Re: [Emc-users] Lathe spindle bearing problems
Morning: I retired from the screw machine world some 15 yrs. ago. The grease we used in the spindles was a Kluber brand sinthetic grease. Very spendy, very good though. The spindles that the grease was used in would go from 0 to 10,000 RPM and back to 0 approx. twice a minute, 24 hrs. per day, 5 days a week and had operated over 10 yrs. without any service to the spindles up to my retirement. These machines were Star brand swiss style screw machines. I know that all the other brands also used the same grease in their spindles. I remember having to service the spindle from another larger machine after a power glitch and servo failure and my boss complaining about the cost of a tube of grease. It is very common to remove the bearing cup by welding and at my time of retirement maintaince had a series of non conductive sleeves they would slide in to prevent spatter and a arc from leaving a buger on the ID. Before I left MN for AZ I stopped buy the local auto repair shop and they proudly showed me the better part of a 5 gallon pail full of bearing races that had been removed with the welding technique. Seeya Bob Malterer - Original Message - From: Marius Liebenberg mar...@mastercut.co.za To: emc-users@lists.sourceforge.net Sent: Thursday, November 27, 2014 9:13 PM Subject: Re: [Emc-users] Lathe spindle bearing problems A puller like that would be nice to have but I am afraid that there is no gap or any protrusion of the bearing race to grip on. On 2014-11-27 22:49, Marcus Bowman wrote: On 27 Nov 2014, at 20:21, Marius Liebenberg wrote: I will do the weld bead tomorrow and hopefully it will come out without too much trouble. It's a counsel of perfection, I guess, at this stage, but I would use a puller fitted with very thin lips at right angles to the legs. These are designed to remove bearings from blind holes in car engines or gearboxes. The little lips are hardened and when you tighten the puller it squeezes the lips in behind the bearing, by wedging it into the radius in the outer casing of the bearing (the bit you have stuck in there at the moment). A GOOD QUALITY puller works well, and can get enough grip to ease the bearing off the bottom of the hole and get it out. I have done this once or twice and it is a good solution. My friend has a selection of good pullers for all sorts of awkward jobs like this. At this stage, unless you know someone with a puller like this, welding is probably your only other option. Marcus On 2014-11-27 19:30, Ed wrote: On 11/27/2014 10:52 AM, Marius Liebenberg wrote: So a little bigger tap with a little bigger mallet did the job. The front bearing fell apart and is badly worn. Now the seat is stuck inside the headstock To take out a bearing cup I use an arc welder and run a bead of weld around the inside of the cup, let it cool down, extract with fingers or tap the housing with your mallet. It can be done by heating with an oxy-acet torch but you must be fast in, fast heat and fast out. Arc works MUCH better. and the bearing piece is stuck to the shaft and I have no idea how to get it out. The bearing race on the shaft is probably best removed by carefully grinding through the race in a couple of spots and cracking it with a chisel. Ed. -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/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 +27 82 698 3251 +27 12 743 6064 QQ 1767394877 -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar
Re: [Emc-users] . Re: LCNC VS Machinekit JWP (Niemand Sonst)
Date: Wed, 26 Nov 2014 18:06:04 + From: cncbas...@gmail.com To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] . Re: LCNC VS Machinekit JWP (Niemand Sonst) ok am i correct that Machinekit does Jog while paused ( or whatever everyone wants to call it ) if thats the case then Linuxcnc for me must go out in the trash bin ... and i must go and use machinekit , i dont have an alternative for customers . it's no good arguing if it's needed or not workarounds are for Windows People , On 26 November 2014 at 17:48, Niemand Sonst nie...@web.de wrote: for completeness: https://github.com/mhaberler/asciidoc-sandbox/wiki/Jog-while-paused-support Seems they have it and consider it stop gap. The dro's zero at pause and then show distance to go from the pause point. Moves axes not joints. Uses HAL pins for jogging not regular GUI or handwheels. Chris M -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] . Re: LCNC VS Machinekit JWP (Niemand Sonst)
thanks Chris still seems to be a mess and a hack , rather than a clean implementation , so i'll take it as unclean code , and not working at this stage i'm unclear as to the reason of as you say the dro's zero , i would expect them if my logic is correct to track the correct distances with perhaps a in memory dro for the distances traveled whilst in pause , unless the dro's are manually reset , as were the dro's reset then picking up the paused position after jog or any movement would not be possible to say pick up the point at pause , and continue ... Dave On 28 November 2014 at 09:35, Chris Morley chrisinnana...@hotmail.com wrote: Date: Wed, 26 Nov 2014 18:06:04 + From: cncbas...@gmail.com To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] . Re: LCNC VS Machinekit JWP (Niemand Sonst) ok am i correct that Machinekit does Jog while paused ( or whatever everyone wants to call it ) if thats the case then Linuxcnc for me must go out in the trash bin ... and i must go and use machinekit , i dont have an alternative for customers . it's no good arguing if it's needed or not workarounds are for Windows People , On 26 November 2014 at 17:48, Niemand Sonst nie...@web.de wrote: for completeness: https://github.com/mhaberler/asciidoc-sandbox/wiki/Jog-while-paused-support Seems they have it and consider it stop gap. The dro's zero at pause and then show distance to go from the pause point. Moves axes not joints. Uses HAL pins for jogging not regular GUI or handwheels. Chris M -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Coolant filtering
There seems to be a lot of effort to filter the cutting fluid. My machines run up to 10 hours a day and I only use my settling tank. No Filters. I change the cutting fluid every 6-8 months or so and wash out the settling tank and start again. I have found some filters cause the cutting fluid to aerate and then foam which was a real headache. -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Coolant filtering
2014-11-28 12:28 GMT+02:00 Marshland Engineering marshl...@marshland.co.nz: There seems to be a lot of effort to filter the cutting fluid. My machines run up to 10 hours a day and I only use my settling tank. No Filters. I change the cutting fluid every 6-8 months or so and wash out the settling tank and start again. Small screen to catch big stuff and a bucket as a settling tank seems to be working fine, thanks for the tips to everyone. Now it seems that windshield washing fluid pump is not happy about running more than 20 minutes nonstop - it is overheating. Can anyone suggest some cheap alternatives? AFAIK some use fish tank pumps, but something that would be able to handle 7 m long tube will cost more than 50 eur, so I am willing to do some experiments. Viesturs -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] . Re: LCNC VS Machinekit JWP (Niemand Sonst)
On 28 November 2014 at 09:35, Chris Morley chrisinnana...@hotmail.com wrote: Uses HAL pins for jogging not regular GUI or handwheels. A small and simple HAL component that mirrors the halui jogwheel interface and translates jogwheel counts and axis selections when paused into offsets would make either the HAL offset component _or_ the Machinekit pins look exactly like a true jog-while-paused on jogwheel-controlled machines. Devs and integrators would know it to be a hack, but to the operator it would look OK. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] . Re: LCNC VS Machinekit JWP (Niemand Sonst)
On 28 November 2014 at 10:03, David Armstrong cncbas...@gmail.com wrote: i'm unclear as to the reason of as you say the dro's zero , It may be because the machinekit jog-while-paused stashes the existing motion queue and creates a new one, then restores the old one at the end. (This is probably the right approach). I have not looked at the code in any detail, but from discussions I think part of what makes this harder than might be expected is that jogging is handled in a different way to normal motions (incremental jogs are just short feeds, and continuous jogs are straight feeds all the way to the soft-limits that get aborted, but I suspect that jogwheel jogs are rather more difficult to fit into a motion-queue context) and there are other GUI-specific quirks on top. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] . Re: LCNC VS Machinekit JWP (Niemand Sonst)
yea i was thinking possibly that might be true . i'll make a new repro and see if i can pull this as i'm having problems patching my very modified local repro and see exactly what happens On 28 November 2014 at 10:58, andy pugh bodge...@gmail.com wrote: On 28 November 2014 at 10:03, David Armstrong cncbas...@gmail.com wrote: i'm unclear as to the reason of as you say the dro's zero , It may be because the machinekit jog-while-paused stashes the existing motion queue and creates a new one, then restores the old one at the end. (This is probably the right approach). I have not looked at the code in any detail, but from discussions I think part of what makes this harder than might be expected is that jogging is handled in a different way to normal motions (incremental jogs are just short feeds, and continuous jogs are straight feeds all the way to the soft-limits that get aborted, but I suspect that jogwheel jogs are rather more difficult to fit into a motion-queue context) and there are other GUI-specific quirks on top. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Lathe spindle bearing problems
Hi Robert Thanks for the grease tip. I would have fitted normal wheel bearing grease. I will see if I can find what you suggested over here or at least something similar. On 2014-11-28 10:51, Robert Malterer wrote: Morning: I retired from the screw machine world some 15 yrs. ago. The grease we used in the spindles was a Kluber brand sinthetic grease. Very spendy, very good though. The spindles that the grease was used in would go from 0 to 10,000 RPM and back to 0 approx. twice a minute, 24 hrs. per day, 5 days a week and had operated over 10 yrs. without any service to the spindles up to my retirement. These machines were Star brand swiss style screw machines. I know that all the other brands also used the same grease in their spindles. I remember having to service the spindle from another larger machine after a power glitch and servo failure and my boss complaining about the cost of a tube of grease. It is very common to remove the bearing cup by welding and at my time of retirement maintaince had a series of non conductive sleeves they would slide in to prevent spatter and a arc from leaving a buger on the ID. Before I left MN for AZ I stopped buy the local auto repair shop and they proudly showed me the better part of a 5 gallon pail full of bearing races that had been removed with the welding technique. Seeya Bob Malterer - Original Message - From: Marius Liebenberg mar...@mastercut.co.za To: emc-users@lists.sourceforge.net Sent: Thursday, November 27, 2014 9:13 PM Subject: Re: [Emc-users] Lathe spindle bearing problems A puller like that would be nice to have but I am afraid that there is no gap or any protrusion of the bearing race to grip on. On 2014-11-27 22:49, Marcus Bowman wrote: On 27 Nov 2014, at 20:21, Marius Liebenberg wrote: I will do the weld bead tomorrow and hopefully it will come out without too much trouble. It's a counsel of perfection, I guess, at this stage, but I would use a puller fitted with very thin lips at right angles to the legs. These are designed to remove bearings from blind holes in car engines or gearboxes. The little lips are hardened and when you tighten the puller it squeezes the lips in behind the bearing, by wedging it into the radius in the outer casing of the bearing (the bit you have stuck in there at the moment). A GOOD QUALITY puller works well, and can get enough grip to ease the bearing off the bottom of the hole and get it out. I have done this once or twice and it is a good solution. My friend has a selection of good pullers for all sorts of awkward jobs like this. At this stage, unless you know someone with a puller like this, welding is probably your only other option. Marcus On 2014-11-27 19:30, Ed wrote: On 11/27/2014 10:52 AM, Marius Liebenberg wrote: So a little bigger tap with a little bigger mallet did the job. The front bearing fell apart and is badly worn. Now the seat is stuck inside the headstock To take out a bearing cup I use an arc welder and run a bead of weld around the inside of the cup, let it cool down, extract with fingers or tap the housing with your mallet. It can be done by heating with an oxy-acet torch but you must be fast in, fast heat and fast out. Arc works MUCH better. and the bearing piece is stuck to the shaft and I have no idea how to get it out. The bearing race on the shaft is probably best removed by carefully grinding through the race in a couple of spots and cracking it with a chisel. Ed. -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/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 +27 82 698 3251 +27 12 743 6064 QQ 1767394877 -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server
Re: [Emc-users] Coolant filtering
On 28 November 2014 at 10:41, Viesturs Lācis viesturs.la...@gmail.com wrote: Can anyone suggest some cheap alternatives? AFAIK some use fish tank pumps, but something that would be able to handle 7 m long tube will cost more than 50 eur, so I am willing to do some experiments. At 3x the price of the fish-tank pump you can have an actual coolant system: http://www.rdgtools.co.uk/cgi-bin/sh01.pl?WD=coolantPN=VERTEX-COOLANT-PUMP-SET---24O-VOLTS---1647%2ehtml#SID=314 http://www.arceurotrade.co.uk/Catalogue/Machines-Accessories/Lathe-Accessories/Coolant-Accessories#16-Litre-Coolant-System-090-080-00090 -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Coolant filtering
On 11/28/2014 6:48 AM, andy pugh wrote: http://www.arceurotrade.co.uk/Catalogue/Machines-Accessories/Lathe-Accessories/Coolant-Accessories#16-Litre-Coolant-System-090-080-00090 That's the exact same pump and tank that I have on my band saw... different color and label. JT -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Coolant filtering
2014-11-28 14:55 GMT+02:00 John Thornton bjt...@gmail.com: On 11/28/2014 6:48 AM, andy pugh wrote: http://www.arceurotrade.co.uk/Catalogue/Machines-Accessories/Lathe-Accessories/Coolant-Accessories#16-Litre-Coolant-System-090-080-00090 That's the exact same pump and tank that I have on my band saw... different color and label. Andy, thank you for the link! I was thinking about getting a kit like that, because overall cost of my experiments might exceed pricetag of such device. The problem was that I couldn't find any. John, what is your opinion about it? Do I need to add some filters on return hose? Viesturs -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Coolant filtering
Be careful with filters, especially on return lines. If a filter on the pressure side starts to clog you just loose coolant flow which doesn't hurt the pump, but if it's in a return line you may find coolant overflowing from your machine. --Original Mail-- From: Viesturs LÄcis viesturs.la...@gmail.com To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Fri, 28 Nov 2014 15:28:33 +0200 Subject: Re: [Emc-users] Coolant filtering 2014-11-28 14:55 GMT+02:00 John Thornton bjt...@gmail.com: On 11/28/2014 6:48 AM, andy pugh wrote: http://www.arceurotrade.co.uk/Catalogue/Machines-Accessories/Lathe-Accessories/Coolant-Accessories#16-Litre-Coolant-System-090-080-00090 That's the exact same pump and tank that I have on my band saw... different color and label. Andy, thank you for the link! I was thinking about getting a kit like that, because overall cost of my experiments might exceed pricetag of such device. The problem was that I couldn't find any. John, what is your opinion about it? Do I need to add some filters on return hose? Viesturs -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Mux_generic
Andy et al, Is mux_generic in the current binaries? I am getting can't find module. Thanks, Eric Sent from Samsung Mobile -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Coolant filtering
2014-11-28 15:42 GMT+02:00 p...@wpnet.us: Be careful with filters, especially on return lines. If a filter on the pressure side starts to clog you just loose coolant flow which doesn't hurt the pump, but if it's in a return line you may find coolant overflowing from your machine. Yeah, I already had this lesson earlier this morning :) Viesturs -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mux_generic
On 11/28/2014 06:47 AM, Eric H. Johnson wrote: Andy et al, Is mux_generic in the current binaries? I am getting can't find module. It's in 2.6.0 and later. -- Sebastian Kuzminsky -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Lathe spindle bearing problems
On 11/28/2014 03:38 AM, Marius Liebenberg wrote: Hi Robert Thanks for the grease tip. I would have fitted normal wheel bearing grease. I will see if I can find what you suggested over here or at least something similar. In my opinion, grease should not be a first choice. Oil can lubricate just as well or better, and carries away heat and dirt. Grease holds heat and dirt requiring the bearing to be beefed up to compensate for the increased heat and wear. Timken, Torrington, Fafnir, whatever, used to have a very good design guide online, with a section for machine tool applications. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Lathe spindle bearing problems
On 28 November 2014 at 15:50, Kirk Wallace kwall...@wallacecompany.com wrote: In my opinion, grease should not be a first choice. Oil can lubricate just as well or better, and carries away heat and dirt Oil will fall out. These bearings are mounted in the faces of an open-fronted box, and there are no seals as such either. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Lathe spindle bearing problems
On 11/28/2014 07:59 AM, andy pugh wrote: On 28 November 2014 at 15:50, Kirk Wallace kwall...@wallacecompany.com wrote: In my opinion, grease should not be a first choice. Oil can lubricate just as well or better, and carries away heat and dirt Oil will fall out. These bearings are mounted in the faces of an open-fronted box, and there are no seals as such either. Sounds like a faulty design to me. I found the links I was thinking about earlier: http://timken.com/en-us/products/Documents/Super-Precision-Bearings-for-Machine-Tool-Applications-Catalog.pdf http://timken.com/en-us/products/Documents/Timken-Engineering-Manual.pdf http://timken.com/en-us/products/Pages/Catalogs.aspx -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Lathe spindle bearing problems
On 28 Nov 2014, at 16:09, Kirk Wallace kwall...@wallacecompany.com wrote: Sounds like a faulty design to me. Without a doubt, which is why the bearings failed. -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Notes on PWM and FETs
Here is the start of my notes on playing with PWM and FETS. http://www.wallacecompany.com/machine_shop/LinuxCNC/pwm_fet/pwm_fet.html -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Coolant filtering
On 11/28/2014 04:41 AM, Viesturs Lācis wrote: Now it seems that windshield washing fluid pump is not happy about running more than 20 minutes nonstop - it is overheating. Can anyone suggest some cheap alternatives? AFAIK some use fish tank pumps, but something that would be able to handle 7 m long tube will cost more than 50 eur, so I am willing to do some experiments. I use a Little Giant condensate return pump. It is designed to collect condensed moisture from air conditioners and condensing furnaces and pump it up to a drain. I bought the pump decades ago on eBay. I just have the bare pump unit, in my own sump, not the complete boxed-up system with float switch and etc. See http://www.ebay.com/itm/LITTLE-GIANT-CP1-115-Pump-Coolant-Plastic-/381014562435?pt=BI_Pumpshash=item58b63cd683 for something that looks a bit like the one I use. The motor just sits above the fluid and is driven by a vertical shaft. This has no seals and is not hermetically sealed, so really easy to clean the pump section. Jon -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Coolant filtering
On 11/28/2014 11:31 AM, Jon Elson wrote: On 11/28/2014 04:41 AM, Viesturs Lācis wrote: Now it seems that windshield washing fluid pump is not happy about running more than 20 minutes nonstop - it is overheating. Can anyone suggest some cheap alternatives? AFAIK some use fish tank pumps, but something that would be able to handle 7 m long tube will cost more than 50 eur, so I am willing to do some experiments. I use a Little Giant condensate return pump. It is designed to collect condensed moisture from air conditioners and condensing furnaces and pump it up to a drain. I bought the pump decades ago on eBay. I just have the bare pump unit, in my own sump, not the complete boxed-up system with float switch and etc. See http://www.ebay.com/itm/LITTLE-GIANT-CP1-115-Pump-Coolant-Plastic-/381014562435?pt=BI_Pumpshash=item58b63cd683 for something that looks a bit like the one I use. The motor just sits above the fluid and is driven by a vertical shaft. This has no seals and is not hermetically sealed, so really easy to clean the pump section. Jon -- Little giants can be rebuilt cuz you can get all the parts and they have diff models impervious to diff fluids good resource to know abolut I use 'em as aux flush devices in EDM so parafinics are fine too tomp tjtr33 -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Notes on PWM and FETs
May I make a suggestion? Use an optocoupler that is designed to drive MOSFET/IGBT gates. The Avago HCPL3150 is an industry standard, I've used them many times: http://www.digikey.com/product-detail/en/HCPL-3150-500E/516-1584-1-ND/768375 or the very similar but cheaper VO3150 from Vishay: http://www.digikey.com/product-detail/en/VO3150A/VO3150A-ND/2096253 The opto-coupler/resistor arrangement you have works only for the smallest power devices, and only at relatively low voltages, currents, and switching speeds. FETs have significant gate to source capacitance, and if the driver doesn't charge or discharge that capacitance quickly, the result is very slow switching and a lot of switching loss due to the fact that the device spends a lot of time in an intermediate state between fully on and fully off. The devices also have a lot of gate to drain capacitance, which couples the large drain voltage back to the gate (Miller effect). That slows switching down even more, and under the wrong circumstances can lead to oscillation. The second set of scope waveforms is rather scary. The turn-off transition is not clean - the device switches on and off many times. At 40V and a few amps you can get away with it for a while. At higher power that could be instant death for the FET. Gate-driver optos have two major advantages. 1) They can source and sink much higher currents than the resistor arrangement. The 3150 drives up to a half amp into and out of the gate. (The slightly more expensive 3120 drives two amps.) This means much faster turn on and turn off. You control the actual speed by adding a single resistor between the driver and the gate. Unlike the pull-down resistor in the original circuit, there are no trade-offs dictating the resistor value. If you want slow switching, you can choose to use hundreds of ohms. If you want fast switching, you can go as low as twenty ohms or so (less than 10 ohms with the 3120). The ideal resistor depends on the size of the power device - bigger FETs need lower resistors. For the large (1700V, 450A) IGBTs I use at work the gate resistor is only a couple ohms - we have a booster stage that allows up to 10 amps of gate current. But a simple 3150 with a single resistor is typically all you need for 1200V IGBTs up to 50A or more. 2) They have undervoltage lockout. FETs and IGBTs don't like to be turned on half-way. What happens if your 15V power supply comes up slower or goes down faster than your 40V motor power supply? On a large drive where the motor supply is rectified line voltage, attempting to turn on the device when the control supply is too low results in an instant explosion. Gate-drive optos won't turn on until the supply on the isolated side is above a threshold. (See data sheet for exact value.) I've been designing motor drives for 20+ years. I can design a driver using discrete parts and conventional opto-couplers. But I haven't done that in years. The gate- drive optos do it at least as well as I can, in a fraction of the time and at a fraction of the cost. They let you ignore the nitty-gritty details of gate drive and move on to more interesting things. On Fri, Nov 28, 2014, at 12:29 PM, Kirk Wallace wrote: Here is the start of my notes on playing with PWM and FETS. http://www.wallacecompany.com/machine_shop/LinuxCNC/pwm_fet/pwm_fet.html -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- John Kasunich jmkasun...@fastmail.fm -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Notes on PWM and FETs
On 11/28/2014 10:17 AM, John Kasunich wrote: May I make a suggestion? I post my work in order to get feedback. Thank you very much for your help. My next step, which I have yet to post, added a TC4422 after the opto-isolator. That is what is in the next scope picture. The FET ran with barely a hint of heating while under a load (one hand on the FET the other trying to stall the motor, not recommended, do _not_ do as I do, folks). The HCPL3150 looks like it combines the bits I have. I'll have to get some on order. The circuit only drives the motor in one direction and has no speed regulation, so isn't all that useful, but fun so far. I would like to work more on sensorless speed regulation, but my KBIC board already does this very well, and now that I'm not blowing out FETs anymore, I'd like to move on to BLDC motors. One nice thing about this setup is that someone with a decent electronic parts bin can touch some important bits of LinuxCNC in short order. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Notes on PWM and FETs
2014-11-28 19:56 GMT+01:00 Kirk Wallace kwall...@wallacecompany.com: On 11/28/2014 10:17 AM, John Kasunich wrote: May I make a suggestion? I post my work in order to get feedback. Thank you very much for your help. My next step, which I have yet to post, added a TC4422 after the opto-isolator. That is what is in the next scope picture. The FET ran with barely a hint of heating while under a load (one hand on the FET the other trying to stall the motor, not recommended, do _not_ do as I do, folks). The HCPL3150 looks like it combines the bits I have. I'll have to get some on order. Would it work better with an IRZL44N? It's popular in the Arduino community for its logic level input. http://www.edaboard.com/thread245565.html http://forum.arduino.cc/index.php?topic=11565.0 I use it in a home made engine ECU to PWM a fuel gate and it works very well. /S -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Lathe spindle bearing problems
On 2014-11-28 18:27, Andy Pugh wrote: On 28 Nov 2014, at 16:09, Kirk Wallace kwall...@wallacecompany.com wrote: Sounds like a faulty design to me. Without a doubt, which is why the bearings failed. And the fact that there was absolutely no form of lubrication on them to start with and the hardening of the bearings are very suspect. I had hardly cut anything with the lathe and the front bearing rollers were worn concave. -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/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 +27 82 698 3251 +27 12 743 6064 QQ 1767394877 -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] conv_s32_u32.0--??
hi i did fix most of problem but one new how up here is my code # # loadrt mux_generic config=bb7 loadrt conv_s32_u32 addf conv-s32-u32.0 servo-thread addf mux-gen.00 servo-thread setp hm2_5i20.0.gpio.040.is.output true setp hm2_5i20.0.gpio.040.invert_output true net mode-signed motion.motion-type = conv-s32-u32.0.in net mode-unsigned conv-s32-u32.out = mux-gen.00.sel-int net mode-out mux-gen.00.out = hm2_5i20.0.gpio.040.out setp mux-gen.00.in-bit-01 0 ## rapid feed setp mux-gen.00.in-bit-02 1 ## straight feed setp mux-gen.00.in-bit-03 1 ## arc feed setp mux-gen.00.in-bit-04 0 ## toolchange setp mux-gen.00.in-bit-05 0 ## probing setp mux-gen.00.in-bit-06 0 ## index rotary ### and error is Debug file information: . hm2-servo.hal:243: parameter or pin 'hm2_5i20.0.gpio.040.is.output' not found 5118 PID TTY STAT TIME COMMAND Thank you aram On Sat, Nov 22, 2014 at 12:53 PM, Peter C. Wallace p...@mesanet.com wrote: This works (I was wrong about the manual. it is correct) loadrt conv_s32_u32 addf conv-s32-u32.0 servo-thread available pins: conv-s32-u32.0.in conv-s32-u32.0.out conv-s32-u32.0.out-of-range available parameters: conv-s32-u32.0.clamp conv-s32-u32.0.time conv-s32-u32.0.tmax conv-s32-u32.0.tmax-increased Note that all names except the component name in the loadrt line use hyphens only the nam ein the loadrt line uses underlines Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your ()_() signature to help him gain world domination. -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] conv_s32_u32.0--??
On Fri, 28 Nov 2014, a k wrote: Date: Fri, 28 Nov 2014 16:42:34 -0800 From: a k pccncmach...@gmail.com Reply-To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Subject: Re: [Emc-users] conv_s32_u32.0--?? hi i did fix most of problem but one new how up here is my code # # loadrt mux_generic config=bb7 loadrt conv_s32_u32 addf conv-s32-u32.0 servo-thread addf mux-gen.00 servo-thread setp hm2_5i20.0.gpio.040.is.output true setp hm2_5i20.0.gpio.040.invert_output true net mode-signed motion.motion-type = conv-s32-u32.0.in net mode-unsigned conv-s32-u32.out = mux-gen.00.sel-int net mode-out mux-gen.00.out = hm2_5i20.0.gpio.040.out setp mux-gen.00.in-bit-01 0 ## rapid feed setp mux-gen.00.in-bit-02 1 ## straight feed setp mux-gen.00.in-bit-03 1 ## arc feed setp mux-gen.00.in-bit-04 0 ## toolchange setp mux-gen.00.in-bit-05 0 ## probing setp mux-gen.00.in-bit-06 0 ## index rotary ### and error is Debug file information: . hm2-servo.hal:243: parameter or pin 'hm2_5i20.0.gpio.040.is.output' not found the parameter name is hm2_5i20.0.gpio.040.is_output typing man hostmot2 in a terminal window will display the manual page for the hostmot2 driver if you scroll down to the General Purpose I/O section the is-output parameter is explained another option is to look at the hm2 sample files for proper pin and parameter names 5118 PID TTY STAT TIME COMMAND Thank you aram On Sat, Nov 22, 2014 at 12:53 PM, Peter C. Wallace p...@mesanet.com wrote: This works (I was wrong about the manual. it is correct) loadrt conv_s32_u32 addf conv-s32-u32.0 servo-thread available pins: conv-s32-u32.0.in conv-s32-u32.0.out conv-s32-u32.0.out-of-range available parameters: conv-s32-u32.0.clamp conv-s32-u32.0.time conv-s32-u32.0.tmax conv-s32-u32.0.tmax-increased Note that all names except the component name in the loadrt line use hyphens only the nam ein the loadrt line uses underlines Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your ()_() signature to help him gain world domination. -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your ()_() signature to help him gain world domination. -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Lathe spindle bearing problems
The bearings should have about a 20% fill. Don't fill the bearings full. On Nov 28, 2014 3:34 PM, Marius Liebenberg mar...@mastercut.co.za wrote: On 2014-11-28 18:27, Andy Pugh wrote: On 28 Nov 2014, at 16:09, Kirk Wallace kwall...@wallacecompany.com wrote: Sounds like a faulty design to me. Without a doubt, which is why the bearings failed. And the fact that there was absolutely no form of lubrication on them to start with and the hardening of the bearings are very suspect. I had hardly cut anything with the lathe and the front bearing rollers were worn concave. -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/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 +27 82 698 3251 +27 12 743 6064 QQ 1767394877 -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Notes on PWM and FETs
On 11/28/2014 09:29 AM, Kirk Wallace wrote: Here is the start of my notes on playing with PWM and FETS. http://www.wallacecompany.com/machine_shop/LinuxCNC/pwm_fet/pwm_fet.html I posted my second circuit at the link above. JK, I used your comment about using the gate resistor to adjust the gate speed. A small spike can be seen on the rising edge of the gate voltage, so I replaced the 22 Ohm resistor with a 68 Ohm and the rising edge now has a nice square corner. On the current sense trace, there seems to be a spike and ringing decay at the on and off events. The gain on that channel is turned up pretty high so I don't think the spike is large, but I could be wrong. The ramp will rise up just out of view at about 5 Amps average on the motor supply meter. I have to use a rag on the pulley when I try to load the motor and I can only slow it down a bit. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Notes on PWM and FETs
On 11/28/2014 12:15 PM, Sven Wesley wrote: ... snip Would it work better with an IRZL44N? It's popular in the Arduino community for its logic level input. http://www.edaboard.com/thread245565.html http://forum.arduino.cc/index.php?topic=11565.0 I use it in a home made engine ECU to PWM a fuel gate and it works very well. The IRLZ34 is what I had in by parts box. In looking at the specs, both parts look similar. I did try using a 5 Volt signal from the parallel port pin to a series resistor to the gate, and it worked fine. It just ran warmer than the other methods I tried. I'm hoping to try running the motor at full voltage, 90 Volts, but I'll need to order new FETS and diodes for that. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Lathe spindle bearing problems
On Friday 28 November 2014 16:31:58 Marius Liebenberg did opine And Gene did reply: On 2014-11-28 18:27, Andy Pugh wrote: On 28 Nov 2014, at 16:09, Kirk Wallace kwall...@wallacecompany.com wrote: Sounds like a faulty design to me. Without a doubt, which is why the bearings failed. And the fact that there was absolutely no form of lubrication on them to start with and the hardening of the bearings are very suspect. I had hardly cut anything with the lathe and the front bearing rollers were worn concave. I am assuming this is the same lathe Grizzly sells as its variable speed 10x22? No wonder its such an inviting price. It even threw up a couple red flags so the card didn't get scanned and the shipping box never made it into my pickup the last time I visited the store at the Lycoming Mall in PA on my way by. When we go up to Dee's nieces dairy farm to kill a few days, we only miss it about 30 miles as we go thru Westernport, home of the little league world series each year. Cheers, Gene Heskett -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Genes Web page http://geneslinuxbox.net:6309/gene US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] conv_s32_u32.0--??
On Friday 28 November 2014 19:42:34 a k did opine And Gene did reply: hi i did fix most of problem but one new how up here is my code # # loadrt mux_generic config=bb7 loadrt conv_s32_u32 addf conv-s32-u32.0 servo-thread addf mux-gen.00 servo-thread setp hm2_5i20.0.gpio.040.is.output true setp hm2_5i20.0.gpio.040.invert_output true net mode-signed motion.motion-type = conv-s32-u32.0.in net mode-unsigned conv-s32-u32.out = mux-gen.00.sel-int net mode-out mux-gen.00.out = hm2_5i20.0.gpio.040.out setp mux-gen.00.in-bit-01 0 ## rapid feed setp mux-gen.00.in-bit-02 1 ## straight feed setp mux-gen.00.in-bit-03 1 ## arc feed setp mux-gen.00.in-bit-04 0 ## toolchange setp mux-gen.00.in-bit-05 0 ## probing setp mux-gen.00.in-bit-06 0 ## index rotary ### and error is Debug file information: . hm2-servo.hal:243: parameter or pin 'hm2_5i20.0.gpio.040.is.output' not found That is because it is not is.output, its is_output. Bit me too. :( Cheers, Gene Heskett -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Genes Web page http://geneslinuxbox.net:6309/gene US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
