[Emc-users] How to re-enable updates
I am working on an emc2 2.4 system that was installed with Ubuntu 10.04, but a distribution upgrade to 10.10 was done by mistake about 6 months ago. Emc2 is working fine but updates are not since 10.10 isn't supported in the linuxcnc.org repository. I plan to reinstall. I'll do a complete backup of the file system first, and I can handle settings like host name, user names, passwords, etc. My plan is to restore the home directory from backup after reinstalling. Is there anything else that would need to be restored, assuming this is probably a pretty plain vanilla installation? My reasons for the reinstall are 1) To get updates to work again, 2) Any kernel updates will require setting grub to use the RT kernel, 3) In the future this machine may be administered by people with little Linux experience and I'd like updates to go as smoothly as possible. Thanks for any advice. Karl -- EditLive Enterprise is the world's most technically advanced content authoring tool. Experience the power of Track Changes, Inline Image Editing and ensure content is compliant with Accessibility Checking. http://p.sf.net/sfu/ephox-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] How to re-enable updates
Version control for the win. I'm a huge believer in git, but there are others that will work fine, especially for single user stuff. You can also use something like Clonezilla to make an image of the existing drive, which can be restored if disaster strikes. -Pete On 06/21/2011 11:04 AM, Igor Chudov wrote: I highly recommend to keep all configs under source code control like CVS or subversion. Just a side note. I like your plan on what to back up. I think that you will be fine. If you feel extremely cautious, just buy yourself another hard drive and keep the old hard drive. i On Tue, Jun 21, 2011 at 12:56 PM, Karl Cunninghamka...@keckec.com wrote: I am working on an emc2 2.4 system that was installed with Ubuntu 10.04, but a distribution upgrade to 10.10 was done by mistake about 6 months ago. Emc2 is working fine but updates are not since 10.10 isn't supported in the linuxcnc.org repository. I plan to reinstall. I'll do a complete backup of the file system first, and I can handle settings like host name, user names, passwords, etc. My plan is to restore the home directory from backup after reinstalling. Is there anything else that would need to be restored, assuming this is probably a pretty plain vanilla installation? My reasons for the reinstall are 1) To get updates to work again, 2) Any kernel updates will require setting grub to use the RT kernel, 3) In the future this machine may be administered by people with little Linux experience and I'd like updates to go as smoothly as possible. Thanks for any advice. Karl -- EditLive Enterprise is the world's most technically advanced content authoring tool. Experience the power of Track Changes, Inline Image Editing and ensure content is compliant with Accessibility Checking. http://p.sf.net/sfu/ephox-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] How to re-enable updates
One thought, that others will undoubtedly shoot down, For your 'temporary backup' solution, install dropbox. Put the files you want in there. Re-install your machine, then put drop box on and get your configs back. Then if you want, un-install dropbox. Or use ubuntuone. Both have 2G for free. Don't consider this 'safe storage'. I am sure it can be hacked, but it is convenient for non-'secure' data. -- EditLive Enterprise is the world's most technically advanced content authoring tool. Experience the power of Track Changes, Inline Image Editing and ensure content is compliant with Accessibility Checking. http://p.sf.net/sfu/ephox-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] How to re-enable updates
On 06/21/2011 02:35 PM, Jack Coats wrote: One thought, that others will undoubtedly shoot down, For your 'temporary backup' solution, install dropbox. Put the files you want in there. Re-install your machine, then put drop box on and get your configs back. Then if you want, un-install dropbox. Or use ubuntuone. Both have 2G for free. Don't consider this 'safe storage'. I am sure it can be hacked, but it is convenient for non-'secure' data. Dropbox is very handy. But, as Jack said, don't put anything sensitive on there. OR encrypt it first. -Pete -- EditLive Enterprise is the world's most technically advanced content authoring tool. Experience the power of Track Changes, Inline Image Editing and ensure content is compliant with Accessibility Checking. http://p.sf.net/sfu/ephox-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] How to re-enable updates
On 06/21/2011 02:48 PM, Peter Loron wrote: On 06/21/2011 02:35 PM, Jack Coats wrote: One thought, that others will undoubtedly shoot down, For your 'temporary backup' solution, install dropbox. Put the files you want in there. Re-install your machine, then put drop box on and get your configs back. Then if you want, un-install dropbox. Or use ubuntuone. Both have 2G for free. Don't consider this 'safe storage'. I am sure it can be hacked, but it is convenient for non-'secure' data. Dropbox is very handy. But, as Jack said, don't put anything sensitive on there. OR encrypt it first. What I've done before for these kinds of things is use tar and netcat to copy the file system to another machine on the local network. And for peace of mind I'll also make a copy of the home directory to a flash drive. Shouldn't need any offsite storage. Thanks to all for the suggestions. My main concern was due to my lack of experience with emc2, and not knowing if I was going to need anything other than in /home. And thanks for the idea about the version control system for the configs. Karl -- EditLive Enterprise is the world's most technically advanced content authoring tool. Experience the power of Track Changes, Inline Image Editing and ensure content is compliant with Accessibility Checking. http://p.sf.net/sfu/ephox-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] How to re-enable updates
Actually, if you can afford another disk drive, put in a new drive, install on it. Then install your old drive as a 'second' drive, and copy your config files over. This way you can keep the old drive for a while after you get things running. Out of the machine is best to ensure nothing happens to it. After a while, get a USB external drive box and put the old drive in it. Then you can reformat it, or whatever you want. Makes for good portable back up media if nothing else! ... Currently, I do this whenever I build a new machine when I can. Yes, I use the old drives as offline backups, 'transportable' drives, and even as extra storage for both Linux and Winders machines. Using crashplan I backup all my machines (windows and linux, multiple of each) to one USB external drive I keep on on e Linux machine. All boxes are onsite (on our wireless lan). It works pretty well. Just a few thoughts. -- EditLive Enterprise is the world's most technically advanced content authoring tool. Experience the power of Track Changes, Inline Image Editing and ensure content is compliant with Accessibility Checking. http://p.sf.net/sfu/ephox-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] emc 2.4.6 offsets tool and axis
I run two instances of 2.4.6 the first one uses stepper with no steppers connected and gets treated like sim. CPU is 2.8 G P4. This is my desktop machine with the CAD/CAM on it. The second machine is a 1.2 G Duron with a 5i20 running hostmot-2. One of these years I will get frustrated enough to change out the mb for and newer one hoping to fix the problem. GUI in both cases is TkEmc. Machine one (stepper) seems to understand G55 thru G59.3 and uses them in a fairly reliable manner but sometime fails to do the offsets upon starting a program. The correct tool number is displayed but not the offset even though the tool offset is used correctly. Machine two misses updating the machine offset upon a restart in the middle of a program even tho I add a Gxx just past the restart line. Most of the time the offset is used but not displayed. Sometimes I get no offset displayed and none used. Correct tool number is displayed but not the tool offset (always 0.). I rarely use the tool table offset since synergy expect 0.0 offset and does offset tool paths using the declared tool dia in the cam. I just happened to manually program something very simple because I wanted to be able to adjust the size. The little bit of debugging I've done seems to indicate that the NML message to set the offsets never arrives. I can live with this but it certainly would be nice to get some guidance on fixing the problem. TIA Dave -- EditLive Enterprise is the world's most technically advanced content authoring tool. Experience the power of Track Changes, Inline Image Editing and ensure content is compliant with Accessibility Checking. http://p.sf.net/sfu/ephox-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] SuperPID with EMC?
On 06/10/2011 04:21 PM, andy pugh wrote: On 10 June 2011 23:53, Jack Coatsj...@coats.org wrote: They seem to support MACH3, but not apparently EMC2 (or at least not documented well). It has a PWM input, so EMC2 control would be trivial. However, it is rather expensive, and duplicates on-board a number of things that EMC2 would do for free. I have closed-loop PID control on my milling machine using built-in EMC2 functions and a PWM output from EMC2 to the motor drive. You should be able to use something like http://grizzly.amazonwebstore.com/Grizzly-G3555-Router-Speed-Control-20/M/BDD1R4.htm?traffic_src=GButm_medium=CSEutm_source=GBid=uk (Mainly as a cheap source of pre-assembled parts) with EMC2 PWM and a very simple interface circuit taking the place of the potentiometer. I noted a very similar looking controller at Harbor Frieght for $19. Has anybody hacked on one of these to drive the pot from EMC? Once I finish getting my mill basically operational, a router speed controller is next on my list. For now, of course, I could just rig up some sort of tach and twiddle the pot by hand to the the desired speed, but... -Pete -- EditLive Enterprise is the world's most technically advanced content authoring tool. Experience the power of Track Changes, Inline Image Editing and ensure content is compliant with Accessibility Checking. http://p.sf.net/sfu/ephox-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] SuperPID with EMC?
On 22 June 2011 01:22, Peter Loron pet...@standingwave.org wrote: I noted a very similar looking controller at Harbor Frieght for $19. Has anybody hacked on one of these to drive the pot from EMC? No, but I am pretty sure I know how, with push-pull optos. -- atp Torque wrenches are for the obedience of fools and the guidance of wise men -- Simplify data backup and recovery for your virtual environment with vRanger. Installation's a snap, and flexible recovery options mean your data is safe, secure and there when you need it. Data protection magic? Nope - It's vRanger. Get your free trial download today. http://p.sf.net/sfu/quest-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] SuperPID with EMC?
On 6/21/2011 8:22 PM, Peter Loron wrote: On 06/10/2011 04:21 PM, andy pugh wrote: On 10 June 2011 23:53, Jack Coatsj...@coats.org wrote: They seem to support MACH3, but not apparently EMC2 (or at least not documented well). It has a PWM input, so EMC2 control would be trivial. However, it is rather expensive, and duplicates on-board a number of things that EMC2 would do for free. I have closed-loop PID control on my milling machine using built-in EMC2 functions and a PWM output from EMC2 to the motor drive. You should be able to use something like http://grizzly.amazonwebstore.com/Grizzly-G3555-Router-Speed-Control-20/M/BDD1R4.htm?traffic_src=GButm_medium=CSEutm_source=GBid=uk (Mainly as a cheap source of pre-assembled parts) with EMC2 PWM and a very simple interface circuit taking the place of the potentiometer. I noted a very similar looking controller at Harbor Frieght for $19. Has anybody hacked on one of these to drive the pot from EMC? Once I finish getting my mill basically operational, a router speed controller is next on my list. For now, of course, I could just rig up some sort of tach and twiddle the pot by hand to the the desired speed, but... -Pete Pete: I've purchased several similar controllers from different sources for use with routers and the like. Some of the controllers worked very well; some weren't worth the cardboard box they came in. Honestly, I couldn't predict from their external form, fit, and finish which would be acceptable. Certainly, their retail prices didn't correlate with their performance. I guess it depends on which offshore contract-factory makes it. I've not had one from HF. At the price it is probably worth trying it but based on my experience I'd strongly urge you to test it before bothering to hack it. Good hunting. Regards, Kent -- Simplify data backup and recovery for your virtual environment with vRanger. Installation's a snap, and flexible recovery options mean your data is safe, secure and there when you need it. Data protection magic? Nope - It's vRanger. Get your free trial download today. http://p.sf.net/sfu/quest-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] SuperPID with EMC?
I have an Hitachi M12VC http://www.google.com/products/catalog?q=HITACHI+ROUTERoe=utf-8rls=org.mozilla:en-US:officialclient=firefox-aum=1ie=UTF-8tbm=shopcid=4659105001687453144sa=Xei=_loBTsq9EIXl0QG9q5XQDgved=0CDwQ8gIwAA router I'm very pleased with. It's very quiet, light, and inexpensive and best of all has a closed loop speed control that maintains torque all through its range. I have thought about replacing the potentiometer with an interface to EMC2 and would love to hear any ideas to accomplish this. My first thought was to use an Arduino board to accept a PWM signal and control a digital pot. Any better (simpler) ideas? From: Kent A. Reed knbr...@erols.com To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Tue, June 21, 2011 8:01:11 PM Subject: Re: [Emc-users] SuperPID with EMC? On 6/21/2011 8:22 PM, Peter Loron wrote: On 06/10/2011 04:21 PM, andy pugh wrote: On 10 June 2011 23:53, Jack Coatsj...@coats.org wrote: They seem to support MACH3, but not apparently EMC2 (or at least not documented well). It has a PWM input, so EMC2 control would be trivial. However, it is rather expensive, and duplicates on-board a number of things that EMC2 would do for free. I have closed-loop PID control on my milling machine using built-in EMC2 functions and a PWM output from EMC2 to the motor drive. You should be able to use something like http://grizzly.amazonwebstore.com/Grizzly-G3555-Router-Speed-Control-20/M/BDD1R4.htm?traffic_src=GButm_medium=CSEutm_source=GBid=uk k (Mainly as a cheap source of pre-assembled parts) with EMC2 PWM and a very simple interface circuit taking the place of the potentiometer. I noted a very similar looking controller at Harbor Frieght for $19. Has anybody hacked on one of these to drive the pot from EMC? Once I finish getting my mill basically operational, a router speed controller is next on my list. For now, of course, I could just rig up some sort of tach and twiddle the pot by hand to the the desired speed, but... -Pete Pete: I've purchased several similar controllers from different sources for use with routers and the like. Some of the controllers worked very well; some weren't worth the cardboard box they came in. Honestly, I couldn't predict from their external form, fit, and finish which would be acceptable. Certainly, their retail prices didn't correlate with their performance. I guess it depends on which offshore contract-factory makes it. I've not had one from HF. At the price it is probably worth trying it but based on my experience I'd strongly urge you to test it before bothering to hack it. Good hunting. Regards, Kent -- Simplify data backup and recovery for your virtual environment with vRanger. Installation's a snap, and flexible recovery options mean your data is safe, secure and there when you need it. Data protection magic? Nope - It's vRanger. Get your free trial download today. http://p.sf.net/sfu/quest-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Simplify data backup and recovery for your virtual environment with vRanger. Installation's a snap, and flexible recovery options mean your data is safe, secure and there when you need it. Data protection magic? Nope - It's vRanger. Get your free trial download today. http://p.sf.net/sfu/quest-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] SuperPID with EMC?
I've been looking at those routers. Glad to hear they're a good piece of kit. I know nothing about how the internal speed control works on the router, but assuming you could simply feed a variable voltage or resistance in there, then what you suggest would work fine. You could do it cheaper if you roll everything yourself, but and Arduino makes it simple. -Pete On Jun 21, 2011, at 8:12 PM, Edward Bernard wrote: I have an Hitachi M12VC http://www.google.com/products/catalog?q=HITACHI+ROUTERoe=utf-8rls=org.mozilla:en-US:officialclient=firefox-aum=1ie=UTF-8tbm=shopcid=4659105001687453144sa=Xei=_loBTsq9EIXl0QG9q5XQDgved=0CDwQ8gIwAA router I'm very pleased with. It's very quiet, light, and inexpensive and best of all has a closed loop speed control that maintains torque all through its range. I have thought about replacing the potentiometer with an interface to EMC2 and would love to hear any ideas to accomplish this. My first thought was to use an Arduino board to accept a PWM signal and control a digital pot. Any better (simpler) ideas? From: Kent A. Reed knbr...@erols.com To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Tue, June 21, 2011 8:01:11 PM Subject: Re: [Emc-users] SuperPID with EMC? On 6/21/2011 8:22 PM, Peter Loron wrote: On 06/10/2011 04:21 PM, andy pugh wrote: On 10 June 2011 23:53, Jack Coatsj...@coats.org wrote: They seem to support MACH3, but not apparently EMC2 (or at least not documented well). It has a PWM input, so EMC2 control would be trivial. However, it is rather expensive, and duplicates on-board a number of things that EMC2 would do for free. I have closed-loop PID control on my milling machine using built-in EMC2 functions and a PWM output from EMC2 to the motor drive. You should be able to use something like http://grizzly.amazonwebstore.com/Grizzly-G3555-Router-Speed-Control-20/M/BDD1R4.htm?traffic_src=GButm_medium=CSEutm_source=GBid=uk k (Mainly as a cheap source of pre-assembled parts) with EMC2 PWM and a very simple interface circuit taking the place of the potentiometer. I noted a very similar looking controller at Harbor Frieght for $19. Has anybody hacked on one of these to drive the pot from EMC? Once I finish getting my mill basically operational, a router speed controller is next on my list. For now, of course, I could just rig up some sort of tach and twiddle the pot by hand to the the desired speed, but... -Pete Pete: I've purchased several similar controllers from different sources for use with routers and the like. Some of the controllers worked very well; some weren't worth the cardboard box they came in. Honestly, I couldn't predict from their external form, fit, and finish which would be acceptable. Certainly, their retail prices didn't correlate with their performance. I guess it depends on which offshore contract-factory makes it. I've not had one from HF. At the price it is probably worth trying it but based on my experience I'd strongly urge you to test it before bothering to hack it. Good hunting. Regards, Kent -- Simplify data backup and recovery for your virtual environment with vRanger. Installation's a snap, and flexible recovery options mean your data is safe, secure and there when you need it. Data protection magic? Nope - It's vRanger. Get your free trial download today. http://p.sf.net/sfu/quest-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Simplify data backup and recovery for your virtual environment with vRanger. Installation's a snap, and flexible recovery options mean your data is safe, secure and there when you need it. Data protection magic? Nope - It's vRanger. Get your free trial download today. http://p.sf.net/sfu/quest-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Simplify data backup and recovery for your virtual environment with vRanger. Installation's a snap, and flexible recovery options mean your data is safe, secure and there when you need it. Data protection magic? Nope - It's vRanger. Get your free trial download today. http://p.sf.net/sfu/quest-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] SuperPID with EMC?
One bit of caution. The speed controls I've seen built into power tools are not isolated from the line voltage. So expect to have to isolate (optical or otherwise) any control signal between its source and the speed controller in the tool. Karl Peter Loron wrote: I've been looking at those routers. Glad to hear they're a good piece of kit. I know nothing about how the internal speed control works on the router, but assuming you could simply feed a variable voltage or resistance in there, then what you suggest would work fine. You could do it cheaper if you roll everything yourself, but and Arduino makes it simple. -Pete On Jun 21, 2011, at 8:12 PM, Edward Bernard wrote: I have an Hitachi M12VC http://www.google.com/products/catalog?q=HITACHI+ROUTERoe=utf-8rls=org.mozilla:en-US:officialclient=firefox-aum=1ie=UTF-8tbm=shopcid=4659105001687453144sa=Xei=_loBTsq9EIXl0QG9q5XQDgved=0CDwQ8gIwAA router I'm very pleased with. It's very quiet, light, and inexpensive and best of all has a closed loop speed control that maintains torque all through its range. I have thought about replacing the potentiometer with an interface to EMC2 and would love to hear any ideas to accomplish this. My first thought was to use an Arduino board to accept a PWM signal and control a digital pot. Any better (simpler) ideas? From: Kent A. Reed knbr...@erols.com To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Tue, June 21, 2011 8:01:11 PM Subject: Re: [Emc-users] SuperPID with EMC? On 6/21/2011 8:22 PM, Peter Loron wrote: On 06/10/2011 04:21 PM, andy pugh wrote: On 10 June 2011 23:53, Jack Coatsj...@coats.org wrote: They seem to support MACH3, but not apparently EMC2 (or at least not documented well). It has a PWM input, so EMC2 control would be trivial. However, it is rather expensive, and duplicates on-board a number of things that EMC2 would do for free. I have closed-loop PID control on my milling machine using built-in EMC2 functions and a PWM output from EMC2 to the motor drive. You should be able to use something like http://grizzly.amazonwebstore.com/Grizzly-G3555-Router-Speed-Control-20/M/BDD1R4.htm?traffic_src=GButm_medium=CSEutm_source=GBid=uk k (Mainly as a cheap source of pre-assembled parts) with EMC2 PWM and a very simple interface circuit taking the place of the potentiometer. I noted a very similar looking controller at Harbor Frieght for $19. Has anybody hacked on one of these to drive the pot from EMC? Once I finish getting my mill basically operational, a router speed controller is next on my list. For now, of course, I could just rig up some sort of tach and twiddle the pot by hand to the the desired speed, but... -Pete Pete: I've purchased several similar controllers from different sources for use with routers and the like. Some of the controllers worked very well; some weren't worth the cardboard box they came in. Honestly, I couldn't predict from their external form, fit, and finish which would be acceptable. Certainly, their retail prices didn't correlate with their performance. I guess it depends on which offshore contract-factory makes it. I've not had one from HF. At the price it is probably worth trying it but based on my experience I'd strongly urge you to test it before bothering to hack it. Good hunting. Regards, Kent -- Simplify data backup and recovery for your virtual environment with vRanger. Installation's a snap, and flexible recovery options mean your data is safe, secure and there when you need it. Data protection magic? Nope - It's vRanger. Get your free trial download today. http://p.sf.net/sfu/quest-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Simplify data backup and recovery for your virtual environment with vRanger. Installation's a snap, and flexible recovery options mean your data is safe, secure and there when you need it. Data protection magic? Nope - It's vRanger. Get your free trial download today. http://p.sf.net/sfu/quest-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Simplify data backup and recovery for your virtual environment with vRanger. Installation's a snap, and flexible recovery options mean your data is safe, secure and there when you need it. Data protection magic? Nope - It's vRanger. Get your free trial download today. http://p.sf.net/sfu/quest-sfdev2dev
Re: [Emc-users] SuperPID with EMC?
Good thought, Karl. From: Karl Cunningham ka...@keckec.com To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Tue, June 21, 2011 10:53:20 PM Subject: Re: [Emc-users] SuperPID with EMC? One bit of caution. The speed controls I've seen built into power tools are not isolated from the line voltage. So expect to have to isolate (optical or otherwise) any control signal between its source and the speed controller in the tool. Karl Peter Loron wrote: I've been looking at those routers. Glad to hear they're a good piece of kit. I know nothing about how the internal speed control works on the router, but assuming you could simply feed a variable voltage or resistance in there, then what you suggest would work fine. You could do it cheaper if you roll everything yourself, but and Arduino makes it simple. -Pete On Jun 21, 2011, at 8:12 PM, Edward Bernard wrote: I have an Hitachi M12VC http://www.google.com/products/catalog?q=HITACHI+ROUTERoe=utf-8rls=org.mozilla:en-US:officialclient=firefox-aum=1ie=UTF-8tbm=shopcid=4659105001687453144sa=Xei=_loBTsq9EIXl0QG9q5XQDgved=0CDwQ8gIwAA A router I'm very pleased with. It's very quiet, light, and inexpensive and best of all has a closed loop speed control that maintains torque all through its range. I have thought about replacing the potentiometer with an interface to EMC2 and would love to hear any ideas to accomplish this. My first thought was to use an Arduino board to accept a PWM signal and control a digital pot. Any better (simpler) ideas? From: Kent A. Reed knbr...@erols.com To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Tue, June 21, 2011 8:01:11 PM Subject: Re: [Emc-users] SuperPID with EMC? On 6/21/2011 8:22 PM, Peter Loron wrote: On 06/10/2011 04:21 PM, andy pugh wrote: On 10 June 2011 23:53, Jack Coatsj...@coats.org wrote: They seem to support MACH3, but not apparently EMC2 (or at least not documented well). It has a PWM input, so EMC2 control would be trivial. However, it is rather expensive, and duplicates on-board a number of things that EMC2 would do for free. I have closed-loop PID control on my milling machine using built-in EMC2 functions and a PWM output from EMC2 to the motor drive. You should be able to use something like http://grizzly.amazonwebstore.com/Grizzly-G3555-Router-Speed-Control-20/M/BDD1R4.htm?traffic_src=GButm_medium=CSEutm_source=GBid=uk k k (Mainly as a cheap source of pre-assembled parts) with EMC2 PWM and a very simple interface circuit taking the place of the potentiometer. I noted a very similar looking controller at Harbor Frieght for $19. Has anybody hacked on one of these to drive the pot from EMC? Once I finish getting my mill basically operational, a router speed controller is next on my list. For now, of course, I could just rig up some sort of tach and twiddle the pot by hand to the the desired speed, but... -Pete Pete: I've purchased several similar controllers from different sources for use with routers and the like. Some of the controllers worked very well; some weren't worth the cardboard box they came in. Honestly, I couldn't predict from their external form, fit, and finish which would be acceptable. Certainly, their retail prices didn't correlate with their performance. I guess it depends on which offshore contract-factory makes it. I've not had one from HF. At the price it is probably worth trying it but based on my experience I'd strongly urge you to test it before bothering to hack it. Good hunting. Regards, Kent -- Simplify data backup and recovery for your virtual environment with vRanger. Installation's a snap, and flexible recovery options mean your data is safe, secure and there when you need it. Data protection magic? Nope - It's vRanger. Get your free trial download today. http://p.sf.net/sfu/quest-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Simplify data backup and recovery for your virtual environment with vRanger. Installation's a snap, and flexible recovery options mean your data is safe, secure and there when you need it. Data protection magic? Nope - It's vRanger. Get your free trial download today. http://p.sf.net/sfu/quest-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Simplify data backup and recovery for your virtual environment with vRanger.
Re: [Emc-users] SuperPID with EMC?
On Wednesday, June 22, 2011 12:24:45 AM Karl Cunningham did opine: One bit of caution. The speed controls I've seen built into power tools are not isolated from the line voltage. So expect to have to isolate (optical or otherwise) any control signal between its source and the speed controller in the tool. Karl Precisely why I used the PMDX-106, its control is opto-isolated. 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) You will be held hostage by a radical group. -- Simplify data backup and recovery for your virtual environment with vRanger. Installation's a snap, and flexible recovery options mean your data is safe, secure and there when you need it. Data protection magic? Nope - It's vRanger. Get your free trial download today. http://p.sf.net/sfu/quest-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
