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Mechanical Engineering Technology

MEC 1012


MEC 1012 - Design Communication II
Assignment 1- Review of MEC 1011

Each student must meet the conditions and objectives of this assignment in order to earn a passing grade in the course.


This Assignment is an abbreviated version of the MEC 1011 Final Project.


        Your assembly (or sub-assembly) must include 3 or 4 custom parts and be held together by a set of at least two standard fasteners. Your fasteners may be identical (i.e. two of the same screw).

        You may start with an existing design whose drawings are not available to you, or you may design from your imagination and your experience.

        Your models must demonstrate the appropriate use of: Revolve, 3D Fillet, Shell, Rib, Thread, 3D Pattern, 3D Mirror, and Projected Geometry.

        Your documentation must adhere to the standards of completeness and quality outlined in Priorities 1 and 2 of the MEC 1011 Final Project

        Your tolerances must be consistent with your design guide’s stated process capabilities and minimum clearances (i.e. your parts must fit together and be ‘manufacturable’). Zero draft is allowed. Also, the nature of some fit must depend on feature size and location (i.e. a pair of screws holding two parts together like assignment 10 from MEC 1011). This does not require geometric tolerances, but consider using them anyway.


        Produce a concept sketch of an assembly or sub-assembly that meets the conditions above.

        Produce a complete set of working drawings based on your concept using Autodesk Inventor. Set up and use an Inventor project file in V:\MEC\1012\Spring_05\Assignment1\TXA\username. Use A-size portrait or B-size landscape sheets.

        Develop a design guide, using Word, to compile the rules of the design, ranging from aesthetics (ex. brushed stainless parts fastened with black socket-head cap screws) to manufacturing process plans and capabilities (capabilities include minimum reasonable tolerances and what geometric restrictions apply, like draft for casting). Your guide should also specify minimum clearances between mating parts. Consider table and outline structures for your design guide (see example). Save your design guide (.doc or .htm) in your V: drive folder.

        Exchange feedback with a peer. After making all necessary changes based on feedback, you must indicate who checked the drawings using the 'Checked by' iproperty.

        Turn in a paper package (stapled top left) consisting of:

a.      Design guide

b.      Concept sketch

c.      Set of working drawings (A-size portrait or B-Size landscape printed 1:1 with drawing scale of your choice. Fold B-size pages accordion style).