28/04/2020 - Class to clarify doubts
In this class, the professor explained some of our doubts about the work and the lessons.
03/03/2020 - Parabolic Surface
In the 3rd of March class we started using AutoCAD to create 2D and 3D surfaces. To be possible to create a Parabolic Revolution Surface it´s mandatory to draw, at first, a parabola . And what is a Parabola? Is a curved line, without a rigorous determination, usually the result from a plannar section in a cone, where the section plan has to be paralell to the cone geratrix. It is mainly composed by an axis, a guideline, a focus and a vertex. To start the parabola, we drew a vertical line, starting at the point of x,y coordinates 50, 50 and ending ate the point 50, 200 . This vertical line will be the guideline of the parabola. Then, we drew another line, perpendicular to the first one, from the point 50, 125 to the point 300, 125 . This one will be the axis of the parabola. On this second line, whit a distance of 50 units from the guideline, we marked the focus of the parabola. And, between the guideline and the focus point, we marked the vertex of the future...
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