Manufacturing Commons^™

E-Learning Design For Microsoft Access & Asp.Net, Jonathan Choi, Christopher Hom

Industrial and Manufacturing Engineering

The problem definition is that the current video tutorial series is outdated and lacks interactive features that aid with E-Learning. The goal of the project is to create a platform that incorporates features such as structure, interaction, assessments, and competency tests. The project revolved around integrating four softwares together in order to create an effective E-Learning platform. The four softwares were Adobe Captivate, Camtasia, Microsoft Access and Microsoft Visual Studios. Adobe Captive is used to store the tutorial video and assign quizzes. Camtasia is used to record the tutorial videos. Microsoft Access is used to store all the questions given …

Smart Packing With Qr - Improving Cal Poly's Parking System For All Users, Kelsey Bazshushtari, Andrew Lee, Christopher Ragasa

Industrial and Manufacturing Engineering

Cal Poly Smart Parking, herein referred to as CPSP QR Code Initiative, is developed to reduce the wait times student, staff, and guest drivers experience when searching for a parking spot on campus. Cal Poly is currently undergoing a large growth in student population, and, as a result, is experiencing congestion in parking lots. Drivers will commonly spend frustrating amounts of time "vulturing" these parking lots for an open spot. CPSP QR Code Initiative consists of a database that is controlled by user submitted data through QR codes scanned on a user’s smartphone. This system will provide drivers with a …

Soto's True Earth Market Optimization, Hironari Fujita, Wei Lin Luong, Sean Macwilliams

Industrial and Manufacturing Engineering

Soto’s True Earth Market is a new organic market startup which is located in a historical facility in the small town of Cambria. The new owner of Soto’s Andre Ponce has a vision to create a community revolved around local organic foods and sustainability. Since Soto’s is still in the initial startup phase there is a large amount of room for optimization and redesign in order to create a solid customer foundation. Andre presented several opportunities for improvement to the team. With a time constraint of solely two quarters the project team decided to provide the following:

● Old and …

Building A Startup Wine Brand, Sean Christopher Silvestre

Industrial and Manufacturing Engineering

Lisso Wine is a company that currently purchases wine from a California winemaker and resells it in China. In order to reach more customers and increase sales, Lisso wants to create their own brand of wine while keeping the winemaker as a supplier. However, they do not have a plan for the marketing, production, or distribution of their new product. This project will be treated as a startup venture by Lisso Wine and designed to be operated by a handful of people with limited resources. Sustainable and cost-effective materials were selected for the product and it’s packaging in order to …

Inventory Tracking Software Improvement Project, Jacky Leung

Industrial and Manufacturing Engineering

FanimeCon’s Convention Operations department required standardized processes and controls for their inventory tracking software. On top of the current web application, new controls were put into place for checkout limitations. To allow for a continuous improvement effort, processes became standardized with a new graphical user interface where user input is recorded. These will provide processing times for further study in proposing redesigned layouts and more efficient processes.

National Society Of Sales Engineers & National Sales Engineering Competition, Joseph Lynes, Tyler Sasse

Industrial and Manufacturing Engineering

Sales Engineering is a popular career choice for many engineers coming out of university. Despite its continuing growth, many students lack the knowledge and preparation to be successful in the early years of their career. A small collection of sales engineering minors and student clubs are the only option for students interested in technical sales.

Using the DMAIC process, the senior project team went step by step to find and implement the best possible solution to better connect college students and the professional sales engineering industry . The team worked side by side with professionals in the industry and students …

Inclusive Lectern, Trent Canales, Sean Day, Dylan Sigley, Stephen Sippel

Mechanical Engineering

A lectern is an essential piece of equipment for almost all speeches and presentations. They come in many forms and range in degree of professionalism depending on the occasion. Lecterns not only hold a presenter’s notes, a microphone, or other presentation aids, they provide a structure for a presenter that can bolster their confidence during a presentation. As such, it is important that all presenters have a lectern available to them. Unfortunately this is not always the case due to lectern accessibility limitations. This problem inspired the Cal Poly Disability Resource Center to request a lectern that satisfies the Least …

Biomimetic Seal Flipper Test Rig, Gordon D. Belyea, Laura Kawashiri, Dylan Rinker, Kurt Beske

Mechanical Engineering

No abstract provided.

Cp Ev Dynamics, Steven Montevideo, Ashlie Reott, L. Carter Price

Mechanical Engineering

No abstract provided.

El Capitán: Cal Poly Rose Float Digital Drive System, Gregory Raffi Baghdikian

Computer Engineering

In today’s world of smartphones, self-driving cars, and internet-connected coffee makers, it seems as if computers are contained in everything around us. These “embedded systems” have become critical components of our lives, improving everything about the things they control, from cost, to speed, to simplicity. One area that embedded systems has hardly gained a foothold is in the world of floatbuilding. Most of the floats in the Tournament of Roses Parade, including the one built jointly by Cal Poly San Luis Obispo and Cal Poly Pomona, are technologically very simple, using mostly analog components and rudimentary discrete digital logic to …

Design And Testing Of A Top Mask Projection Ceramic Stereolithography System For Ceramic Part Manufacturing, Dylan Robert De Caussin

Master's Theses

Ceramic manufacturing is an expensive process with long lead times between

the initial design and final manufactured part. This limits the use of ceramic as a viable material unless there is a large project budget or high production volume associated with the part. Ceramic stereolithography is an alternative to producing low cost parts through the mixing of a photo curable resin and ceramic particles. This is an additive manufacturing process in which each layer is built upon the previous to produce a green body that can be sintered for a fully dense ceramic part.

This thesis introduces a new approach …

Ultra-Light Bear Canister, Naveen Beasley, Eli Rogers, Cory Wilson, Donald Wood

Mechanical Engineering

A bear canister is the primary tool used by outdoor enthusiasts to protect their food from bears while camping or backpacking. There are many effective products currently on the market, however many are not designed with reduced weight in mind. Hardcore backpackers want to have the lightest gear possible to ease the strain of carrying a large pack for sometimes weeks at a time.

Current bear canisters exist that utilize carbon fiber for weight reduction, however they rely on stock carbon tubes and lack engineering analysis, and no competitor has a fully composite bear canister available. Our sponsor, Nick Hellewell, …

Metals Am Design For Manufacturing, Maren Cosens, Ben Wong, Kevin Hale

Mechanical Engineering

We are looking to improve upon the current post processing techniques for metal additive manufacturing (AM). This project, sponsored by Lawrence Livermore National Laboratory (LLNL), will investigate ways to improve the design of stainless steel 316 parts made by AM, and how these designs will help with post processing techniques. We hope that the findings regarding stainless steel will apply to to improve the AM and post processing handshake in general. In particular, the project will focus on including different features in different basic part design shapes to aid in fixturing and post-processing of the part made by AM. This …

Facility Redesign For Increased Throughput And Improved Product Flow Of Shark Rack Products Final Assembly At Paris Precision, Karina Hromyak, Julia Remnant

Industrial and Manufacturing Engineering

Paris Precision is a metal fabrication company that fabricates metal components for various companies, one of which is Shark Rack, which creates high end server racks. Shark Rack has plans for a dramatic increase in demand over the next two years. Paris Precision’s Final Assembly area is currently not conducive to produce such a large increase in demand. A redesign of the Final Assembly facility is needed to handle the increase in production and to improve product flow through the space. The project team’s objectives are to:

● Study current Final Assembly production process

● Analyze the production flow

● …

Ymca Operations Manual Development, Devlin Stewart

Industrial and Manufacturing Engineering

The San Luis Obispo YMCA sports department was losing money and overworking their employees due to lack of processes and organizational issues. To address this, a plan was made with the sports director to begin organizing the sports department. This would be done by creating an operations manual for them to organize and consolidate all of their relevant information.

The project was scoped to develop a plan for the YMCA to implement an operations manual. By delivering a work breakdown structure, a gantt chart, and a plan for continuous improvement, the YMCA could use these tools to develop their operations …

Zero Waste Campus Dining, Jenny Caudillo, Sarah Dahel, Youlen Ghazalian

Industrial and Manufacturing Engineering

Cal Poly Campus Dining has a goal of becoming a zero waste entity by providing their customers with alternative methods of disposing their trash. Their current operations produce waste, specifically their methods of packaging the food. Campus dining plans to be more sustainable by providing their customers with reusable containers. The objective of this implementation is to reduce waste produced from one-time use, disposable food containers. The success criteria for the desired system is based around the ability to track and measure the reusable containers to prevent further waste, while providing the user an accommodating environment to ensure they will …

Metals Additive Manufacturing Powder Aging Characterization, Thomas Russell Lovejoy, Nicholas Karl Muetterties, David Takeo Otsu

Mechanical Engineering

The metallic additive manufacturing process known as selective laser melting requires highly spherical, normally distributed powder with diameters in the range of 10 to 50 microns. Previous observations have shown a degradation in powder quality over time, resulting in unwanted characteristics in the final printed parts. 21-6-9 stainless steel powder was used to fabricate test parts, with leftover powder recycled back into the machine. Powder samples and test specimens were characterized to observe changes across build cycles. Few changes were observed in the physical and mechanical properties of the specimens, however, there were indications of chemical changes across cycles. Potential …

Solar Turbines Compressor Blade Installation Tools, Ryan Bruce, Carolyn Honeycutt, Stephen Oltrogge, Emmett Ross

Mechanical Engineering

The following report documents a California Polytechnic State University, Mechanical Engineering Senior Project sponsored by the gas turbine manufacturer, Solar Turbines. The senior project team consisted of four senior mechanical engineering students at Cal Poly, all with general concentrations; Ryan Bruce, Carolyn Honeycutt, Steve Oltrogge, and Emmett Ross. Kenneth Thomas sponsored the group and serves as the point of contact between the senior project team and Solar Turbines. He is a member of the Solar Turbines Mechanical Design Engineering Team and a Cal Poly graduate. Christoph Maurer served as the project team’s on-campus advisor.

A gas turbine uses internal combustion …

Universal Weight Machine, Oscar Andrade, Bibiana Koch, Robert Molloy, Haley Rentfro, Emily Woods

Mechanical Engineering

The purpose of this project is to design and build an inexpensive, universally accessible multi-station exercise machine for the physical and mental well-being of athletes of the Special Olympics and Pathpoint Life Education & Advancement Program. The machine has three sides tiered to higher resistance: the first station offers a minimal resistance aerobic exercise focused on moving the arms with an ergometer, the second station provides numerous locations to latch on resistance bands that will build strength in the athlete’s arms and chest, and the final station has a donated weight machine that offers lat pulldowns and flys with maximum …

Automated Pintail Machine, Stephen Etheredge, Andrew Evans, Michael Fernicola

Mechanical Engineering

No abstract provided.

Automated Bearing Press, David Baker, David Brock, Engelbert Diec

Mechanical Engineering

Our group was presented with a challenge to design an automated machine to replace Micro-Vu’s current manual pressing operation. We moved, planned, and scheduled our tasks for the three quarters we will be working on this project by using a Gantt chart. In designing the machine, we generated concepts and used analysis and prototyping to select the most promising ones. Our final design uses a pneumatic press to press the parts, and it includes magazines to hold the parts before pressing, pneumatic actuators to move the parts to and from the pressing location, and a lever to separate the defective …

Low Cost Metal Chip Separator, Alek Linquist, Kale Mckinney, Ryan Jones

Mechanical Engineering

We were tasked by Micro-Vu to design, build, and test a small-scale low-cost metal chip separator to operate on one of their 24/7 mills. The goal of the project was to separate the steel and aluminum chips coming off of the mill’s chip conveyor to end up with a bin of 99% pure aluminum by mass. To accomplish this goal we first brainstormed various possible ideas and performed small scale tests the best ones. After further review we determined the best solution to this problem was a design that involved a cycling magnetic backing that would pull steel out of …

4th And 5th Axis Rotary Table, Dakota Bass, Ricky Riedl, Nicole Slagle, Irene Yee

Mechanical Engineering

No abstract provided.

Fiber Length Attrition In Additive Manufacturing, Michael Chapiro

Materials Engineering

Chopped carbon fibers are used as reinforcements in thermoplastics, but the viscous shear forces that arise in melt-processing reduces the fiber length well below its critical length resulting in only moderate strength and stiffness gains compared to the neat resin. This research project aimed to experimentally determine the effect of the melt–flow portion of a single-screw- extrusion process on carbon fiber length attrition in isolation from the immediately preceding screw–plastication step that is responsible for most of the heat needed for melting. Carbon fibers with an initial length of 2 mm were stirred into 5,000 centipoise and 10,000 centipoise silicone …

Low-Cost Inkjet Process For 3-D Printing, Christopher T. Schmitt

Mechanical Engineering Undergraduate Honors Theses

This paper presents a low-cost 3-D inkjet process design. Current commercially available 3-D inkjet printers (e.g., Objet Connex) that are capable of multi-material printing are expensive and out-of-reach of most consumers. While fused deposition modeling and other extrusion-based hybrid processes for multi-material printing are becoming available, these techniques are slow and relatively low-resolution. This research attempts to fill the gap by presenting a simple and low-cost solution to bring desktop 3-D inkjet to the community by utilizing components from an Epson inkjet printer. The mechanical system was designed with maximum utilization of the Epson carriage system with the addition of …

Mechanical Properties And Microstructure Evolution Of 17-4 Ph Stainless Steel Processed By Laser-Powered Bed Fusion., Harish Irrinki

Electronic Theses and Dissertations

Laser powder bed fusion (L-PBF) is a potential manufacturing route for the production of tooling using different steel materials. However, there is a limited understanding of how the mechanical properties and microstructures of the L-PBF produced parts vary with change in powder type and process conditions. The current research studied the influence of L-PBF process parameters on mechanical properties and microstructures of 17-4PH stainless steel using gas and water-atomized powders. The results demonstrate the feasibility of using water-atomized powders as starting raw materials instead of typically used gas-atomized powders to fabricate parts in the L-PBF process at high energy densities.

Haul Truck Tires Recycling, Jessica N. Lizarazu

Chemical Engineering Undergraduate Honors Theses

The disposal of large Off-the-Road (OTR) tires is an increasingly important concern. These tires can weigh up to 8,450 pounds with an overall diameter and width of approximately 140.7 inches and 45.1 inches respectively. OTR tires are used for mining vehicles such as haul trucks, wheel loaders, backhoes, graders, and trenchers. These new tires cost between $38,000 and $50,000 each, depending on multiple factors including oil prices and the cyclical nature of the industry. Haul trucks contain six tires per vehicle, and mines replace these tires around every 9-12 months. Statistics regarding discarded OTR tires are not provided by the …

Droplet Generation At Megahertz Frequencies, John C. Miers

Mechanical Engineering Undergraduate Honors Theses

Droplet formation has been a fascinating subject to scientists for centuries due to its natural beauty and importance to both scientific and industrial applications, such as inkjet printing, reagent deposition, and spray cooling. However, the droplet generation frequency of common drop-on-demand jetting techniques is mostly limited to ~10 kHz. This paper presents an investigation of the possibility of jetting at megahertz frequencies in order to boost the productivity of drop-on-demand material deposition by ~100 times. The focus of this paper is to understand the limitations of generating droplets at a megahertz frequency and to explore possible solutions for overcoming these …

Computing Research In Academia: Classifications, Keywords, Perceptions, And Connections, Sung Han Kim

Theses and Dissertations

The Association for Computing Machinery (ACM) recognizes five computing disciplines: Computer Science (CS), Computer Engineering (CE), Information Technology (IT), Information Systems (IS), and Software Engineering (SE). Founded in 1947 the ACM is the world's largest society for computing educators, researchers, and professionals. While Computer Science has been a degree program since 1962, the other four are relatively new. This research focuses on understanding the graduate research in four of the five ACM disciplines (CS, CE, IT, and IS) using a large body of thesis and dissertation metadata. SE is not found in the metadata and graduate work in SE is …

Wire + Arc Additive Manufacturing, Micheal Santangelo

GS4 Student Scholars Symposium

Additive manufacturing is a rapidly developing technology which promises to drastically reduce the cost and waste associated with manufacturing parts. However, current systems of additive manufacturing used for creating metal parts which are suitable for use in the aerospace, automotive, and defense industries are complex, expensive, and not robust enough to produce a wide range of part features and geometries. A relatively new method, called wire arc additive manufacturing(WAAM) is a low cost option that can create parts which have a near-net shape, and only require a small amount of post processing before they are ready for use. This system, …