{"id":523,"date":"2025-06-21T13:17:47","date_gmt":"2025-06-21T11:17:47","guid":{"rendered":"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/?page_id=523"},"modified":"2025-07-27T21:29:15","modified_gmt":"2025-07-27T19:29:15","slug":"sacapuntas-de-manivela-de-ignacio-urresti","status":"publish","type":"page","link":"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/proyectos\/sacapuntas-de-manivela-de-ignacio-urresti\/","title":{"rendered":"El sacapuntas de manivela de Ignacio Urresti"},"content":{"rendered":"<p><a href=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_03.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-525 aligncenter\" src=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_03-300x169.png\" alt=\"\" width=\"300\" height=\"169\" srcset=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_03-300x169.png 300w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_03-1024x576.png 1024w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_03-768x432.png 768w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_03-1536x864.png 1536w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_03.png 1600w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>Aunque el sacapuntas como tal ya estaba inventado y patentado, fue un espa\u00f1ol el que, inspir\u00e1ndose en el molinillo de caf\u00e9, dise\u00f1\u00f3 el primer sacapuntas de manivela en 1945. Trabajaba en la f\u00e1brica \u00abEl Casco\u00bb, en el Pa\u00eds Vasco, que todav\u00eda funciona en la actualidad. El primer modelo pesaba 1,29 kg. No era de bolsillo, desde luego, pero cumpl\u00eda su funci\u00f3n. No se conserva el original. Yo he modelado el que se fabric\u00f3 en serie siguiendo el dise\u00f1o de Urresti.<\/p>\n<p><a href=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_06.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-526 aligncenter\" src=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_06-300x169.png\" alt=\"\" width=\"300\" height=\"169\" srcset=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_06-300x169.png 300w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_06-1024x576.png 1024w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_06-768x432.png 768w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_06-1536x864.png 1536w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_06.png 1600w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>Hab\u00eda que atornillarlo al escritorio para que funcionara con comodidad.<\/p>\n<p><a href=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_14.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-527 aligncenter\" src=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_14-300x169.png\" alt=\"\" width=\"300\" height=\"169\" srcset=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_14-300x169.png 300w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_14-1024x576.png 1024w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_14-768x432.png 768w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_14-1536x864.png 1536w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_14.png 1920w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>El sistema funcionaba con una manivela que hac\u00eda girar dos muelas de acero inclinadas. Las muelas ten\u00edan unos filos en espiral que rebajaban la madera y el grafito de l\u00e1piz con la inclinaci\u00f3n adecuada. Tambi\u00e9n los hay con una sola cuchilla.<\/p>\n<p><a href=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_12.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-530 aligncenter\" src=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_12-300x169.png\" alt=\"\" width=\"300\" height=\"169\" srcset=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_12-300x169.png 300w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_12-1024x576.png 1024w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_12-768x432.png 768w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_12-1536x864.png 1536w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_12.png 1920w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_08.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-528 aligncenter\" src=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_08-300x169.png\" alt=\"\" width=\"300\" height=\"169\" srcset=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_08-300x169.png 300w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_08-1024x576.png 1024w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_08-768x432.png 768w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_08-1536x864.png 1536w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_08.png 1600w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>Dos cristales en cada costado permit\u00edan supervisar la operaci\u00f3n.<\/p>\n<p><a href=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_13.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-529 aligncenter\" src=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_13-300x169.png\" alt=\"\" width=\"300\" height=\"169\" srcset=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_13-300x169.png 300w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_13-1024x576.png 1024w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_13-768x432.png 768w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_13-1536x864.png 1536w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_13.png 1600w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>El l\u00e1piz se colocaba en la boquilla, que ten\u00eda tres palas ajustables (por medio de una palanca) que lo sujetaban mientras se afilaba. Un sistema parecido al diafragma de una c\u00e1mara fotogr\u00e1fica.<\/p>\n<p><a href=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_04.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-531 aligncenter\" src=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_04-300x169.png\" alt=\"\" width=\"300\" height=\"169\" srcset=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_04-300x169.png 300w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_04-1024x576.png 1024w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_04-768x432.png 768w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_04-1536x864.png 1536w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_04.png 1920w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_11.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-532 aligncenter\" src=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_11-300x169.png\" alt=\"\" width=\"300\" height=\"169\" srcset=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_11-300x169.png 300w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_11-1024x576.png 1024w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_11-768x432.png 768w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_11-1536x864.png 1536w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_11.png 1600w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>Ten\u00eda en la \u00abpanza\u00bb una portezuela deslizante para evacuar los restos de madera y grafito.<\/p>\n<p><a href=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_09.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-533 aligncenter\" src=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_09-300x169.png\" alt=\"\" width=\"300\" height=\"169\" srcset=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_09-300x169.png 300w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_09-1024x576.png 1024w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_09-768x432.png 768w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_09-1536x864.png 1536w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_09.png 1920w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>El sacapuntas se hac\u00eda su propia publicidad (buena estrategia).<\/p>\n<p><a href=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_10.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-534 aligncenter\" src=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_10-300x169.png\" alt=\"\" width=\"300\" height=\"169\" srcset=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_10-300x169.png 300w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_10-1024x576.png 1024w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_10-768x432.png 768w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_10-1536x864.png 1536w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_10.png 1600w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>Fue considerado como ejemplo paradigm\u00e1tico de dise\u00f1o industrial.<\/p>\n<p style=\"text-align: center\"><a href=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_05.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-535 aligncenter\" src=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_05-300x169.png\" alt=\"\" width=\"300\" height=\"169\" srcset=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_05-300x169.png 300w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_05-1024x576.png 1024w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_05-768x432.png 768w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_05-1536x864.png 1536w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_05.png 1600w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p style=\"text-align: center\"><a href=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_07.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-536 aligncenter\" src=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_07-300x169.png\" alt=\"\" width=\"300\" height=\"169\" srcset=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_07-300x169.png 300w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_07-1024x576.png 1024w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_07-768x432.png 768w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_07-1536x864.png 1536w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/06\/Render_07.png 1600w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p style=\"text-align: center\"><strong>Veamos la malla:<\/strong><\/p>\nngg_shortcode_0_placeholder\n<p style=\"text-align: center\"><strong>Aqu\u00ed se puede interactuar con el modelo:<\/strong><\/p>\n<div class=\"sketchfab-embed-wrapper\">\n<p style=\"text-align: center\"><iframe src=\"https:\/\/sketchfab.com\/models\/6fa517aa4ef54e6ebab39dd08272752b\/embed\" frameborder=\"0\"> <\/iframe><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Para saber m\u00e1s:<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/museodeolivenza.com\/pieza-del-mes-septiembre-2013-sacapuntas-de-sobremesa\/\" target=\"_blank\" rel=\"noopener\">Museo de Olivenza<\/a><\/li>\n<li><a href=\"https:\/\/www.madrid.es\/UnidadesDescentralizadas\/MuseosMunicipales\/ImprentaArtesanal\/Colecciones\/Pieza%20del%20mes\/ficheros\/PIEZA%20MES%20FEBRERO2024.pdf\" target=\"_blank\" rel=\"noopener\">Historia del sacapuntas<\/a><\/li>\n<\/ul>\n<\/div>\n<p style=\"text-align: center\">_________________________________________________________________________________________<\/p>\n<p><a href=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/07\/Logo-blender.png\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-563 alignnone\" src=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/07\/Logo-blender-300x245.png\" alt=\"\" width=\"147\" height=\"120\" srcset=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/07\/Logo-blender-300x245.png 300w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/07\/Logo-blender-1024x837.png 1024w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/07\/Logo-blender-768x628.png 768w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/07\/Logo-blender.png 1200w\" sizes=\"(max-width: 147px) 100vw, 147px\" \/><\/a><a href=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/07\/ea7589be93caf435068d194d09930080a0dd4b61.png\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-565 alignnone\" src=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/07\/ea7589be93caf435068d194d09930080a0dd4b61-300x300.png\" alt=\"\" width=\"117\" height=\"117\" srcset=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/07\/ea7589be93caf435068d194d09930080a0dd4b61-300x300.png 300w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/07\/ea7589be93caf435068d194d09930080a0dd4b61-150x150.png 150w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/07\/ea7589be93caf435068d194d09930080a0dd4b61-768x768.png 768w, https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/07\/ea7589be93caf435068d194d09930080a0dd4b61.png 1024w\" sizes=\"(max-width: 117px) 100vw, 117px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/files\/2025\/07\/ea7589be93caf435068d194d09930080a0dd4b61.png\"><strong>T<\/strong><\/a><strong>ra<\/strong><strong>bajo realizado con Blender e Instamat<\/strong><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Aunque el sacapuntas como tal ya estaba inventado y patentado, fue un espa\u00f1ol el que, inspir\u00e1ndose en el molinillo de caf\u00e9, dise\u00f1\u00f3 el primer sacapuntas&hellip;<\/p>\n","protected":false},"author":2144,"featured_media":0,"parent":163,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"ngg_post_thumbnail":0,"footnotes":""},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/wp-json\/wp\/v2\/pages\/523"}],"collection":[{"href":"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/wp-json\/wp\/v2\/users\/2144"}],"replies":[{"embeddable":true,"href":"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/wp-json\/wp\/v2\/comments?post=523"}],"version-history":[{"count":18,"href":"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/wp-json\/wp\/v2\/pages\/523\/revisions"}],"predecessor-version":[{"id":650,"href":"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/wp-json\/wp\/v2\/pages\/523\/revisions\/650"}],"up":[{"embeddable":true,"href":"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/wp-json\/wp\/v2\/pages\/163"}],"wp:attachment":[{"href":"https:\/\/blogsaverroes.juntadeandalucia.es\/joaquinmartin\/wp-json\/wp\/v2\/media?parent=523"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}