Coffee grinder
From DDL Wiki
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| 1 || Lid || 1 || 66 || Contains coffee || Plastic || Blow Molded || [[Image:Team6_Part_1.jpg|100px|center]] | | 1 || Lid || 1 || 66 || Contains coffee || Plastic || Blow Molded || [[Image:Team6_Part_1.jpg|100px|center]] | ||
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- | | 2 || | + | | 2 || Flat Head Screws || 3 || <1 || Cup to Scatter Shield || Steel || Catalog Purchase ||[[Image:Team_6_Part_2.jpg|100px|center]] |
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|| 3 || Nut w/ integrated lock washer || 2 || 16 || Crank Assembly || Retainment/Assembly || Steel || Catalog Purchase || [[Image:03_NutWasher.jpg|100px|center]] | || 3 || Nut w/ integrated lock washer || 2 || 16 || Crank Assembly || Retainment/Assembly || Steel || Catalog Purchase || [[Image:03_NutWasher.jpg|100px|center]] |
Revision as of 14:28, 29 January 2014
Contents |
Executive Summary
Primary Stakeholders and Product Needs
Product Function and Use
User Study
Mechanical Function
List of Parts
The following details the list of parts of a hands-free coffee grinder.
Bill of Materials
Part Number | Name | Quantity | Mass (g) | Function | Material | Manufacturing Process/ Purchased Component | Image | |
---|---|---|---|---|---|---|---|---|
1 | Lid | 1 | 66 | Contains coffee | Plastic | Blow Molded | ||
2 | Flat Head Screws | 3 | <1 | Cup to Scatter Shield | Steel | Catalog Purchase | ||
3 | Nut w/ integrated lock washer | 2 | 16 | Crank Assembly | Retainment/Assembly | Steel | Catalog Purchase | |
4 | Toe strap holders | 2 | 6 | Pedals | Ability to secure toe | Plastic | Injection Molding | |
5 | Flange nut | 4 | <1 | Pedals | Attach toe strap holder to foot grip | Steel | Catalog Purchase | |
6 | Screw w/ integrated washer | 4 | <1 | Pedals | Attach toe strap holder to foot grip | Steel | Catalog Purchase | |
7 | Screw | 8 | <1 | Pedals | Attach foot grip to pedal | Steel | Catalog Purchase | |
8 | Pedal cap | 2 | <1 | Pedals | Keep dirt out of pedals | Plastic | Injection Molding | |
9 | Foot grip | 2 | 27 | Pedals | Prevent foot from slipping off pedal | Aluminum | Die Casting | |
10 | Outer jam nut | 2 | 9 | Sprocket Assembly | Retainment/Assembly | Steel | Catalog Purchase | |
11 | Washer | 2 | <1 | Sprocket Assembly | Retainment/Assembly | Steel | Catalog Purchase | |
12 | Inner jam nut | 2 | 7 | Sprocket Assembly | Retainment/Assembly | Steel | Catalog Purchase | |
13 | Pedal | 2 | 54 | Pedals | Central Component in Pedals | Aluminum | Die Casting | |
14 | Tamper Proof Screw | 1 | <1 | Connects cord housing assembly to main body | Steel | Purchased Part | ||
15 | Rubber Foot Pad | 3 | <1 | Prevents Device from Slipping | Rubber | Stamped | ||
16 | Cord Reel Container | 1 | 17 | Contains Cord While Wound | Plastic | Blow Formed | ||
17 | Screw | 3 | <1 | Mates Part 19 to Part 28 | Steel | Purchased Part | 100px|center | |
18 | Power Cord Reel Center | 1 | 3 | Cord Capstan | Plastic | Injection Molded | 100px|center | |
19 | Power Cord Reel | 1 | 26 | Captures Cord | Plastic | Injection Molded | 100px|center | |
20 | Internal Motor Gasket | 2 | 3 | Seals Motor Components | Rubber | Injection Molding | ||
21 | Crank w/ sprocket | 1 | 626 | Spindle/Crank Assembly | Transfers force to chain | Steel | Assembly - Stamping and Die Casting | |
22 | Rear sprocket | 1 | 82 | Rear Hub Assembly | Sees force from chain and sends it to the tire | Steel | Stamping with Post Machining | |
23 | Bearing | 2 | 19 | Rear Hub Assembly | Reduces system friction | Steel, Aluminum | Catalog Purchase | |
24 | Rear wheel | 1 | ? | Rear Hub Assembly | Interface between rear sprocket and ground | Steel, Rubber, Aluminum | Assembly - Catalog Components Mated with a CNC lathed hub | |
25 | Rear axle | 1 | 101 | Rear Hub Assembly | Allows wheel to move | Steel | CNC Lathing | |
26 | Sprocket retaining ring | 1 | 15 | Rear Hub Assembly | Holds sprocket components together | Steel | Catalog Purchase | |
27 | Mechanical Switch | 1 | 1 | Actuates the Safety Switch | Plastic | Injection Molded | ||
28 | Motor Housing | 1 | 47 | Secures motor to device | Plastic | Injection Molded | ||
AC Motor Sub-Assembly | ||||||||
29 | Brushes | 2 | <1 | Provides Current to Commutator | Carbon | Electronic Component | ||
30 | Motor Shaft Cap | 1 | <1 | Transmits Torque from Part 42 to Part ?? | Plastic | Injection Molded | ||
31 | Shaft Insulator | 1 | <1 | Provides Mechanical and Electrical Insulation to the Shaft | Fiber | Stamped | ||
32 | Spring Washer | 1 | <1 | Provides Axial Preload to locate the commutator with respect to the bushings | Copper | Purchased | ||
33 | Small Brown Washers | 4 | <1 | Locates Part 42 Axially | Plastic | Stamped | ||
34 | Large Orange Washers | 2 | <1 | Locates Part 42 Axially | Plastic | Stamped | ||
35 | Small Metal Washers | 2 | <1 | Locates Part 42 Axially | Steel | Purchased | ||
36 | Bearing | 2 | 2 | Locates Part 42 Radially | Steel | Purchased | ||
37 | Brush Side Bracket | 1 | 17 | Locate Part 36 on Brush Side | Steel | Stamped and Bent | ||
38 | Non-Brush Side Bracket | 1 | 16 | Locate Part 36 on Non Brush Side | Steel | Stamped and Bent | ||
39 | Brush Housing | 2 | 1 | Constrains Part 29 | Plastic | Injection Molded | ||
40 | Stator Coil | 2 | 13 | Provides Magnetic Poles | n/a | Electronic Component | ||
41 | Steel Inductor Plate | 30 | 4 | Enhances Magnetic Poles | Steel | Stamped | ||
42 | Rotor | 1 | 77 | Provides Motor Torque | n/a | Electrical Component | ||
43 | Circuit Board | 1 | 28 | Assembly | Electrical Component | |||
56 | Male Drive Adapter | 1 | 15 | Plastic | Injection Molded | |||
Knob Sub-Assembly | ||||||||
44 | Power Button | 1 | 2 | Allows user to operate grinder | Plastic | Injection Molded | ||
45 | Power Button Finger | 1 | <1 | Translate power button movement to connect circuit | Plastic | Injection Molded | ||
46 | Knob | 1 | 8 | Allows user to adjust fineness of grind | Plastic | Injection Molded | ||
47 | Circuit Board Connector | 1 | <1 | Connects fineness knob circuit | Copper | Stamped | ||
48 | Power Button Spring | 1 | <1 | Returns power button after press | Steel | Purchased | ||
49 | Knob Screws | 4 | <1 | Fastens knob sub-assembly | Steel | Purchased | ||
50 | Detent Springs | 2 | <1 | Pushes ball bearings for discrete adjustment of knob | Steel | Purchase | ||
51 | Detent Bearings | 2 | <1 | Allows for discrete adjustment of knob | Steel | Purchased | ||
52 | Detent Housing | 1 | 2 | Contains detent components in knob | Plastic | Injection Molded | ||
53 | Brush | 1 | 3 | Cleans coffee grinds | Plastic | Injection Molded | ||
54 | Body | 1 | 74 | Houses inner components | Plastic | Injection Molded | ||
55 | Power Cord | 1 | Supplies electrical current from outlet to grinder | Assembly | Purchased |
Design For Manufacturing and Assembly (DFMA)
Failure Modes and Effects Analysis (FMEA)
Design for Environment (DFE)
Team Members
Phil Aufdencamp
Justin Barsano
Kristen Hauser - General Organization
Brian Tang
References
Dieter, George E., and Linda C. Schmidt. Engineering Design. 4th Edition. New York, NY: McGraw-Hill, 2009. Print.