Eccentric Cam - Revision history

DT Online at 08:30, 25 November 2016

2016-11-25T08:30:08Z

← Older revision		Revision as of 08:30, 25 November 2016
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	----		----
	<span style="color: green">'''Note:'''		<span style="color: green">'''Note:'''
	They can be modelled, in wooden mechanical toys for example, by drilling a '''[[Manufactured Board\|Ply]]'''or '''[[Manufactured Board\|MDF]]''' disc off-centre and gluing it on to a rotating '''[[Dowel]]'''.		They can be modelled, in wooden mechanical toys for example, by drilling a '''[[Manufactured Board\|Ply]]''' or '''[[Manufactured Board\|MDF]]''' disc off-centre and gluing it on to a rotating '''[[Dowel]]'''.
	</span>		</span>
	----		----

DT Online at 13:45, 28 August 2016

2016-08-28T13:45:51Z

← Older revision		Revision as of 13:45, 28 August 2016
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	\| [https://youtu.be/RVORJ91ELEE '''Eccentric Driven Pump'''] - the red arrows indicate the rotation direction of the eccentric shaft and the		\| [https://youtu.be/RVORJ91ELEE '''Eccentric Driven Pump'''] - the red arrows indicate the rotation direction of the eccentric shaft and the
	fluid moving direction. The front half of the case is removed.		fluid moving direction. The front half of the case is removed.
	\| {{#ev:youtube\|RVORJ91ELEE\|200x200\|right\|\|frame\|loop=1&autoplay=1&playlist=RVORJ91ELEE}}		\| {{#ev:youtube\|RVORJ91ELEE\|200x200\|right\|\|frame\|loop=1&autoplay=0&playlist=RVORJ91ELEE}}
	\|}		\|}

DT Online: Added animations

2016-08-27T16:15:21Z

Added animations

← Older revision		Revision as of 16:15, 27 August 2016
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	Note that the cam follower need not just move up and down in a '''[[Types of Motion\|reciprocating]]''' motion, but it can be a lever as shown, which will produce '''[[Types of Motion\|oscillating]]''' motion.		Note that the cam follower need not just move up and down in a '''[[Types of Motion\|reciprocating]]''' motion, but it can be a lever as shown, which will produce '''[[Types of Motion\|oscillating]]''' motion.


			=====Animations=====

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

			{\|
			\|-
			\| [https://youtu.be/RVORJ91ELEE '''Eccentric Driven Pump'''] - the red arrows indicate the rotation direction of the eccentric shaft and the
			fluid moving direction. The front half of the case is removed.
			\| {{#ev:youtube\|RVORJ91ELEE\|200x200\|right\|\|frame\|loop=1&autoplay=1&playlist=RVORJ91ELEE}}
			\|}

	{{Cams & Cranks Buyers Guide}}		{{Cams & Cranks Buyers Guide}}

DT Online at 13:15, 3 August 2016

2016-08-03T13:15:47Z

← Older revision		Revision as of 13:15, 3 August 2016
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	[[File:~~MechanismsEccentrics~~.~~jpg~~\|~~250px~~\|right]]		[[File:Lf.gif\|300px\|right]]
	__TOC__		__TOC__

DT Online: Added Template

2016-08-03T13:10:18Z

Added Template

← Older revision		Revision as of 13:10, 3 August 2016
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	[[File:MechanismsEccentrics.jpg\|~~200px~~\|right]]		[[File:MechanismsEccentrics.jpg\|250px\|right]]
			__TOC__


			=====Drescription=====

	Cams with complex profiles can be complicated to manufacture, particularly with the type of equipment available in the school workshop. However, if all that is required is to produce a single up and down motion for every revolution on the cam, a circular cam rotating about a point offset from its centre ''(i.e. eccentric)'', will often suffice.		Cams with complex profiles can be complicated to manufacture, particularly with the type of equipment available in the school workshop. However, if all that is required is to produce a single up and down motion for every revolution on the cam, a circular cam rotating about a point offset from its centre ''(i.e. eccentric)'', will often suffice.


			=====Features and Applications=====

	An [https://en.wikipedia.org/wiki/Eccentric_%28mechanism%29 '''Eccentric Cam'''] would normally provide the follower with [https://en.wikipedia.org/wiki/Simple_harmonic_motion '''Simple Harmonic Motion'''] - ''(this can be defined as the projection of a point on the diameter of a circle as it precesses around it with [https://en.wikipedia.org/wiki/Constant_angular_velocity '''constant angular velocity'''])''.		An [https://en.wikipedia.org/wiki/Eccentric_%28mechanism%29 '''Eccentric Cam'''] would normally provide the follower with [https://en.wikipedia.org/wiki/Simple_harmonic_motion '''Simple Harmonic Motion'''] - ''(this can be defined as the projection of a point on the diameter of a circle as it precesses around it with [https://en.wikipedia.org/wiki/Constant_angular_velocity '''constant angular velocity'''])''.
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			{{Cams & Cranks Buyers Guide}}

	[[Category:Secondary]]		[[Category:Secondary]]
	[[Category:Cams]]		[[Category:Cams]]

DT Online: Added link

2016-02-20T15:17:18Z

Added link

← Older revision		Revision as of 15:17, 20 February 2016
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	----		----
	<span style="color: green">'''Note:'''		<span style="color: green">'''Note:'''
	They can be modelled, in wooden mechanical toys for example, by drilling a ~~[https://en.wikipedia.org/wiki/Plywood~~ '''~~ply~~'''] or ~~[https://en.wikipedia.org/wiki/Medium-density_fibreboard~~ '''MDF'''] disc off-centre and gluing it on to a rotating ~~[https://en.wikipedia.org/wiki/Dowel~~ '''~~dowel~~'''].		They can be modelled, in wooden mechanical toys for example, by drilling a '''[[Manufactured Board\|Ply]]'''or '''[[Manufactured Board\|MDF]]''' disc off-centre and gluing it on to a rotating '''[[Dowel]]'''.
	</span>		</span>
	----		----

DT Online at 18:29, 15 February 2015

2015-02-15T18:29:03Z

← Older revision		Revision as of 18:29, 15 February 2015
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	[[Category:Secondary]]		[[Category:Secondary]]
	~~[[Category:Mechanisms]]~~
	[[Category:Cams]]		[[Category:Cams]]

DT Online: Added note and links

2015-02-14T10:54:37Z

Added note and links

← Older revision		Revision as of 10:54, 14 February 2015
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	An [https://en.wikipedia.org/wiki/Eccentric_%28mechanism%29 '''Eccentric Cam'''] would normally provide the follower with [https://en.wikipedia.org/wiki/Simple_harmonic_motion '''Simple Harmonic Motion'''] - ''(this can be defined as the projection of a point on the diameter of a circle as it precesses around it with [https://en.wikipedia.org/wiki/Constant_angular_velocity '''constant angular velocity'''])''.		An [https://en.wikipedia.org/wiki/Eccentric_%28mechanism%29 '''Eccentric Cam'''] would normally provide the follower with [https://en.wikipedia.org/wiki/Simple_harmonic_motion '''Simple Harmonic Motion'''] - ''(this can be defined as the projection of a point on the diameter of a circle as it precesses around it with [https://en.wikipedia.org/wiki/Constant_angular_velocity '''constant angular velocity'''])''.

			----
			<span style="color: green">'''Note:'''
			They can be modelled, in wooden mechanical toys for example, by drilling a [https://en.wikipedia.org/wiki/Plywood '''ply'''] or [https://en.wikipedia.org/wiki/Medium-density_fibreboard '''MDF'''] disc off-centre and gluing it on to a rotating [https://en.wikipedia.org/wiki/Dowel '''dowel'''].
			</span>
			----

	Note that the cam follower need not just move up and down in a '''[[Types of Motion\|reciprocating]]''' motion, but it can be a lever as shown, which will produce '''[[Types of Motion\|oscillating]]''' motion.		Note that the cam follower need not just move up and down in a '''[[Types of Motion\|reciprocating]]''' motion, but it can be a lever as shown, which will produce '''[[Types of Motion\|oscillating]]''' motion.

DT Online at 08:14, 14 February 2015

2015-02-14T08:14:06Z

← Older revision		Revision as of 08:14, 14 February 2015
Line 3:		Line 3:
	Cams with complex profiles can be complicated to manufacture, particularly with the type of equipment available in the school workshop. However, if all that is required is to produce a single up and down motion for every revolution on the cam, a circular cam rotating about a point offset from its centre ''(i.e. eccentric)'', will often suffice.		Cams with complex profiles can be complicated to manufacture, particularly with the type of equipment available in the school workshop. However, if all that is required is to produce a single up and down motion for every revolution on the cam, a circular cam rotating about a point offset from its centre ''(i.e. eccentric)'', will often suffice.

	An [https://en.wikipedia.org/wiki/Eccentric_%28mechanism%29 '''Eccentric Cam'''] would normally provide the follower with [https://en.wikipedia.org/wiki/Simple_harmonic_motion '''Simple Harmonic Motion'''] - (this can be defined as the projection of a point on the diameter of a circle as it precesses around it with [https://en.wikipedia.org/wiki/Constant_angular_velocity '''constant angular velocity'''])''.		An [https://en.wikipedia.org/wiki/Eccentric_%28mechanism%29 '''Eccentric Cam'''] would normally provide the follower with [https://en.wikipedia.org/wiki/Simple_harmonic_motion '''Simple Harmonic Motion'''] - ''(this can be defined as the projection of a point on the diameter of a circle as it precesses around it with [https://en.wikipedia.org/wiki/Constant_angular_velocity '''constant angular velocity'''])''.

	Note that the cam follower need not just move up and down in a '''[[Types of Motion\|reciprocating]]''' motion, but it can be a lever as shown, which will produce '''[[Types of Motion\|oscillating]]''' motion.		Note that the cam follower need not just move up and down in a '''[[Types of Motion\|reciprocating]]''' motion, but it can be a lever as shown, which will produce '''[[Types of Motion\|oscillating]]''' motion.

DT Online: Corrected internal link

2015-02-12T09:14:00Z

Corrected internal link

← Older revision		Revision as of 09:14, 12 February 2015
Line 5:		Line 5:
	An [https://en.wikipedia.org/wiki/Eccentric_%28mechanism%29 '''Eccentric Cam'''] would normally provide the follower with [https://en.wikipedia.org/wiki/Simple_harmonic_motion '''Simple Harmonic Motion'''] - (this can be defined as the projection of a point on the diameter of a circle as it precesses around it with [https://en.wikipedia.org/wiki/Constant_angular_velocity '''constant angular velocity'''])''.		An [https://en.wikipedia.org/wiki/Eccentric_%28mechanism%29 '''Eccentric Cam'''] would normally provide the follower with [https://en.wikipedia.org/wiki/Simple_harmonic_motion '''Simple Harmonic Motion'''] - (this can be defined as the projection of a point on the diameter of a circle as it precesses around it with [https://en.wikipedia.org/wiki/Constant_angular_velocity '''constant angular velocity'''])''.

	Note that the cam follower need not just move up and down in a '''[[reciprocating]]''' motion, but it can be a lever as shown, which will produce '''[[oscillating]]''' motion.		Note that the cam follower need not just move up and down in a '''[[Types of Motion\|reciprocating]]''' motion, but it can be a lever as shown, which will produce '''[[Types of Motion\|oscillating]]''' motion.