easelectric team 4 adam frank jackie jon. introduction nsf program: expanding world of disabled...

EASELECTRICEASELECTRICTeam 4

Adam Frank Jackie Jon

Introduction NSF Program:

Expanding world of disabled artists Growing demand for adjustable easels

Disabilities involving limited dexterity, limited mobility, visual acuity trouble, cerebral palsy, moderate cognitive impairment.

Increasing demand for a remotely adjustable easel with many ranges of motion

Introduction General Requirements

Electrically adjustable Easily controlled motion Light weight, easy to store Clamp to tables of different sizes and shapes Movable in three planes as well as a controllable tilt

operation

Introduction Safety Features:

Automatic mechanism to stop movement of easel beyond its maximal excursion

Master switch to turn device on/off Powered by a wall switch Slow movements so there is sufficient time to control

device due to delayed responsive skills of the artist No exposed cords or wires

Market Analysis Patents

5,494,251 – “Artist’s Easel” Allows for vertical motion Has a wheeled Base

5,725,192 – “Adjustable Artist’s Easel” Allows for rotational adjustment, but no motion in

other planes 5,590,864 – “Easel for Handicapped Artists”

Provides only a tilting function

Market Analysis Commercially Available

“The Dreamer” Allows for vertical,

horizontal and tilt motions.

Accessible only to artists who must paint with their mouths.

Not applicable to artists with other disabilities.

Market Analysis How is Easelectric Unique?

Provides easy to use controls Electronically controlled motion in 4 planes Safe and Reliable

Flow Diagram of Operations

Open up easelClamp onto the

tableTurn power switch

on

Use joysticks to make easel move to desired

position

Easel moves to users desire

Turn easel’s power off

Unclamp from table

Fold up easel and put away for

storage

Design Material

Aluminum Stock provided by Independent Welding Inc.

Advantages: Lightweight Sturdy Weldable, easy to fabricate Square tubing will conceal wiring and moving actuators

throughout the easel

Design Easel Components:

Base Clamping arms Major circuit parts

Carriage Responsible for all

motion Actuators Tracking System

1.00

24.00

4.00

1.00

3.00

1.25

17.00

22.00

2.00

1.25

Design- Side Views of Easel

18.00

Actuators Duff Norton Electromechanical Actuators

Specs: 100 lb. Load Capacity (300 lb. Static Load) 12VDC Motor with polarity reversal 6” and 8” Stroke lengths Speed: 1 in/sec (slows with increasing load) Aluminum Construction to match easel frame Special Offer: 4 for $400.00

Tracking System Require strong tracks

resistant to vibration or unwanted movement when painting

Electrical System Client requested the use of

joysticks to control motion of easel

Use of Relays to accommodate low voltage/current joystick and higher voltage/current actuator

Electrical System Circuit requires safety mechanisms including:

Master On/Off Switch Fuse to protect from unsafe current draw Limit Switch to constrain range of motion Possibility of attachments such as canvas light

Optimal Design Budget  Costs

Item Unit Price Quantity S&H Total

6" Linear Actuators $100 4 $20.00 $420

DC Relays $8.75 8 $10.00 $80.00

Joysticks $15.70 2 $10.00 $41.40

Misc. Electronics $35.00 1 $10.00 $45.00

Linear Bearings  $45.00  3  $10.00 $145.00

Raw Material $16.32 0   $0.00

Total       $747.72

Timeline End of December – Parts ordering January – March – Building easel April – Field testing May – Completion of project

Conclusion Easelectric meets the needs of our client and is

less expensive than current products. Mechanically we are looking for a safe and

simple design. Materials are strong and lightweight Electronics need to be simple yet able to

properly control the device.