Re: [Emc-users] Uni-directional approach?
As long as your backlash is the same all over the travel then backlash compensation can work quite well in a point to point application. It helps to have a little bit of friction in the ways. If you are using ball slides then it doesn't work as well. With lower friction slides, keeping the acceleration down may help. Les cmg...@sover.net wrote: For a point to point application. A simple x/y table could benefit by a unidirectional approach feature. Is this specialization supported by G-code and EMC? OR is backlash compensation the avenue to achieve the required results? A brief seach for such a topic was not rewarded, perhaps I need to increase my search awareness factor. Regards Cal -- Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Hostmot2 homing
Does that make sense? If the terminator is really 100 ohms, that would imply that the pull up is in the order of ten ohms. (Am I correct in my assumption that the power supply is five volts?) Ken Leslie Newell wrote: Hi Ken, Yes, this was under load. Les Kenneth Lerman wrote: Did you measure that while it was connected to the receiver? If the terminator is 100 ohms and the pull up is 1K ohms, the voltage under load would only be around 400 mv. That should be fine, I think. If the pull up is 10K, then you would have around 40 mv. I don't think that would work too well. Ken -- Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Kenneth Lerman Mark Kenny Products Company, LLC 55 Main Street Newtown, CT 06470 888-ISO-SEVO 203-426-7166 -- Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Hostmot2 homing
Hi Ken, It does make sense. It looks like the encoder outputs are push-pull. Just fro the record I never said they had pullups. Someone just mentioned that some encoders do have weak pullups. Les Kenneth Lerman wrote: Does that make sense? If the terminator is really 100 ohms, that would imply that the pull up is in the order of ten ohms. (Am I correct in my assumption that the power supply is five volts?) -- Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Hostmot2 homing
Hi Peter, What is the default value for the filter? I found that a value of 1 nearly sorted the problem. A value of 2 was pretty well rock solid. Just to be sure I set it to 6 as my max frequency is well under 200kHz. I guess it is already on your to-do list but I would guess that it would be well worth adding this as a parameter with a recommendation in your docs to set it for as low a frequency as practical. Thanks, Les Well if the extra filtering of the TTL inputs helps, I would do the trick with raw-write to setup the filter time constant (the QFilterRate register at 0x3400). Currently the filter frequency is 33 MHZ which gives a 450 ns time constant: good for encoder count rates up to ~4 MHz, if the filter was set to divide by 8 (loaded with 6) you could still count up to 500 KHz but reject pulses up to 4 uSec long. You can divide the 33 MHz by up to 2049 (which _will_ be too slow, limiting your count rate to ~2KHz (filter on) or 10KHz (filter off) -- Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Hostmot2 homing
On Sat, 18 Jul 2009, Leslie Newell wrote: Date: Sat, 18 Jul 2009 22:04:47 +0100 From: Leslie Newell les.new...@fastmail.co.uk Reply-To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Hostmot2 homing Hi Peter, What is the default value for the filter? I found that a value of 1 nearly sorted the problem. A value of 2 was pretty well rock solid. Just to be sure I set it to 6 as my max frequency is well under 200kHz. Default is 0x800 which gives divide by one (33 MHz for 5I20s) This allows the maximum count rates (~4 MHz with filter bit set, ~16 MHz with filter bit clear) I guess it is already on your to-do list but I would guess that it would be well worth adding this as a parameter with a recommendation in your docs to set it for as low a frequency as practical. Yes, that recommendation (and a description of the filter timing) is in the regmap file, but not in the Hostmot2 manual as the driver does not support setting QFilterRate as yet. Thanks, Les Well if the extra filtering of the TTL inputs helps, I would do the trick with raw-write to setup the filter time constant (the QFilterRate register at 0x3400). Currently the filter frequency is 33 MHZ which gives a 450 ns time constant: good for encoder count rates up to ~4 MHz, if the filter was set to divide by 8 (loaded with 6) you could still count up to 500 KHz but reject pulses up to 4 uSec long. You can divide the 33 MHz by up to 2049 (which _will_ be too slow, limiting your count rate to ~2KHz (filter on) or 10KHz (filter off) -- Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your ()_() signature to help him gain world domination. -- Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] emc2 live download
I am a new user and I tried to down load emc2 live and it will not run or install. Also can or is it ok to download to a lap top? I read some where on the directions that it would stop the computer from going into hibernation? Is that correct? Thanks Ron -- Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] emc2 live download
Did you burn the image to a CD? The EMC2 live CD download is the image for a bootable CD that you can run EMC2 from. There is an option in the startup menu to install it to the hard drive or there is an icon on the screen to run the install. - John Guenther 'Ye Olde Pen Maker' Sterling, Virginia On Sat, 2009-07-18 at 14:57 -0700, Rondal Nannie wrote: I am a new user and I tried to down load emc2 live and it will not run or install. Also can or is it ok to download to a lap top? I read some where on the directions that it would stop the computer from going into hibernation? Is that correct? Thanks Ron -- Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] emc2 live download
On Saturday 18 July 2009, Rondal Nannie wrote: I am a new user and I tried to down load emc2 live and it will not run or install. Its an .iso image, how did you burn it to the cd? If you look at the cd with a dir command, do you see a whle bunch of files, or just the file by the same name as you downloaded? If you see the single file, you burned it using the wrong mode. Also can or is it ok to download to a lap top? I read some where on the directions that it would stop the computer from going into hibernation? Is that correct? Thanks Ron Generally correct for that version I believe. Installing ubuntu 8.04 LTS and then the latest emc will not I think do that. However, be aware that emc demands a hardware parallel port that meets certain specs, and laptops haven't had one of those in many years. You can run it in emulation mode on the laptop I believe, but not actually drive the machinery since they have no port. Almost any desktop machine with 383 megs of ram, and a gigahertz or faster cpu a good par port with a separate video card can be used. Emc isn't a game doesn't need that sort of speed. Troll through the goodwill store or flea markets for something usable. -- Cheers, Gene There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) The NRA is offering FREE Associate memberships to anyone who wants them. https://www.nrahq.org/nrabonus/accept-membership.asp Rube Walker: Hey, Yogi, what time is it? Yogi Berra: You mean now? -- Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] emc2 live download
2009/7/19 Rondal Nannie rl...@sbcglobal.net: The cd that I have was made by somebody else but it did have several files in it. I must be doing something wrong Are you trying to run it, or boot from it? Make sure that CD-ROM is before HD in the boot order of the BIOS, insert the Live-CD and restart. -- atp -- Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] emc2 live download
John I went to the site and tried to down load right from the site after I couldnt get it done with the cd. I tried both, the image and then the down load and install. The cd that I have was made by somebody else but it did have several files in it. I must be doing something wrong .Thanks Ron --- On Sat, 7/18/09, John Guenther j.guent...@verizon.net wrote: From: John Guenther j.guent...@verizon.net Subject: Re: [Emc-users] emc2 live download To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Date: Saturday, July 18, 2009, 11:32 PM Did you burn the image to a CD? The EMC2 live CD download is the image for a bootable CD that you can run EMC2 from. There is an option in the startup menu to install it to the hard drive or there is an icon on the screen to run the install. - John Guenther 'Ye Olde Pen Maker' Sterling, Virginia On Sat, 2009-07-18 at 14:57 -0700, Rondal Nannie wrote: I am a new user and I tried to down load emc2 live and it will not run or install. Also can or is it ok to download to a lap top? I read some where on the directions that it would stop the computer from going into hibernation? Is that correct? Thanks Ron -- Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] emc2 live download
Gene I went to the site and tried to down load right from the site after I couldnt get it done with the cd. I tried both, the image and then the down load and install. The cd that I have was made by somebody else but it did have several files in it. I must be doing something wrong .Thanks Ron --- On Sat, 7/18/09, Gene Heskett gene.hesk...@gmail.com wrote: From: Gene Heskett gene.hesk...@gmail.com Subject: Re: [Emc-users] emc2 live download To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Date: Saturday, July 18, 2009, 10:39 PM On Saturday 18 July 2009, Rondal Nannie wrote: I am a new user and I tried to down load emc2 live and it will not run or install. Its an .iso image, how did you burn it to the cd? If you look at the cd with a dir command, do you see a whle bunch of files, or just the file by the same name as you downloaded? If you see the single file, you burned it using the wrong mode. Also can or is it ok to download to a lap top? I read some where on the directions that it would stop the computer from going into hibernation? Is that correct? Thanks Ron Generally correct for that version I believe. Installing ubuntu 8.04 LTS and then the latest emc will not I think do that. However, be aware that emc demands a hardware parallel port that meets certain specs, and laptops haven't had one of those in many years. You can run it in emulation mode on the laptop I believe, but not actually drive the machinery since they have no port. Almost any desktop machine with 383 megs of ram, and a gigahertz or faster cpu a good par port with a separate video card can be used. Emc isn't a game doesn't need that sort of speed. Troll through the goodwill store or flea markets for something usable. -- Cheers, Gene There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) The NRA is offering FREE Associate memberships to anyone who wants them. https://www.nrahq.org/nrabonus/accept-membership.asp Rube Walker: Hey, Yogi, what time is it? Yogi Berra: You mean now? -- Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] emc2 live download
On Saturday 18 July 2009, Rondal Nannie wrote: Gene I went to the site and tried to down load right from the site after I couldnt get it done with the cd. I tried both, the image and then the down load and install. The cd that I have was made by somebody else but it did have several files in it. I must be doing something wrong .Thanks Ron Is the bios set to let it boot from the cd? -- Cheers, Gene There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) The NRA is offering FREE Associate memberships to anyone who wants them. https://www.nrahq.org/nrabonus/accept-membership.asp It is the quality rather than the quantity that matters. -- Lucius Annaeus Seneca -- Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
