Group 22 - Swingline Electric Stapler - Revision history

GICL Bot: GICL Bot: Updated link(s)

2009-03-17T23:08:54Z

GICL Bot: Updated link(s)

M Piecyk: /* CAD Drawings */ Added CAD files

2009-02-06T03:08:06Z

CAD Drawings: Added CAD files

MAE277G22: /* After Assembly */

2007-12-10T16:48:50Z

After Assembly

MAE277G22: /* After Assembly */

2007-12-10T16:47:28Z

After Assembly

MAE277G22: /* After Assembly */

2007-12-10T16:46:33Z

After Assembly

MAE277G22: /* After Assembly */

2007-12-10T16:25:06Z

After Assembly

MAE277G22: /* After Assembly */

2007-12-10T16:23:18Z

After Assembly

MAE277G22: /* Assembly */

2007-12-10T16:22:36Z

Assembly

MAE277G22: /* Disassembly Procedure */

2007-12-10T16:14:58Z

Disassembly Procedure

MAE277G22: /* Disassembly Procedure */

2007-12-10T16:10:11Z

Disassembly Procedure

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 ===CAD Drawings===
-The CAD files can be downloaded [[Media:Group_22_CAD.zip|here]].
+The CAD files can be downloaded <!--GICL Bot edit:-->[[Group_22_CAD.zip Contents|here]].
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← Older revision		Revision as of 03:08, 6 February 2009
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	===CAD Drawings===		===CAD Drawings===
		+
		+	The CAD files can be downloaded [[Media:Group_22_CAD.zip\|here]].

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 <b>Additional Suggested Changes</b>
-NOTE: see also Executive Summary
+NOTE: see also After Disassembly
 *Better housing of the wire.  The wire connecting to the motor should be held in place by a clamp.  Other exposed wires should be held in place by tape so that they are not loose and easily pulled.
@@ Line 571: / Line 571: @@
 *The clearance of the stapler should be raised so it can staple bigger documents, which means the addition of a stronger motor.
-*The design uses 5 gears. If this number was reduced to three gears more space would be available for a larger motor. This would also reduce the amount of energy lost due to friction between the gears, which makes better use of the motors power.
+*The current design uses 5 gears. If this number was reduced to three gears more space would be available for a larger motor. This would also reduce the amount of energy lost due to friction between the gears, which makes better use of the motors power.
-−
-*As for the overall design, we want to see more stable design. The material that is used to cover the outside is very fragile. Since it is a portable device, it is inevitable that user may drop the product. The plastic cover was indeed very brittle, so it would break very easily.
 ==References==

@@ Line 559: / Line 559: @@
 The disassembly and assembly processes are pretty much the reverse of one another. Some of the steps within the processes can be switched, but the general big steps are just the reverse of each other.  Because it’s basic principles that you take some thing off, you just have to put the back the same way (e.g. you unscrew a screw on one slot by turning the screw counterclockwise, then when you put it back, you will turn the screw clockwise). We use the same set of tools to assemble and disassemble the product. We were not able to assemble of the product due to lack of proper tools (to fix the black wire that connects the main circuit board and the motor).
-<b>Suggested Changes</b>
+<b>Additional Suggested Changes</b>
 *Better housing of the wire.  The wire connecting to the motor should be held in place by a clamp.  Other exposed wires should be held in place by tape so that they are not loose and easily pulled.

@@ Line 535: / Line 535: @@
 <b>How Product Works</b>
-*In auto mode, when we insert the document into the staple slot, the document will touch a metal sensor which connected to a switch. This switch then will automatically move that subsequently close the circuit within the mother circuit board. The mother board now send signal to the motor, which triggers it to start turning its shaft. The motor’s shaft is connected to a set of gears, causing to spin, which move to staple to push down, staple the document.
+*In Automatic mode
-*In Manual mode, we switch the auto-manual switch, which will disable the metal sensor. Now when we put the document into the staple slot, we have to push a trigger on top of the stapler. The trigger work exactly like the sensor’s switch in the auto mode. Everything else happens exactly the same as in the auto mode.
+As stated in Executive Summary:
-The product did not run the same as before due to a technical difficulty. The housing for the wire within the stapler was pretty fragile. During the disassembly process, we accidentally pull the black wire that connected the mother circuit board and the motor, therefore, the operation is erupted.  We can’t fix this problem due to technically difficulty caused by lack of proper tools.
+When a stack of papers is placed under the staple area, the document presses a metal trigger up against a metal plate, instantly closing the circuit. When the circuit is closed, a circuit board sends a signal to the motor. The motor spins, turning a set of four small gears that are connected to it. The last gear has a tab on it, and when the gear spins, the tab presses the stapler arm down against the paper, finally stapling the document.
-.	The most important part to research would be in the area of how many papers the stapler could staple.  This number would have to be exact because it would most likely be used while advertising the product. The first step would be to determine how much power is needed to punch through a piece of paper; from there you can design a motor that matches the amount of power needed to staple the desired amount of papers. When this is done you can design the size of the staple to match the power of the motor. The motor may be able to punch through 40 papers but if the staple can not reach that far you can not say your staple will work on 40 papers.
+*In Manual mode
-.	The disassembly and assembly process is pretty much the reverse of one another. Some of the steps within the processes can be switched, but the general big steps are just the reverse of each other.  Because it’s basic principles that you take some thing off, you just have to put the back the same way (e.g. you unscrew a screw on one slot by turning the screw counterclockwise, then when you put it back, you will turn the screw clockwise). We use the same set of tools to assemble and disassemble the product. We were not able to assemble of the product due to lack of proper tools ( to fix the black wire that connects the mother circuit board and the motor)
+When paper is inserted in the staple area, the user presses a small button on the top of the stapler.  This button has a plastic tab on the bottom of it (inside the stapler when fully assembled).  The tab presses a metal trigger against a metal plate, closing the circuit.  This mechanism is same as in the automatic process, but it is in a different place in the stapler using different physical parts.  The rest of the process is same as above.
-.	It is stated in the executive summary that we  want to make these changes:
+<b>Product Operation After Reassembly</b>
 *Better housing of the wire.  The wire connecting to the motor should be held in place by a clamp.  Other exposed wires should be held in place by tape so that they are not loose and easily pulled.

@@ Line 533: / Line 533: @@
 ==After Assembly==
-.	As stated in the executive summary, the principles behind the product’s operation are pretty simple.  There are two mode of the operation: Manual and Auto (they can be alternated by using the auto-manual switch that is located on the left side of the stapler).
+<b>How Product Works</b>
 *In auto mode, when we insert the document into the staple slot, the document will touch a metal sensor which connected to a switch. This switch then will automatically move that subsequently close the circuit within the mother circuit board. The mother board now send signal to the motor, which triggers it to start turning its shaft. The motor’s shaft is connected to a set of gears, causing to spin, which move to staple to push down, staple the document.

@@ Line 497: / Line 497: @@
 ==Assembly==
-The assembly procedure is very much the reversed process of the disassembly procedure, and is done mostly by hand, screwdrivers only in use when screws are used to attach components:
+The assembly procedure is very much the reverse process of the disassembly procedure, and is done mostly by hand, screwdrivers only in use when screws are used to attach components:
-.Put gears back into gear casing
+.Gears put back into gear casing
-.Shaft at back is put back with the metal casing by using the washer
+.Metal and plastic casings put back together and lock washer put back on shaft
-.Circuit board is attached back into the metal casing using 2 screws
+.Circuit board attached back into the plastic casing using 2 screws
 Note: the single black wire that connect between the main circuit board and the motor is pulled out, we can’t fixed it due to lack of proper tools
-.The spring is now being attached back on
+.Spring reattached
-.Black-red wires running from lower front of stapler attached
+.Black-red wires running from lower front of stapler attached back to the main circuit board
 .Black-red and red-white-black wires running from bottom casing are attached back to the main circuit board
-.Bottom casing is now being attached back to the whole metal casing using 4 screws, 2 on the left side, 2 on the right side
+.Bottom casing attached back to the whole metal casing using 4 screws, 2 on the left side, 2 on the right side
 .LED bulb attached back to the plastic casing
-.Blue manual-auto switch is now attached between the metal casing and the bottom plastic casing.
+.Blue manual-auto switch attached between the metal casing and the bottom plastic casing.
 .Battery contacts attached back to the main black casing
-.The 2 big black casing now being attached back to each other
+.Two plastic casing pieces put back together
-.The two big black casing now being attached back to the bottom plastic casing using 6 screws
+.Plastic casing pieces attached back to the bottom plastic casing using 6 screws
-.Blue staple depth tabs are attached
+.Blue staple depth tabs attached
-.The “Swingline” sticker now attached back to the bottom
+.The “Swingline” sticker attached back to the bottom
-.The staple remover now attached back to its original slot
+.The staple remover attached back to its original slot
 ==After Assembly==

@@ Line 74: / Line 74: @@
 .Stapler was turned over, and the black padding and white “Swingline” sticker were peeled off
-.Two screws on left hand side of casing was removed with screwdriver
+.Two screws on left hand side of casing removed
-.Six screws on bottom of casing were removed wish screwdriver
+.Six screws on bottom of casing removed
 .Blue staple depth tabs were removed by pulling off
@@ Line 84: / Line 84: @@
 .Battery contacts removed by sliding out of their slots
-.Screws holding circuit on left side of casing removed with screwdriver
+.Screws holding circuit on left side of casing removed
 .Blue manual-auto switch pulled out
@@ Line 92: / Line 92: @@
 .Casings completely removed and set aside
-.LED bulb removed
+.LED bulb casing removed
-.Two screws holding metal gear frame to bottom casing on left side removed with screwdriver
+.Two screws holding metal gear frame to bottom casing on left side removed
-.Two screws holding metal gear frame to bottom casing on bottom removed with screwdriver
+.Two screws holding metal gear frame to bottom casing on bottom removed
 .Bottom casing removed and set aside

@@ Line 57: / Line 57: @@
 NOTES:
-All steps easy unless otherwise noted.
+All steps easy and required little force unless otherwise noted.
 Screwdriver used is regular Phillips screwdriver unless noted.  Used to remove all screws.