Questions tagged [robotic-arm]

The arm tag is intended to be used for questions relating to robotic arms from, small hobby arms with only 1 or 2 degrees of freedom to large industrial robots with complex joint assemblies. For the ARM CPU, use the tag arm-cpu.

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1answer
77 views

Making a Gripper Changer for a Robotic Arm [closed]

How do you make a gripper changer for a robotic arm like this? I don't see how you could connect power/control wires or what you use to hold the gripper to the arm.
2
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1answer
95 views

Path comparison

Problem: the cartesian position of an end effector (no orientation) of a robot arm is recorded, say, every millisecond (the time steps can not be changed), during a motion. The robot arm is commanded ...
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0answers
281 views

Installing OpenNI on Pcduino

Following my previous question about pcduino+kinect, decided to go ahead and buy the pcduino I wish to run my robot with (kinect+pcduino+shields). However I'm having trouble getting started: I tried ...
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2answers
87 views

What is the actual application for manufactuing, with robot arm autonomous object classification system

I’m a graduate student, and we're doing a project that is going to introduce a robot arm into manufacturing. Our goal is to build up an autonomous object classification system. We already have the ...
1
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1answer
436 views

6 DOF Robotic Arm [closed]

We are building a 6 DOF robotic arm as a college project and we've almost finished the designs. The problem is with the controls. We still havent thought on how to control the arm, as in , software ...
3
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3answers
4k views

jacobian of Abb irb140 robot

Can someone please help me with the jacobian matrix equations for Abb irb140 robot. Or an easy way by which I can derive it given the DH parameters. I need it to implement some form of control that am ...
3
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2answers
680 views

Industrial Robotic Arm

I had the opportunity to work for a factory/company that is in the domain space of production and they want to use a robotic arm for part of the production line. They want basically a robotic arm ...
0
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2answers
176 views

What parts do I need for a strong robotic arm? [closed]

https://www.youtube.com/watch?v=MPhhYlIq294 I have found this robotic arm on the internet, and I was wondering if someone can tell me what parts I need to build it or similar. The video says it can ...
6
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1answer
3k views

What are some good cheap, silent, motors for mannequin robots and what kind of controller should I use? [closed]

What are some good cheap, silent, motors for mannequin robots and what kind of controller should I use? I'm creating mannequin robots that require 24 motors: 2 neck, 4 shoulder, 2 elbow, 4 wrist, 2 ...
2
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1answer
69 views

How long can a VEX pneumatic arm be?

How long can a vex pneumatic piston be?
6
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2answers
767 views

SCARA Arm Lead Screw Choices

I'm thinking about building a SCARA Arm to lift moderate loads(5lbs) with a high degree of accuracy. I want a relatively quick and inexpensive Z axis gantry, and I was thinking about using a lead ...
2
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2answers
226 views

How does one calculate the angular motion of each node in a robotic arm

A robotic usually consists of joints with sections of possibly varying width connected together. Considering we know how much each is bent and the length of each section, and their location in 3D ...
2
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3answers
7k views

How to decide about the length of a robotic arm, the base of it and the torque?

I am designing a remote controlled robot which will have a base with three wheels, two of them will be simple wheels at the back of the base and the third will be a ball wheel at the front. It will ...
4
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1answer
872 views

Compliance control for a single link robot in matlab

What exactly is active compliance control in robotics joint? Why Is it used ? How can I write a program to simulate the compliance control in matlab for a single robotic link or single robotic joint ...
0
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1answer
70 views

Wine yard robotics? [closed]

My friend has acquired a (small) wine yard to discover how much work it is tending and harvesting the grapes. Now we are musing to enlist robotic help. The vine stocks are usually connected by a ...
2
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1answer
597 views

Capacitive touch input robot to remote access iPad

I'd like to buy a capacitive touch input robot in order to remote access my iPad but I'm having trouble describing a correct kind of robot. I would like to keep lag down to an additional 60ms so ...
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3answers
2k views

VeX - Keeping arm at an angle

So my team made a Vex robot for the toss-up competition, but we need the arm up during the autonomous. The problem is that it's too heavy to stay up on its own. I was going to use encoders to count ...
2
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1answer
350 views

Flipping an old manual switch (physical one) [duplicate]

I Have an old audio amplifier that has those switches to turn it on. I'm looking for the simplest motor/robotic arm (or any other relevant component) to control this switch - eventually via Raspberry ...
5
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2answers
974 views

Udoo board + Kinect sensor?

I am wondering if it would be possible to get Kinect to work with Udoo board (Quad). I have found that there is now support for ROS + Udoo. Also saw a question asked about Xtion + Udoo which shows ...
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3answers
1k views

Algebraic and geometric in inverse kinematic

I'm just wondering that is there any case that when algebraic way can't solve the problem while the geometric can ? Cause I'm working on a 2DOF robotics arm This one, I know the length of L1 and L2, ...
4
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1answer
149 views

Defining frames for 5DOF robotics arm

For examples if i have this robotic arm: Example, for the base rotation (5th DOF in the clip at 0:58), we know that the Z axis for that joint will be the same as the Z axis for the base frame{0}, but ...
6
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1answer
286 views

Using Armatures in Morse Robotic Simulator

I'm trying to add my own robot in Morse 1.1 (using Ubuntu 12.04). I am struggling to add an armature actuator and armature pose sensor to an existing robot. Can someone please explain how this can be ...
3
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0answers
319 views

Recommendations for system to repeatedly force contact between head and desk [closed]

I frequently bang my head on my desk after performing a task poorly. I would like to eliminate the unnecessary middle step of actually performing a task poorly. As such, I would like to design a ...
6
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3answers
650 views

Is there a way to determine which degrees of freedom are lost in a robot at a singularity position by looking at the jacobian?

For a 6DoF robot with all revolute joints the Jacobian is given by: $$ \mathbf{J} = \begin{bmatrix} \hat{z_0} \times (\vec{o_6}-\vec{o_0}) & \ldots & \hat{z_5} \times (\vec{o_6}-\vec{o_5})\\ \...
3
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0answers
113 views

May I have some suggestion on inexpensive robotic arm? [closed]

I want to build some simple application. I need a 5 or 6 degrees of freedom robotic arm. The arm must have feedback, so that I can control it preciously. The arm must be able to handle at least 5 lbs. ...
2
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1answer
1k views

Effective motor type for robotic arm?

I am trying to build an arm that will have about 5 by 5 by maybe 7 or so centimeters of room for a rotary motor capable of lifting it. The joint will basically allow the arm to rotate in a single ...
6
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2answers
2k views

How to speed up robotic arm?

I need my robotic arm to ring a desk bell. I one on the maplins site usb robotic arm. It does seem very slow. What can I hack on it to boost the downwards and upwards speed. I need it hit the bell ...
2
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0answers
602 views

Making a robotic arm that can draw a circle [closed]

I am software engineering student and don't know much about hardware. I recently have started a project in my AI course. The project is playing a 3x3 tic-tac-toe game between computer and a human. ...
-2
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1answer
477 views

What is the best way to go about building a robot hand that can type on keyboard, move &click mouse, swipe touchscreens? [closed]

How would you go about building a robot that can use a computer? Type on the keyboard, move & click mouse? I am talking about physically manipulating the hardware inputs, and the robot would be ...
3
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2answers
561 views

Issues upgrading Arduino code for Kinect controlled arm from 2 servos to 4

I have arduino code for operating 2 servos, but we are using 4 servos and am having trouble getting the other 2 to talk. The program so far as I can make out is that the angles for the servos that ...
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3answers
1k views

How can I convert RGB colors to CMYK for my airbrush robot?

I am developing a robot which paints using an airbrush (3D painting). I intend to use several colors as a CMYK printer, but I do not know how to do the conversion of RGB colors in the computer to the ...
0
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1answer
631 views

What is the wire used for hand movement of robot called ? where can I find it online ?

I am looking for a specific name of the wire used for the robotic arm movement control and where can I find some of this online. I want to control it using the micro controller so please suggest some ...
6
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1answer
473 views

Stabilizing a Robot Arm at a Specified Height

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 ...
5
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2answers
2k views

How would I go about making an art drawing robot like this?

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 ...
0
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2answers
291 views

How do we make our robot work?

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 ...
9
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1answer
4k views

Building Robotic arm joint

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 ...
11
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3answers
556 views

Which is model is best for feedback control of robotic manipulators: MIMO or parallel SISO?

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 ...
8
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2answers
893 views

Getting started with robotic arm design

I would like to design a robotic arm to hold a weight X at length Y (in my case I want to hold X=2.5 lbs at Y = 4 inches). Starting out simply, I would like try building an arm with a gripper plus one ...
13
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3answers
3k views

Inter-processor communication for robotic arm

I'm building a hobby 6-DOF robotic arm and am wondering what the best way is to communicate between the processors (3-4 AVRs, 18 inches max separation). I'd like to have the control loop run on the ...
-4
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2answers
282 views

Lightweight, commercially available robotic arms [closed]

I was wondering what options are there in terms of lightweight (< 5 lbs) robotic arms. I see Robai Cyton Gamma 300, and CrustCrawler AX18 look like interesting options. What lightweight arms do ...
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4answers
425 views

Processor and command interface preference for a robot arm

I want to build a robot arm that'll be approximately 1.25 meter long and will be able to lift up to 2 kilograms. It'll have 6 dof and it is an expensive project. And most importantly, i am the only ...
20
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3answers
13k views

How can the inverse kinematics problem be solved?

The forward kinematics of a robot arm can be solved easily. We can represent each joint using Denavit–Hartenberg transformation matrices. For example, if the $i^{th}$ joint is a linear actuator, it ...
29
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5answers
59k views

Which type of actuator will be suitable for a very strong robot arm?

I wish to build a robotic arm that can lift a useful amount of weight (such as 3-6 kg on an arm that can extend to approx 1.25 meters). What actuators are available to accomplish this? The main ...

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