About
Find Out More About the Product
The client, Integration Industries, has asked to design and build a “Graffiti Bot.” The Graffiti Bot must be capable of plotting on a horizontal surface with a working area of 2.5’ x 2.5’. If possible, the client would like the graffiti bot to be able to plot on vertical surfaces in addition to horizontal surfaces.
Statement of Work
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Purpose
The client, Integration Industries, requested a device that can plot a predesigned drawing automatically on a horizontal surface and predetermined medium.
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Scope of Work
The graffiti bot will need: a frame, a mount for the chosen medium, a program to control how an image will be plotted, a multi axis system that will plot an image in the designated work area.
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Location of Work
The majority of the work will be done in or around room 105 of Confluence Hall.
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Period of Performance
The project began on August 30, 2022 and will be finished by December 15, 2022
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Deliverables Schedule
See project schedule in useful links
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Acceptance Criteria
The bot will be capable of plotting on a horizontal surface with a work area of at least 2.5’ x 2.5’. In addition, the bot will be easily movable and to set up/
Team
Our Hardworking Team
Our team, Ink Masters, are working together to design and create a graffiti bot under certain circumstances which can be found through our site. As upperclassmen in the Mechanical Engineering - Technology program at Colorado Mesa University we are fulfilling these tasks by combining all of our skills and knowledge we have learned thus far. The most prominent skills to complete our design process will include computer programming, computer-aided design (CAD), machining and product development processes.
Product Overview
The graffiti bot will need: a frame, a mount for the chosen medium, a program to control how an image will be plotted, a multi-axis system that will plot an image in the designated work area.
Product Specifications
The grafitti bot will weigh under 25 lbs. Contain a stiff frame that will not deflect or move >0.10 in. while drawing. Obtain a plotting frame of 2.5'x2.5' drawing area. Drawing medium must be capable of drawing on customer specified surfaces.
Product Design and Analysis
Have a minimum drawing surface of a 2.5' x 2.5' area.Plot on a horizontal surface with an optional requirement of drawing on a vertical surface. Draw on a plywood, concrete, and canvas surfaces. Be lightweight and portable.
Customer Requirements
As a team, each member decided how important the customer requirements were on a 0 to 100 point scale. These are the average points distributions.
Engineering Specifications
Using similar decision matrices as the customer requirements, we ranked the importance of the following engineering specifications. These are the average points distributions.
Concept Generation
Check our Designs
Our techniques included all design ideas by including conditional and promising design ideas. From reverse engineering 3D printers and CNC designs, our team used a matrices method to decide what we thought were most important based on the frame, drawing medium, linear motion constraints, and motor drive.
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- Frame
- Drawing Medium
- Linear Motion Constraints
- Motor Drive
Wood
Frame 1
Aluminum
Frame 2
PVC
Frame 3
Steel
Frame 4
Pen
Drawing Medium 1
Marker
Drawing Medium 2
Spray Paint
Drawing Medium 3
Chalk
Drawing Medium 4
Crayon
Drawing Medium 5
Air Brush
Drawing Medium 6
Slide Bearing Carriages
Linear Motion Constraint 1
Aluminum Extrusion
Linear Motion Constraint 2
Linear Shaft Rods
Linear Motion Constraint 3
Slide Rail
Linear Motion Constraint 4
Lead Screw
Motor Drive 1
GT2 Belt/ Pulley
Motor Drive 2
Round Belt/ Pulley
Motor Drive 3
Linear Actuator
Motor Drive 4
Concept Evaluation
Promising Concepts
After using a matrices method, the following concepts have been evaluated as most promising
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Frame
Focusing on total weight, durability, cost and workablity/repairs for our engineering analysis, wood was noticed to be the most promising while PVC piping and aluminum rods were also hopeful.
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Drawing Medium
Focusing on surface variety, cost, ease of setup/replaceability, lifespan and cleanliness for our engineering analysis, a marker was noticed to be the most promising while an airbrush and crayon were also considerable.
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Linear Motion Constraint
Focusing on cost, setup, precision, ease of movement and simplicity for our engineering analysis, linear shaft rods were noticed to be the most promising while slide bearing carriages were also hopeful.
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Motor Drive
Focusing on cost, setup, precision, speed, weight and reliability for our engineering analysis, a GT2 belt/pulley was noticed to be the most promising while lead screws and a round belt/pulley were also reassuring.
Product Generation
Our Product
All designs have been completed.
Solidworks Frame Assembly
Graffiti Bot