Re: [Emc-users] Ladder question
2012/8/19 Chris Morley chrisinnana...@hotmail.com: 2) can I make larger that piece of section display in which I can draw the ladder logics? now it consists of several blocks and it seems pretty inconvenient. No, and there is a reason. ladder evaluates the logic one rung at a time. it reads all the inputs, does all the logic, then sets all the outputs of the _current_ rung then works on the next rung. While it is possible to have more then one line of logic in a single rung, this isn't really bullet proof. Most of the time it's fine. But when the output of one line feeds the input of another line (in the same rung) you can get bitten. A section is a way to separate different functions to help organize a program. It also allows one to use sequential programs or subroutines. Thank You very much for the explanation! This should go to the manuals or at least ladder-newbie wiki page... Now I start to understand the way I should arrange the order of all the logics. -- Viesturs If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Joint position from VCP
Hello, folks! Is there a way to set commanded position for particular joint from VCP widget? The machine I am building has 1 joint that positions one of the saw blades. I would like to be able to set its position from VCP (most probably pyvcp as it is easier for me to set up), but I have difficulties finding, if there are any HAL pins that I can use to feed in the requested position for particular joint. All the axis.n.joint-pos-cmd, axis.n.motor-pos-cmd and halui.axis.n.pos-commanded are all OUT pins. The thing is that I see serious difficulties to ensure that MDI commands would be used correctly, it has to be as idiot-proof as possible. -- Viesturs If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Joint position from VCP
On 19 August 2012 13:08, Viesturs Lācis viesturs.la...@gmail.com wrote: Is there a way to set commanded position for particular joint from VCP widget? I am fairly sure that the answer is No. The answer is probably to have the stepgen or PID driven directly by the VCP and to not involve MOTION at all. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Joint position from VCP
2012/8/19 andy pugh bodge...@gmail.com: On 19 August 2012 13:08, Viesturs Lācis viesturs.la...@gmail.com wrote: Is there a way to set commanded position for particular joint from VCP widget? I am fairly sure that the answer is No. The answer is probably to have the stepgen or PID driven directly by the VCP and to not involve MOTION at all. Thanks! I thought about that too. The thing is that the joint needs to be homed before work. So that would require some additional Ladder logic, but I have no idea, how to do that - it would be easy with stepgen in velocity mode, but I think I need it to be in position mode, in order to position that saw blade pretty precisely - within 0,2-0,3 mm range. How can I duplicate homing routine then? -- Viesturs If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Joint position from VCP
You could roll your own in GladeVCP... have you seen my tutorials on that? John On 8/19/2012 6:29 AM, Viesturs Lācis wrote: 2012/8/19 andy pugh bodge...@gmail.com: On 19 August 2012 13:08, Viesturs Lācis viesturs.la...@gmail.com wrote: Is there a way to set commanded position for particular joint from VCP widget? I am fairly sure that the answer is No. The answer is probably to have the stepgen or PID driven directly by the VCP and to not involve MOTION at all. Thanks! I thought about that too. The thing is that the joint needs to be homed before work. So that would require some additional Ladder logic, but I have no idea, how to do that - it would be easy with stepgen in velocity mode, but I think I need it to be in position mode, in order to position that saw blade pretty precisely - within 0,2-0,3 mm range. How can I duplicate homing routine then? -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Joint position from VCP
2012/8/19 John Thornton bjt...@gmail.com: You could roll your own in GladeVCP... have you seen my tutorials on that? Yes, I have played a little with Glade. It is really nice, but there is some learning curve for me to climb. I already am over deadline with this machine, so I am interested to spend as little time as possible on this. OTOH that would be nice to create my own standalone gui, since I do not need any g-code preview and other stuff - just few buttons and maybe some other widgets. All those buttons and preview in Axis would only distract the operator as they would not be used. Anyway, I have an issue of reproducing homing routine either in HAL or in Ladder. Can anyone share some advice, how to do that? I do not really understand, how can I reset stepgen position to 0 or whatever fixed value, based on the state of input from homing switch (rising and falling edges, to be precise). There will be some offset between pre-homing and post-homing stepgen positions, which I do not understand, how to handle. Has anyone already done that? -- Viesturs If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Joint position from VCP
Have you looked at halui to home the joint? Have you seen this? http://linuxcnc.org/index.php/english/component/kunena/?func=viewcatid=48id=23317limit=6 On 8/19/2012 7:00 AM, Viesturs Lācis wrote: 2012/8/19 John Thornton bjt...@gmail.com: You could roll your own in GladeVCP... have you seen my tutorials on that? Yes, I have played a little with Glade. It is really nice, but there is some learning curve for me to climb. I already am over deadline with this machine, so I am interested to spend as little time as possible on this. OTOH that would be nice to create my own standalone gui, since I do not need any g-code preview and other stuff - just few buttons and maybe some other widgets. All those buttons and preview in Axis would only distract the operator as they would not be used. Anyway, I have an issue of reproducing homing routine either in HAL or in Ladder. Can anyone share some advice, how to do that? I do not really understand, how can I reset stepgen position to 0 or whatever fixed value, based on the state of input from homing switch (rising and falling edges, to be precise). There will be some offset between pre-homing and post-homing stepgen positions, which I do not understand, how to handle. Has anyone already done that? -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Joint position from VCP
On 19 August 2012 14:00, Viesturs Lācis viesturs.la...@gmail.com wrote: Anyway, I have an issue of reproducing homing routine either in HAL or in Ladder. Can anyone share some advice, how to do that? I do not really understand, how can I reset stepgen position to 0 or whatever fixed value, based on the state of input from homing switch (rising and falling edges, to be precise). There will be some offset between pre-homing and post-homing stepgen positions, which I do not understand, how to handle. The simplest way is to store the current stepen counts as an offset when the home switch is tripped (sample-hold, or something similar in the Python code) then add that to the stepgen commanded value. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Joint position from VCP
On 19 August 2012 14:14, John Thornton bjt...@gmail.com wrote: Have you looked at halui to home the joint? Have you seen this? http://linuxcnc.org/index.php/english/component/kunena/?func=viewcatid=48id=23317limit=6 Or, for that matterr: http://linuxcnc.org/index.php/english/component/kunena/?func=viewcatid=24id=22572limit=6start=6#22961 Which has a very simple motion-controller included. Gabriel Willen (WillenCMD on the IRC) has already built a sharpening machine using just HAL and Glade. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Joint position from VCP
2012/8/19 andy pugh bodge...@gmail.com: On 19 August 2012 14:00, Viesturs Lācis viesturs.la...@gmail.com wrote: Anyway, I have an issue of reproducing homing routine either in HAL or in Ladder. Can anyone share some advice, how to do that? I do not really understand, how can I reset stepgen position to 0 or whatever fixed value, based on the state of input from homing switch (rising and falling edges, to be precise). There will be some offset between pre-homing and post-homing stepgen positions, which I do not understand, how to handle. The simplest way is to store the current stepen counts as an offset when the home switch is tripped (sample-hold, or something similar in the Python code) then add that to the stepgen commanded value. I am not sure that I understand, how did You mean that. But I _think_ that I figured a way, how to solve this, I will try to check it later this evening. -- Viesturs If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Joint position from VCP
2012/8/19 andy pugh bodge...@gmail.com: On 19 August 2012 14:14, John Thornton bjt...@gmail.com wrote: Have you looked at halui to home the joint? Have you seen this? http://linuxcnc.org/index.php/english/component/kunena/?func=viewcatid=48id=23317limit=6 Or, for that matterr: http://linuxcnc.org/index.php/english/component/kunena/?func=viewcatid=24id=22572limit=6start=6#22961 Which has a very simple motion-controller included. John, Andy, thank You for the links! It starts to seem that I might try to go with a small GladeVCP as the only GUI for this machine. Andy, in Your post You wrote: If you extract the attached file into the configs directory and then navigate into the directory in a terminal window and halrun -I -f laser.hal How can I tell Ubuntu to do these 2 commands right after startup? cd /home/machine/linuxcnc/configs/hm2_stepper halrun -I -f whatever.hal I guess that it requires to create some script, but I have no idea, what else should be added there. Can somebody point me to a place, where it is explained in a simple way? BTW, where can I see, what do those -l and -f mean? -- Viesturs If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Joint position from VCP
On 19 August 2012 15:04, Viesturs Lācis viesturs.la...@gmail.com wrote: I am not sure that I understand, how did You mean that. Stepgen has a counts output. You need to store that value somewhere in HAL at the point when the home switch is tripped. (alternatively, store the position-fb value). That value is your home position in absolute stepgen space. All you need to do is to add that home position to the output from your VCP. loadrt sample_hold loadrt sum2 addf... net homed sample_hold.0.hold net stepgen.0.counts sample-hold.0.in net home-counts sample-hold.0.out sum2.0.in0 net VCP-pos-out sum2.0.in1 setp sum2.0.gain0 [AXIS_N]STEPGEN_SCALE The homed signal probably needs to be set by a latch on the home switch, and reset from the VCP. The VCP can generate the homing moves in userspace, as the actual home logic happens in realtime. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Joint position from VCP
On 19 August 2012 15:09, Viesturs Lācis viesturs.la...@gmail.com wrote: How can I tell Ubuntu to do these 2 commands right after startup? cd /home/machine/linuxcnc/configs/hm2_stepper halrun -I -f whatever.hal Probably in .bashrc. (or some other startup script magic). BTW, where can I see, what do those -l and -f mean? http://linuxcnc.org/docs/html/man/man1/halcmd.1.html -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Joint position from VCP
The problem I've run across with trying to use halrun is how to shut it down when finished. I have however stumbled across how to install your custom gui and run it from linuxcnc without jumping through a bunch of hoops. http://gnipsel.com/linuxcnc/gui/gui03b.html A goodle search for ubuntu how to run a program on startup seems to come up with the answer you seek. John On 8/19/2012 8:09 AM, Viesturs Lācis wrote: 2012/8/19 andy pugh bodge...@gmail.com: On 19 August 2012 14:14, John Thornton bjt...@gmail.com wrote: Have you looked at halui to home the joint? Have you seen this? http://linuxcnc.org/index.php/english/component/kunena/?func=viewcatid=48id=23317limit=6 Or, for that matterr: http://linuxcnc.org/index.php/english/component/kunena/?func=viewcatid=24id=22572limit=6start=6#22961 Which has a very simple motion-controller included. John, Andy, thank You for the links! It starts to seem that I might try to go with a small GladeVCP as the only GUI for this machine. Andy, in Your post You wrote: If you extract the attached file into the configs directory and then navigate into the directory in a terminal window and halrun -I -f laser.hal How can I tell Ubuntu to do these 2 commands right after startup? cd /home/machine/linuxcnc/configs/hm2_stepper halrun -I -f whatever.hal I guess that it requires to create some script, but I have no idea, what else should be added there. Can somebody point me to a place, where it is explained in a simple way? BTW, where can I see, what do those -l and -f mean? -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Joint position from VCP
changing my search string to ubuntu 10.04 how to run a program on startup brings up even better results On 8/19/2012 8:09 AM, Viesturs Lācis wrote: 2012/8/19 andy pugh bodge...@gmail.com: On 19 August 2012 14:14, John Thornton bjt...@gmail.com wrote: Have you looked at halui to home the joint? Have you seen this? http://linuxcnc.org/index.php/english/component/kunena/?func=viewcatid=48id=23317limit=6 Or, for that matterr: http://linuxcnc.org/index.php/english/component/kunena/?func=viewcatid=24id=22572limit=6start=6#22961 Which has a very simple motion-controller included. John, Andy, thank You for the links! It starts to seem that I might try to go with a small GladeVCP as the only GUI for this machine. Andy, in Your post You wrote: If you extract the attached file into the configs directory and then navigate into the directory in a terminal window and halrun -I -f laser.hal How can I tell Ubuntu to do these 2 commands right after startup? cd /home/machine/linuxcnc/configs/hm2_stepper halrun -I -f whatever.hal I guess that it requires to create some script, but I have no idea, what else should be added there. Can somebody point me to a place, where it is explained in a simple way? BTW, where can I see, what do those -l and -f mean? -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Joint position from VCP
On 19 August 2012 15:48, John Thornton bjt...@gmail.com wrote: The problem I've run across with trying to use halrun is how to shut it down when finished. I have however stumbled across how to install your custom gui and run it from linuxcnc without jumping through a bunch of hoops. http://gnipsel.com/linuxcnc/gui/gui03b.html It might be worth noting that this is a slightly different approach, a new GUI that replaces Axis / Touchy / Mini etc. This still has all the rest of LinuxCNC behind it (which might be useful). That includes Motion, the Interpreter, etc. The other way has none of that, just a realtime environment and only the components that you explicitly load. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Joint position from VCP
I've only been able to figure out how to run my GUI with halrun from a terminal which is not very elegant as you have to type in exit or quit to unload the real time environment unless you know the secret to halrun closing when the GUI closes? The new GUI doesn't replace the others it just lives beside them... On 8/19/2012 9:20 AM, andy pugh wrote: On 19 August 2012 15:48, John Thornton bjt...@gmail.com wrote: The problem I've run across with trying to use halrun is how to shut it down when finished. I have however stumbled across how to install your custom gui and run it from linuxcnc without jumping through a bunch of hoops. http://gnipsel.com/linuxcnc/gui/gui03b.html It might be worth noting that this is a slightly different approach, a new GUI that replaces Axis / Touchy / Mini etc. This still has all the rest of LinuxCNC behind it (which might be useful). That includes Motion, the Interpreter, etc. The other way has none of that, just a realtime environment and only the components that you explicitly load. -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Joint position from VCP
On 19 August 2012 16:33, John Thornton bjt...@gmail.com wrote: The new GUI doesn't replace the others it just lives beside them... What do you get if you only put your GUI in the INI? -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Joint position from VCP
You mean if I don't copy the files to the installed folders? On 8/19/2012 9:42 AM, andy pugh wrote: On 19 August 2012 16:33, John Thornton bjt...@gmail.com wrote: The new GUI doesn't replace the others it just lives beside them... What do you get if you only put your GUI in the INI? -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Joint position from VCP
On 19 August 2012 18:20, John Thornton bjt...@gmail.com wrote: What do you get if you only put your GUI in the INI? You mean if I don't copy the files to the installed folders? Perhaps I should have said If you put only your GUI in the INI ie, can yours be the only GUI? -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Joint position from VCP
I think I understand but the accent gave me a rough time... I'm not running my GUI on top of or embedded in Axis or any other LinuxCNC GUI. DISPLAY=MyGui So yes it is running stand alone with all of LinuxCNC available to my GUI via the python interface. On 8/19/2012 11:53 AM, andy pugh wrote: On 19 August 2012 18:20, John Thornton bjt...@gmail.com wrote: What do you get if you only put your GUI in the INI? You mean if I don't copy the files to the installed folders? Perhaps I should have said If you put only your GUI in the INI ie, can yours be the only GUI? -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Joint position from VCP
Hey Viesturs, I have successfully done this twice, its fairly simple. I would be more than happy to help you through it. Including a homing process. I would suggest only using glade for the User Interface, not to handle any time based commands. Found this out very quickly. Its really easy to write a hal component using halcomp and attach the python handlers to those i/o pins you create. If you would like to schedule a time to chat. Please let me know. I have been dealing with some family problems as of late, and has cut down on my IRC time. But these issues should be resolved quickly Thanks Gabe On Sun, Aug 19, 2012 at 6:08 AM, Viesturs Lācis viesturs.la...@gmail.comwrote: Hello, folks! Is there a way to set commanded position for particular joint from VCP widget? The machine I am building has 1 joint that positions one of the saw blades. I would like to be able to set its position from VCP (most probably pyvcp as it is easier for me to set up), but I have difficulties finding, if there are any HAL pins that I can use to feed in the requested position for particular joint. All the axis.n.joint-pos-cmd, axis.n.motor-pos-cmd and halui.axis.n.pos-commanded are all OUT pins. The thing is that I see serious difficulties to ensure that MDI commands would be used correctly, it has to be as idiot-proof as possible. -- Viesturs If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Joint position from VCP
2012/8/19 John Thornton bjt...@gmail.com: I think I understand but the accent gave me a rough time... I'm not running my GUI on top of or embedded in Axis or any other LinuxCNC GUI. DISPLAY=MyGui So yes it is running stand alone with all of LinuxCNC available to my GUI via the python interface. Ok, that sounds good. This whole create Your own standalone glade GUI seems pretty doable, except for that python handler file. I took a look at it and did understand approximately nothing. -- Viesturs If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Joint position from VCP
2012/8/19 Gabriel Willen gabewil...@gmail.com: Hey Viesturs, I have successfully done this twice, its fairly simple. I would be more than happy to help you through it. Including a homing process. Thank You for the offer! I appreciate that! Its really easy to write a hal component using halcomp and attach the python handlers to those i/o pins you create. I feel familiar with comp, I have customized HAL components for some of my machines. But attach python handlers part is totally different planet for me. If you would like to schedule a time to chat. Please let me know. How about after some 10-15 minutes? I will restart to Ubuntu and find some irc application. -- Viesturs If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Joint position from VCP
Basically there are a dozen lines that do magic then you just add a define for each signal you create in the Gtk Interface Designer to do the function you want. The most confusing thing for me is there is so many ways to get to the end you can get lost along the way... What controls does your machine need? iirc you need to home an axis On 8/19/2012 12:51 PM, Viesturs Lācis wrote: 2012/8/19 John Thornton bjt...@gmail.com: I think I understand but the accent gave me a rough time... I'm not running my GUI on top of or embedded in Axis or any other LinuxCNC GUI. DISPLAY=MyGui So yes it is running stand alone with all of LinuxCNC available to my GUI via the python interface. Ok, that sounds good. This whole create Your own standalone glade GUI seems pretty doable, except for that python handler file. I took a look at it and did understand approximately nothing. -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Joint position from VCP
2012/8/19 Viesturs Lācis viesturs.la...@gmail.com:
2012/8/19 Gabriel Willen gabewil...@gmail.com:
Its really easy to write a hal component using halcomp and
attach the python handlers to those i/o pins you create.
I feel familiar with comp, I have customized HAL components for some
of my machines.
Sorry for bothering, but it is late and I am not sure, if I have got
it all right, so I would appreciate if anyone could take a look at my
little piece of code and share some insights, if I am on the right
track.
I took John's THC module and slightly edited it, so that it should:
1) start homing when home input bit goes true;
2) increase offset value in positive direction until home_sw_in goes true;
3) retract ~3 times slower until home_sw_in goes false and set homed bit true;
4) keep the previous offset value untouched, when home bit is false;
I will have classicladder logic, which will set home bit true, when
user will press appropriate button and will reset it to false, when
homed bit goes true. That way user can always rehome by pressing
that button again.
Here is all the contents of module:
component homing Module to home a simple stepgen controlled motor;
description
Based on John Thornton's THC module
;
author Viesturs Lacis;
license GPLv2 or greater;
option singleton yes;
// Input Pins
pin in bit home Do homing;
pin in bit home_sw_in Homing switch input;
// Output Pins
pin out float offset Stepgen position offset;
pin out bit homed Indicates, when homing is completed;
// Parameters
param rw float home_vel Home search velocity in user units per second;
// Global Variables
variable bit home1 Indicates, when home search has succeeded;
function _;
;;
#include rtapi_math.h
FUNCTION(_) {
if(home !home_sw_in){
offset += (0,001*home_vel);
}
if(home home_sw_in){
offset -= (0,0003*home_vel);
home1 = 1;
}
if(home1 !home_sw_in){
homed=1;
}
}
--
Viesturs
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto
--
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and
threat landscape has changed and how IT managers can respond. Discussions
will include endpoint security, mobile security and the latest in malware
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Joint position from VCP
2012/8/19 John Thornton bjt...@gmail.com: Basically there are a dozen lines that do magic then you just add a define for each signal you create in the Gtk Interface Designer to do the function you want. The most confusing thing for me is there is so many ways to get to the end you can get lost along the way... What controls does your machine need? iirc you need to home an axis Yes, I need to home one joint, the rest is intended to be handled by classicladder. I just sent another message with question, if I am on the right track for the HAL component to do the homing. The idea is to sum2 that offset and output from scale widget in VCP to get the final stepgen position. So in GladeVCP I would like to put one button to initiate the homing, one scale widget to set the position for that joint, then some LEDs to show the status of sensors just for operator to check if everything is ok. I _think_ that this should do. -- Viesturs If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] solder paste
On Sat, 2012-08-18 at 06:18 -0500, ceen...@in-front.com wrote: I found a high pressure pump (up to 40,000PSI) that may work with solder paste. These are readily available on ebay as high pressure liquid chromatography (HPLC) pumps. A description is here: http://www.lcresources.com/resources/getstart/2b01.htm Even if a standard Waters style pump has geometry too small for solder paste it would not be too difficult to make a slightly larger pump with check valves specifically designed for solder paste. OTOH it is a $100-$200 experiment to see if a Waters pump would work because they typically use a sapphire piston and sapphire check valve balls for high pressure precise metering. Kind of a neat design. Dennis HPLC pumps are made to deliver precise flows of organic (pretty much) liquids. Even suspended particulates are going to mess with the valving. Classically, the mobile phase should pass thru a millipore filter; probably .3 um. Sorry to be a wet blanket. Dave -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] solder paste
Thanks Dave. Thought I would throw it out there. I don't have any experience with a HPLC pump. What if the geometry were larger and the check valves could cope with a suspended solid? Think on the scale of a small hydraulic valve body. Dennis HPLC pumps are made to deliver precise flows of organic (pretty much) liquids. Even suspended particulates are going to mess with the valving. Classically, the mobile phase should pass thru a millipore filter; probably .3 um. Sorry to be a wet blanket. Dave -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] solder paste
On Sun, 2012-08-19 at 20:39 -0500, ceen...@in-front.com wrote: Thanks Dave. Thought I would throw it out there. I don't have any experience with a HPLC pump. What if the geometry were larger and the check valves could cope with a suspended solid? Think on the scale of a small hydraulic valve body. Dennis HPLC pumps are made to deliver precise flows of organic (pretty much) liquids. Even suspended particulates are going to mess with the valving. Classically, the mobile phase should pass thru a millipore filter; probably .3 um. Sorry to be a wet blanket. Dave Dennis: I think that is a question for an engineer. I just used an HPLC for analysis of low levels of Vit A in animal feeds. There are really no wrong questions ... how else does on learn? Questions are much cheaper than an expensive HPLC pump. If you can take a look as some of the newer colored (paint/dye) heads in HP printers. Cute technology IIRC. Dave Dave -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] solder paste
Hi Dave, That's funny. I am an engineer but opinions and others' expertise are always welcome. That is how I learn. I found some inexpensive HPLC pumps on ebay but most are sold as-is. You don't know if the seals are any good and if some yahoo like me tried to push solder paste through it...well who knows what shape the pump is in. I do have a larger pump I purchased from the 3M surplus store in St. Paul, MN. The pump is a screw piston type and is rated to somewhere near 30,000 PSI. The assembly had a bunch of high pressure proportional valves and stainless tubing. The pump cylinder is probably 5 cubic inches. Quite large for a solder paste dispenser. I have not looked into HP's paint heads. Sounds interesting because one would think the paint media is a bit thicker than ink. The older inkjet heads won't work because the ones I'm familiar with heat up a small thin film resistor to boil a spec of ink and this heated ink blows through a small orifice to the paper. If I boiled solder paste I would have boiled solder paste. Eventually I will find something that will work. This is the idea kicking phase at the moment. Dennis Dennis: I think that is a question for an engineer. I just used an HPLC for analysis of low levels of Vit A in animal feeds. There are really no wrong questions ... how else does on learn? Questions are much cheaper than an expensive HPLC pump. If you can take a look as some of the newer colored (paint/dye) heads in HP printers. Cute technology IIRC. Dave -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
