What's wrong with german robots nowadays? Question to KUKA|prc

Replies to This Discussion

Permalink Reply by David Rutten on January 31, 2014 at 8:09am

What's the error message?

--

David Rutten

david@mcneel.com

Permalink Reply by Johannes Braumann on January 31, 2014 at 9:04am

Hello Ahmed,

What version of KUKA|prc are you using? And do "normal" (e.g. LIN and PTP movements) work OK?

Please also take a look at that example, posted on our forum: http://forum.robotsinarchitecture.org/index.php/topic,23.0.html

If the problem persists, please get in touch with me via the Robots in Architecture forum or johannes [@] robotsinarchitecture.org

Best,

Johannes

Permalink Reply by Ahmed Hossam on January 31, 2014 at 9:38am

Spline and Linear movement components are working fine. I haven't used PTP movement component yet ... Maybe because I don't understand, what PTP stands for. All what I want is, that the robot spindle moves on a simple circle. Is that much to ask for? (Ist das viel verlangt?) :D

http://www.vidup.de/v/UBsFR/

Permalink Reply by Johannes Braumann on January 31, 2014 at 9:50am

Actually it's too much to ask because the robot defines a circle with three points. If the end and start point are the same you can no longer uniquely define a circle (try it out with the Grasshopper "Circle 3Pt" component).

There is an option for defining a circle independently of the arc at the robot (CA), but I've never seen it used before. Will try to get it into KUKA|prc soon.

For now you will have to split a full circle into multiple arcs.

Best,

Johannes

Permalink Reply by Johannes Braumann on January 31, 2014 at 9:51am

...alternatively divide it into a sequence of points - uses up more memory, but at the same time is more predictable!

Permalink Reply by Ahmed Hossam on January 31, 2014 at 10:58am

Thank you for your answer, but it is still not working ...

I still believe in robots.

I defined the points A,B and C by right clicking on the component (circle 3pt) and choosing the option "set one point" ...

Permalink Reply by Johannes Braumann on January 31, 2014 at 11:00am

Hello,

If you are using a 360 degree circle it won't work with this strategy at all (refer to my post above). Please either post your definition here or send it to me via eMail so that I can take a look at it!

Best,

Johannes

Permalink Reply by Ahmed Hossam on January 31, 2014 at 11:13am

What did you mean with "try it out with the Grasshopper "Circle 3Pt" component"?

I tried this and it is working!

Attachments:

• circular movement.gh, 14 KB

Permalink Reply by Johannes Braumann on January 31, 2014 at 11:29am

Great!

Regarding the Circle 3Pt component I was just pointing out that it is a geometrical issue and not one that applies only to robots and/or KUKA|prc.

But I'm glad that you got it to work!

Permalink Reply by Ahmed Hossam on January 31, 2014 at 11:48am

you are too high for me ... I didn't get yet, what you were trying to point out about the component :D ... but never mind, I'm glad too :D