Re: [Emc-users] Question about plasma
I'm using M66 and never thought of using motion.spindle-at-speed, seems like an elegant solution. At the present time the timeout on M66 will allow the torch to carry on even if not lit... not sure if this it good or bad. I'll try the motion.spindle.at-speed when I get a chance... John Viesturs Lācis wrote: Hello! I have to propose a solution to control a plasma table that has THC-300. I have been searching for some useful information: I found these schematics: http://git.linuxcnc.org/gitweb?p=emc2.git;a=blob_plain;hb=HEAD;f=configs/plasma-thc/thc300.odg Honestly, I somehow do not understand, why is all that necessary. In this thread http://www.linuxcnc.org/component/option,com_kunena/Itemid,20/func,view/id,9070/catid,10/limit,6/limitstart,0/lang,english/ I found that John Thornton wrote a thcud.comp component - much simplier and easier to understand. I have a question: If THC-300 send out ARC OK signal, would it make sense connecting it to motion.spindle-at-speed pin? What I would like to get is: M3 command turns on the torch and EMC waits, until arc is closed and then starts movement. I know that it can be done with subroutines or M1xx commands or simply by using M66 command, but I would like it to be set up in a nice fashion. Since I am convinced this already has been done, there is no need to reinvent the wheel... Plasma table owners, could You, please, share Your solutions or insights for this? I would especially appreciate any tips/advices about THC300. Thanks in advance! Viesturs -- vRanger cuts backup time in half-while increasing security. With the market-leading solution for virtual backup and recovery, you get blazing-fast, flexible, and affordable data protection. Download your free trial now. http://p.sf.net/sfu/quest-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- vRanger cuts backup time in half-while increasing security. With the market-leading solution for virtual backup and recovery, you get blazing-fast, flexible, and affordable data protection. Download your free trial now. http://p.sf.net/sfu/quest-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Question about plasma
Thank You, Dave and Yi-Shin! That machine already has all the hardware and I would like to use existing THC just to prove EMC's versatility to control almost anything - I suspect that they have something more in mind and success of this task will determine, if that customer will offer me some other projects. I am not sure, if THC was provided by manufacturer together with the machine or if the client acquired it separately and now wants them both to work together. So I will take a look at thc sample config and thcud component and probably will let know, if any questions or difficulties will arise. The approved time schedule is that I will meet the machine by the end of next week. Until then I will try to find as much information as possible, how to do it. 2011/5/27 John Thornton bjt...@gmail.com: I'll try the motion.spindle.at-speed when I get a chance... Could You, please, let me know, how it works? I asked this question, because I am not sure, what does that pin affect and I was not lucky (or smart enough) to find, where motion.spindle-at-speed behavior is documented. Viesturs -- vRanger cuts backup time in half-while increasing security. With the market-leading solution for virtual backup and recovery, you get blazing-fast, flexible, and affordable data protection. Download your free trial now. http://p.sf.net/sfu/quest-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Question about plasma
On 27 May 2011 13:17, Viesturs Lācis viesturs.la...@gmail.com wrote: I'll try the motion.spindle.at-speed when I get a chance... Could You, please, let me know, how it works? I was not lucky (or smart enough) to find, where motion.spindle-at-speed behavior is documented. http://linuxcnc.org/docs/html/config_emc2hal.html it pauses motion until set to true by the VFD or HAL logic. -- atp Torque wrenches are for the obedience of fools and the guidance of wise men -- vRanger cuts backup time in half-while increasing security. With the market-leading solution for virtual backup and recovery, you get blazing-fast, flexible, and affordable data protection. Download your free trial now. http://p.sf.net/sfu/quest-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Question about plasma
2011/5/27 andy pugh bodge...@gmail.com: On 27 May 2011 13:17, Viesturs Lācis viesturs.la...@gmail.com wrote: http://linuxcnc.org/docs/html/config_emc2hal.html it pauses motion until set to true by the VFD or HAL logic. Andy, thank You! Viesturs -- vRanger cuts backup time in half-while increasing security. With the market-leading solution for virtual backup and recovery, you get blazing-fast, flexible, and affordable data protection. Download your free trial now. http://p.sf.net/sfu/quest-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] 3 threads, realtime errors
I am getting realtime errors that are somewhat baffling. I have an ATOM D510MO board and the latency test is giving me a bit less than 11,000 for Max Jitter. I cannot set a base period of anything less than about 30,000 without getting realtime errors either on startup of EMC of after running a short while. I have three threads defined: the base thread=30,000, the servo-thread=125,000 (is used for charge pump), and another real-servothread =100 (used for things that wold normally be in servo-thread). Could the third thread be the reason that I am getting the errors? Would it be better to use the base-thread for the charge pump and do away with the third thread? Which is more efficient? -Tom ps: I have run the latency test for long periods of time. pps: I have Hyperthreading off in bios, and isolcpus=1 set in grub (and can see the results in Activity Monitor) -- vRanger cuts backup time in half-while increasing security. With the market-leading solution for virtual backup and recovery, you get blazing-fast, flexible, and affordable data protection. Download your free trial now. http://p.sf.net/sfu/quest-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] IRC archive - EMC website update?
I was looking for the IRC archive and followed the link on the web site but it seems to stop on 2/11/2011. I was told by someone on the iRC that psha is maintaining it here now (http://psha.org.ru/irc/). Perhaps the EMC web page should be updated to reflect this? -Tom -- vRanger cuts backup time in half-while increasing security. With the market-leading solution for virtual backup and recovery, you get blazing-fast, flexible, and affordable data protection. Download your free trial now. http://p.sf.net/sfu/quest-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] 3 threads, realtime errors
2011/5/27 Tom Easterday tom-...@bgp.nu: I have three threads defined: the base thread=30,000, the servo-thread=125,000 (is used for charge pump), and another real-servothread =100 (used for things that wold normally be in servo-thread). I can suggest looking at recent archives - there was a case, where one of users had some difficulties with adding his own thread. If You have added that thread only for charge-pump, then I think it would be better to add it to base thread - AFAIK it does not add any computing load, please correct me, if I am wrong here. Viesturs -- vRanger cuts backup time in half-while increasing security. With the market-leading solution for virtual backup and recovery, you get blazing-fast, flexible, and affordable data protection. Download your free trial now. http://p.sf.net/sfu/quest-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] 3 threads, realtime errors
On 27 May 2011 16:55, Tom Easterday tom-...@bgp.nu wrote: I have three threads defined: the base thread=30,000, the servo-thread=125,000 (is used for charge pump), and another real-servothread =100 (used for things that wold normally be in servo-thread). Could the third thread be the reason that I am getting the errors? Unlikely, but I would be tempted to run the charge pump from a 50% pwmgen in the base thread if base thread frequency is too high for the hardware. I found that having a webcam tab causes realtime errors in my otherwise well-behaved D510MO setup. -- atp Torque wrenches are for the obedience of fools and the guidance of wise men -- vRanger cuts backup time in half-while increasing security. With the market-leading solution for virtual backup and recovery, you get blazing-fast, flexible, and affordable data protection. Download your free trial now. http://p.sf.net/sfu/quest-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Latency test [was: 3 threads, realtime errors]
Gentle persons: Andy Pugh's aside to Tom Easterday I found that having a webcam tab causes realtime errors in my otherwise well-behaved D510MO setup. should be a reminder to all of us that the latency-test results we post for different systems are not immutable. They may be helpful when selecting a motherboard and cpu but always measure the latency of the finished system as-it-is-actually-configured before using the numbers for seting up emc2. It's always useful when folks tells us their exceptions to the rule like Andy did so we can avoid them. Regards, Kent -- vRanger cuts backup time in half-while increasing security. With the market-leading solution for virtual backup and recovery, you get blazing-fast, flexible, and affordable data protection. Download your free trial now. http://p.sf.net/sfu/quest-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] G54 coordinate system error...
I've started working on using tool length offsets and a coordinate system - Most of the time it's working OK, but I'm having problems postprocessing my code to get it running consistently on my machine. A snippet of code looks like this: N1 ( BRACKET_003_3X.NGC) N2 ( EMC2 ) N4 G17 G20 G40 G49 N5 G80 G90 N6 (MSG,LOAD.1 CENTER DRILL) N7 T13 M06 N8 S3743 M3 G53 G0 Z0.0 N9 G0 G54 X.815 Y2.55 N10 G43 H13 N11 M8 N12 G81 G99 X.815 Y2.55 Z-.030 R.1 F4.97 N13 Y1.5 N14 Y.45 N15 G80 N16 M5 /N17 M9 N18 (MSG,LOAD.177 DRILL) N19 T11 M06 N20 S3539 M3 G53 G0 Z0 N21 G0 G54 Y2.55 N22 G43 H11 N23 M8 N24 G83 G99 X.815 Y2.55 Z-.5432 R.1 Q.0885 F5.31 N25 Y1.5 This code gives me an error on line N21 of 'Move on line X (which ends up being N21 would exceed maximum limit of joint 2)... (I've got a vertical mill, X/Y/Z). Any suggestions for this? I'm not sure if this is my G code or a behavior in EMC that I'm agitating. Any suggestions would be greatly appreciated! -- vRanger cuts backup time in half-while increasing security. With the market-leading solution for virtual backup and recovery, you get blazing-fast, flexible, and affordable data protection. Download your free trial now. http://p.sf.net/sfu/quest-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
