Hexapod robot - Revision history

Admin: /* Specs */

2014-12-22T02:41:03Z

Specs

← Older revision		Revision as of 02:41, 22 December 2014
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	Backbone joint rotating in a horizontal axis		Backbone joint rotating in a horizontal axis

			==Assembly==

			Here you can download the [http://www.geeetech.com/Documents/Assembly_Manual_of__Hexypider.pdf Assembly manual of hexypider].

	=List of robots=		=List of robots=

Admin: /* Hexypider= */

2014-12-18T02:19:59Z

Hexypider=

← Older revision		Revision as of 02:19, 18 December 2014
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	Insect gaits are usually obtained by two approaches: the centralized and the decentralized control architectures. Centralized controllers directly specify transitions of all legs, whereas in decentralized architectures, six nodes (legs) are connected in a parallel network; gaits arise by the interaction between neighbouring legs.		Insect gaits are usually obtained by two approaches: the centralized and the decentralized control architectures. Centralized controllers directly specify transitions of all legs, whereas in decentralized architectures, six nodes (legs) are connected in a parallel network; gaits arise by the interaction between neighbouring legs.

	=Hexypider==		=Hexypider=

	[[File:Hexypider 1 .jpg\|500px\|]]		[[File:Hexypider 1 .jpg\|500px\|]]
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	==Features==		==Features==
	Acrylic structure, light and solid		Acrylic structure, light and solid

	6 Legs with 2 Servos for each		6 Legs with 2 Servos for each

	Easy and Quick Assembly		Easy and Quick Assembly

	High mobility		High mobility

	Suitable for students and adults alike		Suitable for students and adults alike

	==Specs==		==Specs==

	Dimension: 9 x 20 x 8.5 cm (L x B x H)		Dimension: 9 x 20 x 8.5 cm (L x B x H)

	Weight: 157g		Weight: 157g

	Material: Imported high-quality laser cutting acrylic		Material: Imported high-quality laser cutting acrylic

	6 Legs with 2 degrees of freedom of each leg		6 Legs with 2 degrees of freedom of each leg

	Active tail rotating in horizontal and vertical axis		Active tail rotating in horizontal and vertical axis

	Compatible with 18 x 9g servos		Compatible with 18 x 9g servos

	Backbone joint rotating in a horizontal axis		Backbone joint rotating in a horizontal axis



	=List of robots=		=List of robots=

Admin at 02:19, 18 December 2014

2014-12-18T02:19:11Z

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 A hexapod robot is a mechanical vehicle that walks on six legs. Since a robot can be statically stable on three or more legs, a hexapod robot has a great deal of flexibility in how it can move. If legs become disabled, the robot may still be able to walk. Furthermore, not all of the robot's legs are needed for stability; other legs are free to reach new foot placements or manipulate a payload.
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 Insect gaits are usually obtained by two approaches: the centralized and the decentralized control architectures. Centralized controllers directly specify transitions of all legs, whereas in decentralized architectures, six nodes (legs) are connected in a parallel network; gaits arise by the interaction between neighbouring legs.
 =List of robots=

Admin: /* List of robots */

2014-12-11T07:21:46Z

List of robots

← Older revision		Revision as of 07:21, 11 December 2014
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	=List of robots=		=List of robots=
	[http://www.manoonpong.com/AMOSWD06.html Autonomous walking machine AMOS]		[http://www.manoonpong.com/AMOSWD06.html Autonomous walking machine AMOS]

			[http://www.manoonpong.com/AMOSII.html AMOSII]

	[http://hexapod.lindquists.se/ the Hexapod Walker]		[http://hexapod.lindquists.se/ the Hexapod Walker]
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	[http://arcbotics.com/products/hexy hexy ]		[http://arcbotics.com/products/hexy hexy ]

			=where to get=

			[http://www.geeetech.com/6-feet-spider-robot-12dof-framer-battery-box-p-806.html here] you can get a kit for a hexapod

Admin: Created page with "A hexapod robot is a mechanical vehicle that walks on six legs. Since a robot can be statically stable on three or more legs, a hexapod robot has a great deal of flexibility i..."

2014-12-11T07:06:44Z

Created page with "A hexapod robot is a mechanical vehicle that walks on six legs. Since a robot can be statically stable on three or more legs, a hexapod robot has a great deal of flexibility i..."

New page

A hexapod robot is a mechanical vehicle that walks on six legs. Since a robot can be statically stable on three or more legs, a hexapod robot has a great deal of flexibility in how it can move. If legs become disabled, the robot may still be able to walk. Furthermore, not all of the robot's legs are needed for stability; other legs are free to reach new foot placements or manipulate a payload.

Many hexapod robots are biologically inspired by Hexapoda locomotion. Hexapods may be used to test biological theories about insect locomotion, motor control, and neurobiology.

==Designs==
Hexapod designs vary in leg arrangement. Insect-inspired robots are typically laterally symmetric, such as the RiSE robot at Carnegie Mellon.A radially symmetric hexapod is ATHLETE (All-Terrain Hex-Legged Extra-Terrestrial Explorer) robot at JPL.

Typically, individual legs range from two to six degrees of freedom. Hexapod feet are typically pointed, but can also be tipped with adhesive material to help climb walls or wheels so the robot can drive quickly when the ground is flat.

==Locomotion==
Most often, hexapods are controlled by gaits, which allow the robot to move forward, turn, and perhaps side-step. Some of the most common gaits are as follows:

Alternating tripod: 3 legs on the ground at a time.
*Quadruped.

*Crawl: move just one leg at a time.

*Gaits for hexapods are often stable, even in slightly rocky and uneven terrain.

Motion may also be nongaited, which means the sequence of leg motions is not fixed, but rather chosen by the computer in response to the sensed environment. This may be most helpful in very rocky terrain, but existing techniques for motion planning are computationally expensive.

===Types of locomotion===
*Wheeled
In terms of energy efficiency on flat surfaces, wheeled robots are the most efficient. This is due to the fact that an ideal rolling (but not slipping) wheel loses no energy. A wheel rolling at a given velocity needs no input to maintain its motion. This is in contrast to legged robots which suffer an impact with the ground at heelstrike and lose energy as a result.

There are many different types of wheeled robots, the most common being the Reed Shepps type and the unicycle type. The major concern in the motion planning of wheeled robots are the holonomic constraints that the robot is subject to. These are decided by the type of wheels, number of wheels and the direction of the axes of rotation of the wheels.

**Examples
[http://en.wikipedia.org/wiki/IRobot iRobot's] Roomba

[http://www.cisco-eagle.com/catalog/c-4173-robotic-industrial-trucks.aspx Cisco's Unmanned Fork Truck]

*Walking

==Biologically inspired==
Insects are chosen as models because their nervous system are simpler than other animal species. Also, complex behaviours can be attributed to just a few neurons and the pathway between sensory input and motor output is relatively shorter. Insects' walking behaviour and neural architecture are used to improve robot locomotion. Alternatively, biologists can use hexapod robots for testing different hypotheses.

Biologically inspired hexapod robots largely depend on the insect species used as a model. The cockroach and the stick insect are the two most commonly used insect species; both have been ethologically and neurophysiologically extensively studied. At present no complete nervous system is known, therefore, models usually combine different insect models, including those of other insects.

Insect gaits are usually obtained by two approaches: the centralized and the decentralized control architectures. Centralized controllers directly specify transitions of all legs, whereas in decentralized architectures, six nodes (legs) are connected in a parallel network; gaits arise by the interaction between neighbouring legs.

=List of robots=
[http://www.manoonpong.com/AMOSWD06.html Autonomous walking machine AMOS]

[http://hexapod.lindquists.se/ the Hexapod Walker]

[http://en.wikipedia.org/wiki/Hexbug Hexbug]

[http://arcbotics.com/products/hexy hexy ]