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Topic: Hexapod

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	Compensating system for a hexapod - Patent 6474915
		The hexapod of claim 1 wherein the jack is substantially vertically oriented, and wherein the jack is connected to peripheral portions of the mobile plate by a connecting rod.
		The hexapod of claim 5 wherein portions of the cable extending between the jack and the return pulley are non-vertically oriented, and wherein portions of the cable extending between the return pulley and the peripheral portions of the mobile plate are substantially vertically oriented.
		The hexapod of claim 9 wherein the center axis of the hexapod is substantially horizontally oriented, and wherein the jack exerts the compensating force at a location which is vertically offset from the center axis of the hexapod.
	www.freepatentsonline.com /6474915.html (2126 words)

	Hexapod
		The hexapod is of the "six axis positioner" type, with six hydraulic struts and 12 universal joints distributed on both the base and the platform, which is the cockpit in this case.
		The use of the robot with hexapod arms enables the high precision and high forces to reach very complicated zones, mostly in the brain because the model was developed for neuro-surgery.
		Soft in the case of the hexapod means that the machine’s accuracy and repeatability are not dependent on its structural alignments.
	biotsavart.tripod.com /hexapod.htm (3310 words)

	Hexapoda (Site not responding. Last check: 2007-11-01)
		The most distinctive feature of the hexapods is the reduction in walking appendages to six, with three body segments consolidating to form the thorax, which provides much of the locomotory ability of the animals.
		Devonohexapodus bocksbergensis, a new marine hexapod from the Lower Devonian Hunsrück Slates, and the origin of Atelocerata and Hexapoda.
		Kristensen, N. The groundplan and basal diversification of the hexapods.
	tolweb.org /tree?group=Hexapoda&contgroup=Arthropoda (1193 words)

	JP Brown's Serious LEGO - Hexapod_I
		Hexapod_I was inspired by Flik, the fastest RCX walker I've seen.
		The fastest gait (walking pattern) for a hexapod is the 'alternating tripod' where the weight is supported on legs 1-4-5 for the first step, then on legs 2-3-6 for the second step, then back to legs 1-4-5 for the next step, and so on cycling between the two 'tripod' sets of legs for alternate steps.
		The advantage of this is that, once the hexapod is at its full height, little energy or time is required to shift from one set of legs to the other.
	jpbrown.i8.com /hexapod1.html (584 words)

	Manufacturing Science & Technology - Hexapod
		Besides the employment of commercially available hexapods, Sandia is involved in the research and development of next generation non-orthogonal parallel mechanisms (NOPM) for a multitude of applications.
		Potentially, a hexapod could function on a ship at sea, laid on its side, or suspended from the ceiling.
		During the summer of 1997, the installation of a commercially available hexapod was completed at the Advanced Manufacturing Processes Laboratory.
	mfgshop.sandia.gov /1400_ext_Hexapod.htm (415 words)

	Fred Delcomyn - Research - Hexapod Robotics 2
		The hexapod robot developed by the Illinois hexapod group is modeled after the American cockroach, Periplaneta americana.
		We selected this insect as a model because of its extraordinary speed and agility and because the structure and physiology of this insect are reasonably well known.
		Hexapod robot, MARK I. The robot is powered by compressed air, which enters through the tube from the left.
	www.life.uiuc.edu /delcomyn/RSRobotics2.html (699 words)

	Untitled Document
		An hexapod is a six degrees of freedom system able to move a load according to any motion law defined by a linear motion in the space and a rotation about any axis.
		The motion capability of the hexapod is amazing and more general that goniometers or standard 6 axes motion systems.
		Hexapods are used for many different applications such as: mirror positioning, X rays focusing systems...
	www.lidax.com /i_secciones/trab/02.htm (149 words)

	PI Datasheets: M-850 HEXAPOD Six-Axis Parallel-Kinematics MicroMotion Robot
		The M-850 Hexapod is of great value for any complex, high-accuracy positioning and alignment task where independent motion in six degrees of freedom is required.
		Because the six Hexapod struts and the six orthogonal coordinates (X, Y, Z,) are all interrelated, the twelve strut-end universal joints must guarantee zero backlash and zero runout.
		Hexapod motion is not defined by fixed bearings, but rather by sophisticated real-time 6-space control algorithms.
	www.physikinstrumente.de /products/prdetail.php?secid=7-16 (594 words)

	CSG Robotics Lab Hexapod Project
		The goal of the hexapod robot project is to provide a physical test-bed for developing and testing control-system architectures conforming to the principles of Perceptual Control Theory (Powers, 1973).
		The hexapod design was selected for this project because hexapods do not require complex balancing mechanisms (thus simplifying design requirements), and because it will allow me to take advantage of Richard Kennaway's hexapod computer simulation's control mechanisms.
		This is important as the hexapod will probably have two or more OOPics plus some of these other devices, and we'll need to get them all to talk to one another.
	users.ipfw.edu /abbott/pct/hexapod/HexapodProject.html (2164 words)

	Feature - Hexapod--It's Working
		Fortier refers to his hexapod as a "soft machine." However, that is not in reference to the machining center's stiffness, thrust, or other traditional descriptions of machine tool strength.
		Soft in the case of hexapods means that the machine's accuracy and repeatability are not dependent on its structural alignments.
		The hexapod has six degrees of freedom, and is very dexterous like a robot, but also offers the machine tool rigidity and accuracy generally beyond a robot's capability.
	www.mmsonline.com /articles/109702.html (1963 words)

	MIT Leg Lab Hexapod Simulation (Site not responding. Last check: 2007-11-01)
		There are no constraints on the motion of the hexapod, making it a true three dimensional robot able to move in the x, y, z, roll, pitch, and yaw directions.
		Although the hexapod is a highly non-linear, parallel mechanism, the use of virtual models allows text-book control solutions to be implemented while the robot is walking.
		The hexapod is able to trace out a number of interesting paths which only require the specification of three inputs (velocity magnitude, velocity angle, and turning rate of the body).
	www.ai.mit.edu /projects/leglab/simulations/hexapod/hexapod.html (495 words)

	hexapod
		This is my autonomous hexapod robot that I built a few years ago.
		The 6 that raise and lower the legs are Hobbico CS-72 1/4 scale and the 6 that move the legs forward and backward are several brands of standard 1/10 scale servos (all are similar the Futaba S3003).
		I originally had a Basic Stamp II on the hexapod, but it doesn't have enough I/O (16 lines) to run 12 servos and sense 12 switches directly.
	home.ctlnet.com /~robotguy67/hexapod/hexapod.htm (1030 words)

	Gran Telescopio CANARIAS (GTC) Secondary Mirror Hexapod
		The mechanism is essentially a two stage system constituted by a hexapod and a fast tip-tilt chopper taking its base on the hexapod mobile plate.
		The hexapod has an absolute accuracy better than a few microns for displacements along all directions and a resolution as good as 40 nm.
		Its function is the fine positioning of the secondary mirror in order to align it with the main telescope axis as defined by the large primary mirror.
	www.csem.ch /detailed/e_211_large_hexa.htm (156 words)

	Fred Delcomyn - Research - Hexapod Robotics 1
		There has been a great deal of interest in recent years in what has been termed biomimetic robotics, the design and construction of robots that incorporate some of the physical or functional features of walking animals.
		Robots can also be used to address the question of what role the nature of the physical plant of an animal (i.e., its physical structure) plays in the control of locomotion.
		With support from the National Science Foundation, the hexapod robot project at the University of Illinois began in 1994 as a collaborative project between FD, Narendra Ahuja, and Mark Nelson.
	www.life.uiuc.edu /delcomyn/RSRobotics.html (436 words)

	Rapid Traverse - Change Your Machine To A Hexapod
		Shops considering the purchase of a hexapod machine may find it difficult to justify investing big bucks in machine tool technology that is relatively new to the marketplace.
		Installation of the hexapod attachment is said to be so simple and fast that the attachment can be switched to other machines in the shop when need dictates.
		The hexapod attachment consists essentially of six telescoping struts that are paired around a fixed plate at one end.
	www.mmsonline.com /articles/0204rt1.html (658 words)

	[ medical intelligence ] : HexaPOD RTC
		Large safety margins have to be applied to compensate for uncertainties arising from the mechanical inaccuracies of treatment components, patient setup and tumor motion".
		The HexaPOD RT CouchTOP features the first and unique fully robotic patient positioning platform with six degrees of freedom to correct for misalignments detected by state-of-the-art image guidance systems, therefore closing the gap in the 6D-chain of IGRT localization and patient positioning.
		Then, the HexaPOD automatically drives the patient to the exact room isocenter and a visual check can be made using the alignment of the laser lines on the reference frame.
	www.medical-intelligence.com /index.php?id=30 (304 words)

	hemanth online - Hexapod - ADAMS
		In the last chapter a methodology was devised to mathematically model and evaluate a 6-3 Stewart Platform based Hexapod.
		MSS is the study of the motion of mechanical systems caused by external forces and excitations that act on the system.
		Recall that Hexapod is a Fully Parallel Manipulator with multiple closed-chain loops.
	www.angelfire.com /nm/hemanthonline/Slide31a.html (482 words)

	SYSTEM AND METHOD FOR CALIBRATING A HEXAPOD POSITIONING DEVICE (WO9928097A1)
		The calibration system 100 comprises a hexapod machining center 110 connected to a series of equipment enclosures 120 by way of a power and control cable loop 125.
		The gas springs 160 affixed to the feet 170 of the hexapod machining center 110 comprise one embodiment of a vibration isolation system, which will be explained in more detail below.
		The hexapod machining center 110 includes a base or lower platform 200 connected to an upper or tool platform 205 by an actuator mechanism 210.
	www.delphion.com /details?pn=WO09928097A1 (462 words)

	Amazon.com: hexapod (Site not responding. Last check: 2007-11-01)
		Insect-inspired, actively compliant robotic hexapod: (Dissertation) by William Anthony Lewinger (April 1, 2006)
		The carboniferous Hexapod insects of Great Britain (Memoirs of the Boston Society of Natural History) (Memoirs of the Boston Society of Natural History) by Samuel Hubbard Scudder (Unknown Binding - Jan 1, 1883)
		Nano Precison Hexapod and Tripod -- Alio Industries (patented) parallel kinematic 3 axis and 6 axis robotic systems for manufacturing processes of products requiring nanometer resolution and repeatability.
	www.amazon.com /s?ie=UTF8&search-alias=aps&keywords=hexapod&page=1 (297 words)

	ESA - Human Spaceflight and Exploration - International Space Station - Development of Hexapod reaches completion (Site not responding. Last check: 2007-11-01)
		The Hexapod is one of the elements developed by ESA for NASA in return for ISS utilisation rights prior to the launch of the ESA Columbus Laboratory.
		The flight unit of the Hexapod weighs 116 kg and consists of the Electronic Unit and the Mechanical Assembly.
		The Hexapod has a pointing accuracy of ± 0.025 of a degree, a pointing stability of 0.0025 deg/sec, a pointing range equivalent to an 8 deg cone, and with an angular pointing rate of at least 1.2 deg/sec.
	www.esrin.esa.it /esaHS/SEM2LHVLWFE_iss_0.html (650 words)

	Hexapod Simulation: Abstracts from Publications (Site not responding. Last check: 2007-11-01)
		A simulated hexapod robot was developed to test the proposed control method.
		This thesis also demonstrates the simplicity and ease of this control method by using it to control a simulated walking hexapod.
		Although the hexapod is a highly non-linear, parallel mechanism, the virtual models allowed text-book control solutions to be used while the robot was walking.
	www.ai.mit.edu /projects/leglab/simulations/hexapod/hex_abstracts.html (692 words)

	CrustCrawler - HexCrawler (Hexapod Robot)
		At CrustCrawler, we believe that a hexapod should have some key material and construction features to be a truly useful and robust robotic platform.
		Having the ability to expand and add lots of additional electronics and sensors to your hexapod is a key component of robotic experimentation and development.
		Unlike hexapods made from heavy, non-adjustable, plastics and other materials, the HexCrawler's legs are fully adjustable.
	www.crustcrawler.com /products/hexcrawler.php?prod=1 (1177 words)

	HEXAPOD
		Although HEXAPOD looks like an insect it will walk like a dog with dynamic locomotion.
		The robot's locomotion and direction will be controlled by shifting my body weight and turning my torso.
		HEXAPOD is 5 metres in leg-spread and weighs approximately 250 kgms.
	www.stelarc.va.com.au /hexapod/hexapod1.htm (122 words)

	Hexapod Projerct Page
		I was contiplating lower cost methods of implementation and it crossed my mind that I could really have fun with the shape of the robot.
		If the sheet of paper isn't blank it will see if there is a maze on it, if so, it will try to solve it, and then trace out the path with a pointer.
		Another requirement of this Hexapod is that it not need any complex machining (Anything needing a milling machine, lathe, etc.), or welding.
	www.nerdvest.com /robotics/hexapod.html (4007 words)

	How to Specify a Hexapod
		The primary consideration is whether the motion or vibration of interest is in more than one or possibly two axes.
		If it isn’t, a hexapod may not be appropriate.
		A further distinction should be drawn between positioning where the hexapod is part of the main system of interest, and motion simulation where the hexapod is used mainly to create a motion environment for testing another product.
	www.csaengineering.com /hex/hexapods_specify.shtml (253 words)

	Hexapod, Robotics, Parallel Kinematics, Nanopositioning, Micropositioning
		The above comparision clearly shows the advantages of the low-inertia hexapod approach over a classical serial kinematics system.
		Hexapod for Secondary Mirror Control in SOFIA telescope
		Hexapod as Mirror Manipulator in the SRRC Beamline
	www.hexapods.net /hexapod.htm (274 words)

	Sparky's Hexapod
		I've always wanted a Hexapod, ever since I laid eyes on one of those Lynxmotion jobbies I thought they were so cool!
		I had heard that some guys were working on a BEAM (analog) version but I waited and waited and there were no results published.
		Wilf published a Beam Hexapod circuit at the end of '00, and I decided to give it a try at the end of '01!
	members.tripod.com /sparkybots/hexapod.htm (326 words)

	Hexapod with real-time controller under LabVIEW
		The "Active Steering & Structural Damping Interface" consists of a stiff active six degree-of-freedom hexapod (Steward platform with cubic architecture).
		Each leg consists of a linear piezoelectric actuator, a collocated force sensor and flexible tips for the connection to the base plates.
		The hexapod can be used as damping interface connecting arbitrary structures, microvibration isolator, or high precision pointing mechanism.
	www.micromega-dynamics.com /hexapod_labview.htm (231 words)

	Hexapod, Robotics, Parallel Kinematics, Nanopositioning, Micropositioning
		University of Bremen Study uses PKM Hexapod for Photothermics / Non-Destructive Testing
		Hexapod Parallel-Kinematik in der Industriellen Prüftechnik, Univ. Bremen, Germany
		Hexapods Piezo Nanopositioning Catalog Piezo Nano-Positioning and Parallel Kinematics PI USA
	www.hexapods.net (315 words)

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