{"id":2452,"date":"2025-12-12T06:37:04","date_gmt":"2025-12-12T06:37:04","guid":{"rendered":"https:\/\/utelymachine.com\/?p=2452"},"modified":"2025-12-20T04:25:35","modified_gmt":"2025-12-20T04:25:35","slug":"how-accurate-is-cnc-machining","status":"publish","type":"post","link":"https:\/\/utelymachine.com\/ru\/2025\/12\/12\/how-accurate-is-cnc-machining\/","title":{"rendered":"How accurate is CNC machining?"},"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>CNC (Computer Numerical Control) machining is renowned for its precision and repeatability\u2014but how accurate is CNC machining really, and what factors determine its performance? In this guide, we break down everything you need to know about CNC machining accuracy, from tolerances to influencing variables, so you can make informed decisions for your manufacturing needs.<\/p>\n\n\n<style>.kb-row-layout-id2452_5630b9-84 > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id2452_5630b9-84 > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id2452_5630b9-84 > .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-id2452_5630b9-84 > .kt-row-layout-overlay{opacity:0.30;}@media all and (max-width: 1024px){.kb-row-layout-id2452_5630b9-84 > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}@media all and (max-width: 767px){.kb-row-layout-id2452_5630b9-84 > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id2452_5630b9-84 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-column2452_e50d78-ab > .kt-inside-inner-col,.kadence-column2452_e50d78-ab > .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-column2452_e50d78-ab > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column2452_e50d78-ab > .kt-inside-inner-col{flex-direction:column;}.kadence-column2452_e50d78-ab > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column2452_e50d78-ab > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column2452_e50d78-ab{position:relative;}@media all and (max-width: 1024px){.kadence-column2452_e50d78-ab > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column2452_e50d78-ab > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column2452_e50d78-ab\"><div class=\"kt-inside-inner-col\"><style>.kb-image2452_520557-96 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image2452_520557-96\"><figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"627\" height=\"558\" src=\"https:\/\/i0.wp.com\/utelymachine.com\/wp-content\/uploads\/2025\/12\/TN2.jpg?resize=627%2C558&#038;ssl=1\" alt=\"\" class=\"kb-img wp-image-2455\" srcset=\"https:\/\/i0.wp.com\/utelymachine.com\/wp-content\/uploads\/2025\/12\/TN2.jpg?w=627&amp;ssl=1 627w, https:\/\/i0.wp.com\/utelymachine.com\/wp-content\/uploads\/2025\/12\/TN2.jpg?resize=300%2C267&amp;ssl=1 300w\" sizes=\"auto, (max-width: 627px) 100vw, 627px\" \/><\/figure><\/div>\n<\/div><\/div>\n\n<\/div><\/div>\n\n<style>.kb-table-of-content-nav.kb-table-of-content-id2452_5bf6e1-a6 .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-id2452_5bf6e1-a6 .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-id2452_5bf6e1-a6 .kb-table-of-contents-title{font-weight:regular;font-style:normal;}.kb-table-of-content-nav.kb-table-of-content-id2452_5bf6e1-a6 .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>What is CNC Machining Accuracy?<\/strong><\/h2>\n\n\n\n<p><a href=\"https:\/\/utelymachine.com\/ru\/5-%d0%be%d1%81%d0%b5%d0%b2%d0%b0%d1%8f-%d0%be%d0%b1%d1%80%d0%b0%d0%b1%d0%be%d1%82%d0%ba%d0%b0-%d1%81-%d1%87%d0%bf%d1%83\/\">\u041e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0430 \u043d\u0430 \u0441\u0442\u0430\u043d\u043a\u0430\u0445 \u0441 \u0427\u041f\u0423<\/a>\u00a0accuracy refers to how closely a manufactured part matches the intended design specifications. This includes dimensional accuracy, geometric precision, and surface quality.<\/p>\n\n\n\n<p>In practical terms,&nbsp;<strong>accuracy in CNC machining<\/strong>&nbsp;is often measured in millimeters (mm) or thousandths of an inch (thou\/inch), with high-precision machines capable of tolerances as tight as \u00b10.0002 inches (\u00b10.005 mm).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>What Factors Affect CNC Machining Accuracy?<\/strong><\/h2>\n\n\n\n<p>Even the most advanced CNC machines are subject to several influencing factors:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Material Type<\/strong>: Softer materials like aluminum are easier to machine accurately, while harder metals like titanium require more robust tooling.<\/li>\n\n\n\n<li><strong>Tool Wear and Calibration<\/strong>: Worn-out tools or misaligned setups can degrade precision.<\/li>\n\n\n\n<li><strong>Machine Quality and Age<\/strong>: Modern 5-axis CNC machines offer better accuracy than older 3-axis models.<\/li>\n\n\n\n<li><strong>Thermal Expansion<\/strong>: Changes in temperature can cause parts or machines to expand slightly, affecting final dimensions.<\/li>\n\n\n\n<li><strong>Operator Skill<\/strong>: Even automated systems benefit from experienced machinists who can set optimal parameters.<\/li>\n<\/ul>\n\n\n<style>.kb-row-layout-id2452_f74127-7f > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id2452_f74127-7f > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id2452_f74127-7f > .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-id2452_f74127-7f > .kt-row-layout-overlay{opacity:0.30;}@media all and (max-width: 1024px){.kb-row-layout-id2452_f74127-7f > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}@media all and (max-width: 767px){.kb-row-layout-id2452_f74127-7f > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id2452_f74127-7f 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-column2452_aaf178-3e > .kt-inside-inner-col,.kadence-column2452_aaf178-3e > .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-column2452_aaf178-3e > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column2452_aaf178-3e > .kt-inside-inner-col{flex-direction:column;}.kadence-column2452_aaf178-3e > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column2452_aaf178-3e > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column2452_aaf178-3e{position:relative;}@media all and (max-width: 1024px){.kadence-column2452_aaf178-3e > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column2452_aaf178-3e > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column2452_aaf178-3e\"><div class=\"kt-inside-inner-col\"><style>.kb-image2452_2204fa-bb .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image2452_2204fa-bb\"><figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"460\" height=\"303\" src=\"https:\/\/i0.wp.com\/utelymachine.com\/wp-content\/uploads\/2025\/12\/TN3.png?resize=460%2C303&#038;ssl=1\" alt=\"\" class=\"kb-img wp-image-2456\" srcset=\"https:\/\/i0.wp.com\/utelymachine.com\/wp-content\/uploads\/2025\/12\/TN3.png?w=460&amp;ssl=1 460w, https:\/\/i0.wp.com\/utelymachine.com\/wp-content\/uploads\/2025\/12\/TN3.png?resize=300%2C198&amp;ssl=1 300w\" sizes=\"auto, (max-width: 460px) 100vw, 460px\" \/><\/figure><\/div>\n<\/div><\/div>\n\n<\/div><\/div>\n\n\n<h2 class=\"wp-block-heading\"><strong>Key Dimensions of CNC Machining Accuracy<\/strong><\/h2>\n\n\n\n<p>To truly understand CNC precision, we need to explore it across multiple dimensions:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Dimensional Accuracy<\/strong><strong><\/strong><\/h3>\n\n\n\n<p>This refers to the degree to which the final part\u2019s size matches the original CAD model. Most industrial CNC machines offer dimensional tolerances within \u00b10.01 mm to \u00b10.05 mm depending on the machine and material.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Tolerances<\/strong><strong><\/strong><\/h3>\n\n\n\n<p>Tolerances define the allowable deviation from a specified dimension. CNC machining supports a range of tolerance grades, such as:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Standard Tolerances<\/strong>: \u00b10.125 mm (0.005 inch)<\/li>\n\n\n\n<li><strong>Tight Tolerances<\/strong>: \u00b10.025 mm (0.001 inch)<\/li>\n\n\n\n<li><strong>Ultra-Precision Tolerances<\/strong>: \u00b10.005 mm (0.0002 inch)<\/li>\n<\/ul>\n\n\n\n<p>These depend on the machine capability, tooling, material, and part geometry.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Repeatability<\/strong><strong><\/strong><\/h3>\n\n\n\n<p>Repeatability is the machine\u2019s ability to produce identical parts over multiple cycles. High-end CNC machines can achieve repeatability within \u00b10.002 mm, making them ideal for volume production with consistent quality.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Surface Finish<\/strong><strong><\/strong><\/h3>\n\n\n\n<p>The surface finish (measured in Ra \u2013 roughness average) is another key quality indicator. CNC machining can achieve finishes as smooth as 0.8 Ra \u00b5m with standard tooling, and even finer when post-processing is applied.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Geometric Accuracy<\/strong><strong><\/strong><\/h3>\n\n\n\n<p>This includes features such as roundness, flatness, and perpendicularity. Multi-axis CNC machines excel at maintaining complex geometries within tight tolerances.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>CNC Accuracy Across Different Applications<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>\u041f\u0440\u043e\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u043e\u0441\u0442\u044c<\/td><td>Required Accuracy<\/td><td>Typical CNC Tolerance<\/td><\/tr><tr><td>\u0410\u044d\u0440\u043e\u043a\u043e\u0441\u043c\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u043f\u0440\u043e\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u043e\u0441\u0442\u044c<\/td><td>Extremely High (\u00b10.005 mm)<\/td><td>Ultra-precision machining<\/td><\/tr><tr><td>Medical Devices<\/td><td>High (\u00b10.01 mm)<\/td><td>Micro-machining<\/td><\/tr><tr><td>\u0410\u0432\u0442\u043e\u043c\u043e\u0431\u0438\u043b\u0438<\/td><td>Moderate to High (\u00b10.02 mm)<\/td><td>High-volume precision<\/td><\/tr><tr><td>Consumer Products<\/td><td>Standard (\u00b10.05 mm)<\/td><td>General CNC machining<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>How to Improve CNC Machining Accuracy<\/strong><\/h2>\n\n\n\n<p>Here are some practical ways to enhance machining precision:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Use high-quality, regularly calibrated CNC machines<\/li>\n\n\n\n<li>Select materials with stable thermal properties<\/li>\n\n\n\n<li>Employ proper toolpath strategies (adaptive clearing, trochoidal milling)<\/li>\n\n\n\n<li>Minimize vibrations through better fixturing<\/li>\n\n\n\n<li>Implement real-time monitoring systems<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Final Thoughts<\/strong><\/h2>\n\n\n\n<p>CNC machining is one of the most precise and reliable manufacturing methods available today. Whether you\u2019re prototyping or producing complex components at scale, understanding the&nbsp;<strong>accuracy of CNC machining<\/strong>&nbsp;helps you plan better, reduce rework, and ensure consistent quality.<\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>CNC (Computer Numerical Control) machining is renowned for its precision and repeatability\u2014but how accurate is CNC machining really, and what factors determine its performance? In this guide, we break down everything you need to know about CNC machining accuracy, from tolerances to influencing variables, so you can make informed decisions for your manufacturing needs. What&#8230;<\/p>","protected":false},"author":1,"featured_media":2454,"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":[28],"tags":[],"class_list":["post-2452","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","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 accurate is CNC machining? -<\/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\/ru\/2025\/12\/12\/how-accurate-is-cnc-machining\/\" \/>\n<meta property=\"og:locale\" content=\"ru_RU\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How accurate is CNC machining? -\" \/>\n<meta property=\"og:description\" content=\"CNC (Computer Numerical Control) machining is renowned for its precision and repeatability\u2014but how accurate is CNC machining really, and what factors determine its performance? 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