Black and Decker Grinder

From GICLWiki

(Difference between revisions)

Jump to: navigation, search

Revision as of 19:50, 20 March 2007

Figure 1: Fully dissected product

Description

This product is a produced by Black and Decker. The product is used to grind down metal.

How It Works

Inside the grinder there is an electric motor that spins a shaft connected to a bevel gear. The bevel gear is then attached to another driving shaft. A grinding wheel is clamped onto the driving shaft, causing the grinding wheel to spin.

Because of constant friction and the forces acting on each component there is a certain life expency. This varries for individual parts based on the force acting on the part and the design of the part.

For the bearing, an assumed torque of 0.315 Nm was applied to the shaft. Assuming the grinder is being used constantly the bearing would last 1.83 years before failure. If the grinder was being used six hours every day, 365 days a year then the bearing would last 7.33 years. If the grinder was being used six hours a day, five days a week, the bearing would last 10.26 years.

Parts

The table belows lists the Bill of Materials for the disposable camera:

**Table 3.1: Disposable Camera Bill of Materials**
Part #	Part Name	# Req'd	Mat'l	Manufacturing Process
1	Back Interior	1	ABS Plastic	Injection Molding
2	Back Plastic Cover	1	ABS Plastic	Injection Molding
3	Camshaft	1	ABS Plastic	Injection Molding
4	Eyehole for Shutter	1	ABS Plastic	Injection Molding
5	Film Advance Gear	1	ABS Plastic	Injection Molding
6	Film Advance Lock	1	ABS Plastic	Injection Molding
7	Film Canister	1	Varied	Varied
8	Film Spindle	1	ABS Plastic	Injection Molding
9	Frame Counter	1	ABS Plastic	Injection Molding
10	Front Interior	1	ABS Plastic	Injection Molding
11	Front Plastic Cover	1	ABS Plastic and Rubber	Injection Molding and Molding
12	Inner Lens	1	ABS Plastic	Injection Molding
13	Interior Body	1	ABS Plastic	Injection Molding
14	Lens Holder	1	ABS Plastic	Injection Molding
15	Outer Lens	1	ABS Plastic	Injection Molding
16	Outside Film Advance	1	ABS Plastic	Injection Molding
17	Shutter	1	1040 Steel	Stamping
18	Shutter Lever	1	ABS Plastic	Injection Molding
19	Shutter Spring	1	1040 Steel	Forming
20	Spring for Shutter Lever	1	1040 Steel	Forming
21	Sprocket	1	ABS Plastic	Injection Molding
22	Viewfinder	1	ABS Plastic	Injection Molding
23	Washer	1	Rubber	Molding

Disassembly

The ease of disassembly (ranked on a scale of 1 - 5 with five being the most difficult) is ranked at 2. No tools are required for disassembly but a flathead screwdriver or knife helps.

The following table lists the steps and procedures for disassembly:

**Table 4.1: Disassembly of a Disposable Camera**
Step	Procedure	Image
1	Pop film advance wheel up and out from body; separate covers	Figure 5.1: Exterior Disassembly
2	Remove film canister and film spindle	Figure 5.2: Large Component Removal
3	Remove lens holder, outer lens, shutter cap, shutter spring, shutter, eyehole, and inner lens	Figure 5.3: Lens Assembly Dissection Figure 5.4: Lens Assembly Dissection View 2
4	Remove viewfinder, frame counter, internal film advance wheel, shutter lever, advance lock, camshaft, lever spring, and sprocket	Figure 5.5: Final Component Removal

Right-click here and select "Save Link As" if you want to download the video of the animated disassembly of the camera (.wmv)

Right-click here and select "Save Link As" to download the video of the disassembly of the camera (.wmv)

Files

**Table 5.1: List of Models for Download**
*(Zipped ACIS, IGS, STL, STP, AD_PRT Files)*
Part #	Part Name	3D Models	2D Drawings
1	Back Interior	3D Package	2D Package
2	Back Plastic Cover	3D Package	2D Package
3	Camshaft	3D Package	2D Package
4	Eyehole for Shutter	3D Package	2D Package
5	Film Advance Gear	3D Package	2D Package
6	Film Advance Lock	3D Package	2D Package
7	Film Canister	3D Package	2D Package
8	Film Spindle	3D Package	2D Package
9	Frame Counter	3D Package	2D Package
10	Front Interior	3D Package	2D Package
11	Front Plastic Cover	3D Package	2D Package
12	Inner Lens	3D Package	2D Package
13	Interior Body	3D Package	2D Package
14	Lens Holder	3D Package	2D Package
15	Outer Lens	3D Package	2D Package
16	Outside Film Advance	3D Package	2D Package
17	Shutter	3D Package	2D Package
18	Shutter Lever	3D Package	2D Package
19	Shutter Spring	3D Package	2D Package
20	Spring for Shutter Lever	3D Package	2D Package
21	Sprocket	3D Package	2D Package
22	Viewfinder	3D Package	2D Package
23	Washer	3D Package	2D Package

**Table 5.2: Point and Mesh Clouds Available for Download**
*(Zipped .wrp format)*
Image	Link
Figure 5.1 Front Exterior Scan	Gave to Dave
Figure 5.2 Front Interior Scan	Gave to Dave
Figure 5.3 Rear Exterior Scan (Front View) Figure 5.4 Rear Exterior Scan (Back View)	Gave to Dave
Figure 5.4 Rear Interior Scan	WRP Scan Files

Links

Other Kodak One-Time-Use Cameras

@@ Line 7: / Line 7: @@
 ==Description==
-This product is a one-time use, waterproof camera manufactured by Kodak. It has 23 distinct parts with the majority being made of ABS Plastic and by injection molding.
+This product is a produced by Black and Decker.  The product is used to grind down metal.
 == How It Works ==
-The camera is all mechanical with no electrical components (the exception is a camera with a flash, where a circuit board and battery are included, but that is not the case in this model).
-When the photographer depresses the shutter button (which is actually just an extension of the "Viewfinder"), the button moves the "Shutter Lever" to one side, rotating the "Shutter" until the "Shutter Spring" forces the "Shutter Lever" to return to a halfway position. The "Shutter" cannot be rotated again until the "Shutter Lever" is reset. The "Shutter" remains open for only a fraction of a second, as the "Shutter Spring" retracts it as soon as the "Shutter Lever" passes, allowing light to pass through both lenses to the exposed film. During the "Shutter Lever" movement, the "Camshaft" is offset slightly by an extension from the "Shutter Lever" which releases the "Film Advance Lock."
-With the picture taken, the photographer winds the "Film Advance Wheel" which rolls up film into the "Film Canister" and clicks off numbers on the "Frame Counter." The film is slotted onto the "Sprocket" which is joined to the "Camshaft" causing both to rotate with the film. When the "Camshaft" rotates a complete cycle, the "Shutter Lever" is reset and the "Film Advance Lock" returns to its original position preventing operation of the "Film Advance Wheel".
-The purpose of the "Exterior Front" and "Exterior Back" covers are to protect the camera from the elements. The "Outside Film Advance" allows the rotation of the "Film Advance Wheel" despite the exterior covers. The "Washer" seals the hole between the "Outside Film Advance" shaft and the "Film Advance Wheel"
+Inside the grinder there is an electric motor that spins a shaft connected to a bevel gear.  The bevel gear is then attached to another driving shaft.  A grinding wheel is clamped onto the driving shaft, causing the grinding wheel to spin.
-The "Lens Holder" and "Eyehole Holder" serve to hold their respective components in place. The "Eyehole Cover" allows only a small fraction of the incoming light to be focused on the "Inner Lens" giving a sharper, clearer image.
+Because of constant friction and the forces acting on each component there is a certain life expency.  This varries for individual parts based on the force acting on the part and the design of the part.
+For the bearing, an assumed torque of 0.315 Nm was applied to the shaft.  Assuming the grinder is being used constantly the bearing would last 1.83 years before failure.  If the grinder was being used six hours every day, 365 days a year then the bearing would last 7.33 years.  If the grinder was being used six hours a day, five days a week, the bearing would last 10.26 years.
 ==Parts==

Black and Decker Grinder

Revision as of 19:50, 20 March 2007

Contents

Description

How It Works

Parts

Disassembly

Files

3D Models

2D Drawings

Camera Assembly

Links

Views

Personal tools

Navigation

Search

Toolbox