With added processing power of the iPAD2, the device can now start using more complex engineering applications. The original iPAD could use simple 2D drawing application, but the iPAD2 can render 3D drawing and dense 3d drawings. Better simulations have come out lately to demonstrate how certain tasks.

Cad

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AutoCAD WS
View, edit, and share your DWG™ files with anyone, anywhere. AutoCAD WS mobile app enables you to work with AutoCAD drawings directly on your iPad, iPhone, or iPod touch.
Accurately annotate and revise drawings while you are on location in the field, in meetings, or out of the office. Work with local versions of your designs when you don’t have an Internet connection, and easily open DWG and DXF™ files you receive as email attachments directly on your device.
Experience the freedom of taking your designs with you—wherever you go.

✓View
• Open DWG drawings uploaded to your free* AutoCAD WS online workspace
• Work offline, saving a local version to your device for times when you don’t have an online connection
• Upload files sent as an email attachment directly to your AutoCAD WS account
• See all aspects of your DWG file, including external references, layers, and image underlays
• Use Multi-Touch zoom and pan to more easily navigate very large drawings

✓Edit
• Tap objects to select, then move, rotate, and scale
• Draw or edit shapes with accuracy using Snap and Ortho modes
• Add and edit text annotations directly on your device; no need for paper mark-ups
• Validate distance measurements in the drawing while you are onsite at the actual location
• Save your edits to your AutoCAD WS online workspace, so your drawings stay up to date

✓Share
• Share designs with others directly from your device
• Work with other people on the same DWG file simultaneously
• View edits to drawings in real time: AutoCAD WS immediately captures changes made by you and others in your online workspace.

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Free

Inventor Publisher Mobile Viewer



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Mod3D



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iCAD Free




Home 3D for iPAD
Home 3D is the ultimate mobile tool for architects, home remodeling enthusiasts, interior designers and design hobbyists. Build your dream home in seconds, and take a stunning 3D virtual tour inside it!

Home 3D is built around three simple steps:
1. Layout - Add and position rooms in your floor plan.
2. Interior - Place furniture, fixtures and appliances in each of the rooms.
3. 3D - Take a virtual tour of your dream home and set the materials for the floors and walls.

This app does include in-app purchases for upgrades.



Home Design 3D By LiveCad - For iPhone
In this version, you can test the functionalities of the application and explore its possibilities.
This version can be used without limit. But be careful, projects cannot be saved in this version. However, projects created can be saved by downloading the full version directly from this version.]


Create, Layout, Design, Visit

Have you ever wished to change the déco, the color or rearrange your home ? Are you about to move into a new apartment ?
Home Design 3D is the perfect app to plan and design the home of your dreams with simplicity!
With high definition graphics and textures, a higher level of detail, and light and shadow, 3D rendering of your home is more beautiful than ever!

Remodel your home in the blink of an eye and a few slides of your finger!
♦ Easy to use and intuitive interface
♦ Extremely fast performances in both 2D and 3D
♦ Retina Display (High resolution objects and textures)
♦ Drag and drop any object or piece of furniture (windows, doors, tables, desks, carpeting, etc...)
♦ More than 200 different items and furniture available
♦ Select the dimensions of every element of the house (walls, objects, furniture ...)
♦ Visit your home in 3D with 2 navigation modes (First Person view and Observer mode)
♦ Save and edit all your projects easily
♦ Projects are saved in a format compatible with the PC version of the software architecture 3D 3.2 so that you can complete them in your PC
♦ No internet connection
♦ Illustrated tutorial available

Free
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Home Design HD By LiveCad - For iPAD
Create, Layout, Design and Visit the home of your dreams!
Have you ever wished to change the déco, the color or rearrange your home ? Are you about to move into a new apartment ?
Home Design 3D is the perfect app to plan and design the home of your dreams with simplicity!
Video : http://dai.ly/ga9UTB

Remodel your home in the blink of an eye and a few slides of your finger!

Perform your 2D drawing with ease, by dragging your finger across the screen. Choose from a vast catalogue of more than 150 objects ranging from doors, windows and furniture and move them wherever you want. View a 3D rendering of your home and design it as you wish - color the walls, change the floor and ceiling.
Enjoy all the expertise and quality of LiveCad technology (16/20 PC Magazine) in this application specially developed for the iPad:

$5.99

ConstructwareField
The Constructware® Field mobile app from Autodesk® gives Constructware users the ability to securely view, download, and upload Architecture, Engineering and Construction (AEC) project documents and designs from anywhere: field, site hut, or office. Constructware users can access File Director content to view DWF® files, standard office documents, and images, and even specify files to be available locally when off-network. Additionally, in devices with built-in cameras, Constructware users can take and upload site photos directly to the Constructware cloud for later review and linking to project workflows.

If you are a Constructware user, you can use the Constructware Field mobile app to:

✓Securely access your project information
•Secure, authenticated access to your project documents in the Constructware cloud.
•Fully supports project and folder-level access restrictions.
•Easily and securely access multiple Constructware projects and sites from your iPad or iPhone.

✓Review project designs and documents from anywhere
•View DWF® files when you are away from the office or at the jobsite.
•Download AutoCAD® DWG® and DXF™ files from Constructware and open with AutoCAD WS for viewing.
•View all your project files, including photos, images, and PDF, Word, Excel, and PowerPoint documents.

✓Collaborate with your AEC project team
•Capture, annotate, and share project photos and images with your project team.
•Open and edit files managed on Constructware directly from other productivity apps installed on your iPad and iPhone.

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Free

Buzzsaw
If you are a Buzzsaw user, you can use the Buzzsaw Mobile app to:

Securely access your AEC project information
· Secure, authenticated access to your project data in the Buzzsaw cloud.
· Fully supports all 8 Buzzsaw permission levels for your AEC projects.
· Easily and securely access multiple Buzzsaw projects and sites from your iPad or iPhone.

Review project designs and documents from anywhere
· View DWF® files when you are away from the office or at the jobsite.
· Download AutoCAD® DWG® and DXF™ files from Buzzsaw and open with AutoCAD WS for viewing.
· View all your project files, including photos, images, and PDF, Word, Excel, and PowerPoint documents.

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Free (requires Buzzsaw account)


App/Multimedia Design

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UIDesigner




Purple Moon
With Purple Moon you can preview animations made with Purple directly on the iPad without effort. Purple Moon automatically discovers your running Purple application on your network and connects to Purple.

Purple is available on the Mac AppStore.

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Mechanical

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Circuits

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iCircuit


$9.99

Circuit Lab HD
Circuit Lab HD is an electronic circuit analysis tool based on the modified node analysis method.

Three kind of analysis may be conducted:
  • DC: linear and non linear circuits with continuous voltage and current sources;
  • AC: linear circuits in steady state, sinusoidal voltage and current sources;
  • Transient: linear and non linear circuits, with sinusoidal and pulse voltage sources.

User can graphically draw the circuit and then the circuit can be analyzed.

Circuit may be controlled by means of the following gestures:
  • Drag: to move the circuit into the desired position
  • Tap on a component: to modify the component's parameters
  • Pinch: to zoom in and out
  • Double finger double Tap: to reset position and zoom level to the original values

Tapping DC button, user gets voltage at each circuit's node.

Tapping AC button, user gets voltage phasors at each circuit node.

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$6.99
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Building Parallel Circuits
Using 3D graphics and 2D electronic symbols, you will build simple parallel circuits by using wires, batteries, switches, and light bulbs. By constructing their own closed circuit with two light bulbs, you will develop a deeper understanding of series and parallel circuits and discover that electricity follows the path of least resistance.

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$.99
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Building Serial Circuit
Using 3D graphics and 2D electronic symbols, you will assemble different types of series circuits using wires, switches, batteries, and light bulbs. In order to better understand the difference between a series and a parallel circuit, build a circuit that illuminates two bulbs and observe what happens when one light bulb is removed.


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$.99

ResistorCalc HD




nsquared circuits
Learn all about the magic of electrical circuits with this clever app that gives real time current, voltage and resistance readings.

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$4.99





Reference


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WolframAlpha




Learn Solidworks 2011 Quickly and Easily
Get hands-on with CAD modelling in Learning Solidworks 2011 from Infinite Skills. This training course contains over 11 hours of high-quality, instructor led content.

- Universal App! Learn on your iPad, iPhone and iPod Touch
- Built specifically for iOS devices with AirPlay enabled
- Over 11 hours of video content
- 96 individual lessons
- Professionally edited and produced
- Lessons presented by Solidworks expert Alex Ruiz
- FREE working files to ensure successful learning

Features:

  • AirPlay enabled allowing you to view your videos on your television.
  • Includes working files you can download to your computer and use in SolidWorks as you watch the training on your iOS device - freeing up your monitor space for the software.
  • 96 individual tutorial videos broken into comprehensive chapters and movies - 11.5 hours in total.
  • Go from video to video in order, or skip around; you're in complete control.
  • 1X, 2X and 4X speeds allow you to learn at your best pace.
  • Resume play lets you stop your training at anytime and pick it back up right where you left off, minimizing lost time skimming through videos
  • Streaming video - allows you to keep your iOS device hard drive free for your own media and data.

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$9.99

Circuit Sidekick


$2.99

OhmPad
OhmPad is a simple calculator for Ohm's Law on iPad. If you are an electronics hobbyist or an engineer, you will recognize this Swiss Army Knife of formulae.

Features -----

OhmPad understands SI prefixes and can adjust your numbers accordingly! Just tap the control beneath the textbox to set the displayed quantity in units from Tera to pico

10-key style numeric keypad entry.
Don't fumble trying to enter numbers on a qwerty keyboard anymore! The familiar layout is very close to a standard numeric keypad on a mac , pc or calculator.

$.99

Ohmulator
Makes Ohm's Law simple!
Ohmulator is a simple, yet robust, electric circuit calculator that enables you to quickly and easily find the unknown variables of a circuit.

Ohmulator allows you to easily adjust unit types on the fly (eg. mAmps, Amps, kAmps), which means no prior conversion!!!

Enter two known variables (from: I = Current, R = Resistance, V = Voltage, P = Power), set unit type, and Ohmulator will calculate and return the previously unknown values.

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$.99