CHECKSHEET FOR PART MINI-PROJECT (Cover page 1 of 2)

NAME: Jesse Ebert

Pre-CAD Plan

_1__ Identify Primary & Secondary Features

_1__ Explain Rationale for Location of Origin

_1__ Pick Effective Front/Top/Side Views

_1__ Order of Feature Implementation

_1__ Locate/Calculate Needed Dimensions

_1__ Keep track of ALL Assumptions

Above and Beyond (Exemplary)

_1__ Exceptional organization and neatness

_1__ Analysis of steps/features that could prove difficult

___ Other:________________________________________________________________

Process Documentation

_1__ Completed Summary and Custom tabs (w/ summary tab overlaid on model)

_1__ Illustration of Modeling Steps

_1__ Explanation of Modeling Steps

_1__ Rationale for Usage of Sketch Tools

__1_ Expanded and Annotated Design Tree

_1__ Compelling Lessons Learned (about this part as well as about SolidWorks)

Above and Beyond (Exemplary)

__1_ Exceptional organization and neatness

__1_ Thoughtful use of Reference Geometry/Dimensions to simplify sketches

___ Other:________________________________________________________________

Finished Products (based on finished model and drawing)

_1__ Fully-Defined Sketches

_1__ Correct/Accurate Model

_1__ Attractive Visualization of Final Part (include at least 1 color image)

_1__ Mass properties shown

_1__ Quality Engineering Drawing(s) on Multiple Sheets (use of part

properties, filled out ME template w/ title block items)

_1__ Complete/Non-redundant dimension scheme

Above and Beyond (Exemplary)

__1_ Effective use of section view, detail view, or other to assist drawing clarity

_1__ Effective/clean dimension scheme

___ Other:________________________________________________________________

8/8

8/8

8/8

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PART MINI-PROJECT SELF ASSESSMENT (Cover page 2 of 2)

NAME: _Jesse Ebert____________ SECTION: __01____ DATE: _10/15/2020_

1. How many total hours did you spend on the part mini-project, including class time? How many in planning? How many in modeling? How many in documentation?

Planning ____2.5_____ Modeling ____3_____ Documenting ____3.5_____ Total ___9_____

2. Using the ME 301 grading rubric (1-4), analyze your performance in the following:

1- incomplete, major deficiencies 3 - complete, meets expectations 2- complete, some deficiencies 4 - exemplary, exceeds expectations

Project Component Self Rating

Rationale

Pre-CAD Plan - Identify Primary & Secondary Features - Explain Rationale for Location of Origin - Pick Effective Front/Top/Side Views - Order of Feature Implementation - Locate/Calculate Needed Dimensions - Keep track of ALL Assumptions

3.5

All of these are indicated in my pre-cad plan. I am still a little unsure of what qualifies for assumptions, but I indicated what I thought they were and tracked any additional assumptions in my process documentation.

Process Documentation - Summary Tab Overlaid on Model - Illustration of Modeling Steps - Explanation of Modeling Steps - Rationale for usage of sketch tools - Annotated (i.e., renamed) Design Tree - Lessons/Discoveries (about this part as

well as about SolidWorks)

4

I feel that I covered all these points. My lessons learned are in my summary tab.

Finished Products - Fully-Defined Sketches - Correct/Accurate Model - Attractive Visualization of Final Part

(include at least 1 color image) - Calculation of Mass & Center of Mass - Quality Engineering Drawing(s) on

Multiple Sheets (w/complete set of dimensions, use of part properties, and filled out ME template w/ other title block items)

4

I feel that I covered all these points.

PART MINI-PROJECT SCHEDULE

Day 1 - Design Suite Kick-Off (GJ 108)

1. Part Mini Project introduction and assignment review.

2. Analyze legacy drawing and ask questions.

3. Pre-CAD: specify planes, origin, axes, reference geometry, and modeling approach. (homework)

4. Begin modeling part. (homework)

5. Log notes/assumptions you make about your part. (homework)

6. Inventory additional consulting questions you would like answered. (homework)

Days 2 & 3 - Computer Lab Consulting (JEB 331)

7. Bring hard copy and electronic documents/files to class on flash drives.

8. Share modeling/drawing rationale and progress to date.

9. Actively participate in individual/group consultations and problem solving.

10. Finish SW model and mass/center-of-mass calculations. (homework)

11. Finish SW drawing(s) w/dimensions and annotations. (homework)

12. Have someone check your drawing and sign off in the title block. (homework)

13. Prepare a complete documentation package. (homework)

a. pre-CAD plan

b. process documentation

c. finished products

Day 4 - Submit Entire Package at beginning of class October 20

Initial Drawing

Pre-Cad Plan

Process

I started by sketching on the front plane. I copied the original geometry with basic lines and used

to origin and a Y-axis construction line to fully define my sketch. I had to sum the given

dimensions to make this possible. I also estimated an 8mm radius on the top by the gears.

I used the revolve tool to create a solid body from this sketch about my center construction line.

I used to “Top Plane” to sketch the features on the “bottom” of the part.

I used the Extruded Cut feature to cut the center keyway “Through all” and then the holes and

notches “Up to Next”.

I added the fillets and chamfers and arranged them according to size.

I created a tangent reference plane on the outside diameter of my primary body and set it

perpendicular to the Front Plane so that I could use my construction lines in my gear profile.

I created a rough outline of the gear cut using the negative of the tooth profile. I had to extend

this profile past the surface because the initial cut left a thin layer on top of the cut. I also had to

create a new sketch with a point to loft to because when I tried to use the point from my initial

sketch, the lofted cut tried going to the entire main body geometry.

I used the circular pattern tool to repeat this tooth profile for a total of 38 teeth. I used the inside

diameter as a path.

I then adjusted my gear profile sketch to get a more realistic gear profile that worked better with

the number of teeth.

I assigned the material to be Cast Carbon Steel and updated the summary and custom tabs. My

lessons learned are in the Summary Tab.

Drawing