About this project
Keywords ccat, game, kids, plywood, steel cable, wire
Authors Cameron Smith
Team Jumanji
Status Implemented
Published 2009
Completed 2009
Location Arcata, California
Affiliations Campus Center for Appropriate Technology (CCAT)
Humboldt State University
Engr215 Introduction to Design
Cost USD $ 319.11
SDGs Sustainable Development Goals SDG11 Sustainable cities and communities
Uses game, playing
Translation data

The Bubble Box was created by Team Jumanji to fulfill the need of CCAT to have a functioning Kid's Zone. Other options were considered as a final solution to CCAT's problem, but the Bubble Box was found to have the best blend of the criteria we discussed. The project underwent many changes to become an anti gravity simulation that children can power through a hand crank.

Background[edit | edit source]

Fig 1: Team Jumanji
Team Jumanji Logo

There are many interesting aspects of CCAT for adults to view, however appropriate technology is not as interesting to children who don't understand the environmental, economic, and personal impact of sustainability. Without an Appropriate Technology Kid's Zone residents of CCAT will have a more difficult time touring the house to parents who bring along kids.

Problem Statement and Criteria[edit | edit source]

The main goal of the Kid's Zone is to entertain children while their parents are touring CCAT. An important side goal of the project is to educate children about appropriate technology. Team Jumanji chose to create the AT Kid's Zone, which ended up being the Bubble Box, because the nature of the project was comparatively unrestricted. With the intentions of CCAT in mind Team Jumanji came up with the following set of criteria ranked by measure of importance (10 being most important, 1 being least important).

  • 10 Safety
  • 9 Maintainability
  • 9 Minimal Supervision
  • 9 Ease of Use
  • 8 Durability
  • 8 Practicality
  • 8 Intensity of Fun
  • 7 Appropriateness
  • 6 Aesthetics
  • 6 Educational
  • 5 Cost

Description of the final project[edit | edit source]

Fig 2:Bubble Box w/ Lid
Fig 3: AutoCAD w/ Dimensions
Fig 4: The Bubble Box

The Bubble Box is an original product created and constructed by Team Jumanji for the CCAT Kid's Zone. The Bubble Box converts kinetic energy into electricity using a hand crank. A fan is powered by this electricity which generates wind flowing through a cone filled with light weight cloth balls. Once the fan reaches near full power, the cloth balls float towards the top of the chamber. As seen in Figure 2 the entire structure consists of three key components; the hand crank, base, and conical wind tunnel. An AutoCAD drawing in Figure 3 gives the Bubble Box's dimensions.


Costs[edit | edit source]

Materials Quantity Our Cost Retail Cost
Hand Crank 1 $171.41 $171.00
Wire 6 ft $3.00 $10.00
Plastic Coated Steel Cable 5 ftt $3.96 $4.95
Diameter Tube 5 1/2 ft $0.00 $6.45
Cable Crimps 3 $0.00 $2.07
Washers 2 $0.00 $0.36
1/4 inch Nut 1 $0.00 $0.09
1/4 by 2 inch Bolt 1 $0.00 $0.30
SS Clamp 1 $0.00 $1.49
Lag 1 $0.00 $0.45
Wire Connectors 6 $0.48 $0.48
Acrylic Sheet 2' by 4' $60.14 $60.14
Acrylic Glue 1 bottle $0.00 $2.99
Cloth Balls 240 $3.26 $3.26
DC Plug 1 $1.00 $2.99
Plywood 4' by 4 1/2' $5.00 $9.00
Voltmeter 1 $10.99 $10.99
Toggle Switch 1 $2.97 $5.99
Plywood 4' by 4 1/2' $5.00 $9.00
25 watt Fan 1 $56.90 $56.0
Total $319.11 $361.49

Discussion and next steps[edit | edit source]

The Bubble Box hopefully will be used by children at CCAT for many years to come. However, Team Jumanji planned for the possibility that the Bubble Box could be expanded upon. This increase in versatility came through connecting a toggle switch to a DC plug. If any future projects wanted to use the bubble box as a launching point they could use the DC plug as their source of power.