Electrophotographic Cascade Development Apparatus Zachary FoggettiBridget Kearney Dalton MeadRuishi Shen Michael WarrenThomas Wossner

Overview ❖ Team Roles ❖ Stakeholders ❖ Background & Problem Statements ❖ Customer & Engineering Requirements ❖ HOQ ❖ Constraints ❖ Goals ❖ Deliverables ❖ Use Scenarios ❖ Plan ❖ Concerns

Team Roles Team Members Position Dalton Mead (ME) Project Manager Tom Wossner (ME) Edge Master Bridget Kearney (EE) Team Facilitator Zack Foggetti (ME) “Team Bad Guy” & Notetaker Mike Warren (ME) Chief Ruishi Shen (IE) Agenda Master & Photographer

Stakeholders ❖ Team ❖ Faculty Guide - Sarah Brownell ❖ Sponsors - Dr. Marcos Esterman & Dr. Shu Chang ❖ Doctorate and Masters students - Mariela Rodriguez Adames & Shanuk ❖ Trained Lab Techs - Future users

Background Statement The focus of this project is the redesign and construction of a xerography device, called an Electrophotography Cascade Development Apparatus (ECDA). The ECDA is a piece of test equipment that enables the user to determine whether a specific material is able to be printed onto a surface by means of electrophotography. Such a device is currently being used by RIT faculty and graduate students. However, there is much that can be done to improve the device’s functionality. The new design will allow the user to explore options beyond regular toner particles, such as copper, silver, steel, and other metal or metal alloys.

Problem Statement - Current State ●Basic Design ●Does not provide required functionality ●Human operated liftgate and angle crank ●Surface friction/ clumping impedes flow of toner particles ●Angle between charged and grounded plates is not precise ●Particles being test are still to be determined ●Mechanical and electrical hazards exist

●Working prototype, technical designs ●Improved design with automation of liftgate and angle crank ●Reduce surface friction/ clumping ●Reduce mechanical and electrical hazards ●Handle up to 10kV and 200mA from power supply ●Test up to 10kg of toner ●Fit inside the housing of another testing device (2.75 X 2.25 X 2.75) ft Problem Statement - Desired State

Customer Requirements Requirement Priority Transfer particles using electrophotography 9 Control flow of particles 9 Improve ease of access to sample 9 Automate device processes 9 Handle different types of materials 9 Handle larger particle samples 9 Prevent particle clumping 9 Make device easy to use 9 Make device safe to use 9 Handle required voltage 9 Adjust spacing between charged and grounded plate 9 Make sure plates are parallel to each other 9 Handle range of particle sizes 3 Reduce/ eliminate particle loss 1

Engineering Requirements ●Pinch points ●Flow rate accuracy ●Flow rate range ●Flow rate consistency ●Percentage of particles lost ●# of processes that are automated ●Number of MSD student shock incidents ●Handle 10kV for length of experiment ●Ratio of circulated flow rate to test flow rate ●Quantity of particles per test ●# of intervention steps required during operation ●Setup time ●Range of distance between plates ●Accuracy of distance between plates ●Time required to view results ●Percentage of particles that are stuck to flow path surface ●Particle diameter range that can be accommodated ●Maximum Dimensions

House of Quality

Other Constraints ❖ Understanding of xerography ❖ Proposed Budget: $5,000 ❖ Must fit into (2 ¾ X 2 ¼ X 2 ¾)ft testing device ❖ Reverse engineering -- don’t break anything!

Goals ❖ Create a working prototype ❖ Maintain functionality of original device ❖ Automate aspects of current design to minimize human interaction ❖ Grant ability to test different types of materials for xerography process

Deliverables ❖ An ECDA that is reliable over the long term and over many uses ❖ New design drawings, Bill of Materials ❖ Documented test results ❖ ImagineRIT Presentation ❖ Presentation Paper (End of year) ❖ Final Edge Website

Use Scenarios

Project Plan

Main Concerns ❖ High voltage arcing; shock hazard ❖ Mechanical hazards; pinch points ❖ Time constraints; meeting deadline ❖ Staying within budget ❖ Developing a working prototype ❖ Achieve steady flow of particles ❖ Automate setup ❖ Particle clumping ❖ Particle containment

Summary ❖ Team Roles ❖ Stakeholders ❖ Background & Problem Statements ❖ Customer & Engineering Requirements ❖ HOQ ❖ Constraints ❖ Goals ❖ Deliverables ❖ Use Scenarios ❖ Plan ❖ Concerns

Questions?