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AUV Combines Propulsion Schemes Until recently, there have been essentially two types of autonomous underwater vehicles AUVs : relatively fast-moving, propeller-driven units that can carry a good-sized load of instruments but are limited to stints of only a few days' operation; and "gliders" which can operate for months at a time but are slow and carry a limited payload. But a new seabot called Tethys combines the best of both these worlds. In high-speed mode, it can travel at about 2. It can also drop into hover mode, allowing it to remain in operation for a matter of weeks. Back in October, the first one was successfully tested in Monterey Bay, equipped to study phytoplankton blooms.

It is hoped that the design will prove to be inexpensive enough for wide adoption in a variety of seagoing research and monitoring. The original Tethys, by the way, was a Greek aquatic goddess, daughter of Uranus and Gaia. She was both sister and wife of Oceanus, but we won't worry about that for now. You can create a universal jamming robotic g ripper hand that can pick up anything.

With multi-fingered humanoid hand research, there are challenges such as how to actuate the many finger joints, how to apply force sensing so delicate objects can be held firmly without breaking or damaging them, and how to address the great mass of algorithms and computations necessary to calculate the force applied to each object by each finger. As such, fingered hands are extremely intricate due to hardware complexities, actuation complexities, and the need for expansive software-based intelligence to perform the sub-tasks that lead to gripping and lifting with fingers.

Roboticists have invested themselves heavily to create universal gripping hands — hands that can pick up anything — using this model. On the other hand, researchers and roboticists at Cornell University, the University of Chicago, and iRobot Corporation, have applied mechanical engineering and particle science to the complex problem of a universal robot gripper. With their granular gripper, the mass of latex and coffee grounds surrounds and presses an object to get its grip, then a vacuum is created to harden the coffee grounds and latex in the new shape, securing the gripper's control of the item.

Turn Up the Jams Researchers based the universal jamming gripper on a jamming phase: "If a collection of granular material is loosely packed, it can flow like a liquid. If, instead, the granular material is more densely packed, it behaves like a solid, and we call this the jammed state," explains Eric Brown, postdoctoral scholar from the University of Chicago.

The difference in density between the two states is very small. This is analogous to the sharp phase transition between water and ice if the temperature is reduced," Brown illustrates. With the surface of the gripper covering only one- fourth of the surface sometimes less of an object, the attending vacuum can tighten the hand on or around a cup, pen, screwdriver, or most anything.

The hand comes up against the object, taking shape around it. Once the hand is in place, the vacuum or suction is applied and the grasp of the gripper is complete. We did some tests on the tolerance to positioning and found the gripper had no loss of gripping capabilities if it was off target by as much as a quarter of the gripper size," says Brown. For other applications like assembly line or manually operated grippers, no sensing may be necessary at all," Brown notes.

Adjust the Volume Slightly By decreasing the overall volume of the balloon by as little as one half of one percent, the roboticists can turn the malleable balloon into a rigid form around part of an object that is enough to grip and lift it up. Just a small amount of vacuum is enough to turn the soft, pliable latex and coffee grounds into a rigid confine about the item's surface.

The gripper can hold and carry multiple items that are in close proximity to one another, as well. A pump known as a Venturi aspirator sucks the air out of the gripper. A red tube runs from the gripper to the pump to accomplish this. Amazing how much roboticists can do with simple components. We focused on the gripper because different pumps could be used for different applications," says Brown. The connection to the pump requires a filter to prevent the coffee grounds from leaving the gripper.

The scientists attached the gripper to a robotic arm in a fixed position. The arm selected for the gripper is a CRS A model. We only performed tests to evaluate the grip performance, and not to evaluate characteristics with a specific arm, as different arms could be chosen for different applications," says Brown. The gripper can lift items many times its own weight and size. This is due in part to the geometry involved when the gripper presses so firmly against the object's surface. It is also because of the friction between the gripper and the object.

This is similar to someone palming a basketball with one hand," explains Brown. Apply Here This balloon and coffee ground end effector will be ideal in applications where the robot arm and hand have to pick up multiple items together, especially items which the robot has not previously seen.

Specific scenarios include military robots for removing bombs, robot maids or butlers for picking up items in the home, and picking parts in industrial settings where items on a conveyor belt are not precisely positioned. Examples of such applications include hazardous materials work, remote controlled robots for search and rescue missions, prosthetics, and working under water. As intelligent as it is practical, the hand holds a pen and writes on a surface.

The researchers intended this first work on the gripper to establish a foundation for a jamming gripper and to create a model of gripping characteristics for such an end effector. The model will help roboticists design future grippers enhanced for efficiency for specific applications under specific conditions.

Conclusion With all the complexities involved with a humanoid hand, it's amazing how a simple yet out of the box answer may be the right one after all. The legs use a mechanical advantage system to maximize payJoad even when using inexpensive servos. This is 2DOF Hexapod, done right! Sony PS2 game controller port. Buttered Speaker. Timed, or Group moves. Servo and Logic power inputs. No better SSC value anywhere! We also carry motors, wheels, hubs, batteries, chargers, servos, sensors, RC radios, pillow blocks, hardware, etc! Visit our huge website to see our complete line of robots, electronics, and mechanical components.

Images represent a fraction of what can be made! From software algorithms to material selection, Mr. Roboto strives to meet you where you are - and what more would you expect from a complex service droid? Welcome to 1! It's a new year with even more amazing advances in robotics which — for some reason — no one but us roboteers ever seem to know about! No matter. I guess that means there are just that many more people out there to amaze with our hobby!

As I write this, there is a lot of buzz about the Microsoft Xbox add-on "Kinect" sensor which was hacked within a week of its release. It can be used to do 3D mapping of its environment as well as all the cool stuff that an Xbox does with it. Another sophisticated sensor to add to the toolbox! Keep watching those hacker blogs! Figure I. Gyro breakout board. JWv I want to know that when my robot is falling down, all I need is an accelerometer, right?

My robot is just a basic walker that uses servos to y help you can offer would be great! Kevin, well, not really. It is true that an accelerometer will allow you to detect your robot tilting over. Unfortunately, as the name "accelerometer" implies, the device measures acceleration.

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It can't distinguish between a change in attitude measured by the change in the effects of gravity, in your robot, or the moment-to-moment accelerations caused by your robot simply moving. You will need one more device to help you with your "tilt" sensor: a gyroscope, or "gyro" for short.

The accelerometer can measure a change in the effects of gravity which can indicate a tilt, but to make sure that you are tilting and the measurement isn't just your robot shambling, you can use the output of your gyro to confirm the deduction. A gyro will measure a change in rotation around a given axis.

So, if you orient your gyro so that its axis is perpendicular to the axis of the tilt you are interested in this tends to be the front-to-back vector , then when your accelerometer sees a change that the gyro confirms you can measure the two of them to determine how much change there is and attempt an adequate amount of 14 SERVO Since I've been in a "code writing" kind of mood these last few months, I've put together an example piece of code that will read the angle reported by an RC aircraft hobby gyro.

I know that you can get gyros that read out in just plain analog signals like the Pololu LISYAL Figure 1 these days, but I was convinced that the RC gyros have better stability and drift less, so I wanted to try them out. This means that I need to read a pulse width. Something new! We've seen how to generate a servo pulse using an interrupt in previous Roboto columns, now let's learn how to read a pulse width on an Atmel ATmega chip. However, the PG-. The PG has a traditional hobby servo connection as its input and another traditional hobby servo connector for an output.

If we want to measure our rotational change, we need to measure the pulse width coming out of the gyro. I'm going to use my typical ATmega board with my usual boilerplate setup code to demonstrate how to measure the PG output. The fastest way to measure a pulse is to use hardware that is built into a microcontroller rather than trying to measure something in a code loop. A code loop can measure what we want, but everything else that we are doing in our robot will stop while we are in that code loop; we want to be able to measure these changes fast, so we use an interrupt based Input Compare module attached to Tinner 1.

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Finally, I chose the full speed clock bits so that the full scale reading in 16 bits equals 4. In avr-gcc, there is a macro called ISRQ which takes the interrupt vector as an input; the documentation for avr-gcc tells the vector names, but you can just as easily find the interrupt vector name by looking at and using the Atmel ATmega datasheet in section Our ISR needs to handle both the interrupt for the rising edge of the pulse and the interrupt for the falling edge of the servo pulse.

You will notice that on the rising edge I clear the bit TCNT register; this allows our timing to start at zero. I then say that the next interrupt will occur on the falling edge by clearing the ICES1 bit. When the servo signal drops, the else clause of the ISR is used. Gyro readings. I then flip the ICES1 bit to again interrupt on a rising edge and the cycle starts over again. When you use an ISR to set or change a variable in your program, you need to let the compiler know this.

This is because an ISR is never called from within your program so the compiler does not know when the variables that the ISR changes actually change. We do this by using the volatile qualifier to the variable definition as shown in Listing 3. Because of the nature of these "volatile" variables, they are global in scope.

I can see you "big iron" programmers cringing at the "global" definition, but this is embedded programming. Many of the rules change "down here! Now let's look at the main code where we actually use the value of the gyro that we are measuring.

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In Listing 4, we see the very short code section that determines the pulse value has changed and prints it out. Notice that the code just assumes that the value is there in the pulse variable. Our ISR handles the dirty work and our code just uses the value. This loop tracks the previous pulse value and only prints something when it changes significantly. This keeps our display from filling up and blasting by us, and makes the changes easier to detect. Speaking of which, Figure 3 shows my terminal window. I am a hard-core Mac user, so if you are a Windows user, Figure 4.

Test setup. You'll have to tweak your code to put out the correct line- terminating character to get a single reading on a single line with your favorite terminal emulator. Notice the readings. They range from to These are timer clocks in an Arduino's 16 MHz system. With each clock being I was rotating the gyro back and forth to get these readings. Figure 4 shows my setup. I generate a servo pulse of 1. If you are using a gyro similar to that shown in Figure 1, you could still use an interrupt to handle the readings. The same holds true for reading your accelerometer, if it's like the one shown in Figure 5.

Technology keeps changing and it constantly amazes me that between the time I buy a new widget and the time I use it, it's obsolete! Roboto as rcgyro. As always, if you have a question for Mr. Roboto, drop me a line at roboto servomaqazine. Have fun and keep building robots! Three-axis accelerQmeter. Is your local school or robot group planning a contest?

Send an email to steve ncc. Be sure to include the date and location of your contest. If you have a website with contest info, send along the URL as well, so we can tell everyone else about it. For last-minute updates and changes, you can always find the most recent version of the Robot Competition FAQ at Robots. Worth, TX In this event, autonomous Micromouse maze running for bots 25 cm x 25 cm. Cash prizes and trophies. The robot with the shortest time wins.

See website for more information. Much Much More! This USB telemetry receiver lets you wirelessly download and display essential telemetry information on your PC without cables. This audible telemetry readout system is designed to fit on the handle of the Aurora 9, Optic 6, and Optic 6 Sport 2. When you fly with Hitec's telemetric Optima 7 or Optima 9 receivers, the system announces your model's data via a built-in speaker or optional earphones.

The 2CAN is the backbone of the Cross-link system. It provides a gateway between Ethernet and CAN that allows viewing of critical system information such as current, voltage, sensor values, position, and PID values in an integrated web dash that may be accessed from a web browser. Boot time is in mS because the 2CAN firmware is embedded and does not suffer from the overhead of an operating system. The 2CAN interfaces to the router via Ethernet to provide wireless control of your robot.

The router has plenty of bandwidth to control your robot, view the 2CAN web dash, and view live web cam feeds. The components may be purchased individually, as well.

Software and firmware are free downloads. For further information, please contact: Cross the Road Electronics Website: www. Based on their successful, Weta, God of Ugly Things, it has pattern routed and jig drilled UHMW side walls and armor combined with watercut aluminum panels. Also available is a beater bar assembly for use with the chassis.

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With four supported high-level interfaces — USB for direct connection to a computer, TTL serial for use with embedded systems, RC hobby servo pulses for use as RC controlled electronic speed control ESC , and analog voltages for use with a potentiometer or analog joystick — and a wide array of configurable settings, these devices simplify controlling motors in a variety of projects.

Units can be paired to enable mixed RC or analog control of differential-drive robots, and they can be daisy-chained with additional Pololu servo and motor controllers on a single serial line. A free configuration program available for Windows and Linux allows for quick controller configuration over USB no more DIP switches or jumpers and simplifies initial testing.

Controller features include: acceleration and deceleration limits to decrease mechanical stress on the system; optional safety controls to avoid unexpectedly powering the motor; a wizard for automatic RC and analog input calibration; and support for limit switches. The controller versions offer a wide operating voltage range up to 5. For further information, please contact: Pololu Corporation E.

Patrick Ln. By using this PCB design service, customers can now shave two days from the standard three-day lead time. Customers are increasingly using multilayer board designs during the initial prototyping phase to dramatically shorten design-time and save project dollars. This technique works particularly well when high-speed design work may be a factor in the actual schematic. This improved lead-time also comes with enhanced DFM rules which reduces the risk of design mistakes.

When a prototype is meant to prove a concept or demonstrate a solution, adding layers to the design isn't that risky; risk it mostly a factor when engineers design on the border of the fabricator's limitations. This service now allows designers the ability to optimize their time by saving the 'tight-routing' elements for when prototypes become production ready.

This equates to fewer prototype spins which consequently means reduced costs on PCB components, assembly, and labor. For further information, please contact: Sunstone Circuits Website: www. Berry 23 Affordable 2. Marco's 18V, and 24V. If it gets very hot have any clue about its even without loads, you're characteristics, you can follow probably over the nominal these steps: voltage, so reduce its value. If is a technique used in combat there are only two wires such as the 48V Etek powered connecting it, there is a good at 96V.

The 24V Magmotors chance it is DC. Otherwise, it are exceptions. They are already could be an AC, brushless, or optimized for this voltage, step motor. Even so, the current should be limited in resistance between the this case. However, it is always a good idea to measure it at the working voltage. If you have an optical tachometer which uses strobe lights, such as the one in Figure 1 , you can also measure the maximum no-load motor speed co n ojoad- A cheaper option is to attach a small spool to the motor shaft, and to count how long it takes for it to roll up.

For instance, take meters or 30 feet of nylon thread. Attach the motor shaft to a vise grip, hold both the motor and the vise grip well, and connect the battery. Be careful because the torque can be large. Also, take care not to dent the motor body while holding it for instance, with a C-clamp as shown in Figure 2. Repeat the procedure above, but supporting one end of the vise grip by a scale or spring dynamometer with the vise grip in the horizontal position; see Figure 2.

Then, measure the difference between the weights with the motor stalled and with it turned off, and multiply this value by the lever arm of the vise grip to obtain the maximum torque of the motor, x stal. For instance, if the scale reads 0. Because x c. This is a redundancy check that reduces the measurement errors. If you weren't able to measure co no j oad , there is no problem.

This worked well enough, but the transmitters TX and receivers RX for PCM were both expensive, and the receivers were both bulky and not particularly reliable under combat conditions. The main problem, however, was the limited rdable 2. The arrival of the Spektrum DX6 changed all that. It uses 2. This removed — in a stroke — many of the radio concerns at events. Organizers no longer had to worry about competitors interfering with each other or with other RC sets being used nearby, affecting safe control of the robots.

Competitors also no longer had to be concerned about being on the same channel as their opponent and perhaps being forced to make last SERVO They also don't have to worry about getting the appropriate frequency clip to be able to test their bot. As an added bonus, the 2. Radio reception in the bot was also vastly improved and less susceptible to interference from the rest of the bot's electronics. Events now commonly specify that 2. However, a new range of very cheap 2. The radios are sold under a number of brands and with varying complexity, but the one I will be describing is probably one of the cheapest to buy that has all the functions that one would normally use in combat.

The incredibly low price does come with a couple of drawbacks. The first is that it does not have a rechargeable battery or charger, so you'll need to buy eight AA alkaline batteries for it. Finally, the radio comes without a manual so you need to go to the Internet to download this and a driver and setup program.

These are all available for download from the Team Rolling Thunder website at www. The receiver comes in two sections; the second smaller part is a second antenna. I have found reception to be fine without this second antenna and so I remove it by unplugging it from the main receiver body. Binding the RX The first task after adding the eight AA cells to the radio is to bind the receiver to the transmitter.

This means that this receiver will only work with this transmitter until such time as it is rebound to another transmitter. You can, however, bind multiple receivers to any one transmitter. The procedure is as follows: 1. First, make sure the TX is switched off. Release the "bind range test" button on the TX. Remove the binding lead from the RX. You can now test the TX by plugging in some spare servos to the RX and seeing if they respond to the TX stick movements. Be aware that channel allocations and responses may not be what you expect so do NOT connect the RX to your bot's weapon or drive motors at this time.

The required installation program can be found on my website at www. The drivers installed without issue on my computer running Windows XP. First, you must install the program t6config. Again, you can download that from my website. The install program must use a Chinese character set my computer doesn't have since it displays some unintelligable icons, but the program installs without needing user intervention at that point, so this doesn't present a problem. A T6config icon is added to your desktop. Power-up your computer. Switch on your TX. Launch the T6Config program on your computer.

You should get a screen similar to that in Figure 3. Click on the button marked "Setting" and a small window will pop up as shown in Figure 4. If it is the right port when you move the sticks on the TX, the green bars will move in response. If they don't, then repeat step 7 and choose another COM port until they do. This is where I ran into a problem. No matter what COM port I tried, the bars would not move. I tried a different TX I had purchased four and a different USB cable I had a couple , and finally tried it out on two other computers to no avail.

I researched online but could not find anyone who had the same problem. Finally, in desperation, I tried plugging it into the powered USB hub I used on one of the computers and it worked immediately!

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I suspect that the power available from some USB ports is insufficient to correctly power the cable link, and the powered USB hub had a higher voltage or current capacity and allowed correct operation. It came with a USB connection cable and a small transformer to power it. You can get hubs that are not separately powered but I doubt they would work. Click on the "GetUser" button in T6config. This uploads the default settings from the TX. Now, click on the "save" button to save the default settings onto your PC. Save the file somewhere that you will be able to find it again.

In order to get the right hand stick on the usual channels three and four , you click on the "Mode" button as in Figure 7 and choose "Model 3" from the pop-up menu. You can reverse any of the channels by selecting "reverse" Figure 8 and selecting or deselecting as required. Dual rating is a little more complex. First, you must select what channels you want to dual rate by clicking on the DR button Figure 9 and changing the values for DR ON and DR OFF; 1 00 and 1 8 worked well on Channel 4 in my bot hockey robots to calm down the steering response.

Set all other channels those that do not require dual rating to and Now, you have to select which switch is used to operate this function. This will set the switch at the top right of the TX to switch between the rates. The values shown worked well for my bots. Similarly, the servo end points and sub trims can be set using the buttons as marked. Click on "GetUser" and check that it has saved to the TX, as well. If it has not, then open the saved file using the "Open" button. The settings should now be downloaded to the TX.

You can download this and then open it using TConfig to give you a start in setting up your own bot. You can now plug the drive motor ESCs into RX Channels 3 and 4 ensure your weapon blade or drive belt is removed for initial testing. Power-up your bot and see how the bot responds to the controls. You may have to swap the ESCs around and swap the drive motor leads to get everything to run in the correct direction.

If necessary, reattach the TX to the computer as before and change your configuration as required reverse servos, tune dual rate settings, etc. Remember also that unless you have a laptop, you cannot change the TX settings at a competition, so make sure it's right before you go!

Also, all your bots must use the same settings. If you plan to use the TX a lot, then it's probably worthwhile to get a rechargeable TX pack. While setting up these cheaper 2. A wrangler's job is not an easy one. You have to control the loading and unloading of the robots into the arena, control the power-up and power-down sequence of the robots, plus — when needed — enter the arena and SERVO Wranglers also put out actual fires that can be electrical, chemical, or other combustible materials in nature. Over the years, many fires have occurred, usually because of electrical shorts or spilled fuel.

Most of the time, electrical fires can be put out by simply turning off the main power switch on the robot to stop the flow of current from the batteries. These types of batteries tend to fail in relatively non-spectacular ways. They tend to short themselves out quickly or blow open their internal connections, then die. They are easily removed, extinguished, and properly discarded. So, it's pretty rare that we ever even use a fire extinguisher. Recently, builders have been using a new, more powerful battery type based on Lithium Polymer or Lithium-Ion chemistries.

Originally, these batteries were used in mainly small combat robots lb , mostly because of their costs. Now that has changed, and the larger robots lb are using them and in much larger quantities. In small robots, there may be packs providing amp-hours capacity, but in larger robots there may be over 20 amp-hours of capacity using multiple packs in parallel. Lithium Polymer battery technology is really amazing. It provides a very high energy density by weight compared to all other battery types used in combat robots.

One of the reasons for this is that unlike most cells, they do not have a strong metal or plastic case to protect the cells from external damage. Because they are both lightweight and less bulky, they make the builder's job easier when looking for ways to fit them in the robot. Of course, their construction also makes them more fragile than the other types of cells.

Lithium Polymers have some other characteristics that differ from the older battery types. They are much more sensitive to voltage imbalances between individual cells, voltage differences between cell packs, and excess current loads during discharge. They also tend to run hotter under load and when charging. In combat, robotics machines are constantly subjected to very high impact forces and severe mechanical damage. It's not uncommon to see the armor torn off the robots and internal parts exposed or torn up including the battery packs.

Lithium Polymer batteries cannot handle physical damage and will likely catch fire or produce huge volumes of smoke once their lightweight packaging is breached. Once they become damaged, they may continue to burn, smoke, or even re-ignite until their internal energy is depleted. It should also be mentioned that excessively high current draws caused by stalled electric motors, pinched wire, or other types of short circuits may also cause this problem.

Sewer Snake vs. The multibot consisted of a large approximately lb robot called Death with a drum spinner weapon and a smaller, very formidable 50 lb robot called Taxes using a titanium wedge shaped body. At about 30 seconds into the three minute match, Taxes was hit by his teammate's spinning weapon on its right rear corner; its titanium armor was breached. One of the 5. Usually, this is a death sign for a combat robot, but Taxes kept fighting as the smoke began to fill the arena. The amazing power demonstrated from this robot's six horsepower drive train and its battery technology was mesmerizing and entertaining.

Eventually, the battery pack actually caught fire, and yet Taxes kept fighting — even carrying a lb robot on its back. The fire then subsided for several seconds but the smoke kept pouring out of the robot. In about another minute, the robot got stuck under the arena wall and then it caught fire again. The builder asked for an "unstick. Fan-cool this left me and the event organizers Stuplich. When combat day. A lapping sides no butt seams. C 1, deg. F which is couple of minutes later, 1 also briefly Allow for a 'chimney' through the more than enough to ignite most entered the arena and unstuck the middle of the packs and plan for combustible materials.

It If you have a multi-cell pack, then causing secondary fires, or should be noted that both the arena make sure to orient the packs so propagation and failure from one and the building had ventilation that the most likely impact blows pack to another inside of the fans. After several minutes, the are along the 'length' of the pack. The the robot. For the minutes while the smoke cleared. For example, in Taxes, there extinguished with a C0 2 or dry builders of Taxes, it was determined were two 5, mAh packs, chemical ABC extinguisher, although that probably the physical damage amps continuous, amps burst.

There are commercial fire eventually burned away the added maximum continuous draw was extinguishers available just for this fire resistant foam protecting the amps. This required two type of battery available using Ansul pack, and then the one next to it. There is also a copper This caused the second pack's capability was amps. Don't be powder. It's been proven that just packaging to fail and it ignited and tempted to violate this rule.

It was also LiPoly's are small and light so you sand works really well. In It is not recommended to designed for use with Li-poly Death, there were four of those pour water on the batteries if the batteries but they were added for packs. There were also four speed case has been breached. This this event. This started some controllers: two sets for a actually varies for different discussion on the Robot Fighting maximum of 80 amps and two battery chemistries but as a rule of League forum about better ways of sets for a maximum of amps. Water coming in Some Ideas and Tips continuous.

For a long The smoke produced from these This information was graciously battle, it typically takes 1. LiPo Charge Bag. This bag is made from Kevlar and Nomex www. It is recommended that protective clothing and a full-face SCBA breathing system be used by anyone fighting this type of fire. The smoke is one of the more difficult issues to control and it's a good idea for event organizers to provide a high flow ventilation system for their arenas and buildings. They should not allow people to enter the arena until the smoke has been cleared.

Due to the nature of this battery chemistry and the volume of smoke produced, this could take a long time. This is definitely something to consider and in some event venues, it may be difficult to achieve. Samuel Mishal is a software engineer and systems analyst. He worked as a consultant for major government departments and businesses around the world. He taught mathematics and computing at the college level. Convert currency. Add to Basket. Condition: New. New Book. Shipped from UK. Established seller since Seller Inventory IQ More information about this seller Contact this seller.

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Brand new Book. Aven Adjustable Circuit Board Holder. Multi-subdivision design. Continuous improving QMA series omni wheel. QMA series omni wheel has achieved small clearance in axial direction of roller wheel with steady improvement, they can be especially used on different small robots.

Completely Assembled and Tested. The Robot is model number TP Fully assembled and tested. It can thus change its direction by varying the relative rate of rotation of its wheels. This robot comes complete with a motor controller.

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The chassis is a rigid gusseted aluminum frame that is precisely fabricated using state of the art CNC equipment. Drive this robot up to feet per minute. The robot uses differential steering movement is based on two separately driven wheels placed on either side of the robot body.

The standard motors drive this robot up to feet per minute. The total weight of this configuration is 59 lbs. The wheels are mounted on solid steel axles which are supported by ball bearings. Dual Ball Bearing for each steel axle. Hangfa QL13 5 Omni Wheel. QL series omni wheel has achieved zero clearance in axial direction of roller wheel with steady improvement, particularly suitable for different small robots. Double Multi-subdivision design.

Application fields Slid platform, milling machine, drilling machine, textile, weld, machine hand, robot, etc Technical Support 1 Products from the factory to provide one year free after warranty, life time free technical support. A Main Functions Automatically execute Actual running, Dry running, Single-step execution, Terminate program, Start and Pause function Manual operation Manual high speed, Manual low speed, Jog operation, Back to program zero, Back to machine zero Program management absolute programming, Incremental programming, linear and circular interpolation, back to machine zero, sub-program call, register, delay, repeat, Output, PLC set, Pause.

When compared with traditional 3-driven platform, the 4 WD use 4 independent drive motor, which makes it more powerful and provide climbing ability for outdoor applications. The kit comes complete with 4 x gearmotors, outdoor wheels, aluminum frame and mounting hardware. The 4 WD four-wheel-drive robot chassis is a platform for independent research and development.

To complete the kit, you would need a dual motor controller and a receiver or microcontroller. Counting and Percentage Modes. Comes with 12 V DC Adapter! Comes with clear dust cover. Platform Size 6. Hangfa DQ2 Robot Base. Compared with the traditional gear train, the QMA omni wheel is able to accomplish many special movements, like translation, rotation, and simultaneous translation rotation. Discovery Q 2 uses four high-power coreless motors as the driver, equipped with multi-axis servo driver, supporting both CAN bus and RS interface.

The development kit provides with a complete equipment communication protocol, and also provides examples and demo application source code based on STM 32 F , which allows users quickly know how to operate Discovery Q 2. After you calibrate the sensors, you end up with a cool robot which shadows you just like from real steel, but not quite as cool. Also it's based on the popular arduino platform, so if you have an arduino already just connect the reset of arduino to reset on pcb, tx to rx, and rx to tx. When you get the Kit, you simply the components on to the PCB and connect the servos which are connected to the hand and plug in the flex sensors which are on the glove.

The Kit is for Beginner do-it-yourselfers who want to start building robotics but Think its to complicated to make cool projects right off the bat. So it is easily hackable. Hangfa DQ1 Robot Base. Compared with the traditional gear train, the QL omni wheel is able to accomplish many special movements, like translation, rotation, and simultaneous translation rotation. The development kit provides with a complete equipment communication protocol, and also provides examples and demo application source code based on STM 32 F , which allows users quickly know how to operate Discovery Q 1.

Discovery Q 1 uses three high-power coreless motors as the driver, equipped with multi-axis servo driver, supporting both CAN bus and RS interface. Uno is a microcontroller board based on ATmega Tilt holds down groove, collision switch mounting hole, can be added with sensors.

No drivers needed for Linux or Mac, and the ability to have the Uno show up as a keyboard, mouse, joystick, etc. No drivers needed for Linux or Mac.