Robot Definition and 209 Threads

Clever idea! Configurable robot cubes. MIT: Self-configuring robot swarm. Harvard: Sorry, no question, other than isn't that cool?

I'm trying to do research on how active variable compliance can be achieve in a humanoid robot. Can anybody point me towards papers/patients that have already looked at this problem ?

Hello all I have a doubt with the load concept acting on a beam. Consider a robot arm, actuated using Electric motor. When the arm is static and hold in position by the motor, Does the Gear ratio reduce the load acting on the motor due to the Gear ? Or when the arm is static, the Gear system...

Hi guys, My science teacher gave me a project to design a robot for a specific planet. I must also include what materials the robot were to be made of. Unfortunately the planet I received has very hostile conditions 1. Temps of -1000 degrees C. Do not ask my why my planet is colder than 0K (3...

I'm helping my nephew in school who really wants to be part of robotics class. I don't know why. He is a year under being considered, and next year, in order to "apply" he needs to make a robot, and film a documentary on how, why, he built it, and why he should be accepted. Electronics and...

Dear friends, I have designed a robotic arm driven by servo motor via a planetary gear box.I have used taper roller bearing & deep groove bearing to hold the driven shaft.The distance between two bearings is 10 mm .When I turn ON the motor, the motion of arm is jerky.Also, I've used lamina...

Have you been watching it? I've been finding it fascinating and incendiary. It strikes me as the first show that addresses problems exclusive to people who are now in their twenties: the first generation pretty much raised from infancy in the marinade of the computer/cell phone age. The main...

I need to determine the Lagrangian of a 2 link Robot arm with 3 degree of freedom.

hello, I have a car robot with 2 motors which follows a black line. I want to save the track which the car follows. I can get the speed of each motor every. I thought about saving the 2 motor speeds every 100msec and then figure from this the track. Any ideas how I can do it?

Greetings PF, I'm a computer science student who is tasked with a robotics project. I've got a 2-wheeled robot (there's a 3rd dummy wheel on the back to prevent it from falling over) that turns like a tank, by means of turning one wheel faster than the other. If both wheels are the same speed...

I'm designing a robot to compete against a friend who is also making a robot based on the Robot Sumo competitions. We decided on the dimensions of our bots and placed a 2kg limit on their weight. I'm having trouble determining what motor to use that will be able to move my own ~2kg robot around...

Hello everyone, So I am working on a differential drive vehicle... max weight 6kg and using two stepper motors centred on a circular shaped flat body. I want to try and work out if these stepper motors have enough torque to drive the thing. I am a second year engineering student, but I haven't...

I have an issue that appears to be relating to noise mitigation and grounding. Some background on myself is I have a mechanical engineering technology degree. But my job requires an ability to work with and troubleshoot electrical issues. Currently a customer is using a Servo motor on an end...

The servo motor that I'm using says it has torque of 1.89 kg-cm. And the radius of the wheel I'm using is 3.5 cm. So i wanted to know how much load can two of these motors can together carry?

well , i want to build a very simple walking robot . but i would like to have a special walking mechanism . i'd like it to be like Tars robot in interstellar movie . this video shows the movement mechanism of it . the problem i can't figure out how to build such mechanism of movement . any help...

If you made a coin flipping machine that was contained inside a vacuum (or as close to a vacuum as you can get) and the robot flipped the same coin from the same starting position with the same speed etc, let the coin bounce on the floor and repeated the experiment with the exact same starting...

hello! I want to build a robotic suit for human body, that will open and close accepting the human body are there any online shops that I can buy stuff to build it? thanks!

There is a board game called "Quoridor" (http://en.wikipedia.org/wiki/Quoridor) where you build walls in such a way that your enemy is impeded and you are helped. I would like to build some similar pieces out of wood large enough to allow my students' robots to have a "changeable" maze they...

So we're using NXT 2.0 and MATLAB to program a robot to follow a white line through a maze. I'm using a light sensor, color sensor and an ultrasonic sensor in the process. Any programming/Coding ideas of how i should start? This is the maze...

I'm working on a senior design project. Currently I'm having some issues with sizing a motor for a large robot; everywhere I look I get different advice. I have a motor that I think will work but would appreciate some input. The specs are for our robot are as follows: mass = 350 lb = 158.8 kg...

I'm looking for a DC Motor to power a small 50lb robotic platform with maximum speed of 10mi/hr. What should I be looking for? I've made some basic assumptions of 8" or 12" diameter wheels and so the rpm rating should 420 rpm and 300rpm respectively to attain 10mph. I plan to use at least two...

Hello, I am trying to build a high-speed X/Y cartesian robot which vacuums up defected parts from a moving conveyor. The end effector of the robot has a venturi vacuum integrated. Because the vacuum is constant, I need a Z-axis to go up/down for the end effector to get the defects otherwise...

In the i,Robot book -by Issac Asimov- one of the stories mention some sort of satellite for gathering solar energy. Basically this satellite will be stationary outside of our orbit, and it will gather solar energy and intensify it into a beam that is transmitted into a base on earth. I...

greetings, could you please tell me where i can find information related to gps receiver as i need to use it on my robot. if possible please give the websites where i can get all available gps receiver. i don't know what are the kind of gps available so i m not able to decide... thanks in...

Hi Guys, I am currently building a robot and I am doing some research for the movement of the robot on vertical objects preferably walls made of steel and horizontal grounds. These walls contain some oil spills. To be clear the main purpose of the robot is to do inspection (electrical oil...

Hi, I want to find the instantaneous center of rotation of a differential drive robot. Assuming I know that the robot will travel with a particular linear and angular velocity (v,w) I can use the equations (given here http://rossum.sourceforge.net/papers/CalculationsForRobotics/CirclePath.htm...

Has anyone here worked with Fanuc robots? At my shop, we use RJ 2 or 3 controllers on all of our MIG welders. I sometimes have to make small moves in the robot's point positions. This is generally done by putting the robot's coordinate system in "Tool", finding the axis I need, and then...

Feed all the laws into it and the robot and let the robot make unbiased judgements. Are human feelings necessary for a good court judgement? At least the first level judgement could be by a computer. If there is a dispute, it could be escalated to a higher human judge. Thoughts?

hi, for my project i want to control my robot using GPS system.could i get name of the things what is required to execute this.i have already built a robo now i need to embeded this with GPS . or, please tell me how to implement GPS. thanks in advance.

This is bad and I should know this but I can't seam to figure out if my torque calculation is correct. Heres the story I am trying to build a robot that will run off of four electric motor one at each wheel. I want it to be able to weight around 25 lbs and be on around 6 inch diameter wheels...

Homework Statement I have this object avoidance robot, who is supposed to detect cans and push them out of a ring. It has two optical sensors, one looking left (C1) and one looking right (C2). I also have two timers which are triggered simultaneously when the robot goes over the ring line...

As a part of a school project I am required to build an electromagnetic tether robot. The robot needs to stay a constant distance from an electromagnetic beacon. As well as keeping a constant distance the transmitter can change the desired distance. (eg. move closer/move farther commands). The...

Homework Statement Here you are supposed to perform system identification to determine the parameters required later to perform model compensation in your PD control loop. The dynamic model of this single joint manipulator has the form τ = Ia + Bv + G(x), where a is angular acceleration...

hi i want to to create a small robot controlled by Bluetooth of cell phone but i wondered about how the robot can receive this signal ? what is the technique i should use in my tiny robot so i can control it ?

Hi I'm currently doing a design project for my engineering class, and we have to select either an FPGA and use VHDL or a microcontroller. The project entails following a line, and using IR communication to change the colors of LEDs. I know that FPGAs might be better because you can do...

Hi, I am doing an university project that consists in building a robot that operates in a AC to DC convertor. The robot has to work under HV environment. I am looking at possibilities of shielding the electronics of this robot. Can you give me any suggestions or links to look at? Also, will...

I have problem in building my mini-project as stated in the topic.I am actually confused how the robot will follow a signal like micro wave or radio wave, this kind of wave just spreads and the robot will get confused where to go.I just want opinion what shall i do that the robot will come to...

Is there anyone here who can help me, can suggest or has an idea as to where I can find a latest thesis paper/Journal about a human body mimicking robot that focuses more or had problems on its controller, like EMG, potentiometer, or the likes? I am a fourth year engineering student and I...

i am trying to design a robot which can track a transmitter which produces rf signals in a given range of frequencies(example:- 400-900 MHz). i want to know the following details. 1. i have a design of wireless robot with A433MHz RF modules. i need to change the frequency of transmission...

Hi Guys, I just want to know the effect of varying center of mass in a vehicle, specifically in a line following robot, I am going to put load on it, thus center of mass will vary, then i will study how will the varying center of mass affect the response of the line following robot, can anyone...

Hello there, I'm a beginner at ROS and I've some questions regarding multisensor fusion. I am currently working on a robot (Pioneer P3-AT) with a monocular vision and Hokuyo LRF without an a priori map. However, I am unclear about how to apply the proposed algorithms like EKF, Bayesian, etc...

Hello, I have a general question regarding what is the best controller (PI, PD, etc.) to control the position of a mobile robot in order to follow a known path. The mobile robot at hand is a mechanism (a 4 bar linkage with its two base gliding on two parallel but not straight rails) and I...

I'm debating with a friend of mine whether or not the term "robot" can be used to describe the large bipedal machines known as Gundams from the franchise of the same name. He's insisting that a robot cannot be something piloted, that a robot is purely something automated or remotely controlled.

Hi ! I am working on a table tennis playing robot. The picture of the robot is attached. I have few questions. 1) Can I consider the collision between Ball and the plate as the two dimensional collision ? ? (At this time I am not considering z-axis) 2) If I am considering the...

Homework Statement I'm trying to build a "juggling" robot but I'm getting stuck on the dynamics of catching. The robot follows the dynamics and terminology of a similar one presented in the attached paper (equation 1). Basically, there is a circular ball flying through the air which lands (and...

http://www.gatech.edu/newsroom/release.html?nid=128531 Browsing the alumni stuff, I see things that make me wish I were back in school. You kids and faculty are so lucky to be able to do this kind of stuff every day. I have serious envy! Alas, wife, kids, house, bills, argh. Nothing but work...

Hey guys I have a freaking project that requires me to build a rope climbing robot that cannot be powered by chemical based. Basically no batteries as such are required.

I am making a robot that entails a moveable base and a basic moving arm. I have made a force diagram using a 50kg, 110lb weight 9the maximum intended load. Doing the math (some of it I rounded) I would need at least 540 N of force to raise the weight. How could I design a shoulder joint in such...

hello. I want to know the instructions of how o make a robot but make it turn at several intervals to left and right,