By Hans Grabowski, Reiner Anderl, Michael J. Pratt
Reiner Anderl The complicated Modelling a part of the CAD*I undertaking aimed toward the improvement of a brand new iteration of modelling options as a uncomplicated performance of destiny CAD/CAM platforms. The technique and ideas for complicated modelling suggestions, their availability within the communique interface of a CAD/CAM process and their effect on inner interfaces within the software program structure of a CAD/CAM method are primary result of complex modelling paintings. those effects shape the foundation for the advance of a brand new iteration of CAD/CAM platforms that are known as product modelling platforms. CAD/CAM structures this present day in most cases help the geometric description of a technical half or its description as a technical drawing. complex geometric modelling features take care of parametric layout services embedded into CAD/CAM platforms. even if, improvement thoughts for destiny CAD/CAM structures are directed towards the subsequent: 1. the improvement of product modelling structures and a couple of. the improvement of built-in structures in keeping with CAD, CAP (Computer Aided Planning), CAM and different CIM (Computer built-in Manu facturing) functionalities.
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Extra info for Advanced Modelling for CAD/CAM Systems
Any user input has additional semantics depending on the current state of model. It must therefore be interpreted in connection with this semantic context_ 4. Geometric-Associative Modelling 39 3. g. geometric entities or symbols) that are recognized should be stored in the model so as to be available for further analysis. 3-1). The individual modules of the HIS perform the tasks described in the following chapters. ~ L-~ ;' ~ ... ~ ·: C-~ :: ' + J: GeometrIc EntIty TechnIcal Symbol Command Symbol --.
Base plate CREATE boundary surface AT die FITTED IN AND PLA IN PARAUfL TO (dig 11 WITH DISTANCE a created plain INSERT support 1 ( dig 11, ~ , ~:~ireJ)~ ' : . created boundary: (fitted in), ~I ' ';' " straightline support Z ~. , INSERT transmission shaft 2 ' COMB ING WITH transmission shaft 1 AND main shaft •• ~ . LS : INSERT wipe PLA IN PARAUfL WITH DISTANCE a FROM base plate TO top plate ( dig 3) 000 base plate ALIGNED TO straight line (dig 4), (dig 5) DIN'" -1J~l CREATE connection TO casing FLANGE - MOLtlTED AT (dig 1) PLAIN PARAUEL Z7 ~.
The availability of geometric associativities are a preliminary requirement for the effective support of the designer. A geometric-associative modelling system must satisfy the following minimum of requirements: • • • • augment the geometric CAD model by geometric associativities allow geometric associativities to be defined through both conventional and more advanced communication techniques provide the user with appropriate feedback at every step of the design provide enhanced modification operators.
Advanced Modelling for CAD/CAM Systems by Hans Grabowski, Reiner Anderl, Michael J. Pratt