In traditional manufacturing, an object might be created by taking a block of material and removing (or subtracting) material to get to the desired shape. The layer by layer approach central to 3D printing is an example of additive manufacturing. Using the digital blueprint, the printer (loaded with the chosen material) extrudes the material layer upon layer, similar to the way that a regular printer deposits ink as the printer head moves back and forth across the page-only dimensionally instead of just in flat, horizontal rows. Depending on the printer, 3D printed objects can be made from a variety of materials, including rubber, plastics, paper, and even metals. In order to create a file for 3D printing, designers use computer-aided software to create a 3D model of an object that can then be printed with a special 3D printer. With 3D printing, the z axis comes into play as the printer adds "depth" to the print. Instead, using a digital design file as a blueprint, a 3D printer prints out the object, layer by layer. There are no expensive molds and machines that have to be made, customized, or altered to handle each design or each change. With 3D printing, you can make just one of any item you can imagine-as long as you can create a digital 3D model. Or maybe what you need is a specific little piece to replace something that is broken, a piece that is hard to find or no longer made. You may have read stories about "printed" objects ranging from artificial organs to cell phone accessories and other tchotchkes, things that someone wants to make but doesn't need a million of or even a hundred. What is 3D printing all about? What does it really mean for a printer to "print" a ready-made, fully-functional object, on demand, similar to the way you might request an item from a vending machine? 3D printing is a game changer, and industry and DIY and maker communities alike are excited by what 3D print technologies enable, but the printer in your school computer lab or home office probably still prints out the same flat images and text as it always did. In addition to giving individual inventors and designers new options for testing out ideas, 3D printing brings new possibility to many big industries, from automotive to healthcare. From replacement parts for household objects or toys that are broken to one-of-a-kind creations to a large-scale approach to manufacturing that may revolutionize the way products are made, 3D printing has changed how people think about "making" things that once required industrial machines and molds. With a hands-on modeling and design project using Autodesk 123D Make, students can design and assemble a layered 3D model for a better understanding of how 3D printing and additive manufacturing works.ģD printing is all the buzz. You may not post this resource anywhere on the Internet.3D printing has opened a cool new frontier of custom manufacturing that brings freedom to individuals interested in design, invention, or just in need of a rare or unusual part. If your colleagues would like to use this file, please purchase additional licenses at a discount. You may not modify content, translate the file, share the file, or resell the content in any way. Keywords: 3D layers of the Earth project, 3D Earth's layers project, 3D Earth Layers project, 3D model of the layers of the Earth, 3D model layers of the Earth project, 3D layers of the Earth project ideas.īy purchasing this file, you are agreeing to use this file in your classroom only. This Earth's layers project for middle school includes directions, research/notes sheets, and rubric.ģD model layers of the Earth project topics covered include: This project will have your students creating amazing 3D projects of the layers of the Earth.
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