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Over the last month, I saw many robots that don't have any real purpose, which made me ask myself: "Does this have any value?" I saw dancing robot on CES, advanced lego based robots and also robots combined for very limited purpose. I saw ten year old children playing with robots, and competitions for them. Someone has... |
Microhard Systems currently sells several types of 900MHz modems, which are mostly used in robotics and SCADA applications. One of their product lines, the 910 series (MHX910, n910, Spectra 910), is obsolete and no longer sold. However, some older equipment is built with OEM versions of the 910 series soldered in pla... |
I also asked this question on ROS Answers, but it's not getting much interest there.
Currently the EtherCAT package in ROS uses the slaves' Product IDs to identify the devices, and load the correct drivers. This works great when all of the devices are manufactured by a single vendor, but are there any plans to prevent ... |
I'm building a quadrupedal robot that will learn how to walk. From the responses I got from asking if its possible to run a NN on a micro controller I realised I needed to think of a clever system that wouldn't take 1000 years to be effective and would still be able to demonstrate onboard learning. I've designed a sys... |
We are currently designing a mobile robot + mounted arm with multiple controlled degrees of freedom and sensors.
I am considering an architecture in two parts:
A set of realtime controllers (either Raspeberry Pis running an RTOS such as Xenomai or bare metal microcontrollers) to control the arm motors and encoders. ... |
I'm running out of digital ports, and have no sensors that fit the definition 'analog'. Would it be possible to run a touch sensor, a quadrature encoder, or an ultrasonic sensor on an analog port?
I'm thinking not, but I didn't run across anything that said otherwise.
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I have a small motorized vehicle with gears as wheels running up and down a track made of gear racks. How can this robot know when it has run half the track? And what's the best method to keep it from running off its track at the end and then return to start.
The robot is carrying water, not exactly the same amount eac... |
I'm working on a rather low budget project, and need some way to control four or more motors using one Arduino. I've looked at motor shields a little, but I have a shield on top of it already, It does have female input on the top though, so a motor shield may work. Any suggestions?
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We have an electric wheel chair, and are looking to add a rotary encoder to each wheel. We don't want to hack the motor itself, so want to add the encoder without harming the motor-to-wheel connection. We will be using an arduino to read the signal.
Does anyone have any experience adding rotary encoders to already as... |
I'm working with a lifesize (~130cm) humanoid robot (Hubo+) and looking for a way to easily program new motions and gestures into him. Obviously, I could write my own tool, but I am looking for a solution that can leverage existing tools or standards for robot motion. My first thought was trying to use animation softwa... |
I'm currently designing a robotic arm with 6-DOF, and my goal is to be able to give setpoints for 3d position, velocity and orientation ($x,y,z,\dot{x},\dot{y},\dot{z},\theta,\alpha,\gamma$).
I only had feedback-control for SISO systems so far in College, so, taking the learning curve of multivariable control in consid... |
I have been trying to write code to connect a HiTechnic prototype board to my lego brick. Although I am using MSRDS studio, that isn't the issue; reading and writing to the serial port that the device is connected to works fine.
Where I am lacking is that I don't understand the data is that is being sent and received.... |
I want to injection-mold several thousand of a part that fits in a 6" x 6" x 2" bed.
I would like to be able to use only tooling that I can make myself, so I can rapidly iterate on the tooling as production problems are discovered.
I know that typical injection-mold "hard tooling" is created using electrical discharge ... |
I am working on building my own quadcopter from scratch. I noticed that many solutions available online use arduino, but I am not a fan of arduino. So my questions are: what microcontrollers should be used, what are the crucial features of those microcontrollers etc. I would like to build it from total scratch. I was t... |
For avoiding obstacles during 2D robot navigation what is the best position/angle to place the sonar sensors? How many should there be?
I would like to know if there is some theory or examples for the problem of placing. I realize that it depends on the way that the robot moves and its geometry, but I am searching for ... |
I am reading research papers about robotics and many of them follow the same pattern:
some construction is established
kinematical formulas are read from the mechanical structure
the state space is analysed (e.g. how far the robot can reach, what the maximum speed can be, what is left underspecified and how to handle ... |
Using a depth sensing camera like Kinect, I would like to retrieve the position of an predetermined object (e.g. a cup, fork etc so that I would ultimately be able to grab the object). What would be a way to achieve this?
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I am learning about I2C on the Arduino. I was looking at a sample program to scan for I2C devices and saw this:
// This sketch tests the standard 7-bit addresses
// from 0 to 127. Devices with higher bit address
// might not be seen properly.
With the following code.
for(address = 0; address <= 127; address++ )
... |
I'm studying various optimal control methods (and implements them in Matlab), and as test case I choose (for now) a simple pendulum (fixed to the ground), which I want to control to the upper position.
I managed to control it using "simple" feedback method (swing-up based on energy control + LQR stabilization for the u... |
I have the following chassis along with an Arduino and a motor shield.
I'm in the process of developing a tracking mechanism for use with differential drive.
Normally, a photo reflector can be placed adjacent to the wheel that will reflect when each spoke passes through therefore allowing code to be written that will ... |
Is there a way of initializing a Kalman filter using a population of particles that belong to the same "cluster"? How can you determine a good estimate for the mean value (compute weighted average ?) and the covariance matrix ? Each particle is represented as $[ x , y , θ , weight]$.
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I need to simulate a stream of vehicles, such as on an assembly line. Automatons are performing operations on the vehicles when they come within reach. The automatons do not keep track of the individual vehicles, they simply collect data.
We need to choose a method of matching the data gathered by each automaton with ... |
I am creating a CNC machine on a budget, using old motors out of printers/scanners/etc.
I am limited to about 650mA for the whole system, so my fear is that when the cutting bit touches the material, the stepper might be moving too quickly and won't have enough torque. This would mean it will become one rotation behi... |
I am very new to robotic design and I need to determine what parts I will need to assemble an arm joint. The joint will contain one timing belt pulley which a remote motor will be turning, a forearm that the pulley will be rotating and an upper-arm piece that will actually be two parallel arms that will grip the pulle... |
I'm working on a basic airplane flight stabilization system, as the precursor to a full autopilot system. I'm using a salvaged Wii Motion Plus and Nunchuk to create a 6DOF IMU. The first goal is to keep the wings level, then mix in the users commands. Am I correct in saying that this would not require a gyro, just a 3 ... |
I have a quadcopter robot that has a KINECT on it and i want to do 3D mapping with it.
Is KINECT reliable on a moving robot (i.e., can it give me stable images and maps with this movement)?
Is there an SDK for producing 3D maps from KINECT data? Will SLAM algorithms work?
Is the arduino board on the copter (ATmega 2... |
Before I start asking you for help let you know that I am newbie in electronic field.
All I want to know is the principle of wheel rotation (left-right) from remote car gadget. I am not talking about changing the spin rotation of DC motor (up,down buttons from remote), I am asking about left and right movement of wheel... |
I have 3D printers at my school, but unfortunately they are not super high quality. I want to try 3D printing a model I made on google sketchup, but I would like for it to be fairly accurate.
What measures can I take to prevent error in the model? I understand that I need to export the file as an STL; is there anything... |
I recently start a project to measure the force on a bathroom grab bar. The force/load is applied by the person who need to the grab bar for assistant. What I want to measure is the load against the wall and do the the real-time monitoring of the load for further analysis to improve the design.
I am not quite sure abou... |
I have been experimenting with different fitness functions for my Webots robot simulation (in short: I'm using genetic algorithm to evolve interesting behaviour).
The idea I have now is to reward/punish Aibo based on its speed of movement. The movement is performed by setting new joint position, and currently it result... |
Is there a Matlab toolbox available to use Sick lasers in Windows?
I found one toolbox for Matlab in GNU/Linux. Is there another way to use Sick laser via Matlab in Windows?
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Does anyone know if this is possible? It's just an i2c device right? I mean you would have to cut the cable and make it so you could plug into the pins on the Arduino but you should just be able to use the wire library and say something like.
Wire.beginTransmission(0x10);
the NXT hardware developers kit tells you wha... |
I'm a programmer by trade, and an amateur aerospace nut, with some degree-level training in both fields. I'm working on a UAV project, and while the good people over at DIY Drones have been very helpful, this question is a little less drone-related and a little more general robotics/electronics. Essentially, I'm lookin... |
Is it possible to achieve arbitrary precision to the calibration of the extrinsic parameters of a camera or is there a minimum error wich can not be compensated (probably dictated by the camera's resolution)?
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I am in the process of building a stereo vision system to be used on a UGV. The system is for a robot that will be used in a competition wherein the robot is teleoperated to find relatively small colored rocks in a large outdoor field. I understand how to calibrate such a system and process the data for a stereo vision... |
I'm trying to control a higher voltage motor than an arduino can source with a pin, with an arduino. I am trying to hook it up to a transistor. The battery pack is not supposed to be 4.8V, it's 6V, 4 D batteries.
Here is the setup:
Here is the arduino code I'm trying to run to it:
int motorpin = 2;
void setup()
{
... |
Given workspace constraints, load and task to be done, how do I select the best configuration of my robot? How do I select between a cartesian or Scara robot for instance? How do I select a manipulator? How do I determine how many axes that I need?
Most of what I have seen is based on experience, rules of thumb and rea... |
A 2d laser scanner is mounted on a rotary axis. I wish to determine the transformation matrix from the center of the axis to the center of the scanner, using only the input from the scanner and the angle of rotation.
The 2d scanner itself is assumed to be calibrated, it will accurately measure the position of any obje... |
I've been looking into a Makeblock robotics kit but have found no information on the web that comes from end-users, and one of the main advertised features is not clear to me: The slot threads shown below are straight, while the screw thread that will mate with them is angled. Is there just very little contact betwee... |
I'm looking for a GPS tracking device without screen or apps. I just need it to look for the current position of a bus and send it to a server through TCP/IP protocol. This process must be constant so I can have a real-time tracking. The bus already has a wireless access point.
What device can be useful? Do I need ano... |
I am designing a new platform for outdoor robotics and I need to calculate the power and/or torque that is needed to move the platform. I have calculated that I need about 720 W of total power to move it (360W per motor), but I don't know how to calculate the torque that I need.
Is it really just about having the requ... |
Does anybody know if Kinect Data can be stored directly onto a USB Drive??
I have a Kinect for Windows that i cannot use on Linux(ROS). However what i plan is to mount the Kinect on my robot, store the captured frames on a USB and then un mount the USB ,transfer to Linux and process them on ROS.
Is this possible?? Any... |
I'm trying to connect a camera module to my Arduino Mega, connect my Mega to my Android phone (throught BlueTooth or other), and send the live view of the camera to the mobile phone.
I saw a video online that showed this for still images -- an image captured by the camera module on the Arduino was sent to Android and t... |
I need to make an omni wheeled robot platform (4 wheels), which should go at a minimum speed of 15 cm/s. I have an idea for the design, but since this is my first time doing something like this I have made a lot of assumptions.
I decided to choose the TGY-S4505B servos as my motor system. I intend to attach these ser... |
Do any of the TI ARM SOCs, e.g. OMAP or Da Vinci, have a version with stacked RAM? (e.g. DDR2 or mDDR) For miniature robots like micro drones, it would be really nice to not need to spend board area on an external RAM chip. Thanks!
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For my robot, I am using two continuous rotation servos to spin a threaded rod. I am trying to make this project as cheap as possible. Here are the servos that I can find:
Servo #1: This is a very cheap option and it has half of the torque I need.
Servo #2: This has all of the torque my project requires, but it is muc... |
I'm doing robotics research as an undergraduate, and I understand the conceptual math for the most part; however, when it comes to actually implementing code to calculate the forward kinematics for my robot, I am stuck. I'm just not getting the way the book or websites I've found explain it.
I would like to calculate t... |
I'm new to robot making and just got my first arduino to play around.
I want to make a robot that will wander on a table, and it will last longer I think if I could make it avoid falling from the table.
What will be the best way to make it detect the edge of a table so I can make it stop and turn around ? It have to be... |
A robotic joint is connected to two actuators, e.g. air muscles. One flexes the joint, while the other extends it. This arrangement is called 'antagonistic'.
But what if I had an electric motor instead of the air muscles? In that case it can only pull on one tendon at a time, and it's not antagonistic. What it the arr... |
I'm trying to create a map of the obstacles in a fairly coarse 2D grid space, using exploration. I detect obstacles by attempting to move from one space to an adjacent space, and if that fails then there's an obstacle in the destination space (there is no concept of a rangefinding sensor in this problem).
example grid... |
I am having some issues with the ARDrone Parrot 2.0 and hope someone else may be running into the same thing.
While hovering, the drone is (seemingly) randomly losing altitude then recovering . It is doing so while not being commanded any velocity inputs and should hold altitude.
We are using the drivers from the ardr... |
I'm using Teensy hardware specifically. I have a Teensy 2.0 and a Teensy 3.0, and from the documentation it seems like there are two 16 bit timers available, and each should be able to control 12 servos. However, I've attached a logic analyzer and have confirmed that only the first 12 servos attached ever function.
I... |
I have come across a number of methods for developing wall-climbing robots.
Suction
Chemical Adhesion
Gecko like hair adhesion
Electroadhesion
Which method would be the best for heavy robots (5kg+)? Are there any other methods that I have missed?
|
I asked this question on answers.ros.org and gazebo.ros.org but still haven't got any answer. I'm posting my question here with the hope someone can help me.
In our robot, the Kinect can be mounted on the side of the arm, as shown in the screenshot below. When running the simulation in Fuerte, I found this weird behavi... |
In the prediction step of EKF localization, linearization must be performed and (as mentioned in Probabilistic Robotics [THRUN,BURGARD,FOX] page 206) the Jacobian matrix when using velocity motion model, defined as
$\begin{bmatrix} x \\ y \\ \theta \end{bmatrix}' = \begin{bmatrix} x \\ y \\ \theta \end{bmatrix} + \begi... |
I'm having some technical problems... I'm trying to use Firmata for arduino but over nrf24, not over Serial interface. I have tested nRF24 communication and it's fine. I have also tested Firmata over Serial and it works.
Base device is simple "serial relay". When it has data available on Serial, read it and send it ov... |
Im in the process of making a robot which requires 12 3x10mm cylindric magnets for the construction. They are 30mm from the center of the robot where I plan to have the IMU.
I was thinking about using MPU-6050. Do magnets affect the values? If yes, is there a solution for it? like maybe I could have a shield or someth... |
I know that temperature influences the characteristics of semiconductors and other materials, but we know how and can take that into account. Furthermore, lower temperatures makes electronics more efficient, sometimes even superconducting.
I remember reading somewhere that engineers building Curiosity even considered l... |
I have a small quadruped with three degree of freedom legs which I have been working on: 3DOF Mini Quadruped.
My original code for it was a simple servo controller on the arduino, and Scala code which would send servo commands over the wire. I did all the Inverse Kinematics and Gait logic in Scala, and got it to walk:... |
I'm building a quadcopter and have discovered that most ESC have a built-in BEC, but I was wondering if it wouldn't be better to use only one.
What if I delivered power to my four ESC with a unique BEC ? Would that work ?
I think this would be easier to configure (you have to set it up only once for the four ESC) and i... |
Here is the background. I am trying to write a service for the HiTechnic prototype board.
Using the Appendix 2 from the blue tooth developers kit from Lego's site I am able to understand what is going on with this service I am trying to build however the response I get is always 221 = 0xDD = "Communication Bus Error" ... |
I was able to find a small ESC for about $12 off of ebay. If you were designing a robot, would you see that and think?
\$12 bucks for an ESC that connects to simple pulse-wave interface -
sign me up!
Or would you think:
\$12 just to control a motor? I could throw together an H-bridge for
$0.50 and be done wit... |
I have written code to send data from controller to pc through serialport using interrupt
but it echos garbage value exactly 3 times back.
ISR(USART_RX_vect)
{
unsigned char index = UDR;
UDR = index;
}
void uartInit()
{
UCSRA=0x00;
UCSRB=0x18;
UCSRC=0x86;
UBRRH=0x00;
UBRRL=0x67... |
I am doing Local Localisation with sonar, particle filter (i.e all particles are initially with robot pose).
I have grip map of environment. When I execute algorithm in environment (where doors are closed/open), particles are not able to followup the robot.
I don't have random particles since I know the initial positio... |
I am looking to augment a GPS/INS solution with a conventional land vehicle (car-like) model. That is, front-wheel steered, rear wheels passive on an axle. I don't have access to odometry or wheel angle sensors.
I am aware of the Bicycle Model (e.g. Chapter 4 of Corke), but I am not sure how to apply the heading/veloc... |
My team is building a robot to navigate autonomously in an outdoor environment. We recently got a new integrated IMU/GPS sensor which apparently does some extended Kalman filtering on-chip. It gives pitch, roll, and yaw, north, east, and down velocities, and latitude and longitude.
However, we also have some encoders a... |
As a holiday project we are building a surveillance robot that is capable of transmitting live images using a webcam and is also capable of lifting small objects.
It uses a CC2500 module for communicating with the robot. The interface is designed in Visual Basic 6 and it allows us to set the port of the computer to ... |
We are making a junior soccer robot and we just got our brilliant motors from Maxon.
Setting the PWM timer to low-frequencies (around 39kHz or 156 kHz ) the robot acts as expected. But this produces some problems.
It puts a heavy current on batteries (around 1.5A for 3 motors which is far too high).
The high current ... |
I am following a guide that recommends using stepper motors and it has an approximate holding and operating torque. It says that if you don't know the operating torque, it is often half of the holding torque. I am adapting this to use with a servo and I was wondering can this same formula be used with a servo. My servo... |
I am trying to control the force of a solenoid. My current system has a bank of capacitors connected to a relay. In order to control the force (how hard I am trying to hit the object) I am increasing or decreasing the the time the relay is on. The problem is this works but it either hits with too much force or way too ... |
In Probablistic Robotics by S. Thrun, in the first section on the Extended Kalman Filter, it talks about linearizing the process and observation models using first order Taylor expansion.
Equation 3.51 states:
$g(u_t,x_{t-1}) \approx g(u_t,\mu_{t-1}) + g\prime(u_t, \mu_{t-1})(x_{t-1} - \mu_{t-1})$
I think $\mu_{t-1}$... |
I'm looking to use 4 of these 3.2V LiFePO4 batteries. I intend to have 2 pairs of 2 in series in parallel. So two 6.4V battery packs in parallel. Because my setup will be run off of this, it will also be easiest to recharge the batteries using the same setup. To accomplish this, I'm looking to charge all the batteries ... |
I saw this art drawing robot on youtube:
http://www.youtube.com/watch?v=Wo15zXhFdzo
What do I need to learn in order to build something like that? What are some beginner oriented projects that could lead up to building something like this?
I'm an experienced programmer but I have very little hardware experience.
|
I am using the Pololu Micro Serial Servo Controller connected to an Arduino and multiple other servos (4 total) to make a robot arm. Two of the four servos require 4-6 volts, while the other 2 require 7-10 volts, so I am planning on powering all the servos separate from the Pololu.
I have the Arduino and Pololu connec... |
I would like to build a robot which follows a virtual path (Not a visible path like a 'black line on a white surface', etc).
I'm just enthusiastic by seeing some sci-fi videos which show robots carry goods and materials in a crowded place. And they really don't follow a physical line. They sense obstacles, depth, etc. ... |
Does anyone know if small mechanical actuators exist which can be controlled electrically, sort of like a miniature joystick, but in reverse. Instead of it picking up mechanical movement and outputting electrical signals, I want it to generate mechanical movement controlled via my electrical input signals. I’ve searc... |
I'm building a quadruped and I'm not sure of the features I should be looking for in a servo motor. e.g. digital vs analog, signal vs dual bearings. Some of the ones I'm considering are here
|
I am working on this project that involves using the Kinect for XBOX 360S with ROS.
I did all the steps mentioned in the ROS Tutorials to have Openni Installed and the Prime sense and other drivers. and when i go to Openni samples i see a output. But in ROS i do a roscore and in another terminal do a roslaunch openni_l... |
I'm considering experimenting with PIV control instead of PID control. Contrary to PID, PIV control has very little explanation on the internet and literature. There is almost a single source of information explaining the method, which is a technical paper by Parker Motion.
What I understand from the control method di... |
I'm trying to learn about servo control. I have seen that the most generic position control method for servos is PID, where the control input is position error. However, I am not sure about what is the actuated quantity. I am guessing that it is one of:
Voltage applied to the motor
Current applied to the motor
I am t... |
Is there web mapping tool that allows developers to use it to plot GPS data of autonomous vehicles/robots?
Google Maps forbids it. See 10.2.C. Google Earth terms of use link jumps to the same page. Bing Maps looks the similar (see 3.2.(g)).
What I want is a internet-based tool that shows either/both satellite images an... |
I've already built a two wheeled balancing robot using some continuous rotation servos and an accelerometer/gyroscope. I upgraded the servos to some geared DC motors with 8-bit encoders with the goal having the robot drive around while balancing.
I'm kind of stuck on how to program it to drive around while still ba... |
I am writing a method (Java) that will reset the position of e-puck in Webots. I have been following tutorial on Supervisor approach. I have two controllers in my project:
SupervisorController extends Supervisor - responsible for genetic algorithm and resetting e-puck's position
EpuckController extends Robot - drives ... |
I want to make a list of what knowledge is necessary for sensor fusion. Since it has a wide array of possible applications, it is not clear where to begin studying. Can we please verify add topics that are in-scope, and specify to what extent?:
Digital Signal Processing course
Probability Course
Machine Learning - cou... |
Currently I am reading a book of Mr. Thrun: Probabilistic Robotics. I find it really helpfull to understand concept of filters, however I would like to see some code in eg. Matlab. Is the book "Kalman Filter for Beginners: with MATLAB Examples" worth buying, or would you suggest some other source to learn the code snip... |
I want to built a robot and i need bunch of modules to track it like GSM/GPS Wifi and Camera
If i try to buy each of module separately it will cost me 300 dollar each aprox in Pakistan. On the other hand an android enable phone can be purchased on just 250$ having all of them. I was wondring if it is possible to interf... |
For example, if a rover has working temperature range of -70 to +120 Celsius, how does it survive and then restore itself if the temperature drops to -150 degrees for several months?
|
Within robotics programming, orientation is primarily given in terms of x, y, & z coordinates, from some central location. However x, y, z coordinates aren't convenient for rapid human understanding if there are many locations from which to select (e.g., {23, 34, 45}, {34, 23, 45}, {34, 32, 45}, {23, 43, 45} is not pa... |
I need help with figuring out the following things:
I'm developing a hexapod R-Hex type model with a tripod gait. However, the angles obtained during the robot's walking in real life are not perfectly aligned. Because of this the robot often collapses and falls even on perfectly straight terrain.
My configuration is:
... |
I want to know if there is best algorithm and technique to implement self learning maze solving robot in 8 bit limited resource micro-controller? I was looking for some well optimized algorithm and/or technique. Maze can be of any type. Of-course first time it has to walk all the way and keep tracking obstacles it foun... |
I want to prototype a therapeutic device that will have a lot of tiny mobile-phone type vibration motors like this one in it, and I want to be able to activate them in any configuration I want. I'm going to need analogue control, and support for logic like perlin noise functions and so on. I'm not really going to nee... |
I currently have a working kinematic chain made by a set of ten links in D-H convention (with usual parameters [ $A_i, D_i, \alpha_i, \theta_i$]).
But my task currently requires the inversion of some of them. Basically, I would have a part of the chain that is read from the end-effector to the origin, using the same li... |
I am trying to run a nxt motor using the mindsensors motor multiplexer at a slow speed. When I turn it on, it tends to jump approx 20 to 40 degrees before moving at a slow speed. Has anyone seen this behavior?
I am using NXT 1.0 with firmware down loaded from lms_arm_mindsensors_129.rfw. Sample code in NXC (I am usi... |
Is there a way to use a single dc motor output for two different loads (by using gears, relays etc) ? Please see the illustration below:
To clarify the illustration, I get the dc motor power at "output 1" gear which is extended over an idler gear to output 2 gear. All three are in contact (though the picture doesn't q... |
This question was asked in electronics stackexchange. I want to know if is it possible to make a robot that can fly kites. Is this idea practical? I was thinking that making a kite is just like making some flying quadcopter or helicopter. I just want to know is this idea really implementable? Is there an example or si... |
I'm building a quadcopter and I've received my motors and propellers.
What's the right way to assemble those together?
I'm not confident with what I've done, as I'm not sure the propeller would stay in place on a clockwise rotating motor.
I mean, if the motor rotates clockwise, will the screw stay tightly in place, eve... |
For a pet project, I am trying to fly a kite using my computer. I need to measure how far a cord extends from a device. I also need to somehow read out the results on my computer. So I need to connect this to my pc, preferably using something standard like USB.
Since the budget is very small, it would be best if I co... |
I have a 4-bar linkage arm (or similar design) for a telerobot used in the VEX Robotics Competition. I want to be able to press buttons on my PS3-style controller to have the arm raise to certain angles. I have a potentiometer to measure the 4-bar's angle.
The potentiometer measures the angle of one of the joints in ... |
The textbook I'm using doesn't have the answers to the practice questions, so I'm not sure how I'm doing. Are the following DH parameters correct given the frames I assigned?
The original question is as follows:
The arm with 3DOF shown below is like the one in example 3.3, except that joint 1's axis is not parallel to ... |
How do I increase the rotation range of a standard servo? Most servos have a rotation range of ~ 180 degrees. I would like to access the entire 360 degree range on the servo, partially because I would be attaching the servo's shaft to the robotic wheel and would like it to be able to make full rotations. Or is that not... |
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