### PARAMETRIC MODELING LABORATORY DIPLOMA MECH 4TH SEM

PARAMETRIC MODELING LABORATORY

Subject Title                                      :               Parametric Modeling Laboratory

Subject Code                                     :               M-

Hours Per Week                              :               06

Hours Per Semester                       :               96

Objective:

At the end of the course, the student should be able to:

·         Understand what is Machine drawing is all about?

·         Get hold on Modeling software environments

·         Start sketching and creating profiles

·         Know the meaning of constraints and constraining

·         Realize the nature of Parametric and feature based modeling concepts

·         Know the bi-directional associatively

·         Create part model, assemblies and the related drawing views

·         Be able to produce/create models/drawings as per industry standards

1.      Introduction to Machine Drawing-Multi view drawing, Projection System, Drawing Standards-ISO, ANSI, BIS, Introduction to Parametric Modeling software-Understanding parametric modeling technique, knowing the software interface, co-ordinate systems supported.

Define and understand the following terms:

Planes and their creation, reference axis, Sketch, Profile, constraints-geometrical and dimensional, need for constraining, fully constrained, under constrained, over constrained.

2.      Part Modeling:

Conversions of 2D profiles into 3D models-using extrude/protrude and revolve commands. Cutouts/shell creation, placing holes, rounds/fillets, chamfers, creating rectangular and circular array/patterns, array/patterns along a path/curve, mirroring features,  editing of a model, creating internal and external threads. Adding draft, ribs, thin wall features, lip to models. Creating vents, boss. Creating swept and lofted models.

Using part modeling techniques create the following Part Models any 10(see list).

and learn how to generate different Drawing views

Front View

Top View

and Side/Profile view/auxiliary view/section view with annotations.

3.      Model the following machine parts using equations:

·         Hexagonal Nut and Bolt

·         Solid Muff Coupling

·         Bushed Journal Bearing

·         Foot Step Bearing

·         Knuckle Joint

·         Socket and Spigot joint

4.      Assembly Modeling:

Know the assembly environment, setting the assembly environment, types of assembly design approach-bottom-up and top-down assembly.

Creating assembly and sub-assemblies

Editing and modifying assembly relationships

Creating exploded view of the assembly,

Inserting Bill of Materials,

Understand Detail drawing

Know the procedure for detail drawing

Creation of Production drawing.

Using assembly modeling techniques create the following:

·         Plummer Block

·         Screw Jack

·         C-clamp

·         Coupling Puller

·         Pipe vice

Scheme of Examination

 Sl no Questions Marks 1 Create the model and drawing views(any 3)  along with dimensions and annotations as per sketch given 30 OR Create the model and drawing views(any 3) along with dimensions and annotations using equations 30 2 Create the assembly model and drawing with dimension, BOM, Balloons- as per the given sketch 50 3 Viva 20 Total 100