Fall_2007_Hwk1_solution

Fall_2007_Hwk1_solution - MAE. 94 Homework set i3 }...

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Unformatted text preview: MAE. 94 Homework set i3 } SOLUTIONS (26 points} Problem 1: Use no more than two short sentences or phrases to define or describe the following tenniooiogios: 1. CAD CAD stands for compuier—aided design or computer-aided drafting. It is a graphics-based communication tooi to produce ongineoring drawings and convey information to the manufacturer of tho part or assembiy. 2. Glass-ho: theory The glanswbox {Emory is o merhod in which one imagines the pan is suspenried in a transparent glass box. Tho orthographic views are obtained by projecting i'mos originaiing at each point of the port and extending to the corresponding glass surface. {The glass box has some Edges unhinged so tho: it can be unfolded onto flat paper plane.) 3. Orthographic proiection The views of an obj'eot are orojectcd parpendicularly onto projection planes with parailcl projectors‘ Usually three mutually perpendicular lines of sigh: are drawn to obtain three orthographic views ofthe object, namely, the from View, the top View, and the side View. 4. 3"! angle prog‘cction Third angic orojection is a convention, a form of orthographic progecrion used in the United Stores and Canada In this projection, tho image plane Hos between the eye and the obj act, the fine of Sign: goes through the image plane ofthc part and one assmnos inc part is projected back aiong the lines of sight to the image: plane. 5. E’rofiic plane The profilo planes are the two side planes? the lofi hand profile piano and the right hand profile piano. (20 points} Pmblem 2: Given the from and 10;: views 6f an objeci, draw tine righ: side View offiae obj act {2i} paints) i’roblem 3: Given the {Op and right Vifiws of an object, draw the fimm View of the object (40 points) Problem 5%: 3. Given {ha fmnt and fight viaws of an abject, draw the top View ofthe object. J0. WM ...
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Fall_2007_Hwk1_solution - MAE. 94 Homework set i3 }...

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