Exploring Freecad Freecad Is a 3D CAD/CAE Parametric Modeling Application
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Drawing in 3D in a Realistic 3D World the Observer Becomes an Actor Whose Actions Provoke Reactions That Leave Tracks in Virtual Reality
PROGRAMMING Coin 3D – Interaction Interactive 3D Worlds with Coin and Qt Drawing in 3D In a realistic 3D world the observer becomes an actor whose actions provoke reactions that leave tracks in virtual reality. Qt and Coin allow you to program animated and interactive 3D worlds quickly and easily.We take a look at how you can interact with your new 3D world and create new effects. BY STEPHAN SIEMEN scene. This illustration is right mouse button deletes all the dots based on an example from the scene. from Inventor Mentor ([3], Chapter 10, The Right Choice example 2), how- A program that needs to reflect a user’s ever, we have wishes interactively, needs to select and expanded on it modify individual objects in the scene and moved from graph. This example adds new dots to Motif to using dotCoordinates and tells the dots node to Qt and SoQt. draw the new dots. Figure 2 Nodes can be accessed and selected by shows the reference to their position in the graph. scene graph for the drawing Each group node provides a method program. It requires only four called getChild() for this purpose. Figure nodes, and the user can edit three of 2 shows how the program references them dynamically (only the lighting individual nodes via the root of the remains constant). Pressing the center scene graph. However, this simple mouse button rotates the camera about method is extremely error-prone: if three dimensional scene appears the source. dotCoor- far more realistic if it is animated dinates and dots are Aand the user can interact with it. -
Openscad User Manual (PDF)
OpenSCAD User Manual Contents 1 Introduction 1.1 Additional Resources 1.2 History 2 The OpenSCAD User Manual 3 The OpenSCAD Language Reference 4 Work in progress 5 Contents 6 Chapter 1 -- First Steps 6.1 Compiling and rendering our first model 6.2 See also 6.3 See also 6.3.1 There is no semicolon following the translate command 6.3.2 See Also 6.3.3 See Also 6.4 CGAL surfaces 6.5 CGAL grid only 6.6 The OpenCSG view 6.7 The Thrown Together View 6.8 See also 6.9 References 7 Chapter 2 -- The OpenSCAD User Interface 7.1 User Interface 7.1.1 Viewing area 7.1.2 Console window 7.1.3 Text editor 7.2 Interactive modification of the numerical value 7.3 View navigation 7.4 View setup 7.4.1 Render modes 7.4.1.1 OpenCSG (F9) 7.4.1.1.1 Implementation Details 7.4.1.2 CGAL (Surfaces and Grid, F10 and F11) 7.4.1.2.1 Implementation Details 7.4.2 View options 7.4.2.1 Show Edges (Ctrl+1) 7.4.2.2 Show Axes (Ctrl+2) 7.4.2.3 Show Crosshairs (Ctrl+3) 7.4.3 Animation 7.4.4 View alignment 7.5 Dodecahedron 7.6 Icosahedron 7.7 Half-pyramid 7.8 Bounding Box 7.9 Linear Extrude extended use examples 7.9.1 Linear Extrude with Scale as an interpolated function 7.9.2 Linear Extrude with Twist as an interpolated function 7.9.3 Linear Extrude with Twist and Scale as interpolated functions 7.10 Rocket 7.11 Horns 7.12 Strandbeest 7.13 Previous 7.14 Next 7.14.1 Command line usage 7.14.2 Export options 7.14.2.1 Camera and image output 7.14.3 Constants 7.14.4 Command to build required files 7.14.5 Processing all .scad files in a folder 7.14.6 Makefile example 7.14.6.1 Automatic -
Algebraic Methods for Geometric Modeling Julien Wintz
Algebraic Methods for Geometric Modeling Julien Wintz To cite this version: Julien Wintz. Algebraic Methods for Geometric Modeling. Mathematics [math]. Université Nice Sophia Antipolis, 2008. English. tel-00347162 HAL Id: tel-00347162 https://tel.archives-ouvertes.fr/tel-00347162 Submitted on 14 Dec 2008 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Universit´ede Nice Sophia-Antipolis Ecole´ Doctorale STIC THESE` Pr´esent´ee pour obtenir le titre de : Docteur en Sciences de l’Universit´ede Nice Sophia-Antipolis Sp´ecialit´e: Informatique par Julien Wintz Algebraic Methods for Geometric Modeling Soutenue publiquement `al’INRIA le 5 Mai 2008 devant le jury compos´ede : Pr´esident : Andr´e Galligo Universit´ede Nice, France Rapporteurs : Gershon Elber Technion, Israel Tor Dokken Sintef, Norway Examinateurs : Pascal Schreck Universit´eLouis Pasteur, France Christian Arber Missler, France Directeur : Bernard Mourrain Inria Sophia-Antipolis, France Algebraic methods for geometric modeling Julien Wintz Abstract The two fields of algebraic geometry and algorithmic geometry, though closely related, are traditionally represented by almost disjoint communi- ties. Both fields deal with curves and surfaces but objects are represented in different ways. While algebraic geometry defines objects by the mean of equations, algorithmic geometry use to work with linear models. -
CAD for VEX Robotics
CAD for VEX Robotics (updated 7/23/20) The question of CAD comes up from time to time, so here is some information and sources you can use to help you and your students get started with CAD. “COMPUTER AIDED DESIGN” OR “COMPUTER AIDED DOCUMENTATION”? First off, the nature of VEX in general, is a highly versatile prototyping system, and this leads to “tinkerbots” (for good or bad, how many robots are truly planned out down to the specific parts prior to building?). The team that actually uses CAD for design (that is, CAD is done before building), will usually be an advanced high school team, juniors or seniors (and VEX-U teams, of course), and they will still likely use CAD only for preliminary design, then future mods and improvements will be tinkered onto the original design. The exception is 3d printed parts (U-teams only, for now) which obviously have to be designed in CAD. I will say that I’m seeing an encouraging trend that more students are looking to CAD design than in the past. One thing that has helped is that computers don’t need to be so powerful and expensive to run some of the newer CAD software…especially OnShape. Here’s some reality: most VEX people look at CAD to document their design and create neat looking renderings of their robots. If you don't have the time to learn CAD, I suggest taking pictures. Seriously though, CAD stands for Computer Aided Design, not Computer Aided Documentation. It takes time to learn, which is why community colleges have 2-year degrees in CAD, or you can take weeks of training (paid for by your employer, of course). -
Metadefender Core V4.12.2
MetaDefender Core v4.12.2 © 2018 OPSWAT, Inc. All rights reserved. OPSWAT®, MetadefenderTM and the OPSWAT logo are trademarks of OPSWAT, Inc. All other trademarks, trade names, service marks, service names, and images mentioned and/or used herein belong to their respective owners. Table of Contents About This Guide 13 Key Features of Metadefender Core 14 1. Quick Start with Metadefender Core 15 1.1. Installation 15 Operating system invariant initial steps 15 Basic setup 16 1.1.1. Configuration wizard 16 1.2. License Activation 21 1.3. Scan Files with Metadefender Core 21 2. Installing or Upgrading Metadefender Core 22 2.1. Recommended System Requirements 22 System Requirements For Server 22 Browser Requirements for the Metadefender Core Management Console 24 2.2. Installing Metadefender 25 Installation 25 Installation notes 25 2.2.1. Installing Metadefender Core using command line 26 2.2.2. Installing Metadefender Core using the Install Wizard 27 2.3. Upgrading MetaDefender Core 27 Upgrading from MetaDefender Core 3.x 27 Upgrading from MetaDefender Core 4.x 28 2.4. Metadefender Core Licensing 28 2.4.1. Activating Metadefender Licenses 28 2.4.2. Checking Your Metadefender Core License 35 2.5. Performance and Load Estimation 36 What to know before reading the results: Some factors that affect performance 36 How test results are calculated 37 Test Reports 37 Performance Report - Multi-Scanning On Linux 37 Performance Report - Multi-Scanning On Windows 41 2.6. Special installation options 46 Use RAMDISK for the tempdirectory 46 3. Configuring Metadefender Core 50 3.1. Management Console 50 3.2. -
Online Help Startpage
Online_Help_Startpage Online Help Startpage Welcome to the FreeCAD on-line help This document has been automatically created from the contents of the official FreeCAD wiki documentation, which can be read online at http://apps.sourceforge.net/mediawiki/free-cad/index.php?title=Main_Page . Since the wiki is actively maintained and continuously developed by the FreeCAD community of developers and users, you may find that the online version contains more or newer information than this document. But neverthless, we hope you will find here all information you need. In case you have questions you can't find answers for in this document, have a look on the FreeCAD forum, where you can maybe find your question answered, or someone able to help you. How to use This document is divided into several sections: introduction, usage, scripting and development, the last three address specifically the three broad categories of users of FreeCAD: end-users, who simply want to use the program, power-users, who are interested by the scripting capabilities of FreeCAD and would like to customize some of its aspects, and developers, who consider FreeCAD as a base for developing their own applications. If you are comletely new to FreeCAD, we suggest you to start simply from the introduction. Contribute As you may have experienced sometimes, programmers are really bad help writers! For them it is all completely clear because they made it that way. Therefore it's vital that experienced users help us to write and revise the documentation. Yes, we mean you! How, you ask? Just go to the Wiki at http://apps.sourceforge.net/mediawiki/free-cad/index.php in the User section. -
Experiences in Using Open Source Software for Teaching Electronic Engineering CAD
Experiences in Using Open Source Software for Teaching Electronic Engineering CAD Dr Simon Busbridge1 & Dr Deshinder Singh Gill School of Computing, Engineering and Mathematics, University of Brighton, Brighton BN2 4GJ [email protected] Abstract Embedded systems and simulation distinguish modern professional electronic engineering from that learnt at school. First year undergraduates typically have little appreciation of engineering software capabilities and file handling beyond elementary word processing. This year we expedited blended teaching through the experiential based learning process via open source engineering software. Students engaged with the entire electronic engineering product creation process from inception, performance simulation, printed circuit board design, manufacture and assembly, to cabinet design and complete finished product. Currently students learn software skills using a mixture of electronic and mechanical engineering software packages. Although these have professional capability they are not available off-campus and are sometimes surprisingly poor in simulating real world devices. In this paper we report use of LTspice, FreePCB and OpenSCAD for the learning and teaching of analogue electronics simulation and manufacture. Comparison of the software options, the type of tasks undertaken, examples of student assignments and outputs, and learning achieved are presented. Examples of assignment based learning, integration between the open source packages and difficulties encountered are discussed. Evaluation of student attitudes and responses to this method of learning and teaching are also discussed, and the educational advantages of using this approach compared to the use of commercial packages is highlighted. Introduction Most educational establishments use software for simulating or designing engineering. Most commercial packages come with an academic licence which restricts access to on-site computers. -
Openscad User Manual/Print Version Table of Contents Introduction First
OpenSCAD User Manual/Print version Table of Contents 1. Introduction 2. First Steps 3. The OpenSCAD User Interface 4. The OpenSCAD Language 1. General 2. Mathematical Operators 3. Mathematical Functions 4. String Functions 5. Primitive Solids 6. Transformations 7. Conditional and Iterator Functions 8. CSG Modelling 9. Modifier Characters 10. Modules 11. Include Statement 12. Other Language Feature 5. Using the 2D Subsystem 1. 2D Primitives 2. 3D to 2D Projection 3. 2D to 2D Extrusion 4. DXF Extrusion 5. Other 2D formats 6. STL Import and Export 1. STL Import 2. STL Export 7. Commented Example Projects 8. Using OpenSCAD in a command line environment 9. Building OpenSCAD from Sources 1. Building on Linux/UNIX 2. Cross-compiling for Windows on Linux or Mac OS X 3. Building on Windows 4. Building on Mac OS X 10. Libraries 11. Glossary 12. Index Introduction OpenSCAD is a software for creating solid 3D CAD objects. It is free software (http://www.gnu.org/philosophy/free-sw.html) and available for GNU/Linux (http://www.gnu.org/) , MS Windows and Apple OS X. Unlike most free software for creating 3D models (such as the well-known application Blender (http://www.blender.org/) ), OpenSCAD does not focus on the artistic aspects of 3D modelling, but instead focuses on the CAD aspects. So it might be the application you are looking for when you are planning to create 3D models of machine parts, but probably is not what you are looking for when you are more interested in creating computer- animated movies. OpenSCAD is not an interactive modeller. -
Programming Resume
Thomas John Hastings Programming Resume Introduction: I am a highly motivated self-starter with a passion for problem solving. As the owner of a thriving entertainment agency, Big Top Entertainment, I used coding as a way to automate and improve our business processes. I also designed, built and programmed my own unique performance equipment. Since the pandemic and recurring lockdowns have put live entertainment on hold, I have repurposed my passion for programming into a full time focus. I am looking for a challenge, to be involved in building something, learning new technology and sharing the knowledge I have gained from my own projects. Programming – languages and frameworks: Processing I have extensive knowledge of this Java-based creative programming language. The great thing about Processing is the way you can deploy to Desktop, Mobile, and Cloud with only a few modifications to the same code base. Android (Java) I have seven Android apps published to the Google Play Store, five of which are written in Java. I have developed many more for personal use, including the most recent, CoronaVirusSA, an open source app which graphs reliable stats on the COVID-19 outbreak in South Africa. JavaScript Anyone developing for the web needs to know JavaScript. I am familiar with the Flask back end with Jinja, Bootstrap, JQuery, as well as the excellent Tabulator library for tables. Currently (2020/21) my free time is spent on a couple of entertainment related side projects using this stack. Linux I have been using Ubuntu as my main computing system for over 10 years, both in the cloud (DigitalOcean) and on my Laptop. -
Development of a Coupling Approach for Multi-Physics Analyses of Fusion Reactors
Development of a coupling approach for multi-physics analyses of fusion reactors Zur Erlangung des akademischen Grades eines Doktors der Ingenieurwissenschaften (Dr.-Ing.) bei der Fakultat¨ fur¨ Maschinenbau des Karlsruher Instituts fur¨ Technologie (KIT) genehmigte DISSERTATION von Yuefeng Qiu Datum der mundlichen¨ Prufung:¨ 12. 05. 2016 Referent: Prof. Dr. Stieglitz Korreferent: Prof. Dr. Moslang¨ This document is licensed under the Creative Commons Attribution – Share Alike 3.0 DE License (CC BY-SA 3.0 DE): http://creativecommons.org/licenses/by-sa/3.0/de/ Abstract Fusion reactors are complex systems which are built of many complex components and sub-systems with irregular geometries. Their design involves many interdependent multi- physics problems which require coupled neutronic, thermal hydraulic (TH) and structural mechanical (SM) analyses. In this work, an integrated system has been developed to achieve coupled multi-physics analyses of complex fusion reactor systems. An advanced Monte Carlo (MC) modeling approach has been first developed for converting complex models to MC models with hybrid constructive solid and unstructured mesh geometries. A Tessellation-Tetrahedralization approach has been proposed for generating accurate and efficient unstructured meshes for describing MC models. For coupled multi-physics analyses, a high-fidelity coupling approach has been developed for the physical conservative data mapping from MC meshes to TH and SM meshes. Interfaces have been implemented for the MC codes MCNP5/6, TRIPOLI-4 and Geant4, the CFD codes CFX and Fluent, and the FE analysis platform ANSYS Workbench. Furthermore, these approaches have been implemented and integrated into the SALOME simulation platform. Therefore, a coupling system has been developed, which covers the entire analysis cycle of CAD design, neutronic, TH and SM analyses. -
Freecad a Manual.Pdf
Table of Contents Introduction 1.1 Discovering FreeCAD 1.2 What is FreeCAD? 1.2.1 Installing 1.2.2 Installing on Windows 1.2.2.1 Installing on Linux 1.2.2.2 Installing on Mac OS 1.2.2.3 Uninstalling 1.2.2.4 Setting basic preferences 1.2.2.5 Installing additional content 1.2.2.6 The FreeCAD interface 1.2.3 Workbenches 1.2.3.1 The interface 1.2.3.2 Customizing the interface 1.2.3.3 Navigating in the 3D view 1.2.4 A word about the 3D space 1.2.4.1 The FreeCAD 3D view 1.2.4.2 Selecting objects 1.2.4.3 The FreeCAD document 1.2.5 Parametric objects 1.2.6 Import and export to other filetypes 1.2.7 Working with FreeCAD 1.3 All workbenches at a glance 1.3.1 Traditional modeling, the CSG way 1.3.2 Traditional 2D drafting 1.3.3 Modeling for product design 1.3.4 Preparing models for 3D printing 1.3.5 Exporting to slicers 1.3.5.1 Converting objects to meshes 1.3.5.2 Using Slic3r 1.3.5.3 2 Using the Cura addon 1.3.5.4 Generating G-code 1.3.5.5 Generating 2D drawings 1.3.6 BIM modeling 1.3.7 Using spreadsheets 1.3.8 Reading properties 1.3.8.1 Writing properties 1.3.8.2 Creating FEM analyses 1.3.9 Creating renderings 1.3.10 Python scripting 1.4 A gentle introduction 1.4.1 Writing Python code 1.4.1.1 Manipulating FreeCAD objects 1.4.1.2 Vectors and Placements 1.4.1.3 Creating and manipulating geometry 1.4.2 Creating parametric objects 1.4.3 Creating interface tools 1.4.4 The community 1.5 3 Introduction A FreeCAD manual Note: The manual has been moved to the official FreeCAD wiki which is now its new home. -
Downloading Material Is Agreeing to Abide by the Terms of the Repository Licence
Cronfa - Swansea University Open Access Repository _____________________________________________________________ This is an author produced version of a paper published in : Software—Practice & Experience Cronfa URL for this paper: http://cronfa.swan.ac.uk/Record/cronfa158 _____________________________________________________________ Paper: Laramee, R. (2008). Comparing and evaluating computer graphics and visualization software. Software—Practice & Experience, 38(7), 735-760. http://dx.doi.org/10.1002/spe.v38:7 _____________________________________________________________ This article is brought to you by Swansea University. Any person downloading material is agreeing to abide by the terms of the repository licence. Authors are personally responsible for adhering to publisher restrictions or conditions. When uploading content they are required to comply with their publisher agreement and the SHERPA RoMEO database to judge whether or not it is copyright safe to add this version of the paper to this repository. http://www.swansea.ac.uk/iss/researchsupport/cronfa-support/ SOFTWARE—PRACTICE AND EXPERIENCE Softw. Pract. Exper. 2000; 00:1–7 Prepared using speauth.cls [Version: 2002/09/23 v2.2] Comparing and Evaluating Computer Graphics and Visualization Software Robert S. Laramee∗,† The Visual and Interactive Computing Group, Department of Computer Science, Swansea University, Swansea SA2 8PP, Wales, UK SUMMARY When starting a new computer graphics or visualization software project, students, researchers, and businesses alike must decide whether or not to start from scratch or with third party software. Since computer graphics and visualization applications are typically quite large, developers often build upon existing software libraries in order to take advantage of the tens of thousands of hours worth of development and testing already invested. Thus developers and managers must face the decision of which library to build on.