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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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