BASICS OF MODELLING Hi Good Morning to every body, as i posted on Pro-Engineer article i am here to say about basics of modelling. Generally modelling of a 3D model is done from a 2D drawing. These 2D drawings are generally called as Orthographic projections. See the below image In the above image the drawings on right side are orthographic views of the left sided 3D model. These are connected by lines known as projectors. These 3 views are three faces of 3D model.And based on views we can divide them as First angle Third angle First angle is a type of projection in which the object lies between observer and plane.In this projection the object is situated in first quadrant. All Indian standards comes under first angle type In case of third angle the plane situates between object and observer.Object is situated in third quadrant.Third angle is generally used by British standards. Everybody has a doubt how to select type of projection used,...
SKETCHING Sketching is a basic process in 3D modeling of a component. For any component a sketching is primary thing. For any model it consists of three planes. The planes shown above are the three planes of views. The three planes shown are orthogonal in nature i.e., every plane makes an angle 90 0 with each other. To do sketching we have to select any one plane. We do sketching on a plane. Sketching is a 2D.To make it into 3D we use several options like extrude, revolve, sweep etc,. In order to do sketching on any plane we have to select a plane and it selects a reference plane along with selected plane in order to make into 3D model. The below diagram shows the sketching plane. The sketch plane consists of different sketching options like Line, Circle, Rectangle, Arc, Ellipse, Spline. The basic drawing options are 1. Line -- General line , Tangent lin...
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