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The Mechanical Munchy-Maker is designed by Humboldt State University students enrolled in ENGR 215 class. The client for the Mechanical Munchy-Makerthis design project is Samoa Hostel along with Danco Builders and the Humboldt Bay Center for Sustainable Living.
The Mechanical Munchy-Maker is designed by Humboldt State University students enrolled in ENGR 215 class. The client for the Mechanical Munchy-Makerthis design project is Samoa Hostel along with Danco Builders and the Humboldt Bay Center for Sustainable Living.


== Problem Statement and Criteria ==
{| class="wikitable sortable"
 
|-
! Criteria
! Weight
! Description
|-
|Usability| 10
| Each mechanical application must be easy to use and must be efficient in providing the sufficient amount of energy to the kitchen appliance.
|-
| Safety| 10
| All mechanical aspects of the bike must be harmless and compatible with children.
|-
| Cost
| 9
| The amount of money spent to purchase mechanical bike along with all materials needed to build its applications must come within a limit of $200.
|-
| Durability| 9
| Mechanical machine is expected to withstand time and use for at least two years. Each of our design decisions takes into consideration the durability of our project’s individual mechanical parts as well as the project as a whole
|-
| Maintenance Time| 8
| |-
| Educational Value| 7
| |-
| Aesthetics| 5
| |-
| Multifuntion| 5
| |}


== COSTS ==
== COSTS ==

Revision as of 21:55, 2 December 2010

Come back December 3rd for the page to be completed.

Abstract

The Mechanical Munchy-Maker is a mechanical bicycle that turns human leg power into mechanical rotation and generates energy to power a kitchen appliance, such as a blender. It is designed to turn human leg power into mechanical rotation. As the user begins to pedal the stationary bike, the crank turns the front wheel using a chain drive. The frontwheel is in contact with a splineshaft that converts vertical circular motion into horizontal motion. The splineshaft utilizes the friction produced by the contact of the spinning wheel with the splineshaft to turn the blade on the blender. The design is capable of making various blended concoctions as desired.

Background

Samoa Hostel is located in Samoa, CA. The second floor of the hostel is planned to be renovated by the summer of 2011. It will be designed in a sustainable and historical manner. The objective of this project is to build a mechanical bicycle that teaches Samoa Hostel’s visitors how to generate renewable energy. The design is meant to be located in the kitchen. Since the Samoa Hostels visitors will be bringing food, we decided to provide them with an ability to learn about sustainability while having fun and making a tasty form of food by pedaling.

The Mechanical Munchy-Maker is designed by Humboldt State University students enrolled in ENGR 215 class. The client for the Mechanical Munchy-Makerthis design project is Samoa Hostel along with Danco Builders and the Humboldt Bay Center for Sustainable Living.

Criteria Weight Description
10 Each mechanical application must be easy to use and must be efficient in providing the sufficient amount of energy to the kitchen appliance.
10 All mechanical aspects of the bike must be harmless and compatible with children.
Cost 9 The amount of money spent to purchase mechanical bike along with all materials needed to build its applications must come within a limit of $200.
9 Mechanical machine is expected to withstand time and use for at least two years. Each of our design decisions takes into consideration the durability of our project’s individual mechanical parts as well as the project as a whole
8 - 7 - 5 - 5 }

COSTS

Material Our Cost ($) Potential Cost ($)
Exercise Bike 30.00 140.00
Road Bike 20.00 75.00
Blender 18.00 35.00
4' Rebar 5.96 5.96
Bike Hubs 0.00 26.00
1' x 4' Board 10.09 10.09
Kitchen Aide 0.00 200.00
3/8" Ratchet Extension 10.48 10.48
Rubber Grommets 7.58 7.58
Screws 4.33 4.33
Screws 1.99 1.99
Total Cost 108.43 516.43


6 TESTING RESULTS

During testing, the friction drive showed a need to be tightly attached to the flywheel in order to provide maximal transfer of friction and force. The flexi glass protection added around the transmission mechanism increases the safety of by standers.

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