Re: [Emc-users] How to home a joint when position depends on other joint?

2013-12-14 Thread Marius Alksnys
I tried simple configuration (without offset component) too. And it worked perfectly. -- Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how

Re: [Emc-users] How to home a joint when position depends on other joint?

2013-12-14 Thread andy pugh
On 14 December 2013 08:08, Marius Alksnys marius.alks...@gmail.com wrote: I tried simple configuration (without offset component) too. And it worked perfectly. If it goes wrong with the offset component but works without it, then I suspect that the problem is with the execution order of the

Re: [Emc-users] How to home a joint when position depends on other joint?

2013-12-14 Thread Marius Alksnys
Thanks, I will try it. This is something what I was thinking about and even tried to swap pid and offset addf lines, but I never found importance of addf order in documentation, which would be worth noting there.. On 2013.12.14 13:12, andy pugh wrote: On 14 December 2013 08:08, Marius Alksnys

Re: [Emc-users] How to home a joint when position depends on other joint?

2013-12-14 Thread Gene Heskett
On Saturday 14 December 2013 11:38:26 Marius Alksnys did opine: Thanks, I will try it. This is something what I was thinking about and even tried to swap pid and offset addf lines, but I never found importance of addf order in documentation, which would be worth noting there.. It is

Re: [Emc-users] How to home a joint when position depends on other joint?

2013-12-14 Thread Kenneth Lerman
What you want to do is perform a topological sort (man tsort) on the graph. It should be simple enough to write a tool to do that. Ken On 12/14/2013 12:18 PM, Gene Heskett wrote: On Saturday 14 December 2013 11:38:26 Marius Alksnys did opine: Thanks, I will try it. This is something what

[Emc-users] How to home a joint when position depends on other joint?

2013-12-13 Thread Marius Alksnys
6 axis articulated robot. Its 5th and 6th joint motion is transferred from servo motor to the end by belts. Controlling 1-5 joints is trivial, but 6th one has to be offset by 5th position. This means you have to rotate both 5th and 6th motors equally to move only 5th joint. ( BTW, this is the

Re: [Emc-users] How to home a joint when position depends on other joint?

2013-12-13 Thread Viesturs Lācis
2013/12/13 Marius Alksnys marius.alks...@gmail.com 6 axis articulated robot. Its 5th and 6th joint motion is transferred from servo motor to the end by belts. Controlling 1-5 joints is trivial, but 6th one has to be offset by 5th position. This means you have to rotate both 5th and 6th

Re: [Emc-users] How to home a joint when position depends on other joint?

2013-12-13 Thread Sebastian Kuzminsky
On 12/13/13 07:42 , Marius Alksnys wrote: 6 axis articulated robot. Its 5th and 6th joint motion is transferred from servo motor to the end by belts. Controlling 1-5 joints is trivial, but 6th one has to be offset by 5th position. This means you have to rotate both 5th and 6th motors equally

Re: [Emc-users] How to home a joint when position depends on other joint?

2013-12-13 Thread Gene Heskett
On Friday 13 December 2013 13:50:44 Marius Alksnys did opine: 6 axis articulated robot. Its 5th and 6th joint motion is transferred from servo motor to the end by belts. Controlling 1-5 joints is trivial, but 6th one has to be offset by 5th position. This means you have to rotate both 5th

Re: [Emc-users] How to home a joint when position depends on other joint?

2013-12-13 Thread andy pugh
On 13 December 2013 19:14, Gene Heskett ghesk...@wdtv.com wrote: My homing uses resolver index. The problem is that I get following errors even when MIN_FERROR is 60 degrees. And I see that resolver position feedback signal makes a step when homing. Yikes. I know little to zip about

Re: [Emc-users] How to home a joint when position depends on other joint?

2013-12-13 Thread Gene Heskett
On Friday 13 December 2013 18:17:43 andy pugh did opine: On 13 December 2013 19:14, Gene Heskett ghesk...@wdtv.com wrote: My homing uses resolver index. The problem is that I get following errors even when MIN_FERROR is 60 degrees. And I see that resolver position feedback signal makes a