{"id":12597,"date":"2020-02-20T11:06:00","date_gmt":"2020-02-20T19:06:00","guid":{"rendered":"http:\/\/www.autodesk.com\/products\/fusion-360\/blog\/?p=12597"},"modified":"2021-09-30T07:11:00","modified_gmt":"2021-09-30T14:11:00","slug":"fusion-360-surfaces-machine-complex-geometries","status":"publish","type":"post","link":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/fusion-360-surfaces-machine-complex-geometries\/","title":{"rendered":"How to Use Surfaces to Machine Complex Geometries"},"content":{"rendered":"<p>You are probably asking yourself &#8220;how can I use surfaces to machine other surfaces?!&#8221;. We know that a lot of the functionality within Fusion 360 can be underutilised by users. This may be down to lack of knowledge of each environment, or merely not knowing the benefits of utilising them in unison. For this reason, in this blog I will explain to you how to use surfaces to machine complex geometries, specifically to limit toolpaths.<\/p>\n<p>&nbsp;<\/p>\n<p><iframe loading=\"lazy\" title=\"QUICK TIP: Using Surfaces to Make Better Toolpaths\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/f50vbDyWmrA?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>\n<p>&nbsp;<\/p>\n<h2><strong>Surface environment: Useful Tools<\/strong><\/h2>\n<p>When it comes to using surfaces to machine complex geometries, many people are most concerned about the surface modelling steps required in order to achieve good results. Here\u2019s a list of the commands I\u2019ll be using (and why you should use them too!):<\/p>\n<p>&nbsp;<\/p>\n<p><strong><em>PATCH<\/em>: <\/strong>The patch command will create a surface bound by an edge or a selection of edges. Simply select the patch command, select the edge(s) and a patch will form.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-12662 alignleft\" src=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/1-e1581955865619.png\" alt=\"\" width=\"300\" height=\"169\" srcset=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/1-e1581955865619.png 300w, https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/1-e1581955865619-284x160.png 284w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-12663 alignleft\" src=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/2-e1581955891446.png\" alt=\"\" width=\"300\" height=\"169\" srcset=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/2-e1581955891446.png 300w, https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/2-e1581955891446-284x160.png 284w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong><em>OFFSET<\/em>: <\/strong>Offsetting a surface will create a duplicate of that surface at a given distance. In this case, you can use offsets to create duplicate surfaces without altering the solid model.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-12667 alignleft\" src=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/3-e1581956175808.png\" alt=\"\" width=\"300\" height=\"169\" srcset=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/3-e1581956175808.png 300w, https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/3-e1581956175808-284x160.png 284w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-12664 alignleft\" src=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/4-e1581956004777.png\" alt=\"\" width=\"300\" height=\"169\" srcset=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/4-e1581956004777.png 300w, https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/4-e1581956004777-284x160.png 284w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong><em>STITCH<\/em>:<\/strong> Using the stitch command is not imperative, but will allow for easier application in the manufacture workspace. Stitching 2 surfaces will join them (assuming they intersect), allowing for a single selection when referencing them within your toolpaths.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-12665 alignleft\" src=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/5-e1581956028373.png\" alt=\"\" width=\"300\" height=\"169\" srcset=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/5-e1581956028373.png 300w, https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/5-e1581956028373-284x160.png 284w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-12666 alignleft\" src=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/6-e1581956069684.png\" alt=\"\" width=\"300\" height=\"169\" srcset=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/6-e1581956069684.png 300w, https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/6-e1581956069684-284x160.png 284w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<h2><\/h2>\n<h2><\/h2>\n<h2><\/h2>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>Let&#8217;s now look at two specific examples.<\/p>\n<p>&nbsp;<\/p>\n<h2><strong>Surfaces to machine complex geometries: Holes on a prismatic, 2.5D Part<\/strong><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-12668 aligncenter\" src=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/7-e1581956228275.png\" alt=\"\" width=\"601\" height=\"338\" srcset=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/7-e1581956228275.png 601w, https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/7-e1581956228275-300x169.png 300w, https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/7-e1581956228275-284x160.png 284w, https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/7-e1581956228275-382x216.png 382w\" sizes=\"auto, (max-width: 601px) 100vw, 601px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>Let&#8217;s look at the model you can see above. I want to rough it using the 3D Adaptive Clearing toolpath. By default, the tool will try to enter the holes on the top faces. Unchecking the &#8220;Machine Cavities&#8221; box would help, but would not give me the flexibility I need. The surfaces you can see in the bottom image were created using the commands mentioned in the previous paragraph. I patched the holes, offset the faces and then stitched them together to create two surfaces, covering all the holes. Back in the Manufacture workspace, I can reference the surface within the geometry tab of the toolpath settings. By checking the box next to model and using the \u2018<em>Model Surfaces\u2019<\/em> selection to select both surfaces, I have made the toolpath respect the surfaces and ignore the holes. I can then use a drilling operation to machine the holes.<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-12669 aligncenter\" src=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/8-e1581956261957.png\" alt=\"\" width=\"600\" height=\"338\" srcset=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/8-e1581956261957.png 600w, https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/8-e1581956261957-300x169.png 300w, https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/8-e1581956261957-284x160.png 284w, https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/8-e1581956261957-382x216.png 382w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h2><strong>Surfaces to machine complex geometries: Avoiding Recesses<\/strong><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-12670 aligncenter\" src=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/9-e1581956287991.png\" alt=\"\" width=\"601\" height=\"338\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>The model above features a circular pattern of recesses with complex surfaces within them. The dome-like top surface would ordinarily suit a scallop toolpath. However, the default toolpath morphs into the recesses, rather than giving the clean spiral I would expect. This would obviously lead to poor results and efficiency. To obtain the toolpath I had envisioned, I used the same workflow as before to patch, offset and stitch a continuous surface on that top face. This was then taken back into the manufacture workspace and referenced in the geometry tab of the toolpath settings. Those complex surfaces could then be finished with a smaller tool and finer stepover to obtain much better results.<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-12671 aligncenter\" src=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/10-e1581956321780.png\" alt=\"\" width=\"601\" height=\"338\" srcset=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/10-e1581956321780.png 601w, https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/10-e1581956321780-300x169.png 300w, https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/10-e1581956321780-284x160.png 284w, https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/10-e1581956321780-382x216.png 382w\" sizes=\"auto, (max-width: 601px) 100vw, 601px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h2><strong>Bonus Tip: Using the Extend Function to Improve Edge Conditions<\/strong><\/h2>\n<p>Here\u2019s a little bonus workflow, again utilising surfaces, to improve machining outcomes even more! Due to the shape of a ball nose mill, machining will often leave ridges (cusps) on the machined surface. This will often happen at the edge of faces, as the toolpath will not account for the curvature of the end mill and just put the centre on the bottom edge, as you can see below.<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-12672 aligncenter\" src=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/11-e1581956355520.png\" alt=\"\" width=\"601\" height=\"338\" srcset=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/11-e1581956355520.png 601w, https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/11-e1581956355520-300x169.png 300w, https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/11-e1581956355520-284x160.png 284w, https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/11-e1581956355520-382x216.png 382w\" sizes=\"auto, (max-width: 601px) 100vw, 601px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>Luckily, you can easily extend a surface using the extend command, selecting the desired edge and inputting a value to extend it by. When I regenerate the toolpath, with the extended surface referenced as above, the toolpath will continue past that edge, removing the cusps. As a result, a much cleaner edge can be milled.<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-12673 aligncenter\" src=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/12-e1581956384860.png\" alt=\"\" width=\"601\" height=\"338\" srcset=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/12-e1581956384860.png 601w, https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/12-e1581956384860-300x169.png 300w, https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/12-e1581956384860-284x160.png 284w, https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2020\/02\/12-e1581956384860-382x216.png 382w\" sizes=\"auto, (max-width: 601px) 100vw, 601px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h2><strong>Conclusion<\/strong><\/h2>\n<p>When using an integrated software such as Fusion 360, it is important to think about how to leverage tools in different, maybe even unconventional ways. Being able to use the <em>Surface<\/em> environment to easily create reference surfaces allows for greater control in the manufacturing process, without having to touch on much of the daunting, more complicated functionality. Hopefully this post has helped to refine your manufacturing workflow, enabling greater control.<\/p>\n<p>If you want to work with more complex surfaces for machining, take a look at this Fusion Academy talk <a href=\"https:\/\/f360ap.autodesk.com\/courses\/fusion-360-academy-portland-2019-manufacturing-cam\/lessons\/surfaces-the-multi-axis-tool-path-control-you-never-knew-you-had\" target=\"_blank\" rel=\"noopener noreferrer\">here<\/a>. Are you new to Fusion 360 and want to try it out? You can download a free trial <a href=\"https:\/\/www.autodesk.com\/products\/fusion-360\/free-trial\" target=\"_blank\" rel=\"noopener noreferrer\">at this link<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In this blog, Paolo explains how to use surfaces to machine complex geometries, and specifically how to use surfaces to limit toolpaths.<\/p>\n","protected":false},"author":3452,"featured_media":12661,"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":[182,183,181],"coauthors":[],"class_list":["post-12597","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-machining","tag-machine","tag-model-setup","tag-surfaces","dhig-theme--light"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ 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