Re: [Emc-users] EMC2 capabilities
Shouldn't Rutex be in the HCL? --S 2008/8/31 Anders Wallin [EMAIL PROTECTED] I'm also looking for a hardware compatibility list(HCL) for EMC2 ... if someone can point me in that direction. http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?EMC2_Supported_Hardware - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] EMC2 capabilities
this is a list of I/O hardware that you plug directly into your computer either via ISA, PCI, or Parallel port. These cards typically are not servo-amplifiers themselves but provide encoder counters, DACs, ADCs, and digital IO. The I/O hardware can then be hooked up to any servo amplifiers, encoders, etc. that are compatible (Gecko, Rutex, etc.etc.). The list of compatible servo-drives etc. would be a very long one - but you may create a new page on the wiki if you feel this is worth cataloging. Shouldn't Rutex be in the HCL? --S 2008/8/31 Anders Wallin [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] I'm also looking for a hardware compatibility list(HCL) for EMC2 ... if someone can point me in that direction. http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?EMC2_Supported_Hardware - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] new cnc
You would want to read the User Manual now. John On 30 Aug 2008 at 17:24, David Morris wrote: I'm using emc2 to operate a xylotex cnc router. I have done the set-up and tested each axis with the configuration software. What do I do next? How do I get the machine to try something? How do I establish zero points for the 3 axis? I want to watch it cut some wood. Help please David ([EMAIL PROTECTED]) - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Emc on old computer
Hello, I have an old e-machine I would like to use Emc on. It is 266 Mhtz with 250 ram. I don't know if I can run Ubuntu 8.04 or not, might be kind of close. I thought if not maybe xubuntu or puppy Linux or even damn small Linux. I don't intend to run anything on it except Emc. I have just started reading tutorials and help on Emc and will likely find the info I'm looking for there. In the mean time I appreciate some opinion on what I am wanting to do. Thanks much, Doug - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] halcmd
ellery stonemetz wrote: When I run halcmd show all I get this message RTAPI: ERROR: coul not open shared memory (errno=2) HAL: ERROR: rtapi init failed: -9 NOTE: 'rtapi' kernel module must be loaded I now have your latest live cd/emc2 should I install and try it? It looks like you're trying to use halcmd while EMC2 is not running. You need to start EMC2 first, then the command `halcmd show all` will show you every driver and connection in the HAL (Hardware Abstraction Layer). Your original question was whether you should see the encoder feedback change when you turn the shaft - the answer is yes, you should. That is, if the correct drivers have been loaded, and the encoders have been correctly connected, you should see the feedback change. When starting EMC2, make sure you choose a sample configuration for the 5i20, or the driver won't be loaded. - Steve - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Emc on old computer
Just to add a bit to what Ray and Emory said here is a link to the new Getting Started Guide that might help you if you need to download the 6.06 version on a slow connection... some scrounging around to find a slighly faster computer would help. http://www.linuxcnc.org/docs/devel/html/Getting_Started.html Here is a link on how one person adapted Puppy to EMC http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Emc_Puppy and there might be some more examples on the wiki site. John On 31 Aug 2008 at 10:22, Doug Pollard wrote: Hello, I have an old e-machine I would like to use Emc on. It is 266 Mhtz with 250 ram. I don't know if I can run Ubuntu 8.04 or not, might be kind of close. I thought if not maybe xubuntu or puppy Linux or even damn small Linux. I don't intend to run anything on it except Emc. I have just started reading tutorials and help on Emc and will likely find the info I'm looking for there. In the mean time I appreciate some opinion on what I am wanting to do. Thanks much, Doug -- --- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Problems with axises in auto and mdi
This is a new and updated (today) install. I am running steppers motors. In manual mode it works great, MDI and Auto mode it will randomly go nuts on on one or two varying axises. Nuts, sometimes going back and forth about 10 or 20 degrees on a axis with no movement on the digits on the screen. Or, moving slowly in one direction with no movements on the location display of the screen. On the MDI it seams to do it when I first start up and go into that mode, I can execute some code and it stops all the time I think. On the auto it will do it sometimes when I go into the mode and sometimes when I get done with a program. It will stop if I go back to Manual mode all the time. Any thoughts? Andy - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Problems with axises in auto and mdi
andyholcomb wrote: This is a new and updated (today) install. I am running steppers motors. In manual mode it works great, MDI and Auto mode it will randomly go nuts on on one or two varying axises. Nuts, sometimes going back and forth about 10 or 20 degrees on a axis with no movement on the digits on the screen. Or, moving slowly in one direction with no movements on the location display of the screen. On the MDI it seams to do it when I first start up and go into that mode, I can execute some code and it stops all the time I think. On the auto it will do it sometimes when I go into the mode and sometimes when I get done with a program. It will stop if I go back to Manual mode all the time. Any thoughts? If the display isn't changing, EMC thinks it isn't moving. Time for some classic divide and conquer debugging. EMC sends position commands out the HAL pins axis.n.motor-pos-cmd. Open another shell while EMC is running, and invoke halmeter. Select the motor-pos-cmd pin, and you will get a meter displaying the current command from EMC. Then do whatever you do to make it misbehave. If the meter shows no change, then EMC proper isn't commanding that motion. You start multiple halmeters - put a couple on the step generator pins as well, both command and feedback. If the stepgen feedback isn't changing, then the step generator isn't commanding that motion either. If you find something changing when it shouldn't, report back what you found. If none of those pins are changing but your axis is still moving, you probably want to look at the step pins. It doesn't make sense to discuss next steps in much detail, since they depend on what you find in the first steps. Troubleshooting is _always_ an interactive process. Ask a question, conduct a test to find the answer, and then ask a new question based on what you just discovered. Regards, John Kasunich - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Stepper as servo
Yes, this may sound a little 'weird', but has someone tried putting shaft encoders on stepper motors, to try to determine if steps are being lost? If so, I would guess that it would be a SMS (euphemism for a lot of work - Small Matter of Software) to generate 'catch-up' steps somewhere in the process. Either in EMC or in a 'intervening' hardware interface. Just a wild thought, but I am sure someone else has thought of it before. - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Emc on old computer
Stuart Stevenson wrote: Hello, I have an old e-machine I would like to use Emc on. It is 266 Mhtz with 250 ram. I don't know if I can run Ubuntu 8.04 or not, might be kind of close. I thought if not maybe xubuntu or puppy Linux or even damn small Linux. I don't intend to run anything on it except Emc. Gentlemen, I agree with Doug. It would be nice to have an small install for an embedded system. Just enough for a gui and communication and edit. Even better would be a 'config' configuration and instructions on building your own with only the elements you want to include. Mind you, I am not volunteering for this project. I would like to have the capability to build this project. It would be SO helpful in other projects. I am not there yet. thanks Stuart - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Someone either on Ubuntu mail group or EMC can't remember at the moment gave me this link to puppy Linux install with Emc looks pretty complex but may be doable for me. Anyway even If I don't use this box the one I do use won't likely be that much faster and newer. I don't want to use the box for anything but emc as I have a fast box in the house that is set up for video editing so it's pretty hot stuff or was 3 years ago. I would like to use ubuntu, maybe pull out some of the unneeded programs for a little more space. See about that!! Doug http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Emc_Puppy - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Problems with axises in auto and mdi
When I get it to mess up the motor-pos-cmd is jittering at the 4th 5th 6th etc decimal place, so is the pos cmd and the pos cmd fdback. The dir is also bouncing back and fourth but the step appears to be fine. Andy John Kasunich wrote: andyholcomb wrote: This is a new and updated (today) install. I am running steppers motors. In manual mode it works great, MDI and Auto mode it will randomly go nuts on on one or two varying axises. Nuts, sometimes going back and forth about 10 or 20 degrees on a axis with no movement on the digits on the screen. Or, moving slowly in one direction with no movements on the location display of the screen. On the MDI it seams to do it when I first start up and go into that mode, I can execute some code and it stops all the time I think. On the auto it will do it sometimes when I go into the mode and sometimes when I get done with a program. It will stop if I go back to Manual mode all the time. Any thoughts? If the display isn't changing, EMC thinks it isn't moving. Time for some classic divide and conquer debugging. EMC sends position commands out the HAL pins axis.n.motor-pos-cmd. Open another shell while EMC is running, and invoke halmeter. Select the motor-pos-cmd pin, and you will get a meter displaying the current command from EMC. Then do whatever you do to make it misbehave. If the meter shows no change, then EMC proper isn't commanding that motion. You start multiple halmeters - put a couple on the step generator pins as well, both command and feedback. If the stepgen feedback isn't changing, then the step generator isn't commanding that motion either. If you find something changing when it shouldn't, report back what you found. If none of those pins are changing but your axis is still moving, you probably want to look at the step pins. It doesn't make sense to discuss next steps in much detail, since they depend on what you find in the first steps. Troubleshooting is _always_ an interactive process. Ask a question, conduct a test to find the answer, and then ask a new question based on what you just discovered. Regards, John Kasunich - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Reslover feedback instead of Encoders?
Hello everyone, A quick question (hopefully). I have a substantial inventory of Kollmorgan Servo Motors and Servo Drives (CD series)$. All the motors have resolvers for feedback not encoders. The Servo drives are also configured for resolvers as well. I really want to use emc on a processing machine that will use 9 of these servo motors but I first need to know if I can use the inventory I have. My instinct tells me the Servo Drives should work because the loop is not being closed at the drive but rather at the host computer. The question is will any of the Mesa products or others accommodate resolver feedback. Has anyone successfully used resolvers in an application? Doug Crews Seattle, WA USA - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Emc on old computer
Doug Pollard wrote: [snip] Someone either on Ubuntu mail group or EMC can't remember at the moment gave me this link to puppy Linux install with Emc looks pretty complex but may be doable for me. Anyway even If I don't use this box the one I do use won't likely be that much faster and newer. I don't want to use the box for anything but emc as I have a fast box in the house that is set up for video editing so it's pretty hot stuff or was 3 years ago. I would like to use ubuntu, maybe pull out some of the unneeded programs for a little more space. See about that!! Doug http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Emc_Puppy Puppy has a couple of issues having to do with package management and lack of installed compilers. Ubuntu also has no compiler installed by default, but they're easy to install with the package manager. It's less necessary to compile anyway, since you can also install EMC and other updates with the package manager. To get an Ubuntu-based system, you can try the somewhat more difficult route of using the text mode installer on ubuntu server or the relatively lightweight xubuntu version, then installing the EMC packages by hand. The install process for normal ubuntu (or the EMC2 version, which is based on standard Ubuntu) needs a lot of memory if you boot to the desktop then install. I don't know if installing from the Install Ubuntu option on the CD boot menu uses the text installer - you could check and get back to us :) I believe that all the flavors of Ubuntu use the same xorg X server, so I don't know how much smaller the memory/CPU requirements will be for the installed system. It should use a bit less disk space, and the text installer will certainly let the install complete on some systems where the graphical installer would choke. - Steve - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Emc on old computer
On Sun, 2008-08-31 at 14:19 -0400, Doug Pollard wrote: Someone either on Ubuntu mail group or EMC can't remember at the moment gave me this link to puppy Linux install with Emc looks pretty complex but may be doable for me. Anyway even If I don't use this box the one I do use won't likely be that much faster and newer. I don't want to use the box for anything but emc as I have a fast box in the house that is set up for video editing so it's pretty hot stuff or was 3 years ago. I would like to use ubuntu, maybe pull out some of the unneeded programs for a little more space. See about that!! Doug http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Emc_Puppy The problem really isn't with space or the quantity of EMC2 or other software that's laying around on a PC. Sure in a traditional embedded system you want to minimize the software footprint but that doesn't really save computing time nor does it translate to increased EMC2 ability. That is done mostly for cost. You didn't say whether you were thinking of running steppers or servos or sim. JonE ran a servo system for years on a 100 MHz PC and an ISA Servo-To-Go card and was completely satisfied with the results. I ran steppers on an overclocked Gateway 166 for quite a while but I wasn't asking for many steps per second -- something less than 4k. Step rate can be really limited by the speed of these older boxes. The only current complete releases are the Ubuntu. Short of that you will have to roll your own if you want current abilities. I do roll my own but I don't recommend it for a first time. Since you've got a fast box in the house, try downloaded and burning the 6.06 disk and see if it will boot that E-Machines PC. If not, boot that fast box with it and play. That costs you nothing. HTH Rayh - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Stepper as servo
On Sun, 31 Aug 2008, Jack wrote: Date: Sun, 31 Aug 2008 13:07:57 -0500 From: Jack [EMAIL PROTECTED] Reply-To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net To: 'Enhanced Machine Controller (EMC)' emc-users@lists.sourceforge.net Subject: [Emc-users] Stepper as servo Yes, this may sound a little 'weird', but has someone tried putting shaft encoders on stepper motors, to try to determine if steps are being lost? If so, I would guess that it would be a SMS (euphemism for a lot of work - Small Matter of Software) to generate 'catch-up' steps somewhere in the process. Either in EMC or in a 'intervening' hardware interface. Just a wild thought, but I am sure someone else has thought of it before. Step motors with encoder feedback have been used for quite a while (Compumotor for example), sometimes to simply detect errors and sometimes to create a full closed loop servo system. Losing a step is normally a catastrophic event with a step based drive system, as its most likely to happen at high speeds resulting in a stall, so what you really want to do is use the encoder to prevent the possibility of lost steps. You do this the same way AC servos work, by keeping the stator magnetic field aligned with the step motor rotor (but with a phase lead or lag to generate torque) This way its not possible to lose steps, though its possible to fall behind because of lack of torque just like any servo system. Run this way the step motor is really a 50 pole 2 phase AC servo. The advantages are the it behaves like a real servo, that is it has ~0 static power dissipation, cant lose steps etc. The disadvantage is that its usually not as good as a normal AC servo (except possible for low speed high torque applications), it requires a high resolution encoder (1000 lines or more) for best performance and quite fancy drive circuitry. Our SoftDMC firmware will drive step motors in this mode, so we have some familiarity with running step motors as servos. I'm sure EMC could do this as well but it requires: A high servo thread rate, perhaps 20-50 KHz The aformentioned fancy drive circuit for the step motor Software in EMC to generate the 2 phase sine wave drive locked to the rotor position Some way to do initial encoder alignment (quite fussy) Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your ()_() signature to help him gain world domination. - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Reslover feedback instead of Encoders?
On Sun, 2008-08-31 at 11:39 -0700, Doug Crews wrote: Hello everyone, A quick question (hopefully). I have a substantial inventory of Kollmorgan Servo Motors and Servo Drives (CD series)$. All the motors have resolvers for feedback not encoders. The Servo drives are also configured for resolvers as well. I really want to use emc on a processing machine that will use 9 of these servo motors but I first need to know if I can use the inventory I have. My instinct tells me the Servo Drives should work because the loop is not being closed at the drive but rather at the host computer. The question is will any of the Mesa products or others accommodate resolver feedback. Has anyone successfully used resolvers in an application? Doug Crews Seattle, WA USA Hi Doug. Are the resolvers right on the motors and is there also a tach in the end? Your motors are probably newer than the DC ones I've got here. I opened these up the other day and removed the tach at the back. The shaft is 12mm so I'm cutting a little adaptor plate to match up where the magnet poles screwed in and putting USDigital E3 encoders inside where the tach was. That will allow me to use the existing sealed motor covers. Since the cable will plug right through the peckerhead (motor junction box), I can still wire in flex. That mod means I can't use the Kollmorgen drives because they required the tach. Rayh - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Reslover feedback instead of Encoders?
Message: 8 Date: Sun, 31 Aug 2008 11:39:34 -0700 From: Doug Crews [EMAIL PROTECTED] Subject: [Emc-users] Reslover feedback instead of Encoders? To: emc-users@lists.sourceforge.net Message-ID: [EMAIL PROTECTED] Content-Type: text/plain; charset=us-ascii Hello everyone, A quick question (hopefully). I have a substantial inventory of Kollmorgan Servo Motors and Servo Drives (CD series)$. All the motors have resolvers for feedback not encoders. The Servo drives are also configured for resolvers as well. I really want to use emc on a processing machine that will use 9 of these servo motors but I first need to know if I can use the inventory I have. My instinct tells me the Servo Drives should work because the loop is not being closed at the drive but rather at the host computer. The question is will any of the Mesa products or others accommodate resolver feedback. Has anyone successfully used resolvers in an application? Doug, I haven't used any yet but Jon Elson just delivered some resolver converter boards. They are a new product from him. They are based on an ADI chip. We tested them. They show almost no delay. pico-systems.com Stuart - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Emc on old computer
Ray Henry wrote: On Sun, 2008-08-31 at 14:19 -0400, Doug Pollard wrote: Someone either on Ubuntu mail group or EMC can't remember at the moment gave me this link to puppy Linux install with Emc looks pretty complex but may be doable for me. Anyway even If I don't use this box the one I do use won't likely be that much faster and newer. I don't want to use the box for anything but emc as I have a fast box in the house that is set up for video editing so it's pretty hot stuff or was 3 years ago. I would like to use ubuntu, maybe pull out some of the unneeded programs for a little more space. See about that!! Doug http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Emc_Puppy The problem really isn't with space or the quantity of EMC2 or other software that's laying around on a PC. Sure in a traditional embedded system you want to minimize the software footprint but that doesn't really save computing time nor does it translate to increased EMC2 ability. That is done mostly for cost. You didn't say whether you were thinking of running steppers or servos or sim. JonE ran a servo system for years on a 100 MHz PC and an ISA Servo-To-Go card and was completely satisfied with the results. I ran steppers on an overclocked Gateway 166 for quite a while but I wasn't asking for many steps per second -- something less than 4k. Step rate can be really limited by the speed of these older boxes. The only current complete releases are the Ubuntu. Short of that you will have to roll your own if you want current abilities. I do roll my own but I don't recommend it for a first time. Since you've got a fast box in the house, try downloaded and burning the 6.06 disk and see if it will boot that E-Machines PC. If not, boot that fast box with it and play. That costs you nothing. HTH Rayh - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users It will likely be a while before I am really ready to tackle this. I am presently doing video on my machine and will have to finish that up before starting with EMC. I have a small 9inch lathe and a table top mill that I built from a fairly heavy drill press. With proper bearings and beefing up it Works pretty good. I want to set up cnc on both. I am not at all interested in high speed 25 in. a minute would suit me just fine for what I want to do. For now its mostly trying to get a box up and running to play with and gain some know how. I will load emc on my new computer for that but without a machine on it. I am retired and ran nc and cnc and programed in G cods a fair amount but it's been over 10 years ago. Learning comes slow now days so I need time to get my head around it all again. Thanks much Guys, Doug - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Emc on old computer
Doug Pollard wrote: Ray Henry wrote: On Sun, 2008-08-31 at 14:19 -0400, Doug Pollard wrote: Someone either on Ubuntu mail group or EMC can't remember at the moment gave me this link to puppy Linux install with Emc looks pretty complex but may be doable for me. Anyway even If I don't use this box the one I do use won't likely be that much faster and newer. I don't want to use the box for anything but emc as I have a fast box in the house that is set up for video editing so it's pretty hot stuff or was 3 years ago. I would like to use ubuntu, maybe pull out some of the unneeded programs for a little more space. See about that!! Doug http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Emc_Puppy The problem really isn't with space or the quantity of EMC2 or other software that's laying around on a PC. Sure in a traditional embedded system you want to minimize the software footprint but that doesn't really save computing time nor does it translate to increased EMC2 ability. That is done mostly for cost. You didn't say whether you were thinking of running steppers or servos or sim. JonE ran a servo system for years on a 100 MHz PC and an ISA Servo-To-Go card and was completely satisfied with the results. I ran steppers on an overclocked Gateway 166 for quite a while but I wasn't asking for many steps per second -- something less than 4k. Step rate can be really limited by the speed of these older boxes. The only current complete releases are the Ubuntu. Short of that you will have to roll your own if you want current abilities. I do roll my own but I don't recommend it for a first time. Since you've got a fast box in the house, try downloaded and burning the 6.06 disk and see if it will boot that E-Machines PC. If not, boot that fast box with it and play. That costs you nothing. HTH Rayh - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users It will likely be a while before I am really ready to tackle this. I am presently doing video on my machine and will have to finish that up before starting with EMC. I have a small 9inch lathe and a table top mill that I built from a fairly heavy drill press. With proper bearings and beefing up it Works pretty good. I want to set up cnc on both. I am not at all interested in high speed 25 in. a minute would suit me just fine for what I want to do. For now its mostly trying to get a box up and running to play with and gain some know how. I will load emc on my new computer for that but without a machine on it. I am retired and ran nc and cnc and programed in G cods a fair amount but it's been over 10 years ago. Learning comes slow now days so I need time to get my head around it all again. Thanks much Guys, Doug - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users With running slow feed rates and likely low loads on motors it is very unlikely I would have any problem dropping steps on a motor so I am thinking just to use stepper motors. I would like to put cnc on my little lathe as well and there I would need and encoder on the spindle and as of now I have no idea what that entails. Here is a little stunt I learned that might help someone else. I installed new lead screw on my lathe and cast a new nut from the piece of screw I cut off. Been using the screw for threading and feed for a couple years and it is holding yo well. A tiny bit of wear. I took the nut out and brushed a coat of epoxy on the thread let it harden, back to o backlash. Might help someone with an acme thread lead screw. :-) Just to give a little something back, Doug
[Emc-users] 5i20 digital readout
I copied the text after running halcmd show all it can be viewed at http://pastebin.ca/1189758 I have even tried to swapping connectors on the 5i20 with no luck, most recently I wired a linear anilam scale to the input I am sure I am doing something wrong but I don't know what it is. If anyone has any suggestions please let me know thanks Ellery - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Reslover feedback instead of Encoders?
On Sun, Aug 31, 2008 at 02:16:27PM -0500, Stuart Stevenson wrote: Doug, I haven't used any yet but Jon Elson just delivered some resolver converter boards. They are a new product from him. They are based on an ADI chip. We tested them. They show almost no delay. pico-systems.com Stuart I'm using Jon's boards for the resolvers on my lathe. I am feeding their output into a Mesa board. I am happy with the boards. You need an oscilloscope to configure them correctly but it is a simple process. http://pico-systems.com/resolver.html - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Reslover feedback instead of Encoders?
Does your drive have a port marked C4? According to http://www.danahermotion.com/website/com/eng/download/document/200602271252190.ServoStar_CD_Series_Installation_Manual.pdfpage 23, that is Encoder Equivalent Output. You should be able to connect it to any card that accepts encoder input. Mark On Sun, Aug 31, 2008 at 2:39 PM, Doug Crews [EMAIL PROTECTED] wrote: Hello everyone, A quick question (hopefully). I have a substantial inventory of Kollmorgan Servo Motors and Servo Drives (CD series)$. All the motors have resolvers for feedback not encoders. The Servo drives are also configured for resolvers as well. I really want to use emc on a processing machine that will use 9 of these servo motors but I first need to know if I can use the inventory I have. My instinct tells me the Servo Drives should work because the loop is not being closed at the drive but rather at the host computer. The question is will any of the Mesa products or others accommodate resolver feedback. Has anyone successfully used resolvers in an application? Doug Crews Seattle, WA USA - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
