CHECKSHEET FOR INITIALS ASSIGNMENT (HW6)

NAME: ___Student Name__________ SECTION #: _01____

Part A. Pre-CAD Plan___ Indicate sketch plane and positioning of origin

_1__ Identification/depiction of basic 2-D shapes

_1__ Identification of key dimensions (attempting to minimize these)

_1__ Identification of supporting relations (use SolidWorks icons)

_1__ Depictions of how/where you will use reference geometry

_1__ Ordered list of feature creation steps and assumptions

Above and Beyond (Exemplary)

_1__ Exceptional organization and neatness

_1__ Analysis of steps/features that could prove difficult

___ Other:________________________________________________________________

Part B. Process Documentation

_1__ Rationale for usage of sketch tools

_1__ Clear visualization of relations

_1__ Thoughtful use of reference geometry

_1__ Details on implementation of SW features

_1__ Annotated design tree and completed part properties custom tab

_1__ Compelling lessons learned

Above and Beyond (Exemplary)

_1__ Exceptional organization and neatness

_1__ Sketches appear to be “powerful” (easily resized due to dimensions and

relations)

___ Other:________________________________________________________________

Part C. Products (based on finished model and drawing)

_1__ Fully-defined sketches

_1__ Sufficiently complex solid model

_1__ Enhancements to appearance of solid model

_1__ Use of ME drawing template

_1__ Multiple, non-redundant views in 3rd Angle orientation

_1__ Thoughtful dimensioning scheme

Above and Beyond (Exemplary)

_1__ Exceptional organization and neatness

_1__ Creative/complex design

___ Other:________________________________________________________________

24/24

8/8

8/8

8/8

ME 301 INITIALS ASSIGNMENT

Draw your initials in the top plane using minimum dimensions and maximum relations.

This should be a ‘powerful’ sketch that can be easily rescaled. Properly use the

origin and define your sketch without using "fix". Next, make your initials "cool and

3D" using feature tools like extrude, shell, fillet, chamfer, etc. Add personal touches

like shading, texture, color, etc.

Turn in the following pre-CAD plan:

design layout sketch/notes (2-D hand drawing with construction lines, basic shapes,

origin selection, basic dimensions, planned use of relations to create fully defined

sketches, simplifying assumptions, and general plan of attack)

Turn in the following process documentation:

design journal (including sketches with relations and dimensions, discussion of your

use of sketch tools, development of your extruded final product, annotated design

tree, completed part file properties summary and custom tabs, and at least three

lessons learned through the assignment). Capture and comment on your work at

intermediate stages of development. Note: completed part properties should include

Author in the Summary tab, and Quantity, PartNo, Material, and Description in the

Custom tab.

Turn in the following products:

fully-defined sketch of your initials before extrusion.

solid model showing details of your finished product in the display window. Use color

screenshots in your word doc for a more impactful presentation.

engineering drawing of your finished product (including shaded isometric view, non-

redundant orthographic views, part properties, necessary and non-redundant

dimensional annotations). Use the ME drawing template (3rd angle orientation and

data exchanged between the part and drawing using part property information).

Pre-CAD plan #1

(missing initial Pre-CAD plan grading sheet)

Not many constraints

provided on the ME301

sketch

Pre-CAD plan Revised

Sketching a blank block to work from

I started by sketching a square on the top plane with the bottom left corner at the origin.

I then extruded the base to a height of 2 inches.

Sketching the text

I created a new sketch on the front plane of the box and drew my initials “JDE” using the line

tool. I used a global variable and set all my text lines to be “0.4 in” apart and made sure they

were parallel using the parallel, vertical, and horizontal constraints.

I created a new sketch on the right side of the initial box and drew “ME301” using the line tool

as I did in the previous sketch. Because this sketch was more complex, I tried to use more

constrains and minimize the number of dimensions needed to fully define it.

Extruded cutting the text

First, I used the extruded cut tool to remove everything outside of the sketch body leaving only

my initials “JDE” behind.

I repeated this process with the sketch of the “ME301” text.

Creating the final profile

Using a reference plane (per assignment guidelines) 0.5 inches above the top surface of the part,

I sketched a final profile. The outside rectangle of the sketch was made colinear with the front

and back face. Coincident constraints were used to define to corners.

I played around with a few profile sketches and finally settled on one that eliminated any features

floating in the air but still showed all the desired text.

Setting Part Properties

I renamed my sketches and extrusions with a descriptive name, and set the material to be PET plastic

(which is commonly used in 3D printing).

I also updated the summary information and custom tab.

Final Product

When looking at this model from any direction other than the front or right side, it is difficult to

read the text. However, when facing the model from the correct angle, it is easy to read “JDE”

(front face) and “ME301” (right face).

Top View

Front View Right Side View

Isometric View

Making the drawing

I created a drawing with the front, top, right, and isometric view. I then used the smart dimension

tool to annotate the important dimensions of this model. I used the annotation “TYP” to indicate

that all letter thicknesses of 0.4 inches were typical.

Lessons Learned

1.) When using a single dimension that is repeated multiple times in a sketch, it is helpful to

create a global variable. This way, if it needs to be modified at a later date, it only has to

be changed in one location.

2.) Using constraints can help to reduce the number of dimensions needed to fully define a

complicated sketch.

3.) It is important to make sure all of your sketches are fully defined, but this can get difficult

when there are a lot of line segments.