construcci\u00f3n<\/td><td>Largo (trayectorias complejas)<\/td><td>Corto (capas automatizadas)<\/td><\/tr><tr><td>Eficiencia material<\/td><td>Baja (residuos sustractivos)<\/td><td>Alta (eficacia aditiva)<\/td><\/tr><tr><td>Coste de instalaci\u00f3n<\/td><td>Alta (utillaje, herramientas)<\/td><td>Bajo<\/td><\/tr><tr><td>Tratamiento posterior<\/td><td>Opcional (pulido, chapado)<\/td><td>A menudo obligatorio (lijado, curado)<\/td><\/tr><tr><td>Competencia laboral<\/td><td>Se requiere un operario cualificado<\/td><td>Mayoritariamente automatizado<\/td><\/tr><tr><td>Coherencia<\/td><td>Excelente<\/td><td>Moderado<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u201cEl CNC le proporciona dominio de la precisi\u00f3n a trav\u00e9s del control y el tiempo; la impresi\u00f3n 3D le ofrece velocidad, sencillez y libertad\u201d.\u201d<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>CNC frente a impresi\u00f3n 3D\uff1a \u00bfQu\u00e9 tecnolog\u00eda debe elegir para su proyecto?<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Requisitos del proyecto<\/td><td>Proceso recomendado<\/td><td>Raz\u00f3n<\/td><\/tr><tr><td>Conjuntos de alta precisi\u00f3n (ejes, moldes)<\/td><td>&nbsp;CNC<\/td><td>Tolerancia de \u00b10,01 mm, perfecta para ajustes funcionales<\/td><\/tr><tr><td>Creaci\u00f3n r\u00e1pida de prototipos y validaci\u00f3n de dise\u00f1os<\/td><td>Impresi\u00f3n 3D<\/td><td>Entrega r\u00e1pida, bajo coste<\/td><\/tr><tr><td>Estructuras complejas o ligeras<\/td><td>Impresi\u00f3n 3D (SLS\/SLM)<\/td><td>Permite geometr\u00edas de topolog\u00eda optimizada<\/td><\/tr><tr><td>Producci\u00f3n de lotes peque\u00f1os<\/td><td>CNC<\/td><td>Resultados fiables y coherentes<\/td><\/tr><tr><td>Modelos est\u00e9ticos o maquetas visuales<\/td><td>Impresi\u00f3n 3D SLA<\/td><td>Superficie lisa y detalles finos<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusi\u00f3n<\/h2>\n\n\n\n<h2 class=\"wp-block-heading\">CNC frente a impresi\u00f3n 3D\uff1a \u00bfQui\u00e9n gana en precisi\u00f3n?<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Aspecto comparativo<\/td><td>Ganador<\/td><td>Explicaci\u00f3n<\/td><\/tr><tr><td>Precisi\u00f3n dimensional<\/td><td>CNC<\/td><td>\u00b10,005-0,025 mm alcanzables<\/td><\/tr><tr><td>Acabado superficial<\/td><td>CNC<\/td><td>Superficies lisas y listas para el montaje<\/td><\/tr><tr><td>Libertad geom\u00e9trica<\/td><td>Impresi\u00f3n 3D<\/td><td>Canales internos, estructuras reticulares<\/td><\/tr><tr><td>Velocidad de producci\u00f3n<\/td><td>Impresi\u00f3n 3D<\/td><td>R\u00e1pido, sin necesidad de herramientas<\/td><\/tr><tr><td>Repetibilidad<\/td><td>CNC<\/td><td>Coherencia entre lotes<\/td><\/tr><tr><td>Flexibilidad de costes<\/td><td>Impresi\u00f3n 3D<\/td><td>Ideal para tiradas de bajo volumen<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>El acabado superficial, la repetici\u00f3n y la precisi\u00f3n del mecanizado CNC no tienen rival.<\/li>\n\n\n\n<li>En t\u00e9rminos de velocidad, libertad de dise\u00f1o y rentabilidad, el mecanizado CNC se ve superado por la impresi\u00f3n 3D.<\/li>\n\n\n\n<li>Elija CNC cuando las tolerancias definan el rendimiento.<\/li>\n\n\n\n<li>La impresi\u00f3n 3D, a la hora de definir el \u00e9xito, se centra en gran medida en la innovaci\u00f3n.<\/li>\n\n\n\n<li>La mejor opci\u00f3n suele ser combinar ambas, es decir, la flexibilidad de la impresi\u00f3n 3D y la precisi\u00f3n del mecanizado CNC.<\/li>\n<\/ul>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Todos los ingenieros que trabajan con piezas de precisi\u00f3n se han planteado una pregunta similar. \u00bfQu\u00e9 es m\u00e1s preciso, el mecanizado CNC o la impresi\u00f3n 3D? La respuesta parece sencilla. Los centros de mecanizado alcanzar\u00edan una precisi\u00f3n de 0,025 mm en comparaci\u00f3n con la precisi\u00f3n de 0,1 mm de la impresi\u00f3n 3D. Pero en la pr\u00e1ctica, los centros de mecanizado alcanzar\u00edan una precisi\u00f3n de 0,025 mm frente a los 0,1 mm de la impresi\u00f3n 3D...<\/p>","protected":false},"author":1,"featured_media":2118,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[33,28],"tags":[],"class_list":["post-2513","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-3d-printing-service","category-cnc-machining"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How does CNC compare to 3D printing in terms of accuracy? -<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/utelymachine.com\/es\/2025\/12\/13\/como-se-compara-la-cnc-con-la-impresion-3d-en-terminos-de-precision\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How does CNC compare to 3D printing in terms of accuracy? -\" \/>\n<meta property=\"og:description\" content=\"Every engineer working on precision parts has encountered a similar question.&nbsp;Which is more accurate \u2013 CNC machining or 3D printing? The answer does seem straightforward. Machine centers would achieve a precision of 0.025mm compared to 3D printing\u2019s 0.1mm accuracy. But in practice, Machine centers would achieve a precision of 0.025mm compared to 3D printing\u2019s 0.1mm...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/utelymachine.com\/es\/2025\/12\/13\/como-se-compara-la-cnc-con-la-impresion-3d-en-terminos-de-precision\/\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/profile.php?id=61584809600185\" \/>\n<meta property=\"article:published_time\" content=\"2025-12-13T08:05:06+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-12-20T04:21:38+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/utelymachine.com\/wp-content\/uploads\/2025\/12\/custom_home_decor.png\" \/>\n\t<meta property=\"og:image:width\" content=\"393\" \/>\n\t<meta property=\"og:image:height\" content=\"393\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"utelymachine\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@utelymachine\" \/>\n<meta name=\"twitter:site\" content=\"@utelymachine\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"utelymachine\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tiempo de lectura\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/utelymachine.com\/2025\/12\/13\/how-does-cnc-compare-to-3d-printing-in-terms-of-accuracy\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/utelymachine.com\/2025\/12\/13\/how-does-cnc-compare-to-3d-printing-in-terms-of-accuracy\/\"},\"author\":{\"name\":\"utelymachine\",\"@id\":\"https:\/\/utelymachine.com\/es\/#\/schema\/person\/b91a4a0e58478d718c66301dfdb4799e\"},\"headline\":\"How does CNC compare to 3D printing in terms of accuracy?\",\"datePublished\":\"2025-12-13T08:05:06+00:00\",\"dateModified\":\"2025-12-20T04:21:38+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/utelymachine.com\/2025\/12\/13\/how-does-cnc-compare-to-3d-printing-in-terms-of-accuracy\/\"},\"wordCount\":1098,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/utelymachine.com\/es\/#organization\"},\"image\":{\"@id\":\"https:\/\/utelymachine.com\/2025\/12\/13\/how-does-cnc-compare-to-3d-printing-in-terms-of-accuracy\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/i0.wp.com\/utelymachine.com\/wp-content\/uploads\/2025\/12\/custom_home_decor.png?fit=393%2C393&ssl=1\",\"articleSection\":[\"3D printing Service\",\"CNC Machining\"],\"inLanguage\":\"es\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/utelymachine.com\/2025\/12\/13\/how-does-cnc-compare-to-3d-printing-in-terms-of-accuracy\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/utelymachine.com\/2025\/12\/13\/how-does-cnc-compare-to-3d-printing-in-terms-of-accuracy\/\",\"url\":\"https:\/\/utelymachine.com\/2025\/12\/13\/how-does-cnc-compare-to-3d-printing-in-terms-of-accuracy\/\",\"name\":\"How does CNC compare to 3D printing in terms of accuracy? 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