http://www.appropedia.org/Laurel_Tree_Charter_School

1. Onderdonk’s Box
Current Specialists
Conor Ritz, Nic Sabo, Arrow Walker,
Brian Weekly
Engineering 215 Fall 2012

2. Purpose
Design and implement an apparatus that
teaches series versus parallel wiring.
Incorporate mystery within the apparatus.
Designed for use by students grade 7-12.

3. Criteria Weight
Safety 10
Fixable 8
Durability 7
Educational Value 7
Mystery 7
Cost 2

4. Description of Final Design

5. Onderdonk

6. How Criteria Was Met
Safety - Low Voltage, Low Current, Low Risk
Fixability – Inexpensive Components, Easy Access, Simple
Durability - Polycarbonate, Plywood, Protective Coating
Educational Value - Versatile, Lessons Evolve, Small
Learning Curve
Mystery - Slider, Adaptable
Cost - Project cost $$$

7. Itemized Cost of
Costs
Materials Annual Maintenance
Item Maintenance Cost
Material Quantity Cost Light Bulbs $4.98
Batteries $3.99
Spray paint 2 $12.38 Total $8.97
E10 Lamp Base 4 $8.60
#13 miniature bulb 6 $2.34 Hours Spent On Project
#407 miniature bulb 6 $2.64 8
Alligator Clips 20 $6.78
Polycarbonate 40
1 Donated 58
(12”x18”)
Wood Glue 1 Donated
½ inch plywood
1 Donated
(4’x8’)
Copper Terminals 14 Donated Phase 1 Problem Formulation
Phase 2 Literature Review
Shipping - $13.40 Phase 3 Alternative Solutions 26
Phase 4 Decision
Total $46.14 Phase 5 Specification 33

8. Summary
Contracted
Designed
Built
Implemented