Re: [Emc-users] Equivalent replacements for these old servos?
On Sat, 8/3/13, Kirk Wallace kwall...@wallacecompany.com wrote: Subject: Re: [Emc-users] Equivalent replacements for these old servos? To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Date: Saturday, August 3, 2013, 9:14 AM On 08/02/2013 11:46 PM, Gregg Eshelman wrote: Something else about this mill, it has cogged belts for speed reduction on all three axes. I haven't had time since bringing it home to start taking things apart. Was an over 600 mile round trip to get it. * When do we get to see pictures? http://partsbyemc.com/pub/ look at the pics that start with acra, and the rest of the stuff if you want. The rust on the ways? That's nothing. A little steel wool and Deep Creep will wipe it right off. I've cleaned up much worse on lathe beds. The logos are re-creations I made of some vintage logos. The Powr-Kraft one I did for my 1940 Montgomery Ward lathe and the Blackhawk one is for a very old steel Porto-Power carrying case I'm restoring, possibly for use as a briefcase. Replace the /pub with /catalog to see the reproduction car parts I make. Will be at a sci-fi/anime/horror/etc convention in Nampa, ID all this weekend. Haven't missed it since its first year in 2004. ;-) This is my annual three day vacation from everything. * In Idaho? I thought we Californians were known for our fruits and nuts. :) fandemonium.org It's no ComicCon but it's been growing. Got almost 800 attendees last year. It's an all-genre, family friendly convention, though we do have some 18+ events. I was on staff the first 4 or 5 years. Much less stressful as a 'normal' attendee, though if I lived closer than the 75 miles from Weiser to Boise (where most of the staff meetings etc are held) I'd dive right back into being on the staff. ;-) -- Get your SQL database under version control now! Version control is standard for application code, but databases havent caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out. http://pubads.g.doubleclick.net/gampad/clk?id=49501711iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Equivalent replacements for these old servos?
On Sat, 8/3/13, andy pugh bodge...@gmail.com wrote: Subject: Re: [Emc-users] Equivalent replacements for these old servos? To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Date: Saturday, August 3, 2013, 6:53 AM On 3 August 2013 06:17, Gregg Eshelman g_ala...@yahoo.com wrote: http://www.ebay.com/itm/3-Sets-Mitsubishi-MR-J2S-40B-HC-KFS43B-400W-AC-Servo-Drive-Motor-/30975587?pt=LH_DefaultDomain_0hash=item19dfec1d63 Then there's the power supply or supplies and a controller to buy. Also, those are used parts. Could last forever, could last just until the point where the seller won't replace them. Used parts so well tested :-) Those drives are mains-input so there is no need for a separate power supply. --- I don't have 3 phase power in my shop, if a converter would run them I'd need a separate one just for those. Still something to keep on the maybe list. It depends on how much I can get out of the lathes I have for sale. -- Get your SQL database under version control now! Version control is standard for application code, but databases havent caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out. http://pubads.g.doubleclick.net/gampad/clk?id=49501711iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Equivalent replacements for these old servos?
On Sat, 8/3/13, Dave e...@dc9.tzo.com wrote: Those Mitsubishi motors and drives have a really good reputation in the US. I work with a company that puts them on some high speed lacing machines which is pretty much a torture test and they run and run. If those are good drives, motors and gearboxes that would be a good deal. Machmotion is selling a similar Teco servo motor/drive/gearbox setup. Dave I looked up the specs on the HC-KFS43B. They're wee little things. Smaller than the DC brush motors on it. For the Z axis I can't go any larger diameter than the Baldor that's on it. Rated torque of those AC motors is 1.3 NM, peak torque 3.9 NM. I don't know the rated torque of the current motors, their peak/stall is 3 NM. I didn't see any torque numbers other than the peak/stall when looking for specs on the vintage ones. Dunno if 1.3 NM would be enough to move that large table around, though it has ball screws and cogged belt reduction drives. The MR-J2S-40B1 looks like it would suit me better since the label only shows 1 phase power input. -- Get your SQL database under version control now! Version control is standard for application code, but databases havent caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out. http://pubads.g.doubleclick.net/gampad/clk?id=49501711iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Equivalent replacements for these old servos?
Those Mitsu drives are good for both 3 phase and single phase ... look closely at the label..So you could run them on single phase 240 volts without problems.. Dave On 8/4/2013 12:31 AM, Gregg Eshelman wrote: On Sat, 8/3/13, Davee...@dc9.tzo.com wrote: Those Mitsubishi motors and drives have a really good reputation in the US. I work with a company that puts them on some high speed lacing machines which is pretty much a torture test and they run and run. If those are good drives, motors and gearboxes that would be a good deal. Machmotion is selling a similar Teco servo motor/drive/gearbox setup. Dave I looked up the specs on the HC-KFS43B. They're wee little things. Smaller than the DC brush motors on it. For the Z axis I can't go any larger diameter than the Baldor that's on it. Rated torque of those AC motors is 1.3 NM, peak torque 3.9 NM. I don't know the rated torque of the current motors, their peak/stall is 3 NM. I didn't see any torque numbers other than the peak/stall when looking for specs on the vintage ones. Dunno if 1.3 NM would be enough to move that large table around, though it has ball screws and cogged belt reduction drives. The MR-J2S-40B1 looks like it would suit me better since the label only shows 1 phase power input. -- Get your SQL database under version control now! Version control is standard for application code, but databases havent caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out. http://pubads.g.doubleclick.net/gampad/clk?id=49501711iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get your SQL database under version control now! Version control is standard for application code, but databases havent caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out. http://pubads.g.doubleclick.net/gampad/clk?id=49501711iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Equivalent replacements for these old servos?
I've had good luck with these Teco drives also.. http://machmotion.com/cnc-products/drives-motors/400w-3000rpm-ac-servo-drive-and-motor.html I've been involved in the purchase and installation of dozens of the 1 KW and up motors and they just run and run and in some really difficult environments.I was doing some support work for a company in China via a remote recently and and they brought in some local help... it was a guy from Taiwan who does work for TECO.. :-) I have no relationship with either Teco or Machmotion.. other than a happy customer. Small world. Dave On 8/4/2013 12:45 AM, Gregg Eshelman wrote: On Sat, 8/3/13, Kirk Wallacekwall...@wallacecompany.com wrote: Subject: Re: [Emc-users] Equivalent replacements for these old servos? To: Enhanced Machine Controller (EMC)emc-users@lists.sourceforge.net Date: Saturday, August 3, 2013, 9:14 AM On 08/02/2013 11:46 PM, Gregg Eshelman wrote: Something else about this mill, it has cogged belts for speed reduction on all three axes. I haven't had time since bringing it home to start taking things apart. Was an over 600 mile round trip to get it. * When do we get to see pictures? http://partsbyemc.com/pub/ look at the pics that start with acra, and the rest of the stuff if you want. The rust on the ways? That's nothing. A little steel wool and Deep Creep will wipe it right off. I've cleaned up much worse on lathe beds. The logos are re-creations I made of some vintage logos. The Powr-Kraft one I did for my 1940 Montgomery Ward lathe and the Blackhawk one is for a very old steel Porto-Power carrying case I'm restoring, possibly for use as a briefcase. Replace the /pub with /catalog to see the reproduction car parts I make. Will be at a sci-fi/anime/horror/etc convention in Nampa, ID all this weekend. Haven't missed it since its first year in 2004. ;-) This is my annual three day vacation from everything. * In Idaho? I thought we Californians were known for our fruits and nuts. :) fandemonium.org It's no ComicCon but it's been growing. Got almost 800 attendees last year. It's an all-genre, family friendly convention, though we do have some 18+ events. I was on staff the first 4 or 5 years. Much less stressful as a 'normal' attendee, though if I lived closer than the 75 miles from Weiser to Boise (where most of the staff meetings etc are held) I'd dive right back into being on the staff. ;-) -- Get your SQL database under version control now! Version control is standard for application code, but databases havent caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out. http://pubads.g.doubleclick.net/gampad/clk?id=49501711iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get your SQL database under version control now! Version control is standard for application code, but databases havent caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out. http://pubads.g.doubleclick.net/gampad/clk?id=49501711iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] slow speed stepping - am I missing something?
I have a stepper based mill that I have reconfigured to use a Gecko G540. Stepper motors rated 3A, with the G540 resistor setup, I'm using a 2.2k resistor, giving 2.2A. Power supply is 43v. (48 v switcher, tuned down to 43v because that's the voltage the G540 docs say to use with the inductance of these motors) It can run all day back and forth, always hitting 0, at speeds like up to 1,000 MM/min, and faster. When I try 5mm/min, the machine is fine. 2mm/min and it's fine, too, but at about 1mm/min, the machine misses steps. Or, will not step at all. I have the system apart, and have the ability to tweak the G540 trim pots, and no matter what I do, I can't get the machine to step at about 2mm/min or slower. Should I be able to? I assume so - otherwise arcs and other slight angles would not be CNC machinable. Help/comments/guidance requested. John A. Stewart. -- Get your SQL database under version control now! Version control is standard for application code, but databases havent caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out. http://pubads.g.doubleclick.net/gampad/clk?id=49501711iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] slow speed stepping - am I missing something?
Stewart Have a look at the timing requirements for the G540. As far as I recall it needs some longer pulses. You have to set the step pulse length as well as some other settings. There is some wiki stuff about this. On 2013/08/04 10:51 PM, John Alexander Stewart wrote: I have a stepper based mill that I have reconfigured to use a Gecko G540. Stepper motors rated 3A, with the G540 resistor setup, I'm using a 2.2k resistor, giving 2.2A. Power supply is 43v. (48 v switcher, tuned down to 43v because that's the voltage the G540 docs say to use with the inductance of these motors) It can run all day back and forth, always hitting 0, at speeds like up to 1,000 MM/min, and faster. When I try 5mm/min, the machine is fine. 2mm/min and it's fine, too, but at about 1mm/min, the machine misses steps. Or, will not step at all. I have the system apart, and have the ability to tweak the G540 trim pots, and no matter what I do, I can't get the machine to step at about 2mm/min or slower. Should I be able to? I assume so - otherwise arcs and other slight angles would not be CNC machinable. Help/comments/guidance requested. John A. Stewart. -- Get your SQL database under version control now! Version control is standard for application code, but databases havent caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out. http://pubads.g.doubleclick.net/gampad/clk?id=49501711iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Regards / Groete Marius D. Liebenberg MasterCut cc Cel: +27 82 698 3251 Tel: +27 12 743 6064 Fax: +27 86 551 8029 Skype: marius_d.liebenberg --- avast! Antivirus: Outbound message clean. Virus Database (VPS): 130804-0, 2013/08/04 Tested on: 2013/08/04 11:14:19 PM avast! - copyright (c) 1988-2013 AVAST Software. http://www.avast.com -- Get your SQL database under version control now! Version control is standard for application code, but databases havent caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out. http://pubads.g.doubleclick.net/gampad/clk?id=49501711iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] slow speed stepping - am I missing something?
On 4 August 2013 21:51, John Alexander Stewart ivatt...@gmail.com wrote: Should I be able to? Absolutely. Going very slowly is what steppers are best at. I wonder if something is (Accidentally) AC-coupled somewhere? -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Get your SQL database under version control now! Version control is standard for application code, but databases havent caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out. http://pubads.g.doubleclick.net/gampad/clk?id=49501711iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] running a DOS cam program in linux
I have a cam program - SMARTCAM turning V7.5- that runs in dos. Currently on a very old laptop under win 95 The floppy drive is hooped and there is no network port or USB. I would like to run it under linux. Is there any suggestions on what to use to try this? Should I run win95 in a VM or something like DOSbox? It uses a parallel port dongle for copy protection. Does anyone else have any smartcam products of about this era? Like advanced turning or milling? Chris M -- Get your SQL database under version control now! Version control is standard for application code, but databases havent caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out. http://pubads.g.doubleclick.net/gampad/clk?id=49501711iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] running a DOS cam program in linux
I would try DOSbox first. I used it for a program that had to communicate via serial port and it worked great. It's nice because it's small and you don't need a VM. On 08/04/2013 04:45 PM, Chris Morley wrote: I have a cam program - SMARTCAM turning V7.5- that runs in dos. Currently on a very old laptop under win 95 The floppy drive is hooped and there is no network port or USB. I would like to run it under linux. Is there any suggestions on what to use to try this? Should I run win95 in a VM or something like DOSbox? It uses a parallel port dongle for copy protection. Does anyone else have any smartcam products of about this era? Like advanced turning or milling? Chris M -- Get your SQL database under version control now! Version control is standard for application code, but databases havent caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out. http://pubads.g.doubleclick.net/gampad/clk?id=49501711iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get your SQL database under version control now! Version control is standard for application code, but databases havent caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out. http://pubads.g.doubleclick.net/gampad/clk?id=49501711iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
