Basic Machines - Revision history

DT Online at 13:19, 9 October 2017

2017-10-09T13:19:14Z

← Older revision		Revision as of 13:19, 9 October 2017
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	[[Category:Primary]]		[[Category:Primary]]
	[[Category:Secondary]]		[[Category:Secondary]]
			[[Category:Ancient Greece]]
	[[Category:Mechanisms]]		[[Category:Mechanisms]]

DT Online at 13:41, 28 August 2016

2016-08-28T13:41:39Z

← Older revision		Revision as of 13:41, 28 August 2016
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	\| colspan="5"\|[https://youtu.be/oEJqmXyrp8c '''Wedge Mechanism'''] - the height of the mechanism can be regulated by the nut and screw. Cylindrical washers allow the screw change its angle as the Wedges are drawn together. The weight of upper wedge maintains the contact between two wedges..		\| colspan="5"\|[https://youtu.be/oEJqmXyrp8c '''Wedge Mechanism'''] - the height of the mechanism can be regulated by the nut and screw. Cylindrical washers allow the screw change its angle as the Wedges are drawn together. The weight of upper wedge maintains the contact between two wedges..
	\| {{#ev:youtube\|oEJqmXyrp8c\|200x200\|right\|\|frame\|loop=1&autoplay=1&playlist=oEJqmXyrp8c}}		\| {{#ev:youtube\|oEJqmXyrp8c\|200x200\|right\|\|frame\|loop=1&autoplay=0&playlist=oEJqmXyrp8c}}
	\|-		\|-
	\| [https://youtu.be/TvsxYUj_6wI '''Turnbuckle'''] - the screws have opposite-hand threads.		\| [https://youtu.be/TvsxYUj_6wI '''Turnbuckle'''] - the screws have opposite-hand threads.
	\| {{#ev:youtube\|TvsxYUj_6wI\|200x200\|right\|\|frame\|loop=1&autoplay=1&playlist=TvsxYUj_6wI}}		\| {{#ev:youtube\|TvsxYUj_6wI\|200x200\|right\|\|frame\|loop=1&autoplay=0&playlist=TvsxYUj_6wI}}
	\| [https://youtu.be/GrK5bhJjex4 '''Screw Press''']		\| [https://youtu.be/GrK5bhJjex4 '''Screw Press''']
	\| {{#ev:youtube\|GrK5bhJjex4\|200x200\|right\|\|frame\|loop=1&autoplay=1&playlist=GrK5bhJjex4}}		\| {{#ev:youtube\|GrK5bhJjex4\|200x200\|right\|\|frame\|loop=1&autoplay=0&playlist=GrK5bhJjex4}}
	\| [https://youtu.be/78T8ufcyGjY '''Scissor Jack''']		\| [https://youtu.be/78T8ufcyGjY '''Scissor Jack''']
	\| {{#ev:youtube\|78T8ufcyGjY\|200x200\|right\|\|frame\|loop=1&autoplay=1&playlist=78T8ufcyGjY}}		\| {{#ev:youtube\|78T8ufcyGjY\|200x200\|right\|\|frame\|loop=1&autoplay=0&playlist=78T8ufcyGjY}}
	\|}		\|}

DT Online: Added animation

2016-08-26T13:24:43Z

Added animation

← Older revision		Revision as of 13:24, 26 August 2016
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	{\|		{\|
			\|-
			\| colspan="5"\|[https://youtu.be/oEJqmXyrp8c '''Wedge Mechanism'''] - the height of the mechanism can be regulated by the nut and screw. Cylindrical washers allow the screw change its angle as the Wedges are drawn together. The weight of upper wedge maintains the contact between two wedges..
			\| {{#ev:youtube\|oEJqmXyrp8c\|200x200\|right\|\|frame\|loop=1&autoplay=1&playlist=oEJqmXyrp8c}}
	\|-		\|-
	\| [https://youtu.be/TvsxYUj_6wI '''Turnbuckle'''] - the screws have opposite-hand threads.		\| [https://youtu.be/TvsxYUj_6wI '''Turnbuckle'''] - the screws have opposite-hand threads.

DT Online: Added animations

2016-08-26T12:49:09Z

Added animations

← Older revision		Revision as of 12:49, 26 August 2016
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	=====Animations=====		=====Animations=====

			* Examples from '''[[2100 Animated Mechanical Mechanisms\|Nguyen Duc Thang's]]''' YouTube Channel '''[[2100 Animated Mechanical Mechanisms]]'''.

	{\|		{\|
	\|-		\|-
	\| ~~'''[[2100 Animated Mechanical Mechanisms\|Nguyen Duc Thang's]]''' example of a~~ [https://youtu.be/TvsxYUj_6wI '''Turnbuckle'''] - the screws have opposite-hand threads.		\| [https://youtu.be/TvsxYUj_6wI '''Turnbuckle'''] - the screws have opposite-hand threads.
	\| {{#ev:youtube\|TvsxYUj_6wI\|~~240x240~~\|right\|\|frame\|loop=1&autoplay=1&playlist=TvsxYUj_6wI}}		\| {{#ev:youtube\|TvsxYUj_6wI\|200x200\|right\|\|frame\|loop=1&autoplay=1&playlist=TvsxYUj_6wI}}
	\| '''~~[[2100 Animated Mechanical Mechanisms\|Nguyen Duc Thang~~'~~s]]~~''~~' example of a~~ [https://youtu.be/~~GrK5bhJjex4~~ '''~~Screw Press~~''']		\| [https://youtu.be/GrK5bhJjex4 '''Screw Press''']
	\| {{#ev:youtube\|~~GrK5bhJjex4~~\|~~240x240~~\|right\|\|frame\|loop=1&autoplay=1&playlist=~~GrK5bhJjex4~~}}		\| {{#ev:youtube\|GrK5bhJjex4\|200x200\|right\|\|frame\|loop=1&autoplay=1&playlist=GrK5bhJjex4}}
			\| [https://youtu.be/78T8ufcyGjY '''Scissor Jack''']
			\| {{#ev:youtube\|78T8ufcyGjY\|200x200\|right\|\|frame\|loop=1&autoplay=1&playlist=78T8ufcyGjY}}
	\|}		\|}

DT Online: Added animations

2016-08-26T12:37:22Z

Added animations

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 The '''[[Mechanical Advantage]]''' of a Screw Thread can be calculated by dividing its pitch by the thread circumference since, for each revolution, a nut advances along the bolt by an amount equal to its pitch : Mechanical Advantage = Distance moved by Effort divided by Distance moved by Load.
 | [[File:NutBolt.png|200px]]
 |}

DT Online at 11:06, 5 August 2016

2016-08-05T11:06:38Z

← Older revision		Revision as of 11:06, 5 August 2016
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	\| '''[[:Category:Pulleys\|Pulleys]]''' can be used speed up or slow down rotating shafts or, as in the example shown, simply to change the line of '''effort''' to a more convenient direction.		\| '''[[:Category:Pulleys\|Pulleys]]''' can be used speed up or slow down rotating shafts or, as in the example shown, simply to change the line of '''effort''' to a more convenient direction.
	Whilst a single pulley used as shown conveys no '''[[Mechanical Advantage]]''', multiple pulleys can be used in a [https://en.wikipedia.org/wiki/Block_and_tackle '''Block and Tackle'''] type arrangement to lift heavy '''loads'''.		Whilst a single pulley used as shown conveys no '''[[Mechanical Advantage]]''', multiple pulleys can be used in a [https://en.wikipedia.org/wiki/Block_and_tackle '''Block and Tackle'''] type arrangement to lift heavy '''loads'''.
	\| [[File:PulleyHoist.jpg\|200px]]		\| [[File:PulleyHoist.jpg\|200px\|right]]
	\|-		\|-
	\| [https://en.wikipedia.org/wiki/Pulley '''Windlass''']		\| [https://en.wikipedia.org/wiki/Pulley '''Windlass''']

DT Online at 09:14, 5 August 2016

2016-08-05T09:14:01Z

← Older revision		Revision as of 09:14, 5 August 2016
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	\|}		\|}

	{{~~Construction Kits~~ Buyers Guide}}		{{Basic Machines Buyers Guide}}

DT Online: Added Template

2016-06-01T09:55:32Z

Added Template

← Older revision		Revision as of 09:55, 1 June 2016
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			__TOC__


			=====Description=====

	[https://en.wikipedia.org/wiki/Machine '''Machines'''] are mechanical devices which are designed such that available sources of energy, force or effort can be used to perform a useful task or to do [https://en.wikipedia.org/wiki/Work_%28physics%29 '''work'''].		[https://en.wikipedia.org/wiki/Machine '''Machines'''] are mechanical devices which are designed such that available sources of energy, force or effort can be used to perform a useful task or to do [https://en.wikipedia.org/wiki/Work_%28physics%29 '''work'''].

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	Some Basic Machines simply enable effort to be applied in a more convenient direction, but more often they are used to increase the load that can be moved or amplify the distance travelled and are therefore [https://en.wikipedia.org/wiki/Mechanical_advantage_device '''Mechanical Advantage Devices''']		Some Basic Machines simply enable effort to be applied in a more convenient direction, but more often they are used to increase the load that can be moved or amplify the distance travelled and are therefore [https://en.wikipedia.org/wiki/Mechanical_advantage_device '''Mechanical Advantage Devices''']


			=====Features and Uses=====

	{\| cellpadding="20"		{\| cellpadding="20"
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	\| [http://wiki.dtonline.org/index.php/Category:Levers '''Levers'''] are described in three ‘classes’ as determined by the relative positions of the '''load''', '''fulcrum''' and '''effort'''. Levers are often used to move heavy loads, as with the Class 1 Lever shown, but if used in reverse, as it were, and the heavy boulder becomes the applied force, then we have the basis of a [https://en.wikipedia.org/wiki/Trebuchet '''Trebuchet'''] type seige weapon making use of the amplification of movement the lever can provide.		\| [http://wiki.dtonline.org/index.php/Category:Levers '''Levers'''] are described in three ‘classes’ as determined by the relative positions of the '''load''', '''fulcrum''' and '''effort'''. Levers are often used to move heavy loads, as with the Class 1 Lever shown, but if used in reverse, as it were, and the heavy boulder becomes the applied force, then we have the basis of a [https://en.wikipedia.org/wiki/Trebuchet '''Trebuchet'''] type seige weapon making use of the amplification of movement the lever can provide.
	The extent to which a Lever can increase effort is calculated as its '''[[Mechanical Advantage]]''' and the degree to which it amplifies movement is calculated as its '''[[Velocity Ratio]]'''		The extent to which a Lever can increase effort is calculated as its '''[[Mechanical Advantage]]''' and the degree to which it amplifies movement is calculated as its '''[[Velocity Ratio]]'''
	\| [[File:MechanismsClass1Lever.jpg\|~~150px~~]]		\| [[File:MechanismsClass1Lever.jpg\|200px]]
	\|-		\|-
	\| [https://en.wikipedia.org/wiki/Pulley '''Pulley''']		\| [https://en.wikipedia.org/wiki/Pulley '''Pulley''']
	\| '''[[:Category:Pulleys\|Pulleys]]''' can be used speed up or slow down rotating shafts or, as in the example shown, simply to change the line of '''effort''' to a more convenient direction.		\| '''[[:Category:Pulleys\|Pulleys]]''' can be used speed up or slow down rotating shafts or, as in the example shown, simply to change the line of '''effort''' to a more convenient direction.
	Whilst a single pulley used as shown conveys no '''[[Mechanical Advantage]]''', multiple pulleys can be used in a [https://en.wikipedia.org/wiki/Block_and_tackle '''Block and Tackle'''] type arrangement to lift heavy '''loads'''.		Whilst a single pulley used as shown conveys no '''[[Mechanical Advantage]]''', multiple pulleys can be used in a [https://en.wikipedia.org/wiki/Block_and_tackle '''Block and Tackle'''] type arrangement to lift heavy '''loads'''.
	\| [[File:PulleyHoist.jpg\|~~150px~~]]		\| [[File:PulleyHoist.jpg\|200px]]
	\|-		\|-
	\| [https://en.wikipedia.org/wiki/Pulley '''Windlass''']		\| [https://en.wikipedia.org/wiki/Pulley '''Windlass''']
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	The '''[[Mechanical Advantage]]''' of the Wheel and Axle therefore can be calculated as the diameter swept by the handle divided by the diameter of the axle.		The '''[[Mechanical Advantage]]''' of the Wheel and Axle therefore can be calculated as the diameter swept by the handle divided by the diameter of the axle.
	\| [[File:MechanismsTheWindlass.jpg\|~~150px~~]]		\| [[File:MechanismsTheWindlass.jpg\|200px]]
	\|-		\|-
	\| [https://en.wikipedia.org/wiki/Inclined_plane '''Inclined Plane''']		\| [https://en.wikipedia.org/wiki/Inclined_plane '''Inclined Plane''']
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	The '''[[Mechanical Advantage]]''' of an Inclined Plane can be calculated by dividing its length by its height.		The '''[[Mechanical Advantage]]''' of an Inclined Plane can be calculated by dividing its length by its height.
	\| [[File:Wedge.jpg\|~~150px~~]]		\| [[File:Wedge.jpg\|200px]]

	\|-		\|-
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	----		----
	The '''[[Mechanical Advantage]]''' of a Screw Thread can be calculated by dividing its pitch by the thread circumference since, for each revolution, a nut advances along the bolt by an amount equal to its pitch : Mechanical Advantage = Distance moved by Effort divided by Distance moved by Load.		The '''[[Mechanical Advantage]]''' of a Screw Thread can be calculated by dividing its pitch by the thread circumference since, for each revolution, a nut advances along the bolt by an amount equal to its pitch : Mechanical Advantage = Distance moved by Effort divided by Distance moved by Load.
	\| [[File:NutBolt.png\|~~150px~~]]		\| [[File:NutBolt.png\|200px]]
	\|-		\|}

			{{Construction Kits Buyers Guide}}


	[[Category:Primary]]		[[Category:Primary]]
	[[Category:Secondary]]		[[Category:Secondary]]
	[[Category:Mechanisms]]		[[Category:Mechanisms]]

DT Online at 17:56, 5 October 2015

2015-10-05T17:56:54Z

← Older revision		Revision as of 17:56, 5 October 2015
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	----		----
	The '''[[Mechanical Advantage]]''' of a Screw Thread can be calculated by dividing its pitch by the thread circumference since, for each revolution, a nut advances along the bolt by an amount equal to its pitch : Mechanical Advantage = Distance moved by Effort divided by Distance moved by Load.		The '''[[Mechanical Advantage]]''' of a Screw Thread can be calculated by dividing its pitch by the thread circumference since, for each revolution, a nut advances along the bolt by an amount equal to its pitch : Mechanical Advantage = Distance moved by Effort divided by Distance moved by Load.
	\| [[File:NutBolt.~~jpg~~\|150px]]		\| [[File:NutBolt.png\|150px]]
	\|-		\|-

DT Online: Added links

2015-09-02T12:05:34Z

Added links

← Older revision		Revision as of 12:05, 2 September 2015
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	[https://en.wikipedia.org/wiki/Machine '''Machines'''] are mechanical devices which are designed such that available sources of energy, force or effort can be used to perform a useful task or to do [https://en.wikipedia.org/wiki/Work_%28physics%29 '''work'''].		[https://en.wikipedia.org/wiki/Machine '''Machines'''] are mechanical devices which are designed such that available sources of energy, force or effort can be used to perform a useful task or to do [https://en.wikipedia.org/wiki/Work_%28physics%29 '''work'''].

	The idea of [~~http~~://~~www~~.~~example~~.~~com~~ '''Basic Machines'''] was first described by the Greek philosopher [https://en.wikipedia.org/wiki/Archimedes '''Archimedes'''] and further developed by later philosphers.		The idea of [https://en.wikipedia.org/wiki/Simple_machine '''Basic Machines'''] was first described by the Greek philosopher [https://en.wikipedia.org/wiki/Archimedes '''Archimedes'''] and further developed by later philosphers.

			Some Basic Machines simply enable effort to be applied in a more convenient direction, but more often they are used to increase the load that can be moved or amplify the distance travelled and are therefore [https://en.wikipedia.org/wiki/Mechanical_advantage_device '''Mechanical Advantage Devices''']


	~~Some Basic Machines simply enable effort to be applied in a more convenient direction, but more often they are used to increase the load that can be moved or amplify the distance travelled.~~
	{\| cellpadding="20"		{\| cellpadding="20"
	\|-		\|-