Group 33 - Polaroid Camera

Revision as of 02:04, 8 December 2006

Group Members

Shoaib Alam

Toshifumi Kawashima

Suguru Nakamura

Gregory Berkowitz and

Ritwik Saha

Aim of the Project

The aim of this project is to disassemble a Polaroid disposable camera and to then reassemble the parts while reporting observations. Cad drawings are going to be used to show certain, important parts of the camera. After observing how the different components work in the camera, improvements will be suggested.

Description

The product is a one-time use disposable, camera with flash manufactured by Polaroid. Majority of its parts, being made of ABS Plastic and by injection molding.

Disassembly

The following where the main features noticed during the disassembly process.

•Remove the cardboard covering.

•Remove 1 screw which held the back and the casing together. The screw was located beneath the view finder.

•Then we seperated the back and the front covers, which were fastened by Plastic fasteners.We also observed that these plastic fasteners were used extensively throughout the camera to keep components locked to each other. We figured it was a good way to reduce production cost.

•We had to take out the battery to prevent short circuit, and for safety purposes.

•We then took out the cover which protected the film housing, and then took out the film.

•Then we popped out the view finder.

•To have a closer look at the circuit board, we had to remove it by unscrewing the smaller screws were used to keep the circuit board in place

•After taking out the circuit board we could have a closer look at the spring amd sprocket component in the camera. which rolled the film and changed the film count, using gears.

•Black Plastic cover was used to keep light out, so that it wouldn't damage the film.

Outer Components

The Front Exterior of The Camera

The outer casing is made of ABS plastic, and manufactured thru Injection Molding. As shown in the picture, The front exterior houses 7 major components, namely:

•View Finder: The user sees the scene for the picture thru this.

•Flash: It is powered by the battery.

•Flash Button: It charges the Flash with the power from the battery.

•Lens: It lets the light in, and the shutter, placed behind the lens, exposes that light to the film.

•Lens Holder: It keeps the lens in place

•Film Casing: the lid for the film

•Film Advance Wheel: it rolls up film into the "Film Canister" and clicks off numbers on the "Frame Counter."

The Back Exterior of The Camera

The outer casing is made of ABS plastic, and manufactured thru Injection Molding. As shown in the picture, The back exterior houses 2 major components, and 1 feature.

•View Finder: The user sees the scene for the picture thru this.

•Film Advance Wheel: it rolls up film into the "Film Canister" and clicks off numbers on the "Frame Counter."

•Grip: Its a feature in the back cover, which allows users to have a better grip on the camera.

The Upper Exterior of The Camera

•Frame Counter: Gives the number of frames (Pictures) taken

•Shutter Button: Activates the shutter, which exposed the light to the film, hence taking that picture.

•Flash Ready Button: Shows when then flash is charged and ready.

•Vent: For ventilation of heat.

The Lower Exterior of The Camera

•Film Casing Cover: It is the cover for the film compartment.

•Film Swindle: It it rolls the Film.

Inner Components

Disposable Camera Bill of Materials

Part #	Part Name	#	Material	Components Shown in Picture	Manufacturing Process	Image
1	Interior Body (front casing)	1	ABS Plastic	Moulds for different components, in the front casing	Injection Molding
2	Interior Body (back casing)	1	ABS Plastic	View Finder on the back casing.	Injection Molding
3	Outside Cover	1	Thin Cardboard	The cover for the camera	Folding
4	Battery	1	Alkali Metals	Battery used to power the flash	Machine Made
5	Inner Components (The Component Holder)	-na-	Plastic, solder, capacitors, resistors	Placement of various Components inside the camera	-na-
6	Inner Components (Back View)		ABS Plastic	Placement of various Components as seen from the back view
7	Film Canister	1	ABS Plastic	The reel holder, where all the film is stored and protected in.	Injection Molding
8	The Lid of the canister holder	1	ABS Plastic	This lid is used to seal the compartment in the camera, where the film canister is stored.	Injection Molding
9	Circuit connected to the battery			Shows the way the circuit is connected to the battery
10	Front View of the component holder			The placement of different components in the holder.	Injection Molding
11	Lens	1	ABS Plastic	The Lens of the camera	Injection Molding
12	Lens	1	ABS Plastic	Ease to manufacture, cheap	Injection Molding
13	Lens Holder	1	ABS Plastic	Ease to manufacture, cheap	Injection Molding
14	Screw	1	Unknown Metal	Cheap, solid material	Machining
15	Camera Shutter	1	ABS Plastic	Cheap, ease of manufacture	Injection Molding
16	Washer	1	ABS Plastic	Cheap, ease of manufacture	Injection Molding
17	Back Interior	1	ABS Plastic	Cheap, ease of manufacture	Injection Molding
18	Film Cover	1	ABS Plastic	Cheap, ease of manufacture	Injection Molding
19	Pins	2	Brass	Cheap, strength	Machining
20	Camshaft	1	ABS Plastic	Ease of manufacture, cheap	Injection Molding
21	Spring	1	ABS Plastic	Ease of manufacture, cheap	Injection Molding
22	Front Interior	1	ABS Plastic	Ease of manufacture, cheap	Injection Molding
23	Screws(2)	2	Metal	Cheap, strength	Molding
24	Flash Button Conductor	1	Metal	Cheap, Conductivity	Molding
25	Sprocket	1	ABS Plastic	Cheap, Conductivity	Molding
26	Shutter Spring	1	Steel	Elasticity of Material	Die Casting
27	Circuit Board Brace	1	Metal	Cheap, strength	Die Casting
28	Lens Cap	1	ABS Plastic	Ease of manufacture	Injection Molding
29	Film Advance Lock	1	Metal	Cheap,rigidity	Stamping or Die Casting
30	Spring for Shutter Lever	1	Steel	Stiffness/Elasticity	Forming or Die Casting
31	Frame Counter	1	ABS Plastic	Cheap, ease of manufacture	Injection Molding
32	Shutter Lever	1	ABS Plastic	Cheap, ease of manufacture	Injection Molding