Re: [Emc-users] converting Monarch 10EE
On Tuesday 30 April 2013 04:10:18 jeremy youngs did opine: gene did say The day of picking up a defunct treadmill, or a surplus motor from one, seem to now be in the distant past, with one that I saw on fleabay, clearly well abused, 6 months ago that still had 3 days to go and was above 200USD then my results from flea bay are different and 2 of my 3 machines run craigslist freebie motors and controllers ( until i scrape the coin for a mesa card and jons servo amp:) http://www.ebay.com/itm/2-5-HP-TREADMILL-MOTOR-complet-setup-with-contro ller-and-cables-/251265385921?pt=US_Cardio_Treadmillshash=item3a809585c 1 ymmv :) Now that I could get interested in. How hard will it be to remove that flywheel and mount flange so that there is a snowballs chance of hiding it close enough to the existing motor pocket in the back of a 7x to allow a slightly longer toothed belt work? I could find an extra inch under its position easily with a sabre saw as the so called chip pan is no longer under mine, much easier to clean under it w/o it. The existing motor is reversible via the usual DPDT relay bit which I have not wired back up since putting it under lcnc servo speed control, but what is that encoder looking bit on its butt? Brushless commutator? Or speed feedback to the controller? If no show stopper answers, I'll buy it now in the morning. 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) My web page: http://coyoteden.dyndns-free.com:85/gene is up! My views http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml The San Diego Freeway. Official Parking Lot of the 1984 Olympics! A pen in the hand of this president is far more dangerous than 200 million guns in the hands of law-abiding citizens. -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] converting Monarch 10EE
one of them had a flatted 5/8 shaft, the other it was pressed on. if you remove the flywheel you have to put a fan on it , if you will run it slow a fan is probably a good idea , i just used an old pc fan. there are several motors for around 40 bucks, as to the reverse feature i haver thoughyt of building an h bridge , but as mentioned before when i Am a little less concerned with getting back to missouri and out of ny i will splurge for jons controller and run it on rectified 120 . also one of them had an optical encoder that i had to make a disc for , it is jut a disc with one slot. the other one i believe has a tach or other feedbak but has not been hooked up and seems to work fine . the encoder motor would not run without it . and thats about all i know about that :) On Tue, Apr 30, 2013 at 4:23 AM, Gene Heskett ghesk...@wdtv.com wrote: On Tuesday 30 April 2013 04:10:18 jeremy youngs did opine: gene did say The day of picking up a defunct treadmill, or a surplus motor from one, seem to now be in the distant past, with one that I saw on fleabay, clearly well abused, 6 months ago that still had 3 days to go and was above 200USD then my results from flea bay are different and 2 of my 3 machines run craigslist freebie motors and controllers ( until i scrape the coin for a mesa card and jons servo amp:) http://www.ebay.com/itm/2-5-HP-TREADMILL-MOTOR-complet-setup-with-contro ller-and-cables-/251265385921?pt=US_Cardio_Treadmillshash=item3a809585c 1 ymmv :) Now that I could get interested in. How hard will it be to remove that flywheel and mount flange so that there is a snowballs chance of hiding it close enough to the existing motor pocket in the back of a 7x to allow a slightly longer toothed belt work? I could find an extra inch under its position easily with a sabre saw as the so called chip pan is no longer under mine, much easier to clean under it w/o it. The existing motor is reversible via the usual DPDT relay bit which I have not wired back up since putting it under lcnc servo speed control, but what is that encoder looking bit on its butt? Brushless commutator? Or speed feedback to the controller? If no show stopper answers, I'll buy it now in the morning. 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) My web page: http://coyoteden.dyndns-free.com:85/gene is up! My views http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml The San Diego Freeway. Official Parking Lot of the 1984 Olympics! A pen in the hand of this president is far more dangerous than 200 million guns in the hands of law-abiding citizens. -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- jeremy youngs -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] converting Monarch 10EE
gene here is a bit more variety http://www.ebay.com/sch/i.html?_trksid=p2050601.m570.l1313.TR10.TRC2_nkw=treadmill+motor_sacat=0_from=R40 On Tue, Apr 30, 2013 at 10:55 AM, jeremy youngs jcyoung...@gmail.comwrote: one of them had a flatted 5/8 shaft, the other it was pressed on. if you remove the flywheel you have to put a fan on it , if you will run it slow a fan is probably a good idea , i just used an old pc fan. there are several motors for around 40 bucks, as to the reverse feature i haver thoughyt of building an h bridge , but as mentioned before when i Am a little less concerned with getting back to missouri and out of ny i will splurge for jons controller and run it on rectified 120 . also one of them had an optical encoder that i had to make a disc for , it is jut a disc with one slot. the other one i believe has a tach or other feedbak but has not been hooked up and seems to work fine . the encoder motor would not run without it . and thats about all i know about that :) On Tue, Apr 30, 2013 at 4:23 AM, Gene Heskett ghesk...@wdtv.com wrote: On Tuesday 30 April 2013 04:10:18 jeremy youngs did opine: gene did say The day of picking up a defunct treadmill, or a surplus motor from one, seem to now be in the distant past, with one that I saw on fleabay, clearly well abused, 6 months ago that still had 3 days to go and was above 200USD then my results from flea bay are different and 2 of my 3 machines run craigslist freebie motors and controllers ( until i scrape the coin for a mesa card and jons servo amp:) http://www.ebay.com/itm/2-5-HP-TREADMILL-MOTOR-complet-setup-with-contro ller-and-cables-/251265385921?pt=US_Cardio_Treadmillshash=item3a809585c 1 ymmv :) Now that I could get interested in. How hard will it be to remove that flywheel and mount flange so that there is a snowballs chance of hiding it close enough to the existing motor pocket in the back of a 7x to allow a slightly longer toothed belt work? I could find an extra inch under its position easily with a sabre saw as the so called chip pan is no longer under mine, much easier to clean under it w/o it. The existing motor is reversible via the usual DPDT relay bit which I have not wired back up since putting it under lcnc servo speed control, but what is that encoder looking bit on its butt? Brushless commutator? Or speed feedback to the controller? If no show stopper answers, I'll buy it now in the morning. 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) My web page: http://coyoteden.dyndns-free.com:85/gene is up! My views http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml The San Diego Freeway. Official Parking Lot of the 1984 Olympics! A pen in the hand of this president is far more dangerous than 200 million guns in the hands of law-abiding citizens. -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- jeremy youngs -- jeremy youngs -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] cnc this
Looks like a cool antique -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] treamill motors (was converting Monarch 10EE)
Gene, You need to remember that the seemingly high hp ratings of these relatively small motors is due to the very high rpms at which the ratings are valid. These 1 1/2 to 2 hp motors develop that hp at 5000 to 6000 rpm. You will have to rethink your drive coupling system to reduce that speed down to something usable especially for threading. I am using a 2 1/2 hp treadmill motor with its original speed control on my converted jet 9 x 20. I had to use a 4.5 to 1 pulley reduction to get reasonable torque in the 200 rpm spindle range but still have about 1400 rpm available at top speed, which is good enough for me. I have plans for a shiftable double reduction setup which will be closer to 3:1 in hi and 12:1 in low. At that ratio the motor will cut anything that the toolpost will hold up to even at 150 rpm cutting a very coarse thread. I feed the speed controller through an optical isolator with PWM at 200 hz out of the parport with LCNC. Be sure to use an optical isolator. And DON'T try to compare the PWM into the isolator with the output with a dual trace scope Ask me how I know. I made my encoder wheel out of a CD which I painted black. It has 20 equally spaced notches with one twice as deep for the index. I used two optical interupters for the A and B quadrature and a third one set deeper into the index notch. I mounted all the interrupters on aluminum L brackets with supermagnets holding the brackets to the metal of the enclosure. I watched the Halscope while shifting the interupters around till I got the quadrature right and the index not coinciding with the A or B transitions. When all the signals looked right on the halscope I put a drop of superglue at the edge of the bracket...waited til it set then drilled the mounting screw holes through the bracket and into the sheet metal. Much more easily done than described. The 80 transitions per rev is plenty of resolution for anything I'll ever do and the pulse rate doesn't challenge the system. Cecil -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] converting Monarch 10EE
On Tuesday 30 April 2013 11:33:32 jeremy youngs did opine: one of them had a flatted 5/8 shaft, the other it was pressed on. if you remove the flywheel you have to put a fan on it , if you will run it slow a fan is probably a good idea , i just used an old pc fan. there are several motors for around 40 bucks, as to the reverse feature i haver thoughyt of building an h bridge , but as mentioned before when i Am a little less concerned with getting back to missouri and out of ny i will splurge for jons controller and run it on rectified 120 . also one of them had an optical encoder that i had to make a disc for , it is jut a disc with one slot. the other one i believe has a tach or other feedbak but has not been hooked up and seems to work fine . the encoder motor would not run without it . and thats about all i know about that :) On Tue, Apr 30, 2013 at 4:23 AM, Gene Heskett ghesk...@wdtv.com wrote: On Tuesday 30 April 2013 04:10:18 jeremy youngs did opine: gene did say The day of picking up a defunct treadmill, or a surplus motor from one, seem to now be in the distant past, with one that I saw on fleabay, clearly well abused, 6 months ago that still had 3 days to go and was above 200USD then my results from flea bay are different and 2 of my 3 machines run craigslist freebie motors and controllers ( until i scrape the coin for a mesa card and jons servo amp:) http://www.ebay.com/itm/2-5-HP-TREADMILL-MOTOR-complet-setup-with-co ntro ller-and-cables-/251265385921?pt=US_Cardio_Treadmillshash=item3a80 9585c 1 ymmv :) Now that I could get interested in. How hard will it be to remove that flywheel and mount flange so that there is a snowballs chance of hiding it close enough to the existing motor pocket in the back of a 7x to allow a slightly longer toothed belt work? I could find an extra inch under its position easily with a sabre saw as the so called chip pan is no longer under mine, much easier to clean under it w/o it. The existing motor is reversible via the usual DPDT relay bit which I have not wired back up since putting it under lcnc servo speed control, but what is that encoder looking bit on its butt? Brushless commutator? Or speed feedback to the controller? If no show stopper answers, I'll buy it now in the morning. 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) My web page: http://coyoteden.dyndns-free.com:85/gene is up! My views http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml The San Diego Freeway. Official Parking Lot of the 1984 Olympics! A pen in the hand of this president is far more dangerous than 200 million guns in the hands of law-abiding citizens. -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users I saw several of the $40 ones that didn't have the slotted wheel, but is seems most are 2.5HP and 18+ amps, way too much, so I might bid on one of the 1 to 1.25HP versions, one looked as if it was ball bearings rather than sleeves, better IMO. And a $20 bill, but what controller? Fans I have, but they only cool the outside, that built in one sucks thru, which considering the damages one can do to the PM's with what could be called reasonable heating, I think I'd arrange a small cover of some kind around the brush end of it and have a muffin sucking or blowing thru the motor. Again, that depends on how much room has been cut away for it under the bed. Which isn't much. More than likely a new pivot mount will need to be made behind the bed, and additional metal removal for the passage of the drive belt at the more rearward location. From looking at the existing JT250 controller, I get the impression that with more access to cooling than it gets where it is, 5-7 amps might be doable. Probably more dependent on those ceramic resistors than on the solid state devices if they aren't sweepings from the Fairchild floor that is. I am not allergic to moving all that to a bigger box out back. And I just found a 1 HP version that claims its all there, controller and all, so I made the first bid. Since its so low powered compared to most, that might even be the Buy It Now price, but he didn't show one. :) Now, if paypal isn't screwing the moose again, I'll have something to play with
Re: [Emc-users] converting Monarch 10EE
On Tuesday 30 April 2013 12:03:09 jeremy youngs did opine: gene here is a bit more variety http://www.ebay.com/sch/i.html?_trksid=p2050601.m570.l1313.TR10.TRC2_nk w=treadmill+motor_sacat=0_from=R40 Thanks Jeremy, I just now bid on a 1 horse full kit. Play toys maybe, but a learning tool too. Thanks. On Tue, Apr 30, 2013 at 10:55 AM, jeremy youngs jcyoung...@gmail.comwrote: one of them had a flatted 5/8 shaft, the other it was pressed on. if you remove the flywheel you have to put a fan on it , if you will run it slow a fan is probably a good idea , i just used an old pc fan. there are several motors for around 40 bucks, as to the reverse feature i haver thoughyt of building an h bridge , but as mentioned before when i Am a little less concerned with getting back to missouri and out of ny i will splurge for jons controller and run it on rectified 120 . also one of them had an optical encoder that i had to make a disc for , it is jut a disc with one slot. the other one i believe has a tach or other feedbak but has not been hooked up and seems to work fine . the encoder motor would not run without it . and thats about all i know about that :) On Tue, Apr 30, 2013 at 4:23 AM, Gene Heskett ghesk...@wdtv.com wrote: On Tuesday 30 April 2013 04:10:18 jeremy youngs did opine: gene did say The day of picking up a defunct treadmill, or a surplus motor from one, seem to now be in the distant past, with one that I saw on fleabay, clearly well abused, 6 months ago that still had 3 days to go and was above 200USD then my results from flea bay are different and 2 of my 3 machines run craigslist freebie motors and controllers ( until i scrape the coin for a mesa card and jons servo amp:) http://www.ebay.com/itm/2-5-HP-TREADMILL-MOTOR-complet-setup-with-con tro ller-and-cables-/251265385921?pt=US_Cardio_Treadmillshash=item3a80 9585c 1 ymmv :) Now that I could get interested in. How hard will it be to remove that flywheel and mount flange so that there is a snowballs chance of hiding it close enough to the existing motor pocket in the back of a 7x to allow a slightly longer toothed belt work? I could find an extra inch under its position easily with a sabre saw as the so called chip pan is no longer under mine, much easier to clean under it w/o it. The existing motor is reversible via the usual DPDT relay bit which I have not wired back up since putting it under lcnc servo speed control, but what is that encoder looking bit on its butt? Brushless commutator? Or speed feedback to the controller? If no show stopper answers, I'll buy it now in the morning. 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) My web page: http://coyoteden.dyndns-free.com:85/gene is up! My views http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml The San Diego Freeway. Official Parking Lot of the 1984 Olympics! A pen in the hand of this president is far more dangerous than 200 million guns in the hands of law-abiding citizens. - - Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- jeremy youngs 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) My web page: http://coyoteden.dyndns-free.com:85/gene is up! My views http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml life, n.: That brief interlude between nothingness and eternity. A pen in the hand of this president is far more dangerous than 200 million guns in the hands of law-abiding citizens. -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] treamill motors (was converting Monarch 10EE)
On Tuesday 30 April 2013 12:06:13 Cecil Thomas did opine: Gene, You need to remember that the seemingly high hp ratings of these relatively small motors is due to the very high rpms at which the ratings are valid. These 1 1/2 to 2 hp motors develop that hp at 5000 to 6000 rpm. You will have to rethink your drive coupling system to reduce that speed down to something usable especially for threading. I am aware of that, the toothed belt pulleys stock on the 7x means its turning about 8000 revs to get the 2500 rated in high back gear. I very rarely use it as there isn't enough torque to even cut alu 1/2 in diameter. I am using a 2 1/2 hp treadmill motor with its original speed control on my converted jet 9 x 20. I had to use a 4.5 to 1 pulley reduction to get reasonable torque in the 200 rpm spindle range but still have about 1400 rpm available at top speed, which is good enough for me. That would also suit me just fine, low range is about 1200revs right now, and this motors is in trouble at work diameters above one inch in steel. I have plans for a shiftable double reduction setup which will be closer to 3:1 in hi and 12:1 in low. At that ratio the motor will cut anything that the toolpost will hold up to even at 150 rpm cutting a very coarse thread. That is part of my problems, the tool tip is often hanging out in front of the way pads, and it has been known to tip and dig in, bringing everything to a halt in 3 degrees of rotation. I feed the speed controller through an optical isolator with PWM at 200 hz out of the parport with LCNC. Be sure to use an optical isolator. And DON'T try to compare the PWM into the isolator with the output with a dual trace scope Ask me how I know. Chuckle, I know too, blew a C41 and a JT250 all to hell. And it does interesting things to scope probe ground leads too. And is the main reason I bought me one of those pocket scopes. But ISTR I settled on a PWM at about 1000/sec. Basically I went up till it started hunting because of poor resolution, then backed off to well below the hunt point. Subject of course to changes with gedit to the .hal file. :) But you say you are strobing the pot arm with an opto? That should give faster response I would think, one of the major problems with the C41 approach, that thing is sllloww as shipped. I made my encoder wheel out of a CD which I painted black. It has 20 equally spaced notches with one twice as deep for the index. I used two optical interupters for the A and B quadrature and a third one set deeper into the index notch. I mounted all the interrupters on aluminum L brackets with supermagnets holding the brackets to the metal of the enclosure. I watched the Halscope while shifting the interupters around till I got the quadrature right and the index not coinciding with the A or B transitions. When all the signals looked right on the halscope I put a drop of superglue at the edge of the bracket...waited til it set then drilled the mounting screw holes through the bracket and into the sheet metal. Much more easily done than described. Yup, but my disc is brass, 50 slots + long index. All 3 opto's mounted on a home made pcb, so the center one is the index. The 80 transitions per rev is plenty of resolution for anything I'll ever do and the pulse rate doesn't challenge the system. Not at 20 slots. I did some math and came to the conclusion that LCNC was capable of tracking its 50 slots at nearly 6k revs. Absolutely NP at 1200. :) Cecil -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users 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) My web page: http://coyoteden.dyndns-free.com:85/gene is up! My views http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml You can't take damsel here now. A pen in the hand of this president is far more dangerous than 200 million guns in the hands of law-abiding citizens. -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1
Re: [Emc-users] cnc this
yes cnc that :) On Tue, Apr 30, 2013 at 11:51 AM, kqt4a...@gmail.com wrote: Looks like a cool antique Brain fart, http://neworleans.craigslist.org/tls/3768221480.html -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- jeremy youngs -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] warning on the Beaglebone LinuxCNC starterkit :-/
I'm not big into adapters either for the same reason.. http://www.amazon.com/HDMI-Male-Cable-1-3V-33AWG/dp/B0040ZTH2I/ref=sr_1_8?rps=1ie=UTF8qid=1367338738sr=8-8keywords=micro+hdmi+to+hdmi+adapter $5.83 and free shipping if you have a Prime account. I went Prime after buying some outrageously large items from Amazon ( a 45 gallon sewage tank on wheels for my travel trailer) and that avoided the $150+ shipping charge..That's what they get when they start to sell big stuff on Amazon and offer free shipping. Did you know that you can buy a boat on Amazon - with free Prime shipping?? I enjoy screwing with their business model. I won't be shocked if they drop me. ;-) Oh, wait, I've got some of those in my familyguess I'll go on a scavenger hunt. I'm afraid it is a burden I must bear also... I have more than a couple of the mini HDMI to HDMI cables around here. They are often included with those little pocket video recorders. I'll postpone my hunt until the boards show up... :-) Dave On 4/29/2013 2:26 PM, Kent A. Reed wrote: On 4/29/2013 9:28 AM, Dave wrote: Micro HDMI - no sweat ... Micro HDMI to HDMI for $5.00 on Amazon.. The brick and mortar stores around me also attempt robbery when it comes to cables :-) http://www.amazon.com/s/ref=nb_sb_ss_sc_3_9/182-5664315-3225654?url=search-alias%3Dapsfield-keywords=micro%20hdmi%20to%20hdmi%20adaptersprefix=microhdmi%2Caps%2C310 No need to run headless! Dave Well, add in the hidden small-order shipping charges and the price approaches my earlier US$10 guestimate. From an industrial engineering standpoint, I prefer a microHDMI-to-HDMI cable because there's less of a lever sticking out of the microHDMI socket. These things become attractive nuisances---just right for ripping that delicate socket off the board (don't bother asking how I know such things can happen on a test bench!). As for cable prices, it seems obvious to me that the HDMI-cable vendors have studied the Monster Cable playbook for selling outrageously overpriced pieces of wire. Sprinkle fairy dust over your product laced with technical verbiage like high definition, phase shift, plug-n-play, and all the rest, and then sell to yuppie scum who already own outrageously overpriced handheld devices. Oh, wait, I've got some of those in my familyguess I'll go on a scavenger hunt. And I like running headless. So there :-) Regards, Kent -- Try New Relic Now We'll Send You this Cool Shirt New Relic is the only SaaS-based application performance monitoring service that delivers powerful full stack analytics. Optimize and monitor your browser, app, servers with just a few lines of code. Try New Relic and get this awesome Nerd Life shirt! http://p.sf.net/sfu/newrelic_d2d_apr ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] treamill motors (was converting Monarch 10EE)
gene this is what jon offers and i am salivating over :) http://pico-systems.com/osc2.5/catalog/product_info.php?products_id=26 i figure if using rectified line voltage it would give about 3 hp out of my 2.5, with fan to cool it and would only need an isolation transformer for safety, once i am back in m o this and a mesa card will be my next upgrade On Tue, Apr 30, 2013 at 12:25 PM, Gene Heskett ghesk...@wdtv.com wrote: On Tuesday 30 April 2013 12:06:13 Cecil Thomas did opine: Gene, You need to remember that the seemingly high hp ratings of these relatively small motors is due to the very high rpms at which the ratings are valid. These 1 1/2 to 2 hp motors develop that hp at 5000 to 6000 rpm. You will have to rethink your drive coupling system to reduce that speed down to something usable especially for threading. I am aware of that, the toothed belt pulleys stock on the 7x means its turning about 8000 revs to get the 2500 rated in high back gear. I very rarely use it as there isn't enough torque to even cut alu 1/2 in diameter. I am using a 2 1/2 hp treadmill motor with its original speed control on my converted jet 9 x 20. I had to use a 4.5 to 1 pulley reduction to get reasonable torque in the 200 rpm spindle range but still have about 1400 rpm available at top speed, which is good enough for me. That would also suit me just fine, low range is about 1200revs right now, and this motors is in trouble at work diameters above one inch in steel. I have plans for a shiftable double reduction setup which will be closer to 3:1 in hi and 12:1 in low. At that ratio the motor will cut anything that the toolpost will hold up to even at 150 rpm cutting a very coarse thread. That is part of my problems, the tool tip is often hanging out in front of the way pads, and it has been known to tip and dig in, bringing everything to a halt in 3 degrees of rotation. I feed the speed controller through an optical isolator with PWM at 200 hz out of the parport with LCNC. Be sure to use an optical isolator. And DON'T try to compare the PWM into the isolator with the output with a dual trace scope Ask me how I know. Chuckle, I know too, blew a C41 and a JT250 all to hell. And it does interesting things to scope probe ground leads too. And is the main reason I bought me one of those pocket scopes. But ISTR I settled on a PWM at about 1000/sec. Basically I went up till it started hunting because of poor resolution, then backed off to well below the hunt point. Subject of course to changes with gedit to the .hal file. :) But you say you are strobing the pot arm with an opto? That should give faster response I would think, one of the major problems with the C41 approach, that thing is sllloww as shipped. I made my encoder wheel out of a CD which I painted black. It has 20 equally spaced notches with one twice as deep for the index. I used two optical interupters for the A and B quadrature and a third one set deeper into the index notch. I mounted all the interrupters on aluminum L brackets with supermagnets holding the brackets to the metal of the enclosure. I watched the Halscope while shifting the interupters around till I got the quadrature right and the index not coinciding with the A or B transitions. When all the signals looked right on the halscope I put a drop of superglue at the edge of the bracket...waited til it set then drilled the mounting screw holes through the bracket and into the sheet metal. Much more easily done than described. Yup, but my disc is brass, 50 slots + long index. All 3 opto's mounted on a home made pcb, so the center one is the index. The 80 transitions per rev is plenty of resolution for anything I'll ever do and the pulse rate doesn't challenge the system. Not at 20 slots. I did some math and came to the conclusion that LCNC was capable of tracking its 50 slots at nearly 6k revs. Absolutely NP at 1200. :) Cecil -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users 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) My web page: http://coyoteden.dyndns-free.com:85/gene is up! My views http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml You can't take damsel here now. A pen in the hand of this president is far
Re: [Emc-users] treamill motors (was converting Monarch 10EE)
On 30 April 2013 16:56, Cecil Thomas wctho...@chartertn.net wrote: These 1 1/2 to 2 hp motors develop that hp at 5000 to 6000 rpm. You will have to rethink your drive coupling system to reduce that speed down to something usable especially for threading. Which is why I fancy experimenting with this: https://plus.google.com/photos/108164504656404380542/albums/5747722155741347649/5832689638364145858?banner=pwa -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] cnc this
I have a friend who bought one of those as they are collectors items for those who wish to collect old machines.. He paid well over $500 for a box full of parts along with some broken gears.. and no tooling at all. I tried to stay positive when he told me that. Dave On 4/30/2013 11:51 AM, kqt4a...@gmail.com wrote: Looks like a cool antique Brain fart, http://neworleans.craigslist.org/tls/3768221480.html -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] treamill motors (was converting Monarch 10EE)
thats a fisher paykel washing machine motor no? let us know how that works On Tue, Apr 30, 2013 at 12:48 PM, andy pugh bodge...@gmail.com wrote: On 30 April 2013 16:56, Cecil Thomas wctho...@chartertn.net wrote: These 1 1/2 to 2 hp motors develop that hp at 5000 to 6000 rpm. You will have to rethink your drive coupling system to reduce that speed down to something usable especially for threading. Which is why I fancy experimenting with this: https://plus.google.com/photos/108164504656404380542/albums/5747722155741347649/5832689638364145858?banner=pwa -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- jeremy youngs -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] cnc this
solider than the chinese junk though :) On Tue, Apr 30, 2013 at 12:51 PM, Dave e...@dc9.tzo.com wrote: I have a friend who bought one of those as they are collectors items for those who wish to collect old machines.. He paid well over $500 for a box full of parts along with some broken gears.. and no tooling at all. I tried to stay positive when he told me that. Dave On 4/30/2013 11:51 AM, kqt4a...@gmail.com wrote: Looks like a cool antique Brain fart, http://neworleans.craigslist.org/tls/3768221480.html -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- jeremy youngs -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] treamill motors (was converting Monarch 10EE)
On Tuesday 30 April 2013 12:52:04 jeremy youngs did opine: gene this is what jon offers and i am salivating over :) http://pico-systems.com/osc2.5/catalog/product_info.php?products_id=26 I can see why, but two things: The minimum PWM freq of 25khz, and the 12 volt enable. I don't have any 12 volts in my boxes that isn't busy running fans. And LCNC can't make a PWM at 25KHZ. Best it could do, on an atom board, would be a 12.5 khz square wave. So I'd have to put some other card into there to generate that high a repetition rate pulse. The 4 channel universal at $250, while no doubt nice, is too much for my toy budget. i figure if using rectified line voltage it would give about 3 hp out of my 2.5, with fan to cool it and would only need an isolation transformer for safety, once i am back in m o this and a mesa card will be my next upgrade The controller card that amazes me is the one in the HF micromill. Very stiff speed control, and once I had replaced the junk hexfet it came with due to blowing it, (with one snarfed from a defunct PC PSU whose specs looked suitable) has been absolutely bulletproof. That motor would never draw that much current, but with the hexfet replaced with a 20 amp rated one, I can't see but what I couldn't drive a 10 amp motor with it. That thing is tiny compared to most and generates very little heat on its own. 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) My web page: http://coyoteden.dyndns-free.com:85/gene is up! My views http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml A diplomat is a man who can convince his wife she'd look stout in a fur coat. A pen in the hand of this president is far more dangerous than 200 million guns in the hands of law-abiding citizens. -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Beaglebone LinuxCNC starterkit: ready-to-run SD card image
On 29 April 2013 19:16, Matt Shaver m...@mattshaver.com wrote: I feel the need to defend the Pi, Cubie, Olimex, et al boards, since it appears that no one else will :) Something else that is already out there (and a few of us were given samples of) is: http://www.roboard.com/ncbox-189.html Which is x86 but also has a number of on-board PWM channels. In some ways I think they missed a trick with the NCbox, and might have been better going for an all-in-one based on http://www.roboard.com/RB-110.htm -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] treamill motors (was converting Monarch 10EE)
On Tuesday 30 April 2013 13:15:33 andy pugh did opine: On 30 April 2013 16:56, Cecil Thomas wctho...@chartertn.net wrote: These 1 1/2 to 2 hp motors develop that hp at 5000 to 6000 rpm. You will have to rethink your drive coupling system to reduce that speed down to something usable especially for threading. Which is why I fancy experimenting with this: https://plus.google.com/photos/108164504656404380542/albums/574772215574 1347649/5832689638364145858?banner=pwa Kewl Andy. What car was that headed for? 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) My web page: http://coyoteden.dyndns-free.com:85/gene is up! My views http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml Take me drunk, I'm home again! A pen in the hand of this president is far more dangerous than 200 million guns in the hands of law-abiding citizens. -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] cnc this
we had 2 of those 9 southbends in my lab for quite some time until I finally got rid of them. Pretty nice lathes, they look more obsolete than they actually are. Although parting off something was a frustration. I tried to buy one, but it didn't work out. On Tue, Apr 30, 2013 at 12:51 PM, Dave e...@dc9.tzo.com wrote: I have a friend who bought one of those as they are collectors items for those who wish to collect old machines.. He paid well over $500 for a box full of parts along with some broken gears.. and no tooling at all. I tried to stay positive when he told me that. Dave On 4/30/2013 11:51 AM, kqt4a...@gmail.com wrote: Looks like a cool antique Brain fart, http://neworleans.craigslist.org/tls/3768221480.html -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] converting Monarch 10EE
You will have $3-400 into a 10 hp phase converter in no time. (I have put a few together). If you need three phase for other things.. go the phase converter route and see how that works. If you are going to run the lathe a lot, I would look for a relatively new Industrial DC drive that is compatible with your motor. Not the little guys, but the industrial variety.. They are normally rated in amps of armature current. They still make them. Siemens has some really nice DC drives. I setup a number of them for a plant that uses them to draw copper wire. They were 25-75hp. I bet you can run most of them off single phase. It should not be difficult to fool the drive into thinking that it has all three phases - use a power capacitor to connect non-connected phase etc. Just derate the drive. If you need a real 10 hp, look for a drive that can handle a 15 hp DC motor. The better drives have overtemp alarms and auto shutdown so burning one up should be difficult. If you keep looking your should be able to find something for less than $750. There are a lot of DC drives on Ebay. Dave On 4/29/2013 3:18 PM, Cecil Thomas wrote: Thanks for all the inputs. I did quite a bit of research concerning the effectiveness vs the amount of work vs the expense of getting the machine on line and making chips. 1. Tossing the entire drive train and replacing with a 10 hp 3ph motor and vfd to run from 220 single phase.. can't be done... no 10 hp single phase vfd available at any price. 2. same as above but use 7.5 hp vfd with back gear same problem as above plus the backgear is PART OF the DC motor and requires considerable machining and adapting to take the end bell from the old motor and incorporate it into the new drive train. 3. Note that 1 and 2 are what Monarch does now for their new and rebuilt 10ee's they are NOT for single phase 220 use. 4. Drive the existing system from a single phase in 5 hp vfd.. I could not find a 5 hp single phase in vfd and even in the lower hp ranges I was looking at $400 and up for which I would be buying all kinds of bells and whistles which would be the proverbial mammary glands on a male swine since the 3 ph motor must run at 60 hz for the rest of the system to work correctly. Also I would be required to bypass any and all means of control from the lathe itself so as not to disconnect the vfd load downstream. 5. Replace the 3 ph motor with a 5 hp single phase motor.. Probably the neatest solution but the motor and generator are a single unit so the single phase motor would have to actually spin both the motor and generator IF... there was room enough to mount the extra motor and there's not. I even considered having the 3ph motor rewound as single phase but a couple of local motor shops said they were not even interested. 6. Toss the MG and install a DC control for the motor. Most integral hp DC controllers are rated 180 volts wide open he 10ee generator produces from 0 to 300 volts to the motor armature. It would be impossible to recreate that armature voltage from an off the shelf controller and problematic to get there with a home built one. The speeds above 1500 rpm are achieved by reducing field voltage (120 V DC on the field up to 1500 rpm) so that would not be a problem. 300 VDC from 220 VAC is a challenge. 7. Make the existing 3ph motor single phase by installing a static phase converter and giving up about 1/3 of the hp.. cheapest solution. 8. Buy a pretty prebuilt Rotary Phase Converter panel for $160 and add a locally purchased used 7.5 hp idler for $0 and with a couple of hours of running conduit and hanging the panel I'm in business. Cecil -- Try New Relic Now We'll Send You this Cool Shirt New Relic is the only SaaS-based application performance monitoring service that delivers powerful full stack analytics. Optimize and monitor your browser, app, servers with just a few lines of code. Try New Relic and get this awesome Nerd Life shirt! http://p.sf.net/sfu/newrelic_d2d_apr ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] converting Monarch 10EE
On Tue, Apr 30, 2013, at 01:37 PM, Dave wrote: You will have $3-400 into a 10 hp phase converter in no time. (I have put a few together). If you need three phase for other things.. go the phase converter route and see how that works. If you are going to run the lathe a lot, I would look for a relatively new Industrial DC drive that is compatible with your motor. Not the little guys, but the industrial variety.. They are normally rated in amps of armature current. They still make them. Siemens has some really nice DC drives. I setup a number of them for a plant that uses them to draw copper wire. They were 25-75hp. I bet you can run most of them off single phase. It should not be difficult to fool the drive into thinking that it has all three phases - use a power capacitor to connect non-connected phase etc. Actually it is much harder to run a DC drive on single phase. Most industrial DC drives that I'm familiar with use phase controlled SCRs to run the motor. They simply will not run on single phase, no way, no how. And they won't run on fake three-phase coming from a static phase converter (capacitors only). They might run on three phase from a rotary converter, but I wouldn't hold my breath. Just derate the drive. If you need a real 10 hp, look for a drive that can handle a 15 hp DC motor. The better drives have overtemp alarms and auto shutdown so burning one up should be difficult. If you keep looking your should be able to find something for less than $750. There are a lot of DC drives on Ebay. Dave -- John Kasunich jmkasun...@fastmail.fm -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] converting Monarch 10EE
SCR dc drives? Is this the 70's? LOL. Im kidding. But only partially:) SMD On Tue, Apr 30, 2013 at 2:08 PM, John Kasunich jmkasun...@fastmail.fmwrote: On Tue, Apr 30, 2013, at 01:37 PM, Dave wrote: You will have $3-400 into a 10 hp phase converter in no time. (I have put a few together). If you need three phase for other things.. go the phase converter route and see how that works. If you are going to run the lathe a lot, I would look for a relatively new Industrial DC drive that is compatible with your motor. Not the little guys, but the industrial variety.. They are normally rated in amps of armature current. They still make them. Siemens has some really nice DC drives. I setup a number of them for a plant that uses them to draw copper wire. They were 25-75hp. I bet you can run most of them off single phase. It should not be difficult to fool the drive into thinking that it has all three phases - use a power capacitor to connect non-connected phase etc. Actually it is much harder to run a DC drive on single phase. Most industrial DC drives that I'm familiar with use phase controlled SCRs to run the motor. They simply will not run on single phase, no way, no how. And they won't run on fake three-phase coming from a static phase converter (capacitors only). They might run on three phase from a rotary converter, but I wouldn't hold my breath. Just derate the drive. If you need a real 10 hp, look for a drive that can handle a 15 hp DC motor. The better drives have overtemp alarms and auto shutdown so burning one up should be difficult. If you keep looking your should be able to find something for less than $750. There are a lot of DC drives on Ebay. Dave -- John Kasunich jmkasun...@fastmail.fm -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] converting Monarch 10EE
On Tue, Apr 30, 2013, at 02:14 PM, Stephen Dubovsky wrote: SCR dc drives? Is this the 70's? LOL. Im kidding. But only partially:) SMD For anything more than a few HP, SCRs still rule the DC drive world. I guess the toy stuff, under 1HP, is all PWM based these days. Small but not toys, say 1 to 5 HP, is probably a mix. But I bet there aren't many PWM DC drives above 5HP. My perspective is skewed somewhat, since the company I work for makes industrial DC drives, from about 20HP up. We don't mess with the tiny stuff. We recently shipped a 3000HP DC drive for use in a steel mill. -- John Kasunich jmkasun...@fastmail.fm -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] converting Monarch 10EE
John That is amazing to me mani mean I have seen some monster electric motors before but 3k HP is nutz .. I know the motors they used on the draw bridges in South Florida where I used to live were big DC I believe and they lifted some amazing loads via counterbalance and gearing.Lots of industrial application for motors like this. I also find it interesting that there is so much resistance to electric vehicles in the world when so many of the largest and most powerful vehicles are moved with electric power. It is an awesome force and must be interesting to work in that field. Peace Pete On Tuesday, April 30, 2013, John Kasunich jmkasun...@fastmail.fm wrote: On Tue, Apr 30, 2013, at 02:14 PM, Stephen Dubovsky wrote: SCR dc drives? Is this the 70's? LOL. Im kidding. But only partially:) SMD For anything more than a few HP, SCRs still rule the DC drive world. I guess the toy stuff, under 1HP, is all PWM based these days. Small but not toys, say 1 to 5 HP, is probably a mix. But I bet there aren't many PWM DC drives above 5HP. My perspective is skewed somewhat, since the company I work for makes industrial DC drives, from about 20HP up. We don't mess with the tiny stuff. We recently shipped a 3000HP DC drive for use in a steel mill. -- John Kasunich jmkasun...@fastmail.fm -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] converting Monarch 10EE
On Tue, Apr 30, 2013 at 3:20 PM, Pete Matos petefro...@gmail.com wrote: John That is amazing to me mani mean I have seen some monster electric motors before but 3k HP is nutz .. There's an industrial shredder in New Jersey rated at 10,000 hp. They have to turn it on and off at night on weekends because it could trip entire Newark metro area otherwise. Main maintenance problem was quoted as 'keeping it from shredding itself'. -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] converting Monarch 10EE
On 4/30/2013 2:08 PM, John Kasunich wrote: On Tue, Apr 30, 2013, at 01:37 PM, Dave wrote: You will have $3-400 into a 10 hp phase converter in no time. (I have put a few together). If you need three phase for other things.. go the phase converter route and see how that works. If you are going to run the lathe a lot, I would look for a relatively new Industrial DC drive that is compatible with your motor. Not the little guys, but the industrial variety.. They are normally rated in amps of armature current. They still make them. Siemens has some really nice DC drives. I setup a number of them for a plant that uses them to draw copper wire. They were 25-75hp. I bet you can run most of them off single phase. It should not be difficult to fool the drive into thinking that it has all three phases - use a power capacitor to connect non-connected phase etc. Actually it is much harder to run a DC drive on single phase. Most industrial DC drives that I'm familiar with use phase controlled SCRs to run the motor. They simply will not run on single phase, no way, no how. And they won't run on fake three-phase coming from a static phase converter (capacitors only). They might run on three phase from a rotary converter, but I wouldn't hold my breath. Just derate the drive. If you need a real 10 hp, look for a drive that can handle a 15 hp DC motor. The better drives have overtemp alarms and auto shutdown so burning one up should be difficult. If you keep looking your should be able to find something for less than $750. There are a lot of DC drives on Ebay. Dave Upon further investigation... you are correct. There really is no DC bus in those drives..unlike an inverter drive.. so nix that idea.. Dave -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] converting Monarch 10EE
On 4/30/2013 3:20 PM, Pete Matos wrote: I also find it interesting that there is so much resistance to electric vehicles in the world when so many of the largest and most powerful vehicles are moved with electric power. In a word, batteries. Back in the 1970s the weak link in the national electric vehicle RD program of the time was the battery. It remains so today. Every few years one research group or another issues a breathless press release about its laboratory breakthrough which will revolutionize battery technology (searching the Internet on electric battery breakthrough is instructive). There have been advances certainly but they've been more evolutionary than revolutionary. It's not my area of competence but my impression is that current batteries suffer various combinations of too big, too heavy, too little storage capacity, too limited in discharge current, too difficult to charge, too short lived, too dangerous, too environmentally challenging to produce and to dispose, and of course too expensive, which is too bad. Regards, Kent -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] converting Monarch 10EE
There are more large motors like that around than you might suspect. The local Omnisource scrap yard had a 6000 hp motor blow and they replaced it with a bigger motor. I think 8000 hp. They shred cars and whatever else they can fit into it. I went to an aluminum recycling place once that needed some help with their controls and they had a 5000 hp motor driving their aluminum shredder. The motor looked like a small building with a big shaft hanging out the side. Every once in a while the shredder would jam up and people would have to climb into the machinery with pry bars to get the stuck pieces out.. no thanks... That machine was crazy loud. They used front end construction loaders to load the conveyor that fed the shredder. The result was small mountains of shredded aluminum. There is a steel mill nearby that has some huge motors that drive the roller shafts directly - no gearboxes. The motors are so big that they have doors in the side of them with steps leading up to the doors so people can go into the motors to service them. The doors are full height..not short ones.. Those motors run off of Cycloconverter drives. Also crazy big. http://en.wikipedia.org/wiki/Cycloconverter Dave On 4/30/2013 3:20 PM, Pete Matos wrote: John That is amazing to me mani mean I have seen some monster electric motors before but 3k HP is nutz .. I know the motors they used on the draw bridges in South Florida where I used to live were big DC I believe and they lifted some amazing loads via counterbalance and gearing.Lots of industrial application for motors like this. I also find it interesting that there is so much resistance to electric vehicles in the world when so many of the largest and most powerful vehicles are moved with electric power. It is an awesome force and must be interesting to work in that field. Peace Pete On Tuesday, April 30, 2013, John Kasunichjmkasun...@fastmail.fm wrote: On Tue, Apr 30, 2013, at 02:14 PM, Stephen Dubovsky wrote: SCR dc drives? Is this the 70's? LOL. Im kidding. But only partially:) SMD For anything more than a few HP, SCRs still rule the DC drive world. I guess the toy stuff, under 1HP, is all PWM based these days. Small but not toys, say 1 to 5 HP, is probably a mix. But I bet there aren't many PWM DC drives above 5HP. My perspective is skewed somewhat, since the company I work for makes industrial DC drives, from about 20HP up. We don't mess with the tiny stuff. We recently shipped a 3000HP DC drive for use in a steel mill. -- John Kasunich jmkasun...@fastmail.fm -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] ABB Robots in Sweden
I've been trying to get an ABB for a long time with no success. If Lars isn't taking it further I might be interested. /Sven 2013/4/29 Lars Andersson l...@larsandersson.com Oh yes, I would be interested in an old ABB robot for a reasonable price. I live within easy travel distace from ABB if the robots are there. A chap contacted me about my Arduino boards for resolvers. He has a pair of ABB robots he got for a steal. He is talking in terms of breaking for parts (specifically the harmonic drives). I think that the robots have DC motors + Resolvers. The original drives apparently work, but not the rest of the system. Rather than see them dismantled for parts (though I would actually be rather tempted by the harmonic drives myself :-) I offered to ask here if anyone would be interested. I _think_ this would be an easy Mesa 7i49 conversion. -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] converting Monarch 10EE
On 30 April 2013 21:50, Kent A. Reed kentallanr...@gmail.com wrote: Every few years one research group or another issues a breathless press release about its laboratory breakthrough which will revolutionize battery technology (searching the Internet on electric battery breakthrough is instructive). There have been advances certainly but they've been more evolutionary than revolutionary I consider the performance of the LiIon batteries in my power tools pretty revolutionary. I cut the plug off my main-powered drill and used it for something else. Compared to the first generation NiCad drills etc there is no comparision. Another area to look at is the LiPo cells in toy helicopters. I looked at an electric flying machine about 20 years ago as an academic research project, and it was basically impossible. Now they are childrens' toys. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] converting Monarch 10EE
We have a scrapyard nearby that has a lot of very large motors, but I think they might be from trains and there is an obvious size limit on those. The ones you describe seem bigger. On Tue, Apr 30, 2013 at 4:49 PM, Dave e...@dc9.tzo.com wrote: There are more large motors like that around than you might suspect. The local Omnisource scrap yard had a 6000 hp motor blow and they replaced it with a bigger motor. I think 8000 hp. They shred cars and whatever else they can fit into it. I went to an aluminum recycling place once that needed some help with their controls and they had a 5000 hp motor driving their aluminum shredder. The motor looked like a small building with a big shaft hanging out the side. Every once in a while the shredder would jam up and people would have to climb into the machinery with pry bars to get the stuck pieces out.. no thanks... That machine was crazy loud. They used front end construction loaders to load the conveyor that fed the shredder. The result was small mountains of shredded aluminum. There is a steel mill nearby that has some huge motors that drive the roller shafts directly - no gearboxes. The motors are so big that they have doors in the side of them with steps leading up to the doors so people can go into the motors to service them. The doors are full height..not short ones.. Those motors run off of Cycloconverter drives. Also crazy big. http://en.wikipedia.org/wiki/Cycloconverter Dave On 4/30/2013 3:20 PM, Pete Matos wrote: John That is amazing to me mani mean I have seen some monster electric motors before but 3k HP is nutz .. I know the motors they used on the draw bridges in South Florida where I used to live were big DC I believe and they lifted some amazing loads via counterbalance and gearing. Lots of industrial application for motors like this. I also find it interesting that there is so much resistance to electric vehicles in the world when so many of the largest and most powerful vehicles are moved with electric power. It is an awesome force and must be interesting to work in that field. Peace Pete On Tuesday, April 30, 2013, John Kasunichjmkasun...@fastmail.fm wrote: On Tue, Apr 30, 2013, at 02:14 PM, Stephen Dubovsky wrote: SCR dc drives? Is this the 70's? LOL. Im kidding. But only partially:) SMD For anything more than a few HP, SCRs still rule the DC drive world. I guess the toy stuff, under 1HP, is all PWM based these days. Small but not toys, say 1 to 5 HP, is probably a mix. But I bet there aren't many PWM DC drives above 5HP. My perspective is skewed somewhat, since the company I work for makes industrial DC drives, from about 20HP up. We don't mess with the tiny stuff. We recently shipped a 3000HP DC drive for use in a steel mill. -- John Kasunich jmkasun...@fastmail.fm -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes.
Re: [Emc-users] cnc this
--- On Tue, 4/30/13, kqt4a...@gmail.com kqt4a...@gmail.com wrote: Looks like a cool antique Brain fart, http://neworleans.craigslist.org/tls/3768221480.html It's a 9 Model C Workshop lathe. Model C because it has no gearbox or power feeds. I don't see bottom oilers sticking out the front of the headstock, but with the picture angle they could be hidden, so would top oilers. The small dials put it in the WW2 or earlier era. The single step pulley on the countershaft and the countershaft support that's not hinged for easy shifting of the flat belt also peg it as a very old one. Might even predate South Bend's introduction of their quick change gearbox, in which they lagged behind pretty much the entire lathe industry by a year or two. The Model A, B, C designations came along after the intro of the QCGB. -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] treamill motors (was converting Monarch 10EE)
Speak of the devil...? http://www.cnczone.com/forums/general_electronics_discussion/178760-poll_treadmill_motors_information_wanted.html sam On 04/30/2013 12:16 PM, Gene Heskett wrote: On Tuesday 30 April 2013 13:15:33 andy pugh did opine: On 30 April 2013 16:56, Cecil Thomas wctho...@chartertn.net wrote: These 1 1/2 to 2 hp motors develop that hp at 5000 to 6000 rpm. You will have to rethink your drive coupling system to reduce that speed down to something usable especially for threading. Which is why I fancy experimenting with this: https://plus.google.com/photos/108164504656404380542/albums/574772215574 1347649/5832689638364145858?banner=pwa Kewl Andy. What car was that headed for? Cheers, Gene -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] converting Monarch 10EE
--- On Tue, 4/30/13, John Kasunich jmkasun...@fastmail.fm wrote: From: John Kasunich jmkasun...@fastmail.fm Subject: Re: [Emc-users] converting Monarch 10EE To: emc-users@lists.sourceforge.net Date: Tuesday, April 30, 2013, 12:56 PM On Tue, Apr 30, 2013, at 02:14 PM, Stephen Dubovsky wrote: SCR dc drives? Is this the 70's? LOL. Im kidding. But only partially:) SMD For anything more than a few HP, SCRs still rule the DC drive world. I guess the toy stuff, under 1HP, is all PWM based these days. Small but not toys, say 1 to 5 HP, is probably a mix. But I bet there aren't many PWM DC drives above 5HP. kbelectronics.net has PWM for just about anything you want to spin with DC On the lower end... The KBWT-26 list price is $168.00 (1HP) The KBWT-210 list price is $228.00 (2HP) Those are bare units, no enclosure, no fancy display. Setup for an on/off and a speed rheostat. They have a safety system so the speed has to be turned to zero before they'll power up. They have ones capable of plenty higher outputs, as well as ones with fancy enclosures, displays, buttons etc. -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] How about a 1Ghz PIII for 2 axis?
Picked up a Dell Dimension L100R for free. Has parallel and serial ports, 1 Ghz Socket 370 PIII with 512K cache (better than the 256K version) and will have 512 meg PC133 once I find another 256 meg stick it likes. I have a couple it sees as only 32 meg. (512 is max for this model.) I put an 80 gig hard drive in, have a CD-RW to replace the CD-ROM and need to find a PCI video card instead of using the built in video that cuts out a hunk of main RAM. This is a tiny little box, couldn't get much smaller without squeezing it sideways and putting the optical drive in on edge. For the big plasma table I have a mpc ClientPro 365. Much more muscle to it so it'll be able to handle XP + Mach3 and run the CAD and other software. All the little Dell will be doing is running LinuxCNC on the torch arm. Going to try and get Ned to go on a shopping trip to get components for that when he gets back from Utah. Found a surplus shop that has 4040 T-slot extrusion for $2.49 a foot, plus various sizes of cable carrier and plenty of other good stuff. I want to get that torch going first to cut some pieces for the big table's gantry. -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] treamill motors (was converting Monarch 10EE)
On Tue, 30 Apr 2013 12:25:05 -0400, you wrote: On Tuesday 30 April 2013 12:06:13 Cecil Thomas did opine: Gene, You need to remember that the seemingly high hp ratings of these relatively small motors is due to the very high rpms at which the ratings are valid. These 1 1/2 to 2 hp motors develop that hp at 5000 to 6000 rpm. You will have to rethink your drive coupling system to reduce that speed down to something usable especially for threading. I am aware of that, the toothed belt pulleys stock on the 7x means its turning about 8000 revs to get the 2500 rated in high back gear. I very rarely use it as there isn't enough torque to even cut alu 1/2 in diameter. Gene I'm running a no name US made treadmill motor as a spindle motor on an SX3 mill, it says on the label 2.75 HP, 180VDC, Rated speed is 5700rpm. The brushes are 180 degreed to the armature and the motor casing, despite this it's 1000 rpm down in reverse to it's normal 5700 rpm. at 180V. It has 12 windings on the armature. It's coggy at less than 500 motor rpm. It's had an encoder fitted and I tried as a servo and failed. It generates a lot of heat and has to be fan cooled. But it's lasted pretty well. It's done thousands of hours, had three sets of brushes and it's due for it's third set of bearings when I get around to it. Works OK in it's present use linked to a KBIC-225 speed controller with a 2:1 reduction to the spindle and it's got bags of torque at anything over 1000 rpm at the motor. I've got the largest plug in horsepower resistor fitted so controller's good to 16A at 180VDC. The max load I've ever seen is 9A and I had to back off the feedrate as the machine was struggling and complaining, but the spindle never dropped more than 20rpm from the 2000 I'd set. I was running a 15mm end mill at the time in AL and it got into some sort of resonant vibration - thought it was going to bust something but it didn't. I like the KB SCR drives - they are pretty linear speed wise and easy to interface using an isolated PWM to Voltage adapter. The IR compensation works pretty good too if set correctly, little or no speed change under load to free running. And most importantly they are inexpensive! Steve Blackmore -- -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] How about a 1Ghz PIII for 2 axis?
On Apr 30, 2013 6:56 PM, Gregg Eshelman g_ala...@yahoo.com wrote: Picked up a Dell Dimension L100R for free. Has parallel and serial ports, 1 Ghz Socket 370 PIII with 512K cache (better than the 256K version) and will have 512 meg PC133 once I find another 256 meg stick it likes. I have a couple it sees as only 32 meg. (512 is max for this model.) Gregg: First things first. Have you run the latency test on this box? I seem to remember getting disappointing results on this or a very similar sounding Dell model (it wasn't mine so I can't check now). I don't see it listed in the table on the Wiki, though. That could mean my memory is faulty or it could mean I didn't think the results interesting enough for such an old system to bother to report. For your sake I hope it's the former. Regards, Kent -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] How about a 1Ghz PIII for 2 axis?
On Tue, Apr 30, 2013 at 03:49:00PM -0700, Gregg Eshelman wrote: Picked up a Dell Dimension L100R for free. Has parallel and serial ports, 1 Ghz Socket 370 PIII with 512K cache (better than the 256K version) and will have 512 meg PC133 once I find another 256 meg stick it likes. I have a couple it sees as only 32 meg. (512 is max for this model.) I bet it will work great if you can find RAM for it. I have a dual PIII-1000 with 640MB of RAM that I used for a long time, both before and after we had SMP support, and it had excellent latency and was plenty fast enough. Mine has lucid on it now -- you could even use the hardy install if lucid doesn't work or if it seems to want to swap a lot. Chris -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] treamill motors (was converting Monarch 10EE)
jeremy youngs wrote: gene this is what jon offers and i am salivating over :) http://pico-systems.com/osc2.5/catalog/product_info.php?products_id=26 i figure if using rectified line voltage it would give about 3 hp out of my 2.5, with fan to cool it and would only need an isolation transformer for safety, once i am back in m o this and a mesa card will be my next upgrade I would not recommend running these from rectified line voltage. If you put a bridge rectifier and filter capacitor on 120 V AC, you will get 167 V DC. These servo amps were designed to go up to 160 V or so, but have never been tested above 122 V DC. If you can get a transformer with an AC output of 84 to 86 V, that is ideal. Otherwise you might rig a buck transformer to the isolation transformer to reduce the voltage. Jon -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] treamill motors (was converting Monarch 10EE)
Gene Heskett wrote: On Tuesday 30 April 2013 12:52:04 jeremy youngs did opine: gene this is what jon offers and i am salivating over :) http://pico-systems.com/osc2.5/catalog/product_info.php?products_id=26 I can see why, but two things: The minimum PWM freq of 25khz, and the 12 volt enable. I don't have any 12 volts in my boxes that isn't busy running fans. And LCNC can't make a PWM at 25KHZ. Best it could do, on an atom board, would be a 12.5 khz square wave. So I'd have to put some other card into there to generate that high a repetition rate pulse. The 4 channel universal at $250, while no doubt nice, is too much for my toy budget. The 12 V is the logic supply, and it only takes 100 mA at the most. The 25 KHz is not strict, but the output filter won't work well at low frequencies. At the higher voltages there is a tradeoff between high frequency and high ripple current in the output heating up the filter inductors and the motor windings. But, trying to generate PWM by software is pretty tough. My PWM controller has 25 ns resolution on the pulse width. It doesn't make sense for just a spindle, but if you are going to run several servo axes with it, it is at least a better deal. Jon -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] treamill motors (was converting Monarch 10EE)
yes jon i just checked my math and 120x1.414 is 169 ? where was my head at when i was calculating that last month :( thats kinda sad b/c it seems large transformers are always necessary , and the cores seem to be the problem to get if one wants to roll their own. hey you could always design for 180 volt no??? ( wink wink ) :)) also on the way back to mo to happen in the next 60 days do you have a store front or let random internet strangers poke around ??? On Tue, Apr 30, 2013 at 9:35 PM, Jon Elson el...@pico-systems.com wrote: jeremy youngs wrote: gene this is what jon offers and i am salivating over :) http://pico-systems.com/osc2.5/catalog/product_info.php?products_id=26 i figure if using rectified line voltage it would give about 3 hp out of my 2.5, with fan to cool it and would only need an isolation transformer for safety, once i am back in m o this and a mesa card will be my next upgrade I would not recommend running these from rectified line voltage. If you put a bridge rectifier and filter capacitor on 120 V AC, you will get 167 V DC. These servo amps were designed to go up to 160 V or so, but have never been tested above 122 V DC. If you can get a transformer with an AC output of 84 to 86 V, that is ideal. Otherwise you might rig a buck transformer to the isolation transformer to reduce the voltage. Jon -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- jeremy youngs -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] converting Monarch 10EE
Gregg Eshelman wrote: --- On Tue, 4/30/13, John Kasunich jmkasun...@fastmail.fm wrote: From: John Kasunich jmkasun...@fastmail.fm Subject: Re: [Emc-users] converting Monarch 10EE To: emc-users@lists.sourceforge.net Date: Tuesday, April 30, 2013, 12:56 PM On Tue, Apr 30, 2013, at 02:14 PM, Stephen Dubovsky wrote: SCR dc drives? Is this the 70's? LOL. Im kidding. But only partially:) SMD For anything more than a few HP, SCRs still rule the DC drive world. I guess the toy stuff, under 1HP, is all PWM based these days. Small but not toys, say 1 to 5 HP, is probably a mix. But I bet there aren't many PWM DC drives above 5HP. kbelectronics.net has PWM for just about anything you want to spin with DC On the lower end... The KBWT-26 list price is $168.00 (1HP) The KBWT-210 list price is $228.00 (2HP) And, I THINK they are SCR. I have a KBMG-212D here, and the motor buzzes like a buzzer when it starts. Jon -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] treamill motors (was converting Monarch 10EE)
On Tuesday 30 April 2013 22:04:26 Steve Blackmore did opine: On Tue, 30 Apr 2013 12:25:05 -0400, you wrote: On Tuesday 30 April 2013 12:06:13 Cecil Thomas did opine: Gene, You need to remember that the seemingly high hp ratings of these relatively small motors is due to the very high rpms at which the ratings are valid. These 1 1/2 to 2 hp motors develop that hp at 5000 to 6000 rpm. You will have to rethink your drive coupling system to reduce that speed down to something usable especially for threading. I am aware of that, the toothed belt pulleys stock on the 7x means its turning about 8000 revs to get the 2500 rated in high back gear. I very rarely use it as there isn't enough torque to even cut alu 1/2 in diameter. Gene I'm running a no name US made treadmill motor as a spindle motor on an SX3 mill, it says on the label 2.75 HP, 180VDC, Rated speed is 5700rpm. The brushes are 180 degreed to the armature and the motor casing, despite this it's 1000 rpm down in reverse to it's normal 5700 rpm. at 180V. It has 12 windings on the armature. It's coggy at less than 500 motor rpm. It's had an encoder fitted and I tried as a servo and failed. It generates a lot of heat and has to be fan cooled. But it's lasted pretty well. It's done thousands of hours, had three sets of brushes and it's due for it's third set of bearings when I get around to it. Works OK in it's present use linked to a KBIC-225 speed controller with a 2:1 reduction to the spindle and it's got bags of torque at anything over 1000 rpm at the motor. I've got the largest plug in horsepower resistor fitted so controller's good to 16A at 180VDC. The max load I've ever seen is 9A and I had to back off the feedrate as the machine was struggling and complaining, but the spindle never dropped more than 20rpm from the 2000 I'd set. I was running a 15mm end mill at the time in AL and it got into some sort of resonant vibration - thought it was going to bust something but it didn't. I like the KB SCR drives - they are pretty linear speed wise and easy to interface using an isolated PWM to Voltage adapter. The IR compensation works pretty good too if set correctly, little or no speed change under load to free running. And most importantly they are inexpensive! Steve Blackmore Sounds good Steve. Now, if I just had an X3. This is an x1 retrofitted by Chris's bigger tables. TBT, its a pretty good imitation of a willow tree, so tool life is short cutting itty bitty chips. 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) My web page: http://coyoteden.dyndns-free.com:85/gene is up! My views http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml Serocki's Stricture: Marriage is always a bachelor's last option. A pen in the hand of this president is far more dangerous than 200 million guns in the hands of law-abiding citizens. -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] treamill motors (was converting Monarch 10EE)
jeremy youngs wrote: yes jon i just checked my math and 120x1.414 is 169 ? where was my head at when i was calculating that last month :( thats kinda sad b/c it seems large transformers are always necessary , and the cores seem to be the problem to get if one wants to roll their own. hey you could always design for 180 volt no??? ( wink wink ) :)) Well, I get fidgety when people want to hook my amps directly to the line. If something goes wrong, there would be HUGE explosions and the amp would be reduced to smoldering rubble. Of course, this can happen with an isolated supply, as well, but other than the guy who took the insulating heat conductors out of my amps, that pretty much has never happened. The transformers don't have to be real large, and the step-down transformers used on gear that ran off 480 V can be reset to give you 60 V AC for 84 V DC. That may be enough. otherwise, you can set up a 1:1 isolation transformer with a buck transformer to get most any voltage you want. The buck transformer can be much smaller than the isolation transformer. also on the way back to mo to happen in the next 60 days do you have a store front or let random internet strangers poke around ??? Pico Systems is basically my home basement! If you wanted to drop by and see my shop and talk about CNC stuff, I'd be glad to see you. Jon -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
