Free CAD-CAM CNC software for mechanical engineering

In modern CNC systems, end-to-end component design is highly automated using CAD CAM programs. The programs produce a computer file that is interpreted to extract the commands needed to operate a particular machine, and then loaded into the CNC machines for production. Since any particular component might require the use of a number of different tools - drills, saws, etc. - modern machines often combine multiple tools into a single "cell". In other cases, a number of different machines are used with an external controller and human or robotic operators that move the component from machine to machine. In either case the complex series of steps needed to produce any part is highly automated and produces a part that closely matches the original CAD design.

Free CAD-CAM CNC software for mechanical engineering:

G-Simple This CNC program is completely free simple yet powerful software for 3-axis mills, use it to create G-codes for drilling, milling, engraving, tapping & pocketing.
Download:
http://www.polaris.com.gr/gsimple/download.html

GCAM is an free Open Source software for 3-Axis CNC mills. Simple interface for making holes, and sketches, which after extruded, provide the cutting paths for the selected end mill. GCAM also supports RS274X (Gerber) and Excellon drill files for circuit board milling..
Download:
http://gcam.js.cx/index.php/Main_Page

30-day trial versions:
http://www.softsquad.com/downloads.htm

Cut2d by Vectric
Cut2D converts CAD DXF and graphics designs to GCode / CNC Toolpaths for machining high quality parts and components, and users say it's easy to use. Price: $149 .
http://www.vectric.com/WebSite/Vectric/products/download_products.htm

We'll be adding more free cnc software sources as we fin them.

Human-Product Interactions CAD CAM CAE Software

Two tools, Pro/ENGINEER Manikin Extension helps designers see and analyze interactions between people, products, and work stations. At the other hand: Using the Pro/ENGINEER Manikin Analysis Extension, designers can simulate and analyze human-product interactions such as pushing and pulling.

NEEDHAM, MA. - November 11, 2008 -PTC® (Nasdaq: PMTC), The Product Development Company®, announced the launch of Pro/ENGINEER® ManikinTM, a 3D digital human modeling solution that enables design teams to add a digital human model to a CAD product model to simulate and communicate human-product interactions. The Two new modules, Pro/ENGINEER Manikin Extension and Pro/ENGINEER Manikin Analysis Extension, provide ergonomic and human factors analysis capabilities for customers of Pro/ENGINEER, PTC's parametric 3D CAD/CAM/CAE software and a key component of the PTC® Product Development System. By accelerating detailed design processes and reducing the need for expensive physical prototypes, Pro/ENGINEER Manikin helps customers create innovative, winning products with faster time-to-market, improved quality and reduced costs.
"PTC's new manikin software is notable for its tight integration with Pro/ENGINEER. Pro/ENGINEER Manikin brings digital human visualization and simulation to the engineer's desktop within the CAD user interface and without the need for the engineer to be a human factors expert," said John MacKrell, senior analyst, CIMdata. "This is a very impressive first step for PTC for supporting a human-centric design approach. Pro/ENGINEER Manikin will enable customers to better optimize their products for the people who will use, manufacture and maintain them"
Pro/ENGINEER Manikin, the industry's first ISO standards-based solution, provides comprehensive, easy-to-use, capabilities to simulate and communicate human-product interactions for a global population. Highlights of Pro/ENGINEER Manikin Extension and Pro/ENGINEER Manikin Analysis Extension include:

Pro/ENGINEER Manikin Extension
Quickly insert, customize, and manipulate accurate, standards-based 3D human models.

Create human reach envelopes and vision cones to understand what limitations may exist in a design.

Gain a first-person perspective of a product and "see" what the manikin can "see".

Accelerate design by leveraging libraries of global populations and manikin postures.

Pro/ENGINEER Manikin Analysis Extension
Simulate, communicate and optimize manual handling tasks by validating them against published standards and guidelines.

Ensure conformance with health and safety guidelines and ergonomic standards. Includes standard algorithms for analyzing workplace tasks including lifting and lowering (NIOSH 81/91), pulling and pushing (Snook), energy expenditure (GARG), and posture (RULA).

Analyze designs faster with simplified workflows to posture the manikin and reuse saved postures and analysis settings.

Leverage advanced reporting capabilities of analysis results earlier in the development process to deliver products designed and optimized for humans in less time.

Additionally, beginning in December 2008, basic manikin capabilities that enable users to insert a pre-defined manikin into a CAD model and easily manipulate the posture to gain an understanding of how a human would fit or interact with a proposed design will be included in all Pro/ENGINEER packages at no additional charge for those customers on the latest maintenance release of Pro/ENGINEER Wildfire 4.0.
The importance of this product is that early lifecycle visualization, simulation and communication reduces development costs, shortens time to market.

More info at:
http://www.ptc.com

CNC CAD CAM software

CNC software is probably cnc's most important tool or resource.
Just was released Mastercam’s Maintenance that delivers enhanced toolpath control
CNC Software releasing the second Maintenance release for Mastercam X2 and CNC Software announces the release of MR2 Mastercam X2’s Maintenance Release. This release introduces significant new capabilities, including new and improved toolpaths for high speed machining, multiaxis enhancements, and much more.

Multiaxis Enhancements
Some powerful enhancements are included in the advanced multiaxis toolpaths. For example, allows the toolpath motion to be optimized by completing one region before moving on to another, and expanded entry and exit macros that greatly simplify contacting and leaving the material.

Peel Milling Toolpath
Delivers powerful high speed cutting to 2D projects, this new toolpath moves the tool in and “peels” away material, layer by layer.

Operations Manager
The Ccam Operations Manager panel can float to a different area of the graphics window or to a separate screen when you are working with dual monitors.

Creating a Boundary Function
The Create Boundary function greatly expands cad Mastercam’s toolpath boundary creation, restricting the toolpath to highly specific areas. It can calculate the boundary using shallow areas, theoretical rest areas, cutter contact areas, and enhanced silhouette boundary controls and more.

Swept Surfaces
New techniques and options have been added more sweep orientation control options, greater flexibility in the use of multiple along and cross curves.

MR2 Enhancements
You can now define horizontal block drill stations in the machine definition rather than using an aggregate, set up different views for each station.
Common edge optimization in nesting is now supported. Nesting toolpaths so that they have common edges saves both time and money.
At the Level Manager can now be moved to a second monitor and left open. You can also hide all geometry except what is on the main level, or display a range of levels in the Level Manager grid.
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