Ledas

Ledas (6)

Menhirs NV, the parent company of Bricsys NV, announced today that it has acquired the intellectual property rights for several flagship software products from LEDAS. The acquired IP consists of the source code to LGS 2D, LGS 3D, Driving Dimensions, RhinoWorks, and other programs used by the computer-aided design industry.

The acquisition reinforces the position of Bricsys in the mechanical computer-aided design (MCAD) market. As a result of the acquisition, Bricsys and its team of third-party developers will easily build more MCAD applications on top of the Bricscad platform. The technology developed by LEDAS permits the development of advanced applications in the areas of direct modeling, assembly design, and related functions.

Parametric Modeling and Direct Editing in Bricscad V12


Since its founding in 1999, LEDAS has become been a leading provider of constraint-based design tools, as well as component technology and software development services for the CAD, CAM, CAE, and PDM markets. Its line of Driving Dimensions products revolutionized the field of direct modeling by bringing constraint-based parametric design to popular, low-cost 3D modeling applications, such as SketchUp and Rhino.

The Driving Dimensions technology is original to LEDAS, and allows designers to edit many kinds of solid, surface, and wireframe models parametrically. It provides designers with full control over their design intent through the use of geometric and dimensional constraints. Parametrics and constraints increase the productivity of designers significantly as they make changes to designs. By adding the LEDAS technology to its portfolio, Bricsys continues on its track to growing its sales in the worldwide CAD market.

The first result of the technology acquisition is Bricscad V12, which will allow designers to enter the world of 3D parametric and direct modeling – without needing to leave the .dwg-based design environment with which they are familiar. In addition, Bricsys plans to offer APIs that allow application developers to raise their applications to the next level of sophistication.

Management Changes

To efficiently manage the acquired IP, Bricsys is establishing a wholly owned subsidiary, "Bricsys Technologies Russia." Current LEDAS CEO Dmitry Ushakov will remain a member of the LEDAS Board of Directors, a entity separate from BTR; in addition, Mr Ushakov has accepted the position of CEO of BTR.

Bricsys has signed a service agreement with LEDAS, which continues as a service provider in the field of engineering software development. Under the agreement, Bricsys will hire several software developers from LEDAS who, under the management of Mr Ushakov, will integrate and continue the development of the acquired technology.

“By combining advanced technology from LEDAS, the excellent skills of its developers, and the expertise we have here at Bricsys, I am convinced that together we can make a significant impact on our industry,” said Erik De Keyser, CEO of Bricsys. “The technology acquisition we announced today enhances our vision for MCAD software, and expands our .dwg-based CAD offerings. We intend to use the new technology to extend our reach into the AEC and the civil engineering markets.”

“We successfully pushed our development to the edge of technological possibility, and so it's great to see how our technology will be applied to build new, highly competitive CAD solutions,” added David Levin, co-founder of LEDAS Ltd and Chairman of the Board. “This deal allows us to now focus instead on the most profitable direction of our business: providing high-quality engineering software development services for CAD/CAM/CAE/PDM vendors who use LEDAS as their long-term R&D center. We have the competence, the skillets, and a ready sources of talented young developers, and so we are intensively working at extending this side of our business as we welcome new customers.”

“For me, it is an honor to be invited by a company that has become a leader in the .dwg-based design market,” said Dmitry Ushakov, current CEO of LEDAS. “I am excited about applying our constraint-based technology on top of a powerful CAD platform. With the support of the talented, multi-national team of engineers and mathematicians at Bricsys, we will create advanced MCAD solutions.”

For more information, visit: www.ledas.com or www.bricsys.com

LEDAS Ltd today announced the availability of version 5.0 of LGS 3D, its powerful geometric constraint solver. As a core technology component of CAD/CAM/CAE software, LGS 3D is used to implement geometric, dimensional, and engineering constraints in applications involving assembly design, motion simulation, and direct modeling.

Version 5.0 improves on its performance, introduces several new functions requested by LEDAS customers, and enhances the quality of its solutions.

Improved Performance

The move-under-constraints function allows users to drag one or more geometric objects interactively, while LGS 3D solves the constraints dynamically at each intermediate step. This makes it easy for users to adjust their designs, and to explore the kinematics of complex mechanisms. The new algorithm for adaptive calculation of move-under-constraints in LGS 3D 5.0 speeds up this function by 100%, on average.

LGS 3D can deal with inconsistent problems, and with version 5.0 inconsistent models are processed 30% faster on average, thanks to minimizing of the number of iterations to solve.

Extended Functions

In some design contexts, users need to know whether a particular constraint is satisfied. In previous releases, the only way to do this was to run the LGS 3D solver procedure, which proved to be time-consuming for large models. Version 5.0 introduces new functions that very quickly check if one or all constraints are satisfied.

The tangency constraint between cylinders and tori now supports the orientation attribute. Version 5.0 of LGS 3D now automatically detects the orientation attribute for coincidence constraints between circles and tori.

The distance constraint between two spheres now supports user- and application-defined help points. This allows users to measure distances between different combinations of the spheres’ sides.

Enhanced Solution Quality

The scope of some problem decomposition and heuristic methods has been extended to support models with non-rigid objects and variables.

The DOF (degrees of freedom) analysis introduced with the previous version of LGS 3D has been improved in version 5.0. The number of spiraling DOFs is minimized whenever possible.

LEDAS developers also eliminated several bugs reported by customers.


To learn more about LGS 3D, visit the LEDAS web site at: www.ledas.com/products/lgs3d

Friday, 04 February 2011 10:22

LEDAS Appoints Dmitry Ushakov as New CEO

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LEDAS Ltd., the independent provider of constraint-based design tools, component technologies, and software development services for the CAD/CAM/CAE/PDM market, today announced the appointment of Dmitry Ushakov as its new chief executive officer. Previously the director of product management, Dr Ushakov replaces co-founder David Levin, who continues as chairman of the board to concentrate on expanding and optimizing the business of the LEDAS group of companies.

LEDAS Ltd. also announced the appointment of Alexey Ershov, previously the Director of R&D, as the new chief technology officer. In his new role, Dr Ershov will oversee all of LEDAS’ technologies, and will drive the technical direction of the company.

“LEDAS has the unique opportunity to become the #1 provider of intelligent direct modeling technology, which serves as the basis of the next generation of CAD programs,” said Dr Levin. “Our primary goal is to leverage our goodwill to strengthen our position in the CAD/CAM/CAE component technologies market, and to bring our innovative technologies to end users in partnership with the leading developers of engineering software. With their skill, experience, ideas, and enthusiasm, Dr Ushakov and Dr Ershov will drive the LEDAS business to new achievements.”

Dmitry Ushakov, 39, was hired by LEDAS in 1999 as a lead programmer, then became the chief technology officer and director of product management. He initiated and supervised the development of LGS, the LEDAS geometric constraint solver, which defined the LEDAS business model for successive years. Dr Ushakov was visionary in developing new variational direct modeling technology for the next generation of CAD, implemented as a series of Driving Dimensions plug-ins for Google SketchUp and McNeel Rhinoceros 3D modeling software.

Alexey Ershov, 32, also joined LEDAS in 1999 and then quickly progressed through the positions of software developer, manager, and finally director of research and development. He participated in many mathematical software projects, such as theoretical areas of sub-definite computations based on constraint propagation, and practical CAD problems, like part and assembly design, motion simulation, and direct modeling. For several years Dr Ershov has been one of the key developers and managers of science-intensive outsourcing projects for different CAD/CAM vendors.

At the same time, LEDAS made other appointments to its management team. See http://ledas.com/group/team for details.
About LEDAS

LEDAS Ltd. is a private, employee-owned software development company founded in 1999. It is based in Novosibirsk Scientific Centre, the Siberian Branch of the Russian Academy of Science. A world leader in constraint-based technologies, LEDAS provides constraint-based design tools, component technologies, and consulting services for the CAD/CAM/CAE/PDM market.

More information about LEDAS is available at www.ledas.com

LEDAS Ltd today announced the updated version 1.4 of its Driving Dimensions plug-in for Google SketchUp software, the easy-to-use toolset for parametric modification of history-free 3D models. The LEDAS development team modified the code of the Driving Dimensions plug-in to capitalize on several important changes made to Google SketchUp V8. One of the primary changes in SketchUp 8 is its migration to a new Ruby interpreter, version 1.8.6. (Due to the changes in the syntax of the programming language, SketchUp no longer interprets some Ruby programs created with previous versions.) The LEDAS development team carefully revised the source code of Driving Dimensions, migrating the Ruby code to the new version. Driving Dimensions v1.4 is now fully compatible with the new releases of Google SketchUp – both the free 8 and the Pro 8 – running on Windows XP/Vista/7 and Mac OS X 10.6

The behavior of SketchUp’s Push/Pull tool changed in version 8, which affected the inferred dimensions mechanism of Driving Dimensions. (The inferred dimensions mechanism automatically captures design intent, including when the Push/Pull tool is used, and then converts it into a set of driving dimensions that are placed on the new geometric entities.) Now the mechanism works correctly in both the new and previous versions of SketchUp.

“People seem very much interested in adding parametrics to their SketchUp V8 licenses,” reported Nicola Caraccia, co-founder and CEO of SIMIT, exclusive distributors of Google SketchUp and official reseller of LEDAS Driving Dimensions plug-ins in Italy. “I'm very excited by the great opening created by the new v8 launch, and I'm confident that Driving Dimensions for SketchUp has an excellent opportunity to become a best seller.”

Driving Dimensions plug-in v1.4 is compatible with Google SketchUp 8. It has been thoroughly tested on the 32-bit versions of Windows XP, Vista, and 7, and on Mac OS X 10.6.
Availability and Price

Commercial licenses of Driving Dimensions v1.4 for Google SketchUp may be purchased for US$145 (EUR 145 in Europe) from the Share-it! online store at www.DrivingDimensions.com/store/SketchUp. All customers who bought the licenses during last year can upgrade to v1.4 free of charge.

Free test drives of the Driving Dimension plug-in can be downloaded from www.DrivingDimensions.com/SketchUp, where visitors will also find detailed on-line help, written and video tutorials, a set of sample drawings, and testimonials from our customers. The free version is not intended for commercial use and limits users to 10 driving dimensions per model.
About Driving Dimensions and LGS 3D

Parametric design has never been so easy – even for beginners. Driving Dimensions for SketchUp is a plug-in that performs parametric modifications of 3D geometric models in a simple and intuitive way. With Driving Dimensions, users can modify any dimension (lengths, distances, radii, and angles) in any SketchUp model with just a single click. All driving dimensions applied to one model are satisfied simultaneously.

The simplicity of the user interface of Driving Dimensions plug-in hides a strong set of mathematical algorithms in the field of geometric constraint solving. Our Driving Dimensions portfolio of end-user applications is available at www.DrivingDimensions.com.

Driving Dimensions v1.4 is based on LGS 3D, a geometric constraint solver integrated into a dozen commercial CAD packages. LEDAS has developed the technology since 2001. It is available for licensing to all CAD developers. More information about LGS 3D can be found at www.ledas.com/products/lgs3d.
About LEDAS

LEDAS Ltd. is an independent software development company founded in 1999. It is based in Novosibirsk Scientific Centre in Akademgorodok, the Siberian Branch of the Russian Academy of Science. A leader in constraint-based technologies, LEDAS is a well-known provider of computational software components for PLM (Product Lifecycle Management) solutions: geometric constraint solvers for CAD/CAM/CAE, optimization engines for project management, work scheduling and meeting planning as well as interval technologies for knowledge-based engineering and collaborative design. The company also provides services for PLM markets: software development, consulting, reselling as well as education and training.

More information about LEDAS is available at www.ledas.com

Press Contact
LEDAS Marketing
phone: +7 383 3356 504 / fax: +7 383 3356 256
e-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
www.ledas.com

Driving Dimensions and LGS are trademarks of LEDAS Ltd. Any other trademarks are the property of their respective owners.

Cimatron Limited (Nasdaq: CIMT), a leading provider of integrated CAD/CAM solutions for mold, tool and die makers as well as manufacturers of discrete parts, and LEDAS Ltd, the independent provider of constraint-based design tools, component technologies, and software development services for the CAD/CAM/CAE/PDM market, today announced a new partnership.

Cimatron has licensed from LEDAS the geometric constraint solver LGS 3D and intends to use it within CimatronE software as a part of a new industrial motion simulation solution.

"We worked very closely with LEDAS to create a simulation product that is seamlessly integrated into CimatronE and that provides the right response for our customers," said Roy Sterenthal, Cimatron’s Vice President of Research & Development. "We appreciate LEDAS’s hard work and effort throughout the development of the product, and we are proud of the results that we have achieved."

Cimatron and LEDAS worked together for about one year to develop the new industrial motion simulation solution based on the LEDAS geometric constraint solver LGS 3D and a collision detection module provided by Cimatron. The combined technologies will allow CimatronE users to test the efficacy of their tool design, isolating problems at an early stage to achieve shorter overall design times.

"We have created a product that simulates motion in assemblies and also includes comprehensive collision detection, to cater to the specific needs of CimatronE toolmakers," said Alexey Ershov, Director, Research & Development, LEDAS Ltd. "Testing of the project, demonstrated on industrial scenarios provided by Cimatron, verifies the robustness of our solver for industrial CAD/CAM applications."

"We are very proud that our product has been chosen by Cimatron, one of the top 10 CAM software providers in the world," said David Levin, CEO and founder, LEDAS Ltd. "This demonstrates the high level of value that we offer to software developers, from start-up companies to world market leaders."

The new motion simulator will be released as part of CimatronE 10.0.
About Cimatron

With over 25 years of experience and more than 40,000 installations worldwide, Cimatron is a leading provider of integrated, CAD/CAM solutions for mold, tool and die makers as well as manufacturers of discrete parts. Cimatron is committed to providing comprehensive, cost-effective solutions that streamline manufacturing cycles, enable collaboration with outside vendors, and ultimately shorten product delivery time.

The Cimatron product line includes the CimatronE and GibbsCAM brands with solutions for mold design, die design, electrodes design, 2.5 to 5 axes milling, wire EDM, turn, Mill-turn, rotary milling, multi-task machining, and tombstone machining. Cimatron's subsidiaries and extensive distribution network serve and support customers in the automotive, aerospace, medical, consumer plastics, electronics, and other industries in over 40 countries worldwide.

Cimatron's shares are publicly traded on the NASDAQ exchange under the symbol CIMT. For more information, please visit the Company's web site at: http://www.cimatron.com
About LEDAS

LEDAS Ltd. is an independent software development company founded in 1999; it is based in Novosibirsk Scientific Centre (Akademgorodok), Siberian Branch of the Russian Academy of Science. A leader in constraint-based technologies, LEDAS is a well-known provider of computational software components for PLM (Product Lifecycle Management) solutions: geometric constraint solvers for CAD/CAM/CAE, optimization engines for Project Management, Work Scheduling and Meeting Planning, as well as interval technologies for Knowledge-Based Engineering and Collaborative Design. The company also provides services for PLM market: software development, consulting, reselling as well as education and training. More information about LEDAS is available at http://www.ledas.com.
About LGS Software

Since the first commercial release in 2004, the LGS 2D/3D software components have been licensed by a dozen CAD/CAM/CAE vendors, who have embedded it into their applications successfully.

The LGS 2D and 3D geometric constraint solvers are used as parametric engines for sketching and drawing, 3D direct modeling, assembly design, motion simulation, and other geometric modeling applications. LGS 2D and 3D are cross-platform software packages running on 32- and 64-bit versions of Windows, Linux, Mac OS X, *BSD, AIX, HP-UX, and other operating systems. Coded in C++, LGS 2D and 3D have a C-style API for easy integration into a broad range of software applications using a variety of wrappers, such as .NET, Java, and C++.

LGS 2D/3D supports the creation and modification of geometric models by means of explicit or implicit constraints. Geometric objects include points, lines, circles, planes, cylinders, spheres, cones, tori, NURBS, application-defined parametric curves, surfaces, and swept surfaces. Objects can be fixed in the absolute coordinate system or relative to one other. Supported geometric constraints include logical constraints between geometric entities (coincidence, parallelism, tangency, and so on) and dimensional constraints that specify the required values for distances, angles, or radii. LGS 2D/3D moves and rotates objects to positions that satisfy all constraints, yet minimizes transformations from initial configurations.

Other LGS functions implement advanced features of CAD/CAM/CAE systems, such as diagnostics of over- and under-defined parts of models, engineering variables and equations, help points, and tolerance management.

To learn more about LGS 2D/3D, visit the LEDAS web site at www.ledas.com/products/lgs3d

This press release includes forward looking statements, within the meaning of the Private Securities Litigation Reform Act of 1995, which are subject to risk and uncertainties that could cause actual results to differ materially from those anticipated. Such statements may relate to the Company’s plans, objectives and expected financial and operating results. The words "may," "could," "would," “will,” "believe," "anticipate," "estimate," "expect," "intend," "plan," and similar expressions or variations thereof are intended to identify forward-looking statements. Investors are cautioned that any such forward-looking statements are not guarantees of future performance and involve risks and uncertainties, many of which are beyond the Company’s ability to control. The risks and uncertainties that may affect forward looking statements include, but are not limited to: currency fluctuations, global economic and political conditions, marketing demand for Cimatron products and services, long sales cycles, new product development, assimilating future acquisitions, maintaining relationships with customers and partners, and increased competition. For more details about the risks and uncertainties related to the Company's business, refer to the Company’s filings with the Securities and Exchange Commission. The Company cannot assess the impact of or the extent to which any single factor or risk, or combination of them, may cause. Cimatron undertakes no obligation to publicly update or revise any forward looking statements, whether as a result of new information, future events or otherwise.
For More Information Contact:

Idit Pass Lagziel
Marketing Manager
Cimatron Ltd.
Phone: +972 3 5312098
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Ilan Erez
Chief Financial Officer
Cimatron Ltd.
Phone: +972 3 531 2121
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LEDAS Marketing Department
Phone: +7 383 3356 504
Fax: +7 383 3356 256
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LEDAS Ltd today announced the release of version 4.0 of LGS 3D, its powerful geometric constraint solver. This is the core technology for parametric design software, allowing users to express their design intent in 3D parts and assemblies through geometric and dimensional constraints.

Version 4.0 introduces important new functions that customers will find useful for assembly design and direct modeling. It also significantly improves reliability and performance.
New Features in LGS 3D 4.0

LGS 3D v4 introduces (infinite) cone and torus objects. They can be fixed, or be linked with other objects with different constraints: coincidence, tangency, parallelism, perpendicularity, and angular dimensions. In the context of assembly designs, cone and torus objects are used to model spatial and kinematic relationships in mechanisms, such as bearings and variators. In direct modeling applications, they can represent fillets and chamfers, and they adjust their form to satisfy constraints. For example, cones can change their angles and tori change any of their radii. In addition to non-rigid cylindrical and spherical surfaces introduced in previous versions of LGS 3D, cone and tori now allow users to models many kinds of parametrized mechanical parts, such as brackets, bearings, and hinges.

An important function introduced with LGS 3D v4 computes the degrees of freedom (DOF) of parts in mechanisms. Any rigid set in LGS 3D can have up to three translational and three rotational DOFs. When rigid sets are linked by constraints to other fixed objects, the appropriate DOFs are eliminated automatically. A new function returns the number of remaining DOFs for a particular rigid set. Also returned is geometric information, such as directions and axes. LGS-based applications can now represent this data to the end user, a feature that has been highly requested for kinematic analysis.

LGS 3D v4 supports tangency constraints with parametric curves and surfaces that represent non-canonic objects. These features are used to express complex kinematic relations in advanced mechanisms.

Also new in LGS 3D is its ability to deform canonic curves and surfaces when they are moved under constraints. This applies specifically to circles, cylinders, spheres, cones and tori. (In previous versions, the deformation was limited to static constraint solving.) Version 4 also generates the correct diagnostics for models with these non-rigid objects.

A new LGS 3D function returns information about loops in over-defined constraints. (In previous versions, users were only alerted to the condition and were provided no additional information.) Version 4 now allows constraint relaxation to be applied independently of each over-defined loop. This means that it is now faster for users to make their models consistent.
Reliability and Performance

Version 4.0 of LGS 3D contains significant advances in reliability and performance. A new analysis on inconsistent models improves performance three-fold. The technical and algorithmic optimization on large models with thousands constraints increases the performance of LGS 3D by 10-25%.

LGS 3D v4 also contains enhancements to its API that provide better context management and more detailed journaling.

“Version 4.0 really is a ‘major’ release,” explained Alexey Ershov, Director of Research and Development at LEDAS. “We are not only introducing important extensions, but for the first time are providing full solutions to both assembly and part modeling.”
About LGS Software

Since the first commercial release in 2004, LGS 2D and 3D software components have been licensed by a dozen CAD/CAM/CAE vendors, who have embedded the components into their applications successfully.

The 2D and 3D geometric constraint solvers are used as parametric engines for 2D sketching and drawing, 3D direct modeling, assembly design, motion analysis, and other applications. LGS 2D and 3D are cross-platform software packages running on 32- and 64-bit versions of Windows, Linux, Mac OS X, *BSD, AIX, HP-UX, and other operating systems. Both solvers have a C-style API for easy integration into a broad range of software applications using a variety of wrappers, such as .NET, Java, and C++.

LGS 2D/3D supports the creation and modification of geometric models through explicit and implicit constraints. Geometric objects that can be constrained include points, lines, circles, ellipses, planes, cylinders, spheres, cones, tori, NURBS, application-defined parametric curves, and surfaces. Objects can be fixed in the absolute coordinate system or relative to each other. Supported constraints include geometric relations between objects (coincidence, parallelism, tangency, and so on) and dimensions that specify the required values for distances, angles, and radii. LGS 2D/3D moves and rotates objects to positions that satisfy all constraints, yet minimizes transformations from initial configurations.

Other LGS functions implement advanced features of CAD/CAM/CAE systems, such as diagnostics of over- and under-defined parts of models, engineering variables and equations, help points, and tolerance management.

Available as free downloads from the LEDAS web site are “Lege’n’d 2D/3D” example applications. These consist of sample models representing different kinds of 2D sketches and 3D assemblies. The applications can be used to test the functionality, robustness, and performance of LGS 2D/3D. They were created with the Open CASCADE open-source application framework; the source code is available to all licensees.

To learn more about LGS 2D/3D, visit the LEDAS Web site at www.ledas.com/products/lgs3d.
About LEDAS

LEDAS Ltd. is an independent software development company founded in 1999. It is based in Novosibirsk Scientific Centre in Akademgorodok, the Siberian Branch of the Russian Academy of Science. A leader in constraint-based technologies, LEDAS is a well-known provider of computational software components for PLM (Product Lifecycle Management) solutions: geometric constraint solvers for CAD/CAM/CAE, optimization engines for project management, work scheduling and meeting planning as well as interval technologies for knowledge-based engineering and collaborative design. The company also provides services for PLM markets: software development, consulting, reselling as well as education and training.

More information about LEDAS is available at www.ledas.com.
Press Contact
LEDAS Marketing
phone: +7 383 3356 504 / fax: +7 383 3356 256
e-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
www.ledas.com

LGS is a trademark of LEDAS Ltd. Any other trademarks are the property of their respective owners.

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