# Tag Info

## Hot answers tagged industrial-robot

7 votes
Accepted

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

Not by merely looking at Jacobian but by looking at the Singular Value Decomposition of the Jacobian, one can see the degrees of freedom that are lost, if lost. Of course it technically somehow turns ...
6 votes

### Is there any robot stability control equation that describes the relation between velocity of the robot and its orientation?

That's not obvious. If I'm in a tank, going 0.5 km/h, I don't need to slow down at all. If I'm in a bobsled going 100km/h and the track banks, I don't need to slow down at all. When you steer, you ...
• 14.7k
6 votes
Accepted

### Extended Kalman Filter in robotics - Worth it?

The Kalman filter is an optimal linear filter in the presence of Gaussian noise. It is optimal in the sense that it minimizes the mean-squared error. This means that the covariance of the estimated ...
• 340
5 votes

### What is the difference between a CNC router versus a CNC mill?

TL;DR CNC routers move the tool while CNC mills move the workpiece, but this is a matter of common usage and not based on hard definitions. A router (in the woodworking sense) is just a rotary tool ...
• 10.8k
5 votes
Accepted

### Comparing industrial robot arms

For example, how does price vary with precision, speed, reach and strength? The price vary a lot, from a couple of hundreds of bucks to hundreds of thousands of dollars ( Willow Garage's the one-...
• 168
4 votes
Accepted

### 12V compressor and air pressure control

Whether a single 3-way, 2-position pneumatic valve (typically with a work port, an input port, and an exhaust port ‒ see page 3 of nationalpneumatic.com's pdf about valves) will suffice depends on ...
4 votes

### What is the best software/package to draw the robot manipulator and indicate DH parameters and different axes?

Use RoboAnalyzer. It will help you understand what you need.
• 91
4 votes

### What is the difference between a CNC router versus a CNC mill?

Not a big fan of using head motions or type of spindle to define the difference, as there are lots of exceptions to each. Many 5-axis mills move the head in various ways beyond just Z. Datron makes ...
4 votes
Accepted

### How are huge industrial robots powered?

Industrial Robots with having as aim manipulation of large objects are powered electrically in almost all cases (30-40 years ago there have been popular hydraulic variants). Industrial robots are ...
• 6,412
4 votes
Accepted

### Do you have to stop a programmable logic controller to update its logic?

The function you are looking is called online change (e.g. Beckhoff Online Change), at least by some PLC Manufacturers. If you change a few blocks (in case of FBD) or a few contacts (in case of LAD) ...
• 6,412
4 votes
Accepted

### Definition of payload for industrial robots

If you only consider the simple physics of the problem you are completely right, it should be able to move lower payloads at lower velocities and accelerations. However, the maximum payload can only ...
• 6,412
3 votes

### How are industrial robotics components purchased?

For an industrial setting funds are not unlimited but the value of the machine to the process is known or predicted and if the benefit is greater than the cost, the funds are sought. Relationships ...
• 4,225
3 votes
Accepted

• 166
2 votes

### How to implement PID control for robotic arm?

As @acs said, PID control is used for individual joint control. And you ignore all non-linearities. And typically this is good enough. Sure each joint's control isn't completely optimal, but they ...
• 5,215

Only top scored, non community-wiki answers of a minimum length are eligible