Problem Statement:

The purpose of my design is to improve the ability of a wagon to transport and load/unload items for everyday use.

Overall Specifications:

-The design should be manufactured from inexpensive materials of metals and plastics.

-The machine should save time transporting items.

Assumptions about the Problem:

-It is assumed that the machine will be lightweight.

-It is assumed that the design will be easy to operate.

-It is assumed that the design will be strong enough to handle everyday loads.

Decision Matrix:

Decision Matrix Reasoning

This decision matrix helped decide which component was the best and played the biggest role according to my evaluation criteria. The evaluation criteria has remained the same in comparison to the strategy, concept, and module decision matrix. This is important because the module chosen has to satisfy the overall specifications and assumptions.

The first component evaluated was the wagon base. This component was to hold the box, door, and various wheels using hole connections. The wagon base was scored with an overall good average due to the negative cost, weight, and size of aluminum being used. The second component evaluated was the wagon box. This component was to sit on the wagon base and hold the door in place for transportation. The wagon box was scored with an overall great average due to the cost and strength of ABS plastics. The third component evaluated was the slide door. It was light weight and could slide items down into the wagon base if necessary. This component was scored with the best average. The fourth component analyzed was the handle. This component was used to pull the weight of the load on the wagon. It scored an overall good average due to the negative cost of machining it. The fifth component analyzed was the block connector. It was used to connect the handle and caster wheel to the wagon base. It had an overall good average due to the negative impacts of stress on strength. The sixth component analyzed was the handle pin. It was used to hold the handle in place within the block connector. It scored an overall great average due to the weight and cost of cold-rolled steel. The seventh component analyzed was the caster wheel. This was used to help direct the wagon with the handle. It scored an overall great average because of the operability and safety of the design. The eighth component analyzed was the wheel for the axle. It was used to connect to the axle to transport the wagon. It scored an overall good average because of the weight of the cast iron. The ninth and final component analyzed was the axle. It was used to connect the cast iron wheels to the wagon body. This component also scored an overall good average because of the weight of the cast iron.

Based on the evaluations criteria from the decision matrix, the slide door was the best and most reliable component used in the wagon with slide door assembly.

CAD Drawings:

Bill of Materials:

Gantt Chart:

Poster:

Lessons Learned:

• I learned how to properly dimension using ANSI standards in Autodesk Inventor.
• I learned how to create a section view using ANSI standards in Autodesk Inventor.
• I learned how to create and use a title block in CAD drawings.
• I learned how to apply the appropriate tolerances for the correct type of fits. 
• I learned how to create and format a Bill of Materials.

Activities Date and Time:

CAD Drawings, 04/24/22 from 12:00 AM to 2:00 AM.

Decision Matrix, 04/25/22 from 4:30 PM to 5:00 PM.

Decision Matrix Reasoning, 04/25/22 from 5:30 PM to 6:00 PM.

Bill of Materials, 04/25/22 from 6:15 PM to 6:45 PM.

Work on Gantt Chart, 04/25/22 from 7:00 PM to 7:15 PM.

Lessons Learned, 04/25/22 from 7:30 PM to 7:45 PM.

Project Poster, 04/25/22 from 8:00 PM to 10:00 PM

Partners

Steven Adkins

Isaac Polson