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  |File:Default.png |Caption |4 |Measure the lengths of each individual pendulum and tie the lines connecting to the pendulum so there is a gradual increase in the height between the base of the pendulum and each individual pendulum itself.  
  |File:Drillingholes.jpg |Caption |6 |Drill the holes that were previously measured out on the beam and insert the lines holding each pendulum so that the pendulum are properly suspended. Adjust as necessary.  
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  |File:Drillingholes.jpg |Caption |5 |Drill the holes that were previously measured out on the beam and insert the lines holding each pendulum so that the pendulum are properly suspended. Adjust as necessary.
  |File:CircuitBoard.jpg |Caption |7 | Create the L.E.D. light series using high-beam lights, wire, resistors.
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|File:Default.png |Caption |6 | Create the L.E.D. light series using high-beam lights, wire, resistors.
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Revision as of 13:11, 28 April 2017

Template:ENGR215inprogress

The final design

Project Objective

           To create a unique pendulum wave machine different from previous models that will be able to both inspire and educate the community concerning wave functions

Background

The Pendulum Wave Machine is a device meant to provide educational value regarding the function of basic wave patterns. The machine's creator is Team Outback from Humboldt State University's Spring 2017 ENGR 215: Intro to Design Class. Team Outback’s point person is Mr. Ken Pinkerton, a retired teacher from Zane Middle School (Eureka, Ca). The client of the project is the Redwood Discovery Museum in Eureka, CA. The pendulum wave machine makes its debut at the Humboldt Math Festival on the 29th of April, 2017. Mr. Pinkerton wishes for the wave pendulum to be able to provide educational value to the Humboldt Community and serve as a tool in demonstrating basic wave patterns (sine, cosine, etc.) and behavior as it will ultimately reside within the Redwood Discovery Museum in Eureka, CA.

Criteria

The objective is to design a model of a wave pendulum machine that will be able to clearly demonstrate how waves behave. The model will educate the children and community at the Humboldt Math Festival as well as in the Redwood Discovery Museum on how different time periods can affect the motion of waves and influence their behavior.

Criteria Weight (#)
Functionality 10
Portability 8
Storability 8
Cost 9
Safety 10
Durability 10
Inspiration 8
Education 8

Description of final project

Machine Assembly

Figure x gives a step by step instructions on the assembly process of the pendulum wave machine.

Fig 1: Instructions for pendulum wave machine assembly.

AutoCAD Desgin

Fig 1: Basic plan of machine's base box.

The beginning of the pendulum wave machine began with a basic 3D modeling plan of the base of the pendulum in AutoCAD. This step was crucial in being able to synthesize the issue and properly determine the right dimensions.


Costs

Quantity Material Cost ($) Total ($)
2 Plywood

19.99

39.99
1 2x4 Wood

6.59

6.59
2 Metal Rod

7.49

14.98
1 Box of 8x2-1/2 Deck Screws

9.99

9.99
1 Wood Stain

8.99

8.99
1 Wood Glue

5.99

5.99
1 100 pcs pk LED Lights

4.95

4.95
1 Circuit Wires

Donated

0
16 Resistor

Donated

0
1 USB Wall Charger

Donated

0
1 8 pcs 30mm Crystals pck

13.98

13.98
1 Heat Shrink

0

0
1 Reflecting Paper

0

0
Total Cost $105.46

Testing Results

To be done after construction

Pendulum Wave Machine Construction

Materials

Fig 1: A collection of the total materials needed to construct a pendulum wave machine

The pendulum wave machine, although very complex in construction, and incredibly interesting in action, requires very little in actual materials to construct. The materials shown aside and listed below show how a wave machine can be constructed from very little resources.

File:Paperdim.jpg
Machine Construction

Maintenance

Maintenance cost for this project will be kept at the very minimum. Due to the use of high-grade construction wood with steel metal supports, the replacing of the wood structure is not equated into the maintenance cost as it would be simpler to construct a new pendulum machine.

PendulumMaintenanceCosts.png

Troubleshooting

This is only how to troubleshoot basic operation. For complex issues, contact Team Outback.

Problem Suggestion
Pendulum cracks Connect new pendulum to the cord
Line snaps Attach new line
LED light goes bad Unplug and plug back in

Results

  • To be completed after Humboldt Math Fair

Suggestions for future changes

This is where to lay out suggestions for how to make the project function better in the future.

IDEAS


- Talk about alternative solutions??? -type of wood -type of string -type of pendulum

-battery powered for portability -size?????

References

See Help:Footnotes for more. Template:Reflist

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