MECHANICAL ANALYSIS Definition of VariablesEasel 5000 By Alison Biercevicz Seth Novoson Justin Yu Team 3 Client National Science Foundation Brooke Hallowell Ohio University (740) 593-1356 [email protected] OF CONTENTS Abstract ……………………………………………………........................... 2 Introduction……………………………………………………………………... 3 Requirements 3 Limitations 4 Other Considerations 4 Method 5 Marketing Comparison 9 Patent Search 12 Discussion………………………………………………………………………. 12 Design 1 12 Design 2 15 Design 3 17 Optimal Design Introduction 19 Optimal design 20 Objective 21 Light Source 22 LED system analysis and calculations 23 Canvas holder 24 Easel extension 25 Easel Base 27 Mechanical Analysis 30 Materials List 37 Budget……………………………………………………………………………. 38 Timeline…………………………………………………………………………... 40 Conclusion………………………………………………………………………. 43 References ……………………………………………………………………… 44 Acknowledgements……………………………………………………………. 44 Appendix A ……………………………………………………………………… 45 1Abstract Easel 5000 is meant to benefit an artist having a number of motor function disorders affecting strength, dexterity and range of motion. Previously, an adjustable easel was designed in 2003, but did not completely fulfill the needs of the artist. The first design did not have the adjustability needed for the artist. It also had a motor that the artist had difficulty using, and had exposed wires that were a safety hazard at the location where it was used. The ultimate goal of the current project, Easel 5000, is to create a new design better suited to meet the needs of the current artist and address the design flaws of the first easel. The artist is in need of an easel that can be easily adjusted. Since the artist has a very limited range of motion, painting with a static easel is incredibly difficult. The artist also cannot use a standard easel with legs due to the fact that he is in a wheelchair. An easel would need to account for wheelchair dimensions in order for the artist to use it. In addition, the artist is unable to paint unless the easel is closer to him. This project will feature an easy-to-adjust easel where the canvas is able to be adjusted toward as well as tilt forward or away from the artist. The easel will also be able to clamp onto a table base, thus eliminating wheelchair obstacles and features a canvas-top light for the artist to use. 2Introduction Through the National Science Foundation, UConn’s Biomedical Engineering Senior Design team has been given the opportunity to build an adjustable easel that will be used in an art studio specifically for people with disabilities. The specific project being worked on for the National Science foundation is Engineering Projects to Aid Persons with Disabilities. The mission of this program is to create devices that assist individuals in reaching their maximum potential for enjoyable and productive lives. Dr. Brooke Hallowell will be the National Science Foundation representative consulting on eing done for an artist at Passion Works Studios. project Easel 5000. The project is bPassion Works is a unique program that createis the artist mate goal The easel project has been done previously, but was not appropriate for the artist. H rd Requirements:s art opportunities for people with developmental disabilities. Tom Depugh whose disability is cerebral palsy. He is the user that this project is primarily being completed for. Cerebral palsy is a condition that results from brain damage. The symptoms include loss of fine motor ability, abnormal muscle tone, abnormal muscle movements, and vision problems. The ultiof the project is to build an art easel that will allow Tom to paint from his wheelchair. ence, Team Easel 5000 will be designing and building an easel suited for hisuse. The easel itself will have the ability to tilt forward and backward, be brought towathe artist, have a battery-operated lighting system, and attach and detach from a tabletop. Ultimately, this easel will be used in the Passion Works Studio and will hopefully benefit all the artists there. The easel has several requirements to consider in the initial designs. The surface In addition, the canvas's surface must be illuminated by a light source that draws where the canvas will be placed must be able to project forward. This is essential due to the lack of the artist's range of motion. If he is unable to get close enough to the easel, it will be extremely difficult for him to use. The artist's moving capabilities require the easel to be dynamic. Movement of the easel includes tilting along the horizontal axis so that the canvas bottom and top are able to tilted closer or father away from the user by use of ball joints or articulations. After the canvas is tilted, in order for the user to paint on it, the canvas must be able to mechanically lock in place without use of any electronic parts. power from a cordless power supply and have a user friendly designed on/off switch. The easel must temporarily mount on a table and be an appropriate size for the artist. Both the necessity of a cordless power supply and mountable design of the easel are to3eliminate safety hazards at the location of painting. The past design for this easel had legs and a power cord that was considered a tripping hazard for the artists with disabilities and aids. The design for the easel must consider light-weight optionsthe easel shall be attached and removed from an art table frequently. Finally, the easel'range of motion should allow the user full control of the painting surface in order to allow him to paint freely. since s • Canvas surface needs to project forward axis tch ply n the easel r client Limitations: • Canvas surface must tilt at the horizontal • Mechanical locking capability • Light source • Easy on/off swi• Cordless power sup• Ball joints used to positio• Attachable base • Appropriate size fo Several design limitations must also be observed. Any