18F23_CleanRoom

About

The clean room project was created by Aneuvas Technologies, Inc and is overseen by Dr. Timothy Becker. The project objective is to design and build a portable clean hood and to fabricate the frame for the clean room. The clean hood was to produce and maintain a positive pressure, which will reduce the number of foreign particles in the structure. This makes a clean environment for which the sponsor can conduct sterile experiments and test in. The company manufactures and analyzes minimal invasive microcatheter medical devices, used to treat aneurisms and other vascular defects in the brain. This project will benefit the client’s research and development of their products by producing a clean low particle count environment

Requirements

The requirements for this project include the customer requirements and the engineering requirements. The customer requirements were provided directly from the client/sponsor. The engineering requirements were derived from the customer requirements and were given a unit for measurement and/or a targeted value. The customer and engineering requirements are displayed in the table below. All of the customer requirements were met except for the project being inexpensive.

Customer Requirements	Objective	Achieved	Engineering Requirements
Inexpensive	Low cost and within budget	NO	Cost ($)
Portable	2-3 people can transport	YES	Weight (kg)
Positive Pressure	Have a higher pressure inside of structure than outside	YES	Pressure (Pa)
Visibility	Able to see inside structure	YES	Area (m^2)
Clean	Maintain an ISO classification	YES	Particle Count (ISO)
Durability	Reassure the structure will not fail	YES	Velocity (m/s)
Reliability	Last for an extended period of time	YES	Power FFU (W)
			Assembly Time (min)

Meet The Team

Our team is compiled of three senior students, all seeking a Bachelor's Degree in Mechanical Engineering and expecting to graduate May of 2019. We worked hard together to meet our clients goals. We were from different cities and different cultures, and we learned new things about each other as we progressed through the semesters. Always working to each other's strengths to get different task completed, we were the Cleanroom Team.

Katie Hoffman

Team Manager

Document Manager

klh562@nau.edu

Daniel Marquez

Client Liasion

Document Manager

dam286@nau.edu

Hannah Reed

Web Manager

Budget Manager

hjr39@nau.edu

GALLERY

These Images show the design work completed by the Cleanroom team. Starting from the early stages of concept generation for the hood and room, the early CAD drawings of the hood and room, the clean hood prototype, manufacturing of the hood and room frame, final products, and the final CAD drawings.

CLEAN HOOD CONCEPT DESIGNS

Shown below are 4 of the concepts generated for the design of the clean hood. It can be seen that all the designs are for a vertical laminar flow hood, this is the type of clean hood the client desired.

CLEAN ROOM CONCEPT DESIGNS

Shown below are the two designs that were selected to be built from and integrated.

EARLY CLEAN HOOD CAD ASSEMBLY

The two images below show the final iterations of the CAD for the hood at the end of the first semester of capstone.

EARLY CLEAN ROOM CAD ASSEMBLY

The two images below show two different views of the CAD for the room at the end of the first semester of capstone.

CLEAN HOOD PROTOTYPE

The three images below show the prototype created at the end of the first semester of capstone. The "aluminum" frame was 3D printed, the "glass" was clear plastic sheeting, and the fan unit was made from a cardboard box, with two computer fans blowing air down towards the table, and a dryer sheet for the filter.

MANUFACTURING OF CLEAN HOOD

The images below show the manufacturing of the polycarbonate for the hood, all the corners were epoxied and then internal corner brackets were installed for extra stability and durability. The small hardware was installed on the hood and is seen on the bottom right image.

The image below is the manufactured aluminum frame for the hood, it was welded by the NAU Machine Shop.

MANUFACTURING OF ROOM FRAME

The manufacturing of the frame starts with the welding of the frame, the top (top middle image) was welded first and the bottom (top right image). Then grinding was done to the interlocking parts of the frame (bottom left and middle). Finally the frame was assembled and ready for powder coating (bottom right image).

FINAL PRODUCTS

The left image show the completed hood with the fan unit in place. The door of the hood is opened, which is the operating position. The image in the middle shows the powder coated frame. The right image shows the completed frame, the bottom bars were powder coated red for safety.

FINAL CAD of HOOD and ROOM FRAME

The left image is the completed CAD assembly of the hood. The middle and right image are the completed CAD for the room frame, where the middle image is of the assembled frame and the right is an exploded view of the frame.