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FIRST tool in sketcher workbench to start making geometry is line we start from line okkk. according to my approach WE start gradually and go nicely so go to profile tools tab and pic line from there and click on screen try to draw lines. 

this is your first exercise to go sketcher and rearrange the tools for sketcher. i will upload a video soon about this exercise to you can learn well so wait in next post i teach you how to make your first line ..............and draw many more geometry 

so we are very near to start catia sketcher but we must know which tools importatnt to make sketch and how to put them on screen how to hide and show toolbars. note these tool bars name - 1.Sketch tools 2-draw 3-operation 4-constraint 5-select 6-bottom tool bar these tool must be have on your screen to drew circle,line,rectangle,edit and delete and mirror many more things. for hide click on cross button at right top and if you want back that tool tab right click on right or top tool bar to get all list of tools choose any and click to get that tab.                             

we know how to open catia v5 sketcher now need to know its graphic user interface (GUI)

very first lesson about catia v5 how to start catia v5 and work on it. 1-Double click on CATIA V5 icon wait for little. then you will get this start screen. 2-now click on start and go mechanical design then click on sketcher. 3-now you get this dialog window. 4-you have option to make a drawing on any three planes you can shoose any one of them. 5-now you get your start screen of sketcher.

CATIA (Computer Aided Three-Dimensional Interactive Application)  Initial release 1977 ; 39 years ago As Initially named CATI ( Conception Assistée Tridimensionnelle Interactive  – French for  Interactive Aided Three-dimensional Design  ) it was developed in 1977 as a surface modeler to assist in designing the Dassault fighter jets. Based on ten years of 3-D mathematics research, the program allowed designers and engineers to create complex three dimensional oblects and provide documents for manufacturing. In 1981 the program was renamed CATIA and Dassault Systemes was formed to develop and sell the program CATIA is a 3D Product Lifecycle Management program that supports product development from design to the manufacturing and construction stage. at that time  to develop Dassault's  Mirage  fighter jet. It was later adopted in the aerospace, automotive, shipbuilding, and other industries.  CATIA can be used to create 3D parts made of sheet metal, composites or molds, base