{"id":13395,"date":"2020-06-03T09:00:38","date_gmt":"2020-06-03T16:00:38","guid":{"rendered":"http:\/\/www.autodesk.com\/products\/fusion-360\/blog\/?p=13395"},"modified":"2025-09-04T11:16:09","modified_gmt":"2025-09-04T18:16:09","slug":"fusion-360-grbl-post","status":"publish","type":"post","link":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/fusion-360-grbl-post\/","title":{"rendered":"Using Fusion with GRBL: How to Set Up the GRBL Post for CNC and Laser Machines"},"content":{"rendered":"\n<p><em>Learn how to use the GRBL post with Fusion for precise CNC and laser GRBL machining. Download the software and optimize your CNC machine workflow.<\/em><\/p>\n\n\n\n<?php\nfunction autodesk_fusion_cta_horizontal() {\n    ob_start();\n    ?>\n    <style>\n        .cta-section-horizontal {\n            background: #ddd; \/* Much lighter grey background *\/\n            padding: 12px; \/* Adjusted padding *\/\n            border-radius: 8px;\n            box-shadow: 0 3px 5px rgba(0, 0, 0, 0.2);\n            color: #333; \/* Darker text color for better readability *\/\n            display: flex;\n            align-items: center;\n            justify-content: space-between;\n            max-width: 650px; \/* Width adjusted for a more compact look *\/\n            margin: 20px auto;\n            position: relative;\n            flex-wrap: nowrap; \/* Prevent wrapping *\/\n        }\n\n        .cta-section-horizontal img {\n            width: 60px; \/* Slightly larger logo *\/\n            height: auto; \/* Maintain aspect ratio *\/\n            margin-right: 12px; \/* Adjusted spacing *\/\n            background-color: #ddd; \/* Match the background color *\/\n            padding: 6px; \/* Adjusted padding *\/\n            border-radius: 8px; \/* Slightly rounding to match container *\/\n            box-shadow: 0 0 0 4px #ddd; \/* Blend with background *\/\n        }\n\n        .cta-text {\n            flex: 1;\n            margin-right: 12px; \/* Adjusted spacing *\/\n        }\n\n        .cta-title {\n            font-size: 18px; \/* Slightly larger title font size *\/\n            font-weight: bold; \/* Bold title *\/\n            color: #f9a825; \/* Orange color *\/\n            margin-bottom: 4px; \/* Reduced margin *\/\n        }\n\n        .cta-info {\n            display: none; \/* Hide description *\/\n        }\n\n        .cta-buttons {\n            display: flex;\n            gap: 8px; \/* Adjusted button spacing *\/\n            align-items: center;\n        }\n\n        .cta-button {\n            padding: 8px 12px; \/* Button padding *\/\n            font-size: 12px; \/* Smaller font size for buttons *\/\n            font-weight: bold;\n            text-transform: uppercase;\n            border-radius: 4px; \/* Slightly rounded corners *\/\n            border: 2px solid transparent;\n            cursor: pointer;\n            transition: all 0.3s ease;\n            display: inline-flex; \/* Use inline-flex to ensure proper alignment *\/\n            align-items: center; \/* Center align text vertically *\/\n            justify-content: center; \/* Center align text horizontally *\/\n            text-decoration: none !important; \/* Ensure no underlines with !important *\/\n            color: inherit; \/* Use the button's text color *\/\n        }\n\n        .cta-button.white-button {\n            background-color: #fff;\n            color: #333;\n            border: 2px solid #ddd;\n        }\n\n        .cta-button.white-button:hover {\n            background-color: #333;\n            color: #fff;\n            border: 2px solid #f9a825;\n        }\n\n        .cta-button.black-button {\n            background-color: #f9a825;\n            color: #fff;\n            border: 2px solid #f9a825;\n        }\n\n        .cta-button.black-button:hover {\n            background-color: #fff;\n            color: #f9a825;\n            border: 2px solid #fff;\n        }\n    <\/style>\n\n    <div class=\"cta-section-horizontal\">\n        <img decoding=\"async\" src=\"https:\/\/autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2024\/09\/autodesk-fusion-product-icon-400.png\" alt=\"Autodesk Fusion Logo\">\n        <div class=\"cta-text\">\n            <h1 class=\"cta-title\">Elevate your design and manufacturing processes with Autodesk Fusion<\/h1>\n        <\/div>\n        <div class=\"cta-buttons\">\n            <a href=\"https:\/\/www.autodesk.com\/products\/fusion-360\/trial-intake-flow\" class=\"cta-button white-button\">Get a 30-Day Free Trial<\/a>\n            <a href=\"https:\/\/www.autodesk.com\/products\/fusion-360\/extensions\" class=\"cta-button black-button\">See Plans and Pricing<\/a>\n        <\/div>\n    <\/div>\n\n    <?php\n    return ob_get_clean();\n}\nadd_shortcode('autodesk_fusion_cta_horizontal', 'autodesk_fusion_cta_horizontal');\n?>\n\n\n\n<p>If you are using Fusion to prepare designs for CNC machining or laser cutting, understanding how to use the\u00a0GRBL post\u00a0processor is essential. Whether working with a traditional CNC router or a laser engraving machine controlled by\u00a0laser GRBL, this guide covers what GRBL is, where to find the right post processor, and how to set up your workflow using\u00a0GRBL software\u00a0with Fusion.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"what-is-grbl-for-cnc-machines-and-laser-cutters\"><strong>What is Grbl<\/strong> for CNC machines and laser cutters?<\/h2>\n\n\n<p>Grbl is software that converts g-code to motions on a CNC machine. It runs on an <a href=\"https:\/\/www.autodesk.com\/products\/eagle\/blog\/arduino-shield-buying-designing\/\">Arduino<\/a> or similar development board. <a href=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/cnc-programming-fundamentals-g-code\/\">G-code<\/a> is the instructions that tell the machine what to do. The Arduino receives these instructions line by line via USB from a g-code sender. The g-code sender also serves as the human machine interface (HMI) and runs on a laptop, computer, or <a href=\"https:\/\/www.raspberrypi.org\/\">Raspberry Pi<\/a>. <\/p>\n\n\n\n<p>For laser applications, there is a specialized variant called\u00a0laser GRBL\u00a0that adds support for controlling laser power smoothly during cuts and engraving, ensuring precision and safety.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"480\" src=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/05\/0J7808.600x480.jpg\" alt=\"fusion and grbl\" class=\"wp-image-13419\" srcset=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/05\/0J7808.600x480.jpg 600w, https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/05\/0J7808.600x480-300x240.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure>\n\n\n<h2 class=\"wp-block-heading\" id=\"history\">History<\/h2>\n\n\n<p>Grbl development began in 2009 under Simen Svale Skogsrud, and Sonny Jeon continued the work in 2011. The software is <em><strong>open source<\/strong><\/em> and has a large community of developers and users. Consequently, many companies utilize Grbl for their CNC machines, including Inventables, Carbide 3D, and Openbuilds. You can use it to automate all different types of machines, from hot wire foam cutters to 3D printers. It has also forked into various other projects like TinyG, which is a conversation in and of itself. Grbl continues to be a vital catalyst for desktop CNC; hence, the noteworthiness of Sonny and Simen\u2019s contribution.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"how-to-pronounce-it\"><strong>How to pronounce it?<\/strong><\/h2>\n\n\n<p>According to Simen, Grbl is named after the animal, gerbil, because it is small and does one thing very well. However, some pronounce it \u201cgarble,\u201d with others using a hard g as in \u201cgirl\u201d in place of the soft g in \u201cgerbil.\u201d It probably doesn\u2019t matter too much how you say it, as long as your machine is working hard for you.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"the-grbl-postprocessor\"><strong>The Grbl post-processor<\/strong><\/h2>\n\n\n<p>For those who don\u2019t know, a post-processor (post) converts toolpaths from <a href=\"https:\/\/www.autodesk.com\/solutions\/cad-cam?msockid=2b729b48590a6406216c8f2358936589\">CAM software<\/a> into g-code. While there are standards for g-code, most machines only follow them roughly. This means selecting the correct post processor, and its settings are essential. Fortunately, the Grbl g-code follows the <em>LinuxCNC<\/em> g-code specification and is relatively simple. It should be noted that not all LinuxCNC commands are implemented in Grbl. Furthermore, depending on the g code sender, the implementation of Grbl, and the machine type, your CNC setup may have special g-code requirements. Be sure to select the correct post processor for your setup.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"what-is-a-grbl-post-processor-in-fusion\">What is a GRBL post processor in Fusion?<\/h2>\n\n\n<p>When creating toolpaths in Fusion, the software outputs G-code with the help of post processors that tailor the code for specific machine controllers. The\u00a0GRBL post\u00a0is designed to produce G-code compatible with GRBL firmware. Using this post ensures your CNC or laser machine interprets the toolpath commands correctly and runs without errors.<\/p>\n\n\n\n<p>For laser machines, Fusion offers a dedicated\u00a0laser GRBL post\u00a0processor which incorporates commands specific to laser control, like spindle speed adjustments mapped to laser power settings.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"how-to-download-and-use-grbl-software-and-post-processor\">How to download and use GRBL software and post processor<\/h2>\n\n\n<p>To get started, you need to:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Download the latest\u00a0software\u00a0firmware from the official GitHub repository and install it on your Arduino or compatible hardware.<\/li>\n\n\n\n<li>In Fusion, download the\u00a0post processor\u00a0from the post processor library or trusted third-party sources.<\/li>\n\n\n\n<li>Upload your design\u2019s G-code in the format generated by the GRBL or laser GRBL post to a GRBL-compatible G-code sender program (such as Universal G-code Sender or LaserGRBL).<\/li>\n\n\n\n<li>The sender software communicates with your CNC machine or laser engraver, sending commands to execute the toolpath accurately.<\/li>\n<\/ul>\n\n\n<h2 class=\"wp-block-heading\" id=\"why-use-grbl-for-cnc-and-laser-machines\">Why use GRBL for CNC and laser machines?<\/h2>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Open-source and free:<\/strong>\u00a0No licensing fees mean easy accessibility for makers and small businesses.<\/li>\n\n\n\n<li><strong>Flexible:<\/strong>\u00a0Supports both three-axis milling and laser engraving operations.<\/li>\n\n\n\n<li><strong>Popular software ecosystem:<\/strong>\u00a0A large user base and community support make GRBL software easy to learn and troubleshoot.<\/li>\n\n\n\n<li><strong>Compatibility:<\/strong>\u00a0Fusion\u2019s GRBL post works seamlessly with the firmware, enabling smooth CNC or laser operation.<\/li>\n<\/ul>\n\n\n<h2 class=\"wp-block-heading\" id=\"tips-for-using-fusion-and-grbl-together\">Tips for using Fusion and GRBL together<\/h2>\n\n\n<ul class=\"wp-block-list\">\n<li>Test with simple shapes before working on complex toolpaths to verify settings and machine behavior.<\/li>\n\n\n\n<li>Always select the correct GRBL or laser GRBL post processor in Fusion before exporting G-code.<\/li>\n\n\n\n<li>Adjust firmware settings to match your machine\u2019s hardware specifications.<\/li>\n\n\n\n<li>For laser users, ensure the laser mode is enabled in firmware to handle laser power modulation.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>In this post, we are going to explain how to setup Fusion 360 with a Grbl post processor. What is Grbl exactly? And where can I find a Grbl post processor?<\/p>\n","protected":false},"author":3452,"featured_media":13418,"menu_order":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[235],"tags":[166,188,189],"coauthors":[809],"class_list":["post-13395","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-machining","tag-fusion","tag-grbl","tag-post-processor","dhig-theme--light"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to setup Fusion 360 with a Grbl post processor<\/title>\n<meta name=\"description\" content=\"Learn how to use the GRBL post with Fusion for precise CNC and laser GRBL machining. Download the software and optimize your CNC machine workflow.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/fusion-360-grbl-post\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to setup Fusion 360 with a Grbl post processor\" \/>\n<meta property=\"og:description\" content=\"Learn how to use the GRBL post with Fusion for precise CNC and laser GRBL machining. Download the software and optimize your CNC machine workflow.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/fusion-360-grbl-post\/\" \/>\n<meta property=\"og:site_name\" content=\"Fusion Blog\" \/>\n<meta property=\"article:published_time\" content=\"2020-06-03T16:00:38+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-09-04T18:16:09+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/05\/grbl.png\" \/>\n\t<meta property=\"og:image:width\" content=\"512\" \/>\n\t<meta property=\"og:image:height\" content=\"426\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Paolo Bastianelli\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Paolo Bastianelli\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"How to setup Fusion 360 with a Grbl post processor","description":"Learn how to use the GRBL post with Fusion for precise CNC and laser GRBL machining. 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Download the software and optimize your CNC machine workflow.","og_url":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/fusion-360-grbl-post\/","og_site_name":"Fusion Blog","article_published_time":"2020-06-03T16:00:38+00:00","article_modified_time":"2025-09-04T18:16:09+00:00","og_image":[{"width":512,"height":426,"url":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/05\/grbl.png","type":"image\/png"}],"author":"Paolo Bastianelli","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Paolo Bastianelli","Est. reading time":"5 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/fusion-360-grbl-post\/#article","isPartOf":{"@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/fusion-360-grbl-post\/"},"author":{"name":"Paolo Bastianelli","@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/#\/schema\/person\/b202415a2a0aba52762811243b19e8c0"},"headline":"Using Fusion with GRBL: How to Set Up the GRBL Post for CNC and Laser Machines","datePublished":"2020-06-03T16:00:38+00:00","dateModified":"2025-09-04T18:16:09+00:00","mainEntityOfPage":{"@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/fusion-360-grbl-post\/"},"wordCount":792,"commentCount":0,"image":{"@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/fusion-360-grbl-post\/#primaryimage"},"thumbnailUrl":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/05\/grbl.png","keywords":["fusion","grbl","post processor"],"articleSection":["Machining"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/fusion-360-grbl-post\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/fusion-360-grbl-post\/","url":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/fusion-360-grbl-post\/","name":"How to setup Fusion 360 with a Grbl post processor","isPartOf":{"@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/fusion-360-grbl-post\/#primaryimage"},"image":{"@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/fusion-360-grbl-post\/#primaryimage"},"thumbnailUrl":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/05\/grbl.png","datePublished":"2020-06-03T16:00:38+00:00","dateModified":"2025-09-04T18:16:09+00:00","author":{"@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/#\/schema\/person\/b202415a2a0aba52762811243b19e8c0"},"description":"Learn how to use the GRBL post with Fusion for precise CNC and laser GRBL machining. 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