*Gate 1: Project Planning - Revision history

MAE 277 2012 - Group 5: /* Citation */

2012-12-07T01:30:05Z

Citation

MAE 277 2012 - Group 5: /* Development Profile */

2012-12-07T01:26:35Z

Development Profile

MAE 277 2012 - Group 5: /* Citation */

2012-12-07T01:20:56Z

Citation

MAE 277 2012 - Group 5: /* Citation */

2012-12-07T01:20:44Z

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MAE 277 2012 - Group 5: /* User Interaction Profile */

2012-12-07T00:55:42Z

User Interaction Profile

MAE 277 2012 - Group 5: /* Materials Profile */

2012-12-07T00:51:56Z

Materials Profile

MAE 277 2012 - Group 5: /* Materials Profile */

2012-12-07T00:51:11Z

Materials Profile

MAE 277 2012 - Group 5: /* Materials Profile */

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Materials Profile

MAE 277 2012 - Group 5: /* Complexity Profile */

2012-12-07T00:47:41Z

Complexity Profile

MAE 277 2012 - Group 5: /* Energy Profile */

2012-12-07T00:39:44Z

Energy Profile

← Older revision		Revision as of 01:30, 7 December 2012
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	[9] Halliday, Resnick, & Walker. (2011). ''Fundamental of Physics'' (Vol. 1, 9th ed.). Buffalo, New York: John Wiley & Sons, Ic.		[9] Halliday, Resnick, & Walker. (2011). ''Fundamental of Physics'' (Vol. 1, 9th ed.). Buffalo, New York: John Wiley & Sons, Ic.

−	[10] 15 Cfr 1150.2. (N.D.). ''Title 15: Commerce and Foreign Trade''. Retrieved December 6, 2012, from http://cfr.vlex.com/vid/1150-2-prohibitions-19636521	+	[10] 15 Cfr 1150.2. (n.d.). ''Title 15: Commerce and Foreign Trade''. Retrieved December 6, 2012, from http://cfr.vlex.com/vid/1150-2-prohibitions-19636521

@@ Line 146: / Line 146: @@
 #*The Nerf Longstrike CS-6 is a part of the N-Strike series of Nerf weapons created by the company Hasbro.  Nerf was originally a toy brand created by Parker Brothers; however, it is currently owned by Hasbro [2]. The history of the Nerf gun can be traced back to the late 1960s when a Nerf footballs were used using the foam material now used in today’s Nerf bullets.  Frisbees were then created, followed by the basketball, but today Nerf is most commonly known by teens for its toy guns that Hasbro calls “blasters.”  The first foam ball blaster was created in 1969 by Reyn Guyer.  Soon to follow, in 1989, Nerf created its very first blaster that used a simple air pump action to shoot a foam ball from a plastic tube.  Next came the variant design of the dart blaster in 1992. Since then, Nerf has continued to enhance and create new blasters to appeal to the new generations that use them [1]. Appealing to the age range of boys between 6 and 16, Nerf altered the blasters to shoot farther and hold more ammunition.  The darts have developed from felt tipped, to suction tipped, to rubber tipped over the years.  Today, in order to design a new blaster, around “fifteen Hasbro designers, engineers, marketers, product development specialists, model markers, model painters, and computer aided design experts” are needed. [1]   The Nerf Longstrike CS-6 was released to the public during the spring 2010 and is currently the longest Nerf blaster yet, at 3 feet long.  This Nerf blaster is lighter, sleeker, and cheaper than the previous sniper weapon called the Nerf Longshot [2]. The Nerf Longstrike CS-6, along with the many other Nerf weapons sold today, brought in $40 million of revenue in 2011 and with new blasters being designed today, the brand will continue to expand and develop [1].
 #'''Economic and Global Concerns:'''
-#*The Nerf Longstrike was available for sale in the spring of 2010 [2]. The Nerf gun is designed to resemble a real sniper; however, it does not use the same coloring as actual weapons.  Nerf guns use bright neon colors so that it can be easily seen that it is not a real weapon, but a toy that will not harm anyone.   A law was put into place in May of 1989 stating that "no person shall manufacture, enter into commerce, ship, transport, or receive any toy, look-alike, or imitation firearm" [10].  By easily displaying that the Nerf blaster is a toy people are at ease and children are allowed to shoot what they want without harming objects or people around them. Although the global factors play an important role in the design of the Nerf blaster, an economic design factor was also considered when packaging the Nerf Longstrike CS-6.  The blaster was broken down into 7 components so that it could easily fit into a box.  When these 7 components are assembled, the blaster is 3 feet long.  Creating a box to hold a 3 foot long weapon would have cost more.  The economy at this time is still suffering from job losses; therefore, cheaper products are more appealing to the public and will produce greater revenue for Hasbro.
+#*The Nerf Longstrike was available for sale in the spring of 2010 [2]. The Nerf gun is designed to resemble a real sniper; however, it does not use the same coloring as actual weapons.  Nerf guns use bright neon colors so that it can be easily seen that it is not a real weapon, but a toy that will not harm anyone.   A U.S. law was put into place in May of 1989 stating that "no person shall manufacture, enter into commerce, ship, transport, or receive any toy, look-alike, or imitation firearm" [10].  By easily displaying that the Nerf blaster is a toy people are at ease and children are allowed to shoot what they want without harming objects or people around them. Although the global factors play an important role in the design of the Nerf blaster, an economic design factor was also considered when packaging the Nerf Longstrike CS-6.  The blaster was broken down into 7 components so that it could easily fit into a box.  When these 7 components are assembled, the blaster is 3 feet long.  Creating a box to hold a 3 foot long weapon would have cost more.  The economy at this time is still suffering from job losses; therefore, cheaper products are more appealing to the public and will produce greater revenue for Hasbro.
 #'''Sales, Delivery and Support:'''
 #*The Nerf Longstrike CS-6 is sold all across the United States.  Nerf weapons can be found in local Target, Wal-Mart, and Toys R’ Us stores, and can also be found online on amazon.com or ebay.  However, Nerf guns, including the Longstrike, are not only distributed and sold in the U.S.  Distributers for the Hasbro Company can be found across the globe.  The Nerf line is sold in Japan by Tamar Tomy, as well as in England, Australia, and New Zealand by the international Hasbro companies [1]. The Longstrike can be easily sold due to the fact that is does not require any batteries; thus, creating a longer life cycle for the toy and appealing to consumers.  Another factor that aids in the sale of this toy is the fact that the accessories are interchangeable amongst all the N-Strike Series weapons.  This allows for the consumer to feel as if they are getting their money’s worth with the different combinations of accessories that can be used on each blaster.

← Older revision		Revision as of 01:20, 7 December 2012
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	[9] Halliday, Resnick, & Walker. (2011). ''Fundamental of Physics'' (Vol. 1, 9th ed.). Buffalo, New York: John Wiley & Sons, Ic.		[9] Halliday, Resnick, & Walker. (2011). ''Fundamental of Physics'' (Vol. 1, 9th ed.). Buffalo, New York: John Wiley & Sons, Ic.

−	[10] 15 Cfr 1150.2. (N.D.). Title 15: Commerce and Foreign Trade. Retrieved December 6, 2012, from http://cfr.vlex.com/vid/1150-2-prohibitions-19636521	+	[10] 15 Cfr 1150.2. (N.D.). ''Title 15: Commerce and Foreign Trade''. Retrieved December 6, 2012, from http://cfr.vlex.com/vid/1150-2-prohibitions-19636521

← Older revision		Revision as of 01:20, 7 December 2012
Line 287:		Line 287:
	[9] Halliday, Resnick, & Walker. (2011). ''Fundamental of Physics'' (Vol. 1, 9th ed.). Buffalo, New York: John Wiley & Sons, Ic.		[9] Halliday, Resnick, & Walker. (2011). ''Fundamental of Physics'' (Vol. 1, 9th ed.). Buffalo, New York: John Wiley & Sons, Ic.

−	[10] 15 Cfr 1150.2. Retrieved from http://cfr.vlex.com/vid/1150-2-prohibitions-19636521	+	[10] 15 Cfr 1150.2. (N.D.). Title 15: Commerce and Foreign Trade. Retrieved December 6, 2012, from http://cfr.vlex.com/vid/1150-2-prohibitions-19636521

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 ===User Interaction Profile===
-:*Through careful analysis and research, Group 5 came up with the conclusion that the Nerf Longstrike CS-6 has similar interfaces to that of a real sniper weapon.  The flip-up sight has a similar intended use to that of a scope on a sniper, allowing the shooter to aim at the intended target.  The Longstrike CS-6 also has a cocking bolt, which is pulled backward and then forward, to prepare the foam dart to be shot.  The quick-reload clip and barrel extension are also similar to the components on a real sniper.
+:*Through careful analysis and research, Group 5 came up with the conclusion that the Nerf Longstrike CS-6 has similar interfaces to that of a real sniper weapon.  The Flip-Up Sight has a similar intended use to that of a scope on a sniper, allowing the shooter to aim at the intended target.  The Longstrike CS-6 also has a Cocking Bolt, which is pulled backward and then forward, to prepare the foam dart to be shot.  The Quick-Reload Clip and Barrel Extension are also similar to the components on a real sniper.
-:*In order to fire the weapon, the user has to insert a maximum of six darts into the clip, load the clip into the gun, cock the gun backwards and then forwards, and pull the trigger to fire a dart. On the quick-reload clip, a picture of the dart is shown along with an arrow, illustrating to the user the correct direction in which the darts should be inserted.  Also, above the cocking bolt, a small picture is shown illustrating the four necessary steps to fire the weapon.  The first picture illustrates pulling the cocking bolt back towards the user, then loading the clip, pushing the cocking bolt back to its original position and pressing the trigger.  Other intuitive interfaces include the simple removal of the barrel extension by unclipping it from the gun along with attaching the scope by sliding it into place. These interfaces are very intuitive allowing children to easily play with the toy by sliding the cocking bolt, aiming, and shooting the desired target [2].
+:*In order to fire the weapon, the user has to insert a maximum of six darts into the Quick-Reload Clip, load the Quick-Reload Clip into the gun, cock the gun backwards and then forwards, and pull the Trigger to fire a dart. On the Quick-Reload Clip, a picture of the dart is shown along with an arrow, illustrating to the user the correct direction in which the darts should be inserted.  Also, above the Cocking Bolt, a small picture is shown illustrating the four necessary steps to fire the weapon.  The first picture illustrates pulling the Cocking Bolt back towards the user, then loading the Quick-Reload Clip, pushing the Cocking Bolt back to its original position and pressing the Trigger.  Other intuitive interfaces include the simple removal of the Barrel Extension by unclipping it from the gun along with attaching the scope by sliding it into place. These interfaces are very intuitive allowing children to easily play with the toy by sliding the cocking bolt, aiming, and shooting the desired target [2].
 :*There is little to no regular maintenance required for the Nerf Longstrike CS-6.  The maximum maintenance required would be the purchase of new darts after abusive or rough usage [2].
 :*Small diagram located next to cocking bolt illustrates the four easy steps to prepare and fire the blaster.

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 ===Materials Profile===
 #'''Exterior'''
-#*The exterior of the Nerf gun is comprised of several different components. At the first look there are 6 different pieces in the box, the base of the gun, the stock, the sight, the extended barrel, the cocking pin, the clip, and the bullets of the gun. The six components listed are either made of hard or soft plastic. The product is a children’s toy; therefore, the material used must be safe and not cause harm to young children.  Plastic is also easy to produce and inexpensive, allowing for more Nerf guns to be made at a lower price. The plastic pieces are either colored blue or orange and have a digital camouflage design, making the Nerf gun look more like an actual military piece of equipment. The final component, the darts, are made of foam so when they hit someone, or something, nothing is harmed. There are also some visible pieces of steel with the screws in some parts holding the Nerf Longstrike CS-6 together. The plastic and steel materials found during the initial analysis of the Nerf gun are illustrated in the Plastic and Steel photo below.
+#*The exterior of the Nerf gun is comprised of several different components. At the first look there are 6 different pieces in the box, the base of the gun, the stock, the sight, the extended barrel, the cocking pin, the clip, and the bullets of the gun. The six components listed are either made of hard or soft plastic. The product is a children’s toy; therefore, the material used must be safe and not cause harm to young children.  Plastic is also easy to produce and inexpensive, allowing for more Nerf guns to be made at a lower price. The plastic pieces are either colored blue or orange and have a digital camouflage design, making the Nerf gun look more like an actual military piece of equipment. The final component, the darts, are made of foam so when they hit someone, or something, nothing is harmed. There are also some visible pieces of steel with the screws in some parts holding the Nerf Longstrike CS-6 together. The plastic and steel materials found during the initial analysis of the Nerf gun are illustrated in the Plastic and Steel photo below.[[File:Cockingbolt.png|center|thumb|'''Plastic and Steel:''' The photo of the cocking bolt illustrates plastic materials, outlined in white, and steel materials, outlined in red, Group 5 discovered during the initial analysis of the Nerf gun.|350px]]
 [[File:Cockingbolt.png|center|thumb|'''Plastic and Steel:''' The photo of the cocking bolt illustrates plastic materials, outlined in white, and steel materials, outlined in red, Group 5 discovered during the initial analysis of the Nerf gun.|350px]]
 #'''Interior'''
 #*After thoroughly analyzing the exterior of the Nerf gun and the materials used, Group 5 came to a conclusion of the materials expected to be found on the interior of the gun.  More plastic is expected to be found inside the Nerf gun because it is the base material of the toy.  However, Group 5 also expects to find steel parts, such as screws, inside the gun which help keep the internal components in the proper alignment and aid in the firing of the mechanism. After multiple practice tests of firing the Nerf gun, Group 5 also came to the conclusion that a spring system is aiding in the release of the foam dart from the gun; therefore, a spring made of steel is expected to be found in the interior of the gun.

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 #*'''Visual of Components Listed: ''' The Nerf Longstrike CS-6 can be broken down into six main components.  The following photo shows these six components using the corresponding numbers and components found in the List of Components for the Nerf Longstrike CS-6.[[File:Nerfcomponents.png|center|center|thumb|'''Visual of Components: '''The numbers 1 through 6 illustrated in the photo above, correspond to the numbers and components listed in the List of Components for Nerf Longstrike.|400px]]
 #'''Complexity of Components'''
-#*Based on the initial analysis of the Nerf Longstrike CS-6, each component appears to be relatively simple.  The barrel extension, base, shoulder stock, quick reload clip, and flip up sight are all made of the same plastic material. The cocking bolt is also made of plastic; however, from the original assembly of the gun it was documented that there is a medal rod connecting the two plastic nobs.  Also, the base component is assumed to be more complex underneath the outer shell of plastic protecting the inside.  Underneath this covering, is where the more complex interactions of the system will be found.  The base, barrel, shoulder stock, and quick-reload clip are all held together by screws.  Removing these from each component will be simple.  Overall, each individual component shows simplicity and will cause no trouble in the first stage of the disassembly process.
+#*Based on the initial analysis of the Nerf Longstrike CS-6, each component appears to be relatively simple.  The Barrel Extension, Main Base, Shoulder Stock, Quick-Reload Clip, and Flip-Up Sight are all made of the same plastic material. The Cocking Bolt is also made of plastic; however, from the original assembly of the gun it was documented that there is a medal rod connecting the two plastic nobs.  Also, the base component is assumed to be more complex underneath the outer shell of plastic protecting the inside.  Underneath this covering, is where the more complex interactions of the system will be found.  The Main Base, Barrel Extension, Shoulder Stock, and Quick-Reload Clip are all held together by screws.  Removing these from each component will be simple.  Overall, each individual component shows simplicity and will cause no trouble in the first stage of the disassembly process.
 #'''Complexity of Component Interactions'''
-#*Although the individual components appear to be simple, the interactions between certain components are more complex.  More complex interactions include the spring and air pump system that has been assumed to be located underneath the plastic covering of the base.  From external analysis, the trigger appears to have a complex interaction with the subcomponents that are underneath the plastic covering.  When the trigger is pressed the bullet is released from its cocked position, producing a more complex interaction.  Also, the process of the removal of the foam dart from the clip and into the barrel is complex in theory.  However, it is easy to connect and disconnect the barrel extension.  The barrel must simply be twisted into place creating a simple interaction between the base and the barrel.  The simple covering of the base protects the more complex firing mechanism inside.
+#*Although the individual components appear to be simple, the interactions between certain components are more complex.  More complex interactions include the spring and air pump system that has been assumed to be located underneath the plastic covering of the Main Base.  From external analysis, the Trigger appears to have a complex interaction with the sub-components that are underneath the plastic covering.  When the Trigger is pressed the bullet is released from its cocked position, producing a more complex interaction.  Also, the process of the removal of the foam dart from the Quick-Reload Clip and into the Main Base is complex in theory.  However, it is easy to connect and disconnect the Barrel Extension.  The Barrel Extension must simply be twisted into place creating a simple interaction between the base and the barrel.  The simple covering of the Main Base protects the more complex firing mechanism inside.
 ===Materials Profile===

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 The numbers in the Energy Profile correspond to the numbers underneath which describe the kinetic and potential energies at each points [9].
 #The Nerf N-Strike Longstrike CS-6 is laying on the ground without any darts in it. The dart is instead lying on the ground next to it. The kinetic energy is zero and the total potential energy is zero too for the dart.
-#The Nerf N-Strike Longstrike CS-6 is raised some distance off the ground, the dart is inserted, and the cocking bolt is pulled back. At this point for the dart, the kinetic energy is still zero, the potential energy due to gravity increases proportionally with the height, and, when the cocking bolt is pulled, the potential energy from the air chambers increases.
+#The Nerf N-Strike Longstrike CS-6 is raised some distance off the ground, the dart is inserted, and the cocking bolt is pulled back. At this point for the dart, the kinetic energy is still zero, the potential energy due to gravity increases proportionally with the height, and, when the Cocking Bolt is pulled, the potential energy from the air chambers increases.
-#Once the dart is released and it starts traveling down the barrel, the energies of the dart change. Kinetic energy increases as the velocity of the dart increases, the gravitational potential energy is zero due to the constant height from the ground, and the potential energy from the air chambers decreases.
+#Once the dart is released and it starts traveling down the Barrel Extension, the energies of the dart change. Kinetic energy increases as the velocity of the dart increases, the gravitational potential energy is zero due to the constant height from the ground, and the potential energy from the air chambers decreases.
-#Right as the dart is released from the barrel, the dart’s kinetic energy is still increasing due to the velocity increasing, the gravitational potential energy starts to decrease proportionally as the height of the dart decreases, and the potential energy from the air chambers equals zero.
+#Right as the dart is released from the Barrel Extension, the dart’s kinetic energy is still increasing due to the velocity increasing, the gravitational potential energy starts to decrease proportionally as the height of the dart decreases, and the potential energy from the air chambers equals zero.
 #As the dart continues to accelerate downwards, its kinetic energy increases, its gravitational potential energy decreases proportional with the height, and the potential energy from the air chambers equals zero still.
 #Right here, right before the dart hits the ground, its kinetic energy is at its maximum, gravitational potential energy is almost zero, and the potential energy from the air chambers is zero.