Success Stories: AWV, Tecnos, ADEM

AWV

Zurich based AVW Informatik AG company has successfully incorporated LEDAS LGS 2D and LGS 3D geometric solvers into its ClassCAD product. ClassCAD is not a typical CAD system, rather it works as integrated environment to build end-user applications. ClassCAD provides object-oriented environment for parts and assemblies modeling. It includes an integrated programming language for tasks automation within a CAD application, standalone version with visualization based on the VTK toolkit, and 3D operation based in a 3D solid kernel. ClassCAD models can be converted into feature models of other CAD systems and loaded with the plug-in version into other CAD systems. Similarly, scanning a feature model of a high-end CAD system and converting it into a ClassCAD base model is also possible.

ClassCAD is software implemented with an easy computer language applications and provides ability to create parametric models can be defined. The applications are executable on different systems CAD and geometry cores. With this tool a tool generator which can generate the graphics on the basis of parameter tables and predefined functional models was written. The data from the catalogues are offered to the customer by different manufacturers, so that he can generate these models in different formats directly. In addition, he has to change the possibility these models parametric. The models can be assembled to complete tools.

http://awf.ntb.ch/4518.html

Tecnos

Tecnos, an Italian CNC company located in Rimini is incorporating LGS into its Masterwork CAM application, first time presented at the LIGNA+ exhibition at Deutsche Messe in Hannover, Germany. Masterwork (illustrated by the screen-shot below) integrates the LGS geometric constraints solver into a completely new project which is developed using OpenCASCADE as the basic geometry kernel. “The fact that you have already developed a sort of integrator is an advantage for us” – says Marco Dell'Eugenio, Tecnos project leading developer. Masterwork provides combination of 2D and 3D CAM functionality as well as multi-axis CNC code generation.

LGS 2D/3D provides an affordable solution for strong variational and constraint-based functionality. Through the scalable architecture of LGS, variational and parametric techniques become available in a wide range of the geometry modeling products in particular in CAM, where there’s strong need to maintain offset curves, tangency and perpendicularity of tool axis and detail surface, work with inverse kinematics and solve many other non-trivial geometry problems.

www.tecnosga.it

ADEM

Due 2006 ADEM-Assembly has been significantly improved, using LGS 3D core functionality. ADEM Assembly purpose is to simplify creation hierarchical 3D assemblies. Assembly design can be performed in two manners: from “bottom to top”, by creation each part separately and then get them together or opposite from top to bottom, when you create assembly skeleton first and then design each part in details according assembly requirements. There are two parts of the system – parts designer and assemblies manager. The last one greatly benefits by incorporating 3D geometry constraints solver.

ADEM Assembly manager

Assembly manager allows to perform design in two ways from-top-to-bottom and from-bottom-to top. In both cases engineer is setting constraints and parameters, which define interrelationship between parts and their geometry elements. ADEM Assembly allows to move, mirror and rotate assembly components either with calculating defined relations or without them. While placement of free element is changed others, associated with it are modified automatically by system

There are eight main types of constraints, which can be set in ADEM Assembly.

	Coincidence. Engineer can define coincidence either for faces or for edges.
	Parallelism. This constraint also can be associated for faces and edges of 3D models.
	Perpendicularity. In the same way – this condition can be set for any edges and faces of 3D model.
	Concentricity. This specific but rather typical condition can be set either for cylindrical faces or for round edges (circles and arcs).
	Tangency.
	Distance defining the direct distance between edges and faces.
	Angle between faces and edges.
	Insertion. This is complex association, defining simultaneously Concentricity and Distance between elements.

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