{"id":55496,"date":"2019-05-28T11:13:18","date_gmt":"2019-05-28T03:13:18","guid":{"rendered":"http:\/\/facfox.com\/?post_type=kb&p=55496"},"modified":"2019-05-28T11:13:18","modified_gmt":"2019-05-28T03:13:18","slug":"reduce-cost","status":"publish","type":"kb","link":"https:\/\/facfox.com\/docs\/kb\/reduce-cost","title":{"rendered":"Tips to reduce 3D printing cost"},"content":{"rendered":"

Cutting down costs for 3D prints is the number one concern for many customers. In order to achieve this, we need to understand how costs for 3D prints are calculated. Probably the most important variable is the amount of material that is needed for printing your object. So all we need to do is to make sure to use as little material as possible. Down-sizing the object? Nope, hollowing it out like a pro!<\/strong><\/p>\n

Save money: don\u2019t use material where you don\u2019t need it!<\/strong><\/h2>\n

The pricing for most 3D printing materials<\/a> is volume-based. The less material you use, the less it will cost you. This means a hollow model will be cheaper than a solid one. For some 3D printing materials, hollowing your object will also avoid deformations.<\/p>\n

\"\"<\/a><\/p>\n

Hollow 3D print. Save money using less 3D printing material<\/p>\n<\/div>\n

However, creating a 3D model with an empty interior can be a bit tricky: you need to know how to hollow your model in the 3D modeling software you\u2019re using, you need to define a wall thickness<\/a>that is strong enough for your model not to break, and it probably makes sense to add so-called \u2018escape holes\u2019 to your model. So let\u2019s take a look at these things a step at a time.<\/p>\n

Reduce costs: create a hollow 3D model & 3D print.<\/strong><\/h2>\n

A hollow model means that the interior of your object will not be solid. Solid designs are not necessarily a problem \u2013 depending on the material they will be stronger and harder to break, but they will also be more expensive as more 3D printing material will be used.<\/p>\n

With a hollow model the interior of your print will be empty. However, since our printers print layer by layer, 3D printing material can get trapped in the interior of your model as you can see in the image in the middle below. If you would like to avoid this, you can add \u2018escape holes\u2019 to your design. Material that is not used for building your 3D print can then be removed.<\/p>\n

\"save<\/p>\n

Are the walls thick enough for a hollow model?<\/strong><\/h2>\n

Creating a hollow model means that you need to design your object with \u2018walls\u2019. A printer needs to know how thick the walls of your objects (the \u2018outer shell\u2019 if you will) are supposed to be. We don\u2019t have a single, \u2018one-size-fits-all\u2019 wall thickness to recommend for each and every 3D printing material. Some, like Solidscape HD wax<\/strong> or Detail Cast Resin RC31<\/strong>, can go quite fine with minimum wall thicknesses of 0.3 mm and 0.4 mm, while most of our materials<\/strong> range somewhere in between 1 and 3 mm<\/strong>.<\/p>\n

\"learn<\/p>\n

Maybe you are thinking about saving some money by pushing the wall thickness to the minimum. That\u2019s only logical since this means that less material will be used and the print will be cheaper. However, think about the fact that making walls too thin can make your model too fragile and might cause parts of it to break off.<\/p>\n

Read our guide on how to get the perfect wall thickness<\/a> for your 3D print and make sure to read the guidelines for your 3D printing material<\/a> first.<\/p>\n

How do I create a hollow model in my 3D modeling software?<\/strong><\/h2>\n

Each and every 3D modeling software works differently, so hollowing a 3D model is easier in some programs than in others. We\u2019ll take a look at some examples here nevertheless.<\/p>\n

One program with an easy-to-use hollowing function is 123D Design<\/a>. It can hollow any shape by clicking on \u2018modify\u2019 and \u2018shell\u2019. You can then select how big the hollowed space will be and how thick the walls will remain.<\/p>\n

\"learn<\/p>\n

In other programs, like SketchUp<\/a>, it\u2019s a bit more complicated. An easy way is to start with a 2-dimensional rectangle and use the \u2018offset\u2019 function. This will create a rectangle within the rectangle. Delete this space and you\u2019ll have an empty space in your rectangle (left-hand side in the image below). You can then \u2018pull\u2019 this 2D shape into a 3D object (right-hand side in the image below). In a final step, you can add \u2018walls\u2019 at the top and bottom of the design.<\/p>\n

\"hollow<\/p>\n

Probably the easiest way to get a hollow model is by downloading the free Autodesk software Meshmixer<\/a>. Insert your 3D file, select \u2018edit\u2019 and \u2018hollow\u2019 and you will have immediate results.<\/p>\n

\"cut<\/p>\n

Why do I need escape holes?<\/strong><\/h2>\n

As already pointed out, our 3D prints are created layer by layer. With a hollow interior, this means that 3D printing materials can get trapped inside the object. A hollow model full of trapped powder is in danger of deforming. Escape holes are recommended for getting \u2018trapped\u2019 3D printing material out of your 3D print. We typically use pressurized air for cleaning the excess powder off.<\/p>\n

\"escape<\/p>\n

Now the questions remain how many escape holes a print needs and how big they need to be. And once again there is no universal answer to this: it all depends on the 3D printing material and the size of your print.<\/p>\n

Let\u2019s take a look at some examples: while we recommend at least two escape holes for multicolor prints, you should design more holes than that for gold, silver, brass, and bronze prints. While an escape hole with a diameter of at least 1.5 mm is fine for gold and silver prints, the openings for a ceramic object need to be at least 10 mm big. Once again, taking a look at the individual design guides will provide you with all the answers.<\/p>\n

How do I design escape holes?<\/strong><\/h2>\n

Again, the exact procedure depends on your software but the idea is often the same: create a cylinder at the bottom of your model and extrude or subtract from its wall (see image below). Meshmixer<\/a>\u2019s hollowing tools even come with a function that lets you create escape holes automatically.<\/p>\n

\"save<\/p>\n

Now that you know how to create hollow models and cut 3D printing costs, what\u2019s holding you back from <\/strong>uploading your 3D file here<\/strong><\/a> and creating a stunning 3D print in <\/strong>30+ different materials<\/strong><\/a>? You might also be interested in learning more about the <\/strong>5 mistakes to avoid when designing a 3D model for 3D printing<\/strong><\/a>.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Cutting down costs for 3D prints is the number one concern for many customers. In order to achieve this, we need to understand how costs for 3D prints are calculated. Probably the most important variable is the amount of material that is needed for printing your object. So all we need to do is to […]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"footnotes":""},"kbtopic":[47],"kbtag":[35,53],"class_list":["post-55496","kb","type-kb","status-publish","hentry","kbtopic-design","kbtag-3d-print","kbtag-cost"],"yoast_head":"\nTips to reduce 3D printing cost - FacFox Docs<\/title>\n<meta name=\"description\" content=\"Cutting down costs for 3D prints is the number one concern for many customers. In order to achieve this, we need to understand how costs for 3D prints are\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/facfox.com\/docs\/kb\/reduce-cost\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Tips to reduce 3D printing cost\" \/>\n<meta property=\"og:description\" content=\"Cutting down costs for 3D prints is the number one concern for many customers. In order to achieve this, we need to understand how costs for 3D prints are\" \/>\n<meta property=\"og:url\" content=\"https:\/\/facfox.com\/docs\/kb\/reduce-cost\" \/>\n<meta property=\"og:site_name\" content=\"FacFox Docs\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/facebook.com\/facfox3d\" \/>\n<meta property=\"og:image\" content=\"https:\/\/i.materialise.com\/blog\/wp-content\/uploads\/2015\/09\/hollow-3d-model-1024x683.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@facfox3d\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/facfox.com\/docs\/kb\/reduce-cost\",\"url\":\"https:\/\/facfox.com\/docs\/kb\/reduce-cost\",\"name\":\"Tips to reduce 3D printing cost - FacFox Docs\",\"isPartOf\":{\"@id\":\"https:\/\/facfox.com\/docs\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/facfox.com\/docs\/kb\/reduce-cost#primaryimage\"},\"image\":{\"@id\":\"https:\/\/facfox.com\/docs\/kb\/reduce-cost#primaryimage\"},\"thumbnailUrl\":\"https:\/\/i.materialise.com\/blog\/wp-content\/uploads\/2015\/09\/hollow-3d-model-1024x683.jpg\",\"datePublished\":\"2019-05-28T03:13:18+00:00\",\"description\":\"Cutting down costs for 3D prints is the number one concern for many customers. In order to achieve this, we need to understand how costs for 3D prints are\",\"breadcrumb\":{\"@id\":\"https:\/\/facfox.com\/docs\/kb\/reduce-cost#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/facfox.com\/docs\/kb\/reduce-cost\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/facfox.com\/docs\/kb\/reduce-cost#primaryimage\",\"url\":\"https:\/\/i.materialise.com\/blog\/wp-content\/uploads\/2015\/09\/hollow-3d-model-1024x683.jpg\",\"contentUrl\":\"https:\/\/i.materialise.com\/blog\/wp-content\/uploads\/2015\/09\/hollow-3d-model-1024x683.jpg\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/facfox.com\/docs\/kb\/reduce-cost#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/facfox.com\/docs\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Tips to reduce 3D printing cost\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/facfox.com\/docs\/#website\",\"url\":\"https:\/\/facfox.com\/docs\/\",\"name\":\"FacFox Docs\",\"description\":\"Knowledgebase of manufacturing\",\"publisher\":{\"@id\":\"https:\/\/facfox.com\/docs\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/facfox.com\/docs\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/facfox.com\/docs\/#organization\",\"name\":\"FACFOX,INC.\",\"url\":\"https:\/\/facfox.com\/docs\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/facfox.com\/docs\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/facfox.com\/docs\/wp-content\/uploads\/2020\/11\/foxdoc-favicon.png\",\"contentUrl\":\"https:\/\/facfox.com\/docs\/wp-content\/uploads\/2020\/11\/foxdoc-favicon.png\",\"width\":132,\"height\":133,\"caption\":\"FACFOX,INC.\"},\"image\":{\"@id\":\"https:\/\/facfox.com\/docs\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/facebook.com\/facfox3d\",\"https:\/\/x.com\/facfox3d\",\"https:\/\/instagram.com\/facfox3d\"]}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Tips to reduce 3D printing cost - FacFox Docs","description":"Cutting down costs for 3D prints is the number one concern for many customers. In order to achieve this, we need to understand how costs for 3D prints are","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/facfox.com\/docs\/kb\/reduce-cost","og_locale":"en_US","og_type":"article","og_title":"Tips to reduce 3D printing cost","og_description":"Cutting down costs for 3D prints is the number one concern for many customers. In order to achieve this, we need to understand how costs for 3D prints are","og_url":"https:\/\/facfox.com\/docs\/kb\/reduce-cost","og_site_name":"FacFox Docs","article_publisher":"https:\/\/facebook.com\/facfox3d","og_image":[{"url":"https:\/\/i.materialise.com\/blog\/wp-content\/uploads\/2015\/09\/hollow-3d-model-1024x683.jpg","type":"","width":"","height":""}],"twitter_card":"summary_large_image","twitter_site":"@facfox3d","twitter_misc":{"Est. reading time":"5 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/facfox.com\/docs\/kb\/reduce-cost","url":"https:\/\/facfox.com\/docs\/kb\/reduce-cost","name":"Tips to reduce 3D printing cost - FacFox Docs","isPartOf":{"@id":"https:\/\/facfox.com\/docs\/#website"},"primaryImageOfPage":{"@id":"https:\/\/facfox.com\/docs\/kb\/reduce-cost#primaryimage"},"image":{"@id":"https:\/\/facfox.com\/docs\/kb\/reduce-cost#primaryimage"},"thumbnailUrl":"https:\/\/i.materialise.com\/blog\/wp-content\/uploads\/2015\/09\/hollow-3d-model-1024x683.jpg","datePublished":"2019-05-28T03:13:18+00:00","description":"Cutting down costs for 3D prints is the number one concern for many customers. In order to achieve this, we need to understand how costs for 3D prints are","breadcrumb":{"@id":"https:\/\/facfox.com\/docs\/kb\/reduce-cost#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/facfox.com\/docs\/kb\/reduce-cost"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/facfox.com\/docs\/kb\/reduce-cost#primaryimage","url":"https:\/\/i.materialise.com\/blog\/wp-content\/uploads\/2015\/09\/hollow-3d-model-1024x683.jpg","contentUrl":"https:\/\/i.materialise.com\/blog\/wp-content\/uploads\/2015\/09\/hollow-3d-model-1024x683.jpg"},{"@type":"BreadcrumbList","@id":"https:\/\/facfox.com\/docs\/kb\/reduce-cost#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/facfox.com\/docs\/"},{"@type":"ListItem","position":2,"name":"Tips to reduce 3D printing cost"}]},{"@type":"WebSite","@id":"https:\/\/facfox.com\/docs\/#website","url":"https:\/\/facfox.com\/docs\/","name":"FacFox Docs","description":"Knowledgebase of manufacturing","publisher":{"@id":"https:\/\/facfox.com\/docs\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/facfox.com\/docs\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/facfox.com\/docs\/#organization","name":"FACFOX,INC.","url":"https:\/\/facfox.com\/docs\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/facfox.com\/docs\/#\/schema\/logo\/image\/","url":"https:\/\/facfox.com\/docs\/wp-content\/uploads\/2020\/11\/foxdoc-favicon.png","contentUrl":"https:\/\/facfox.com\/docs\/wp-content\/uploads\/2020\/11\/foxdoc-favicon.png","width":132,"height":133,"caption":"FACFOX,INC."},"image":{"@id":"https:\/\/facfox.com\/docs\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/facebook.com\/facfox3d","https:\/\/x.com\/facfox3d","https:\/\/instagram.com\/facfox3d"]}]}},"_links":{"self":[{"href":"https:\/\/facfox.com\/docs\/wp-json\/wp\/v2\/kb\/55496","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/facfox.com\/docs\/wp-json\/wp\/v2\/kb"}],"about":[{"href":"https:\/\/facfox.com\/docs\/wp-json\/wp\/v2\/types\/kb"}],"author":[{"embeddable":true,"href":"https:\/\/facfox.com\/docs\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/facfox.com\/docs\/wp-json\/wp\/v2\/comments?post=55496"}],"version-history":[{"count":0,"href":"https:\/\/facfox.com\/docs\/wp-json\/wp\/v2\/kb\/55496\/revisions"}],"wp:attachment":[{"href":"https:\/\/facfox.com\/docs\/wp-json\/wp\/v2\/media?parent=55496"}],"wp:term":[{"taxonomy":"kbtopic","embeddable":true,"href":"https:\/\/facfox.com\/docs\/wp-json\/wp\/v2\/kbtopic?post=55496"},{"taxonomy":"kbtag","embeddable":true,"href":"https:\/\/facfox.com\/docs\/wp-json\/wp\/v2\/kbtag?post=55496"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}