Water gun

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Revision as of 15:27, 5 February 2011 (view source) Mheshmat@andrew.cmu.edu (Talk | contribs) (→User Studies) ← Older edit		Revision as of 15:28, 5 February 2011 (view source) Mheshmat@andrew.cmu.edu (Talk | contribs) (→Bill of Materials) Newer edit →
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	== Bill of Materials ==		== Bill of Materials ==
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-	{| class="wikitable" border="1" cellspacing="0" align="center" style="text-align:center"
-	! colspan="9" style="background:#efefef;" | External Gun Assembly
-	|-
-	!Part Number !! Sub-Assembly !! Name !! QTY !! Weight (g) !! Function !! Material !! Manufacturing Process !! Image
-	|-
-	| 001||Shell||side A||1||110.5||Cases the assembly together||Plastic||Injection molding||[[Image:1.jpg | 100x100px]]
-	|-
-	| 002||Shell||side B||1||110.9||Holds sub-assemblies together||Plastic||Injection molding||[[Image:002_1.jpg | 100x100px]]
-	|-
-	| 003||Shell||nozzle ring||1||1.2||Cases the nozzle assembly and the assembly shell together||Plastic||Injection molding||[[Image:003.jpg | 100x100px]]
-	|-
-	| 004||Reservoir Release||switch||1||0.5||Releases the reservoir from the body||Plastic||Compression molding||[[Image:004_1.jpg | 100x100px]]
-	|-
-	| 005||Reservoir Release||slider||1||0.4||Guides the path of the release switch||Plastic||Injection molding||[[Image:006.jpg | 100x100px]]
-	|-
-	| 006||Reservoir Release||spring||1||0.3||Creates elastic movement of the release switch ||Plastic||Injection molding||[[Image:005.jpg | 100x100px]]
-	|-
-	| 007||Reservoir Release||retaining plate||1||0.2||Glued to the shell side A to hold the reservoir release sub-assembly together||Plastic||Compression molding
-	|-
-	| 008||Battery cover||spring||2||0.1||Makes contact with the battery||Steel||Bending||
-	|-
-	| 009||Battery cover||latch||1||0.1||Holds the plastic casing and the two shell sides together||Steel||Cutting||
-	|-
-	| 010||Battery cover||spring bracket||1||2.4||Makes contact with the battery||Aluminum||Blanking||
-	|-
-	| 011||Battery cover||plastic casing||1||6.1||Seals the battery entrance||Plastic||Injection molding||
-	|-
-	| 012||Reservoir||body||1||37||Stores water||Plastic||Blow molding||
-	|-
-	| 013||Reservoir||plug||1||1.2||Seals the reservoir's water entrance||Rubber||Injection molding||
-	|-
-	| 014||Reservoir||Tubing||1||2.1||Used to pump water from the reservoir||Vinyl||Injection molding||
-	|-
-	| 015||Reservoir||Top plug||1||0.2||Tighly seals the space between the tube and the reservoir||Rubber||Injection molding||
-	|-
-	| 016||Reservoir||Bottom plug(bigger than top)||1||0.4||Used to pump water from the reservoir||Plastic||Injection molding||
-	|-
-	! colspan="8" style="background:#efefef;" | Internal Gun Assembly
-	|-
-	!Part Number !! Sub-Assembly !! Name !! QTY !! Weight (g) !! Function !! Material !! Manufacturing Process !! Image
-	|-
-	|
	===Main Components===		===Main Components===

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Revision as of 15:28, 5 February 2011

Contents 1 Executive Summary 2 Bill of Materials 2.1 Main Components 2.2 Additional Parts 2.3 Assembly 3 Stakeholders 3.1 Consumer 3.2 Retailer 3.3 Manufacturer 3.4 Shipping/Transport 4 Usage 4.1 How It's Used 4.2 User Studies 5 Mechanical Analysis 6 Design for Manufacture & Assembly (DFMA) 7 Failure Modes & Effects Analysis (FMEA) 8 Design for Environment (DFE) 9 Team Roles

Executive Summary

Bill of Materials

Main Components

Additional Parts

Assembly

Stakeholders

Consumer

With relation to the Saturator water gun, there are two major consumers: parents who are buying the water gun, and children who will be playing with it. The needs and requirements of these two consumers are drastically different as shown below.

Buyer (Parents)

• Low cost
• Safe
• Easy for child to use & store
• Durable
• Long product lifespan
• Non-threatening
• Non-toxic

User (Children)

• Visually attractive
• Fun to play with
• Long range of shooting
• Quick & easy to refill
• Accurate & precise shooting
• Lightweight
• Easy to operate

Retailer

• Satisfying to customer
• Easy to store & sell
• Durable

Manufacturer

• Few parts & materials
• Few manufacturing processes
• Quick & easy to assemble
• Cheap to produce
• Standard parts across a range of models

Shipping/Transport

• Easy to stack
• Small & lightweight product
• Durable

Usage

How It's Used

When initially removed from the packaging, the Saturator requires 4 AA batteries for operation (batteries not included). The batteries are inserted through the base of the water gun. After battery insertion, the Saturator needs to be filled with water before it can be used. This process is described in the image below.

User Studies

Overall, the Saturator AK-47 Water Gun performs at the average standard for toy water guns. While the water container or clip stays in place, the gun needs to be refilled very often during play. Another negative aspect of this product is the range of shooting. Although it is advertised as a gun that can shoot over 25 feet, the stream of water barely makes it a distance of 15 feet.

In comparison to the Banzai Color Stream Blaster Water Gun, the Saturator is lighter and easier to maneuver.....

Mechanical Analysis

Design for Manufacture & Assembly (DFMA)

Failure Modes & Effects Analysis (FMEA)

Design for Environment (DFE)

Team Roles