<!-- Home, Back using Javascript --> <div> <form> <input type="button" value="Home" onclick="window.location.href='/ep1000digfab/index.html'"> <input type="button" value="Back" onclick="history.back()"> </form> </div> <div style="height:2em"></div> <!-- Remember to change the title of the page --> # 3D Modelling Techniques [Presentation: 3D Model Part 2 - Revolve, Sculpt](ep1000_3dmodel2.pdf) ## Recap of Fusion 360 By now, you should be familiar with the following in Fusion 360 [![Fusion360_interface](images/0601_f260interface.jpg)](images/0601_f260interface.jpg) [Fusion 360 interface](https://productdesignonline.com/fusion-360-tutorials/learn-the-fusion-360-user-interface/) 1. Application Bar 2. Data Panel - Houses all your design files, Allows creation of new preojects. 3. Profile & Help - Allows settings of Preferences - Ensure that you have the Z-axis pointing up - All measurements to be done in mm 4. Toolbar - Essential command set in each area that you are working on 5. Browser - Lists objects in your design - Creation of object: Object - Component - Sketch - Controls visibility 6. ViewCube - Home view - Orientation of object 7. Canvas & Marking menu 8. Navigation Bar & Display Settings 9. Timeline - Shows order of operations - Allows editing and manipulation of features ### Workflow In the creation of any new design, a good workflow plan would be: 1. Sketch, on paper, how your overall design would look like - decide on profiles - 2D and 3D layouts 2. Obtain any dimensions that you may need to draw your object accurately - Measure and estimate - Obtain a canvas, to map the drawing 3. Create the object - Create the component, components help to break down the object - Create sketch of the profile of the object - From sketch, create a 3D model 4. Inpect and make corrections, adjustments. ### Tips & Tricks * [Origin, workplanes](https://youtu.be/Nlvy3rPCRwA) Start your sketch from the origin, it anchors the rest of your sketch to a specific point. Start watching at 6:00 (he rambles on a lot!) * [Constraints](https://youtu.be/_MpL9fPAUG4) - fix your sketchs so that they don't change accidentally * [5 tips for getting started](https://youtu.be/ezKZIvzVGRM) - gets you started the proper way ## Creating 3D Models There are 4 basic methods of creating a 3D Model: ### Extrusion Extrusion is the easiest method of creating a 3D model - Create a 2D closed profile in one of the planes (e.g. XY) - Extrude the profile in the third axis (e.g. Z) 3-types of extrusion are provided: - New Body - creates a new body - Join - joins extruded body with the existing body - Cut - uses the extrusion to remove unwanted parts Can use Extrude or Press-Pull in Fusion 360 - Desktop Makes: [Press Pull vs Extrusion in Fusion 360](https://youtu.be/elQ648fVpwA) Only good if you have a profile(s) to work with. ![Extruding a closed Profile](images/0602_extrusion.jpg) ### Revolution [3D Objects using Revolution](worksheets/3D_Objects_using_Revolution.pdf) Creates a 3D model based on a profile and an axis to revolve upon. - Draw a 2D closed profile on one of the planes (e.g. XY) - Revolve the object about the third axis (e.g. Z) - Revolution can be - Partial, based on angle, or limits - Full 360 - Lars Christensen: [How to Model Anything Round](https://youtu.be/zYMf6qncgwc) - Good for creating globes, sectors, cylinders, profiles. ![Profiles used for revolution](images/0603a_revolution.jpg) ![Results of revolution](images/0603b_revolution.jpg) - My lecture notes on [Creating Objects using Revolution](3D_Objects_using_Revolution.pdf) ### Lofting Create closed profiles in the plane outlining your shape Need to understand - Planes and Offset planes Use loft to create the 3D object by extrapolating the outlines from one profile to another. The extrapolation can be - regular, formed from the contours of the profiles - Mufasa CAD [Fusion 360 How To Loft Object, Point And Rails](https://youtu.be/-Z9ioh2NfwY) - center-line rail, formed by a line/arc perpendicular to the profiles - [Example from AutoDesk](https://forums.autodesk.com/t5/fusion-360-design-validate/introduction-to-loft-using-rail-curves-in-fusion/td-p/7296238) - Good for creating ducts, continous 3D models |Loft| | | |:--------:|:----:|:----:| |[![Create the profiles](images/0604a_loft.jpg)](images/0604a_loft.jpg)|[![Select the profiles](images/0604b_loft.jpg)](images/0604b_loft.jpg)|[![Results of loft](images/0604c_loft.jpg)](images/0604c_loft.jpg)| |Create the profiles on different planes|Loft > Select the profiles| Results| ### Sculpting Creating an object using a basic 3D shape, breaking up the shape into sections and then manipulating the shape to what you want. Like playing with plastercine, ideal for the creative-minded. Good tutorials on sculpting - Product Design Online: [How to Sculpt an Earbud in Fusion 360](https://youtu.be/dbJcnxWHneo) - Product Design Online: Sculpting for Plastic Parts in Fusion 360 - [Part 1](https://youtu.be/Vrg6h5h_vWs) - [Part 2](https://youtu.be/FIbmiTTEo_8) Good for creating objects without fixed profiles or need to be shaped - Can be very time-consuming - Has great effects |Sculpt| | |:--------:|:----:| |[![Create the form](images/0605a_sculpt.jpg)](images/0605a_sculpt.jpg)|[![Edit form](images/0605b_sculpt.jpg)](images/0605b_sculpt.jpg)| <!-- Home, Back using Javascript --> <div style="height:2em"></div> <div> <form> <input type="button" value="Home" onclick="window.location.href='/ep1000digfab/index.html'"> <input type="button" value="Back" onclick="history.back()"> </form> </div> <!--End of markdown area-->