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Robotics : Recent Questions and Answers

Find answers to your questions about Robotics or help others by answering their Robotics questions.

KUKA Robotics API IDE

I've got Robotics API library, a demo program and a robot. I want to develop an app for it. The best solution is offline development on some kind of simulator....

Asked on 12/04/2021 by Nikita Semenov

3 answer

Motor encoders randomly start counting backward, then go back to normal

I am making an Arduino-controlled differential drive robot, and I am having the following problems:the encoders built into the motors are being used for measuring the rotary displacement, and while...

Asked on 11/30/2021 by Abdullah Ansari

2 answer

How to calculate power supply requirements for Closed Loop Stepper Motors?

I have a CNC Router table that has 4 Nema 23 stepper motor (open loop).I want to upgrade the machine and use 4 Neam 34 Closed Loop Steppers. These...

Asked on 11/28/2021 by oscarm

1 answer

ROS sensor implementation

From this page, there are lots of sensors to be used in ros robots. http://wiki.ros.org/Sensors But, I could not install any of them to the robots in...

Asked on 11/28/2021

1 answer

Design optimization method using indices

There are several methods like manipulability and conditioning index for design optimization kinematics performance, but these methods rely on the singular values of the jacobian matrix. I described kinematics by...

Asked on 11/28/2021 by hamedmh

1 answer

Why can't the Controller Spawner find the expected controller_manager ROS interface?

I have a quadruped robot with base link (BL), 4 child links called LFT, LFT, RFT, RFT, T for thigh and each having 4 children with name LFC, LBC, RFC,...

Asked on 11/28/2021 by Shubham Wani

1 answer

Bias correction for multiple sensor fusion through Kalman Filtering

I am learning Kalman Filters and was working on a simple example: Temperature measurement of a room by using 4 thermometers(different biases and noises) if i consider that there is...

Asked on 11/28/2021

1 answer

Why aren't my 4x 612 RPM motors driving with only 12 lb load?

I have purchased x4 612 RPM actobotics motors. Every time I try to drive the motors on ground, the motors stall, as if the torque was too low to drive....

Asked on 10/03/2021

2 answer

State propagation from uncertain control input

Consider a nonlinear system $x(k+1)=f(x(k),u(k))$, where $x(k)inmathbb{R}^{n}$ is the state, $u(k)inmathbb{R}^m$ is the control input. Here $u(k)$ is normally distributed RV with mean $mu_u(k)$ and...

Asked on 10/03/2021 by Astghik Hakobyan

1 answer

Inverse kinematics for 4-DOF Articualted manipluator

I am trying to find out the math formulas for Inverse Kinematics for a 4-DOF articulated manipulator. By Googling I...

Asked on 10/03/2021 by Oualid

2 answer

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