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1 Autodesk Official Training Guide Essentials CADdoctor Autodesk Simulation 2015 Manual The exercises in this practice manual demonstrate features of CADdoctor Autodesk Simulation. July 2014

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3 2014 Autodesk, Inc. All rights reserved. Except as otherwise permitted by Autodesk, Inc., this publication, or parts thereof, may not be reproduced in any form, by any method, for any purpose. Certain materials included in this publication are reprinted with the permission of the copyright holder. Trademarks The following are registered trademarks or trademarks of Autodesk, Inc., and/or its subsidiaries and/or affiliates in the USA and other countries: 123D, 3ds Max, Algor, Alias, AliasStudio, ATC, AutoCAD LT, AutoCAD, Autodesk, the Autodesk logo, Autodesk 123D, Autodesk Homestyler, Autodesk Inventor, Autodesk MapGuide, Autodesk Streamline, AutoLISP, AutoSketch, AutoSnap, AutoTrack, Backburner, Backdraft, Beast, BIM 360, Burn, Buzzsaw, CADmep, CAiCE, CAMduct, CFdesign, Civil 3D, Cleaner, Combustion, Communication Specification, Constructware, Content Explorer, Creative Bridge, Dancing Baby (image), DesignCenter, DesignKids, DesignStudio, Discreet, DWF, DWG, DWG (design/logo), DWG Extreme, DWG TrueConvert, DWG TrueView, DWGX, DXF, Ecotect, ESTmep, Evolver, FABmep, Face Robot, FBX, Fempro, Fire, Flame, Flare, Flint, FMDesktop, ForceEffect, FormIt, Freewheel, Fusion 360, Glue, Green Building Studio, Heidi, Homestyler, HumanIK, i-drop, ImageModeler, Incinerator, Inferno, InfraWorks, Instructables, Instructables (stylized robot design/logo), Inventor LT, Inventor, Kynapse, Kynogon, LandXplorer, Lustre, MatchMover, Maya, Mechanical Desktop, MIMI, Mockup 360, Moldflow Plastics Advisers, Moldflow Plastics Insight, Moldflow, Moondust, MotionBuilder, Movimento, MPA (design/logo), MPA, MPI (design/logo), MPX (design/logo), MPX, Mudbox, Navisworks, ObjectARX, ObjectDBX, Opticore, Pipeplus, Pixlr, Pixlr-o-matic, Productstream, RasterDWG, RealDWG, ReCap, Remote, Revit LT, Revit, RiverCAD, Robot, Scaleform, Showcase, ShowMotion, Sim 360, SketchBook, Smoke, Socialcam, Softimage, Sparks, SteeringWheels, Stitcher, Stone, StormNET, TinkerBox, ToolClip, Topobase, Toxik, TrustedDWG, T-Splines, ViewCube, Visual LISP, Visual, VRED, Wire, Wiretap, WiretapCentral, XSI. All other brand names, product names, or trademarks belong to their respective holders. Disclaimer THIS PUBLICATION AND THE INFORMATION CONTAINED HEREIN IS MADE AVAILABLE BY AUTODESK, INC. AS IS. AUTODESK, INC. DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE REGARDING THESE MATERIALS. Published by: Autodesk, Inc. 111 Mclnnis Parkway San Rafael, CA 94903, USA

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5 Contents About this manual iii Using this manual iii Formatting used in this manual iv Practice Files Setup v Chapter 1 Introduction to CADdoctor Theory and Concepts - Overview of CADdoctor User interface (UI) Chapter 2 CADdoctor Practices CADdoctor Practice Exercise 1: Evaluate the quality of the model with small features using Autodesk Simulation Moldflow Adviser Exercise 2: Suppress fillets and small text using CADdoctor Exercise 3: Evaluate the quality of the simplified model using Autodesk Simulation Moldflow Adviser Exercise 4: Evaluate the quality of the model with small features using Autodesk Simulation Moldflow Insight Exercise 5: Suppress logo, fillets and small text using CADdoctor Exercise 6: Evaluate the quality of the simplified model using Autodesk Simulation Moldflow Insight Exercise 7: Evaluate the quality of the surfaces on the model using Autodesk Simulation Moldflow Insight Exercise 8: Fixing connectivity issues in the model using CADdoctor Exercise 9: Evaluate the quality of the model corrected in Autodesk Simulation Moldflow Insight Competency check - Introduction to CADdoctor Evaluation Sheet - Introduction to CADdoctor Contents i

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7 About this manual The CADdoctor for Autodesk Simulation manual is designed with the new CADdoctor user in mind. In creating this manual, our goal is to introduce you to some skills needed to import, simplify and cleanup models. Using this manual This manual is separated into chapters. Each of the chapters covers a specific topic and includes the following sections: Aim Describes the learning objectives of the chapter. Why Do It Outlines the reasons for following the prescribed guidance, suggestions and methodology within the chapter. Overview A complete outline of what will be covered within the chapter. Practice This section contains hands-on exercises used to reinforce what was learned. The practice section guides you through the steps necessary to complete a specific task. Theory and concepts Theory and concepts discusses background information on the subject matter of the chapter. This is designed to give the user detailed background information regarding important concepts and work flows. iii

8 Formatting used in this manual Tasks To perform a step on the computer 1. A task is used in the practice section of a chapter to indicate steps to be done on the computer in the sequence presented. 2. List of numbered steps to complete the task. 2.1 Tasks can have a sub-step. A bulleted list provides information on a step, or a non-sequential actions to be done. Bulleted lists Tip A second level bulleted list provides information on a sub-step. Items in a bulleted list are often different pieces of information related to the topic. It does not represent a list of steps that have to be followed in sequence. Note Warning A tip is a useful piece of information that is normally associated with a task or procedure. Something that can be done to make a task easier or more efficient. A note is generally used to highlight some background or theoretical information. A warning is used to inform you of possible problems if the procedure described is not followed exactly. iv

9 Aim Chapter 1 Introduction to CADdoctor The aim of this chapter is to learn how CADdoctor can be used to fix and optimize the original CAD file. Why do it When importing a model inside Autodesk Simulation Moldflow Insight or Autodesk Simulation Moldflow Adviser previously optimized by CADdoctor the cleanup time process inside the simulation program is reduced. Overview In this chapter, you will be introduced to CADdoctor. You will learn about: Program overview. Supported models. You will practice with the program features: Translation functions Simplification functions. Automatic fixing tools. 1

10 Theory and Concepts - Overview of CADdoctor CADdoctor is a tool that enables users to import, clean-up and simplify CAD geometry for use in Autodesk Simulation Moldflow Insight and Autodesk Simulation Moldflow Adviser. Most of the detected errors can be resolved by CADdoctor's automatic healing functionality. If any errors remain after automatic healing, you can resolve them with a suite of tools provided by CADdoctor. This process is referred to as manual healing. User interface (UI) The CADdoctor graphical user interface is used to diagnose, fix and simplify models (see Figure 1). Figure 1: CADdoctor user interface The CADdoctor User Interface is divided into six main sections which are described in Table 1 and shown in Figure 2 on page 3. 2 Chapter 1 Introduction to CADdoctor

11 Table 1: CADdoctor User Interface sections Section 1. Menu Bar Access to all of the commands is possible from the main menu bar. 2. Main panel 3. Check and Modification Menu Tool Bar 4. Navigation Displays detected errors, source and target CADsystems, etc. These include the primary buttons for checking the model, stitching unconnected faces (Free Edges), automatic healing and so on. Structure Tab: shows the structure of imported model - such as assembly, body, volume, shell and group of independent elements. Work Tab: shows the check results and icons for healing. Result Tab: shows the information of the Error Information File. These include the primary buttons for checking the model, stitching unconnected faces (Free Edges), automatic healing and so on. Modification Tool and Auxiliary Tool are displayed according to the check items. 5. Smart Filter This menu is used during selection operations. 6. View Menu Tool Bar This toolbar contains operations relevant to the view window. 7. View Window Imported model data is displayed in the view window Figure 2: CADdoctor user interface sections Chapter 1 Introduction to CADdoctor 3

12 CADdoctor uses Microsoft Windows standards. Like other Microsoft Windows based software programs, there is more than one-way to complete a task using: Menus. Toolbars. Shortcut keys. Context menu. Dialog boxes. Menus The menu structure for CADdoctor includes the following components: File. View. Modify. Analysis. Window. Table 2: New Open Save Save As File menu commands Edit. Check. Create. Geometry Verification. Help. Prepares CADdoctor to import a new model. Open any model with the extension of *.drfx_as. Saves the selected model. Allows a model to be saved with a new name. 4 Chapter 1 Introduction to CADdoctor

13 Table 2: File menu commands (Continued) Import Export Print Export Image System Preferences Display Preferences Import/Export Settings File Used Recently Exit Table 3: Undo Edit menu commands CADdoctor can import these file types: IGES files(*.igs, *.iges) Parasolid files (*.x_t, *x_b) Step (*.stp, *step) Pro/E files (*.prt, prt.*) CATIA V5 files (*.CATPart) Solidworks (*.sldprt) Inventor part files (*ipt) SAT (v4-v7) (*.sat) Rhino (*.3dm) Models may only be exported in Autodesk Simulation Moldflow s proprietary UDM (*.udm) format which is supported by Autodesk Simulation Moldflow and Autodesk Simulation Moldflow Insight. Opens the Print dialog so the selected model can be printed. Exports image in view window as a bitmap (*.bmp) file. Opens a dialog where various system settings can be changed. Opens a dialog where various user interface settings can be changed. Opens a dialog to set the options for importing and exporting files The last four models that were opened in the current session are listed. Exits CADdoctor. If there are any unsaved models, you will be prompted to save them. Reverses the last action made Redo Delete Restores the last action made after undoing it. Deletes the selected entities. Chapter 1 Introduction to CADdoctor 5

14 Table 4: View menu commands Auto Regen Regen Redraw ToolBar Display type Wireframe Shading Zebra Intersection Curves Show Grid Reverse view Change Display Attribute Use Original CAD Colors Show Elements Layers Fit Change View Operation The drawing accuracy is adjusted automatically to fit the model size. Check "Off" if the response of view operations is slow. Regenerates and displays the view. Redraws the view. Use this option when the display needs to be refreshed. Opens a sub menu where all toolbars that can be turned on or off. Displays elements in wireframe mode. Displays elements in shading mode. Displays elements in zebra mode. Displays the intersection curves created by [Create All Intersection Curves]. Displays the grid on the view. Displays the hidden elements on the view. Use this feature to change the way elements, are displayed. For example, you can change the color or line of an edge. Change between the model's original display attributes and the default CADdoctor display attributes. Opens a sub menu where the display mode for the selected elements can be changed. Switches between Show/NoShow of elements depending on the layers. Scales the model to fit in the window. Opens a sub menu to change the view direction of your model. Opens a sub menu with different commands to manipulate the model. Display Section Fix Rotation Center Displays your model as if it were sliced. Select a point to become the rotational center. 6 Chapter 1 Introduction to CADdoctor

15 Table 4: View menu commands (Continued) Fix Rotation Axis Deactivate Rotation Setting Table 5: Options Execute Table 6: Options Auto Small Elements Tangency Curvature Irregular Loop Check menu commands Set an axis to become the rotational axis. Cancels the rotational center or axis. Set the system tolerance, and parameters for checking the model when in Data Translation Mode or in Simplification Mode. Checks your model for errors which may cause problems when simplifying or translating into the target CAD system. Modify menu commands Opens dialog where settings for the Auto-Stitch, Auto-Heal and Interactive Modification can be changed. Opens a sub menu from where you can select the Auto-Stitch and Auto-Heal to be performed. Opens a sub menu from where different types of small features can be removed. Opens a sub menu that will divide a surface at the folding point or will smooth the connection between two faces. Opens a sub menu which will allow you to smooth the connections between edges or two faces that have a problem with a curvature discontinuity. Opens a sub menu that will allow you to arrange and heal intersecting loops. Duplication Opens a sub menu which allows you to delete duplicate faces, shells or surfaces. Chapter 1 Introduction to CADdoctor 7

16 Table 6: Modify menu commands (Continued) Gap between Edge and Surface Replace Curve Replace Surface Divide/Extend Repair Solid Table 7: Point Curve Face/Surface Table 8: Info Check Element Info Distance Opens a sub menu providing you with options to fix gaps between edges and surfaces. Opens a sub menu providing you with options to redefine or smooth an irregular curve. Opens a sub menu providing you with options to redefine or smooth an irregular surface. Opens a sub menu providing you with options to break, extend or redefine curves or surfaces. Opens a sub menu providing you with different options to repair the model by trimming, stitching or making holes. Create menu commands Opens a sub menu with different options to create points. Opens a sub menu with different options to create curves. Opens a sub menu with different options to create surfaces. Analysis menu commands Displays detailed information about selected elements. Checks only the errors related to the chosen element. Calculates the distance between two elements. Related Element Number of Element Shortest Curve Highlights all entities related to a selected entity. Displays the main statistics of the model. Displays the shortest curve in the model and display its dimensions. 8 Chapter 1 Introduction to CADdoctor

17 Table 8: Analysis menu commands (Continued) Curves Angle Face Angle Arc Diameter Fillet Radius Volume of Parts Control Points Curvature Vertex of Edge Normal Vector of Surface Display DE Table 9: Options Boundary Geometry Fillet Chamfer Round Hole Displays the enclosed angle between two curves. Measures the angle between two specified faces. Calculates the diameter / radius of the selected arc. Measures the radius to the selected face. Measures the volume to the selected parts. Displays control points. Simplification menu commands Displays the curvature of the curve or face. Displays the vertices at both ends of a curve. Displays the direction of the normal vector for a selected face. Displays the DE of the elements in an imported IGES model. *DE: Unique identification number for each element in an IGES model. Sets the tolerance and options for simplification functions. Opens a sub menu with options to check all the model and add the attribute of Boundary Geometry (Fillet/Chamfer) according to the threshold. Opens a sub menu with options to recognize fillet and remove them. Opens a sub menu with a list of topics related to detecting chamfer in a model, and filling that space. Opens a sub menu with options to recognize round holes in the model (smaller than the threshold) and remove them. Generic Hole Opens a sub menu with options to recognize generic holes in the model (smaller than the threshold) and remove them. Chapter 1 Introduction to CADdoctor 9

18 Table 9: Simplification menu commands (Continued) Step Groove Boss/Rib Sheet Hole Projection Logo Mergeable Faces Unbendable Curves (Fair Curves) Shell Connection Narrow Face Remove Faces with Fix Fill Open Areas (Extend Neighboring Faces) Opens a sub menu with options to check the gap between parallel faces and recognizes detected gaps as step to be removed. Opens a sub menu with options to check all the model and add the attribute of Groove according to the threshold and remove them. Opens a sub menu with options to recognize selected bosses/ribs and removes them. Opens a sub menu with options to recognize specified sheet holes on the no thickness model and removes them. Opens a sub menu with options to recognize the specified projection to select the faces under them. It is also possible to uncheck the recognized projection. Opens a sub menu with options to check all the model and add the attribute of Logos according to the threshold. Opens a sub menu with options to check and merges a number of faces to create one face. Opens a sub menu with options to check the entire model to recalculate the broken segments. Opens a sub menu with options to check and divide a shell by creating a plane-cut that allows you to create a plane cut with less operations than using the [Create] - [Curve] - [On Surface] function to divide a shell. It also adds an attribute on boundary so that you refer to them to merge the divided shells. It is an effective method to roughly merge two isolated shells. Opens a sub menu with options to recognize and remove a narrow face whose width is smaller than the specified value. Removes the specified faces and fix the hole generated by the removal by extending the surrounding faces. Extends the surrounding faces automatically to fill open area. Connect two Open Areas Fill Crack Connects the gap between two open areas by extending the surrounding faces. Creates faces between two specified edge groups. This function is useful to fill a big open area. 10 Chapter 1 Introduction to CADdoctor

19 Simplification functions should be performed after errors in the model have been fixed. Table 10: Geometry Verification menu commands Settings Geometry Verification Mode Synchronize View Target Model Open Left Model Open Right Model Partial Geometry Verification Point Indicator Create Report Sets options for the Geometry Verification Mode. Toggles the Geometry Verification mode. If you are already in the Geometry Verification Mode, it will switch the mode back to standard mode. Synchronizes the viewing operations along with the model in partitioned model in Geometry Verification Mode. Opens a sub menu with options to store/copy/delete the compared model. Opens the model on the left view. Opens the model on the right view. Table 11: Windows menu commands New Allows you to run the partial comparison after a modification and go back to the process. Opens a sub menu with options to add point indicators/measuring indicators on entities by selecting face/edge/point in Geometry Verification Mode or to remove them. Creates an XML report automatically from the comparison result. Cascade Opens a new model window. Displays all open model windows as a cascade from the upper left to the lower right of the screen. Tile Open model list Tiles all open model windows. Windows will be displayed side by side or in a grid. Displays the open models. The active model can be changed. Chapter 1 Introduction to CADdoctor 11

20 Table 12: Help menu commands Index Context Help Version information (CADdoctor) Toolbars Toolbars are groups of commands with similar functions. Toolbars can be docked on any side of the CADdoctor interface, or can float over the display. The toolbars include: Information. Edit. View operation. Selection. Create. Analysis. Geometry verification. Help. Activates the on-line help and opens the 'Index' tab. Activates the context sensitive help. Opens a dialog indicating which version of CADdoctor you are using. File. View. Pick filter. Show element. Modify. Simplification. DE search. Arrange. Any toolbar can be turned off with the View > Toolbars command, or when you right-click to activate the context menu over a docked toolbar. When a cursor hovers over an icon, a text popup appears, indicating the function of the icon, as shown in Figure 3. The toolbar icons contain the same commands that are in the main menu. Figure 3: Icon rollover text 12 Chapter 1 Introduction to CADdoctor

21 Shortcut keys Shortcut keys in CADdoctor follow Microsoft Windows standards for common commands, such as Ctrl + C as a shortcut for Copy. Most shortcuts are a key combination starting with the Ctrl key. If a command has a shortcut, the shortcut is listed with the command on the menu. Most of the Shortcut keys are shown in Table 13: Table 13: Shortcut keys Context menu The context menu is activated with a right mouse click. The available commands on the menu will be different depending where you right-click. The context menu can be clicked: Shortcut key Ctrl + N Ctrl + O Ctrl + S Ctrl + Z Ctrl + Y Ctrl + D Ctrl + R Ctrl + F F1 In a docked toolbar. In the view window. On a selected entity. Dialog boxes Menu Initialize Open Save Undo Redo Redraw Regen Auto Scale Help (Index) Many menu commands open dialog boxes, as the icons on the toolbar do. When you choose a menu item, if the command has three periods after the name a dialog will open. An example of this is in the file menu. The Open and System Preferences options open dialogs if any of them are selected. Chapter 1 Introduction to CADdoctor 13

22 Frequently used View operations These short-cut type view operations are used frequently and helps decreasing clicking icons. Various modifier keys work with the left-mouse button for quick display manipulation. This operation is sometimes useful when viewing shaded data, particularly when zooming in and out. Table 14: View operations Icon Description Fit: Regen: Pan: Zoom Area: Rotate 3D: Shading Wireframe Ctrl + F or View > Auto Scale Fits the model to the screen. Ctrl + R, Regenerates the model and redisplays it. Shift + left-mouse Pan the model on the screen. Ctrl + middle-mouse (drag vertically) Dynamically magnify the model. Shift + Ctrl + left-mouse Rotate the model about all 3 axes. Toggle on and off shading for the part. Toggle on and off the wire frame of the part. 14 Chapter 1 Introduction to CADdoctor