[Emc-users] Old Nashes and machining transmission parts. Re: Semi OT: Rotary encoder Z pulse alternatives
I am sure we've both seen some pretty square camshafts but everytime I think about the roller tappet stuff, I recall the cam and tappets in the Nash Ambassador big 6 engine used from '49 to the end of Nash. and despite the single barreled carb and that covered ditch in the head casting capable of being uncovered and suitably polished, My folks had a 1952 Golden Anniversary edition Nash Ambassador with the special metallic gold and dark red paint. The single side draft carb was a PITA. If the car was parked anywhere with any tilt toward the left, it was very hard to start because the gasoline would run out of the carb instead of into the intake. I'd like to take one of those engines, CNC mill out the intake channel, just enough to smooth it. Polish the ports too. Then mill a new cover plate with injector bungs and convert the carb to a dry throttle body. No more problems with fuel going the wrong way before it fires up. Was there ever a dual carb version of the big overhead valve Nash straight 6? Those engines are insanely heavy, much more massive than any common American 1960's and later V8. Much of the fuel efficiency came from the optional overdrive on the manual 3-speed transmission. There's a thing I'd like to figure out how to rebuild, the planet gear carrier in that Borg Warner overdrive. Either the needle bearings wear or the gear bores do. Things get sloppy and pressure on the gears increases. That causes heating, making the ring gear expand until it seizes in the overdrive housing. *BANG* Car comes to a quick halt! The problem with fixing those is the pins the planet gears spin on are welded into the carrier, then an oil pickup/distribution ring is crimped on. That's there to use centrifugal force to push gear oil into the planet gear needle bearings. Of course the welds are under that crimped on ring. The ring would pretty much have to be destroyed to get it off so the welds could be milled through. Sooo, design and machine new dies to stamp new oil rings, and more dies to crim the new rings on. Also design and build a fixture to hold the planet carrier to mill out the welds on the pins. Then there's the wear problems. If the gears and pins are OK, drop in new pins of stock diameter. If the pins are worn, replace with new ones hard enough for high pressure roller bearing use. If the gear bores are worn, grind or hone straight and concentric to a suitable diameter for use with a larger stock diameter of needle bearing rollers. Then there's accommodating all the slightly different output shafts and other variances the various vehicle manufacturers had Borg Warner make on that part. There would be good money in it for someone who can do all that to rebuild those overdrive planet gears. Nobody is making any more new ones. I'm not going to do it, I don't have a need for a rebuilt one. When my folks' Nash overdrive did that we happened to have a Nash transmission someone had attempted to rebuild (probably back in the 60's) but couldn't get put back together. In the box of parts was a brand new planet gear assembly. Swapped that into the 52 and it was a new overdrive. That failed transmission rebuild yielded up another useful part when I was fixing a transmission in a 1984 Ford 1/2 ton pickup. It needed a brass syncro ring and the old 1950's syncro rings were the exact same part. Instead of a week waiting on a new part, I had it done in a couple of days. --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com -- 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] Semi OT: Rotary encoder Z pulse alternatives
On 11/26/2014 12:10 AM, Gene Heskett wrote: Is GM's patent on hydraulic roller tappets still in force? They were royalty hungry yet in the late 40's clear into the 70's with that, first designed and used in the 35 V16 engines they made for the biggest Caddies from 35 to 37. Except for its poured rod bearings, that engine could be made up nearly 300 horses from its original 165, then 185, by swapping the rods out for inserted versions, swapping the oil pumps plumbing around to feed a drilled crankshaft, giving it excellent longevity, and swapping the intake manifolds from side to side, which put the carb flanges upright replace the OEM updraft Marvel-Shebler carbs with a pair of bolt them on, Stromberg 48's, the 94's big brother. Sounds a bit like what Jay Leno had done to the big engine in his Blastolene Special. The Continental AV1790-5B M47 Patton tank engine originally produced around 800 horsepower and in the car got around 2~3 MPG. After Leno had the Greyhound bus transmission replaced with a six speed Allison automatic (used in semi tractors), installed fuel injection and twin turbochargers, it doubled the horsepower to 1600 and gained 100% MPG increase to 5 MPG. http://uncommonengineering.com/ Crazy things done to flathead Ford and Hudson straight 6 engines by a person who used to build engines for Indy cars. Imagine a 308 Hudson with added webs in the block for a custom 7 bearing crankshaft, EFI and a 6-71 supercharger. ;-) He's also revived the ARDUN overhead valve heads for Ford flathead V8s and that totally insane flathead intake that mounts TWO superchargers. Probably best to use that on the somewhat stronger Mercury version of the flatty. Then there's his custom heads and camshaft that changes the in block intake valves to exhausts (for 16 exhaust valves) and has one huge, centrally located intake valve per cylinder. It takes no imagination at all to assume that nothing this guy builds is in any way inexpensive. --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com -- 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] VFD trouble
Viesturs 2014-11-26 5:06 GMT+02:00 Jon Elson el...@pico-systems.com: It is probably getting stuck at low speed due to high current. The larger VFD may have a lower PWM frequency, which is causing the peak winding current to exceed the current limit. it suppresses frequency increase, waiting for the motor to catch up and current to go down, which never happens. So, it gets stuck. Sounds like the inductors may be required. I checked VFD - it is running in V/F mode. I reduced max current to 3A, attached that fast spindle, tried, but it did not go higher than 8 hz. I did not change any settings, when attached normal 0,55 kW motor and it worked just fine. Jon, could you, please, share some link for such kind of inductor? I am looking at website of local seller of electronics stuff, I do not see any inductors with 9A rated current and anything above 22 uH inductivity. 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] Semi OT: Rotary encoder Z pulse alternatives
On Tue, Nov 25, 2014 at 10:17 PM, Leonardo Marsaglia leonardomarsagli...@gmail.com wrote: As always I like how you describe things like this :). I'm really out of my field wich such a monster like that, but I can imagine that phenomenal gas mileage back then is almost against the law by today standars. I recall talking to somebody a while ago when I was researching about induction heating for camshafts, and the reason most engines are going from flat tappets to roller tappets is because zinc was no more a legal component in motor oils and to avoid premature wear the only reason is to use a system with less friction. I don't remember but the person I talked to may be from this list. Anyway, I remember that because the person told me that there are lot of old monster like the one you mentioned that needed camshaft rebuild because the newer oils are far worse for systems without rollers. -- *Leonardo Marsaglia*. You can also more finely tune a cam with roller lifters as there's a different contact area with roller lifters than flat ones. I've seen some pretty radical cam configurations for circle track racing that would be next to impossible to use with flat lifters. Generally you can get higher rpms out of roller lifters too, since you typically don't get as much valve float with rollers versus flat. Way back when, I built a small block Chebby (started out life as a 350 ci with 4-bolt mains). First step was to bore it out 90 over. We then did all the usual nifty stuff (blueprinting, etc), We used Carillo rods, got some 13.5:1 pistons, aluminum high velocity heads, that were flowed and smoothed, a very good low-midrange grunt circle track cam, and topped it off with a Holley 750 double-pumper. Dyno testing of the engine showed it put out over 800 HP. Dropped that into my 1969 Z28. H, what a ride! ;-) -- 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] VFD trouble
Are you trying to run 2 motors wired in parallel to one VFD? I dont think that will work. Their rotors will never be in phase so any feedback generated is going to be really strange to the VFD. ron ginger On 11/25/2014 10:30 PM, emc-users-requ...@lists.sourceforge.net wrote: I need to drive 2 high-speed spindle motors, 3,7 kW each. For that I have 11 kW VFD. -- 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] VFD trouble
2014-11-26 14:38 GMT+02:00 Ron Ginger rongin...@roadrunner.com: Are you trying to run 2 motors wired in parallel to one VFD? I dont think that will work. Their rotors will never be in phase so any feedback generated is going to be really strange to the VFD. Yes. Is there a way to run them in series? Currently I am trying to get one motor to work - still the same issue of VFD not going higher than 8-9 hz. I like Jon's suggestion about additional inductors, I just have not yet found anything appropriate (1mH, 9A). -- 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] VFD trouble
Hi Viesturs . Could you please specify the motor data and the VFD data (manufacturers + material code) ? I never seen any VFD to control 2 motors in series connection . The high speed motors are equivalent to asincronous or they are not ? A standard VFD (V/F or sensor less vector) can control this kind of motors ? Maybe you have to tweak some parameters into the VFD (such as electrical motor data) to best fit the electrical motor characteristics . Alex On Wed, Nov 26, 2014 at 1:59 PM, Viesturs Lācis viesturs.la...@gmail.com wrote: 2014-11-26 14:38 GMT+02:00 Ron Ginger rongin...@roadrunner.com: Are you trying to run 2 motors wired in parallel to one VFD? I dont think that will work. Their rotors will never be in phase so any feedback generated is going to be really strange to the VFD. Yes. Is there a way to run them in series? Currently I am trying to get one motor to work - still the same issue of VFD not going higher than 8-9 hz. I like Jon's suggestion about additional inductors, I just have not yet found anything appropriate (1mH, 9A). -- 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] VFD trouble
2014-11-26 15:54 GMT+02:00 alex chiosso achio...@gmail.com: Hi Viesturs . Could you please specify the motor data and the VFD data (manufacturers + material code) ? I never seen any VFD to control 2 motors in series connection . The high speed motors are equivalent to asincronous or they are not ? A standard VFD (V/F or sensor less vector) can control this kind of motors ? Maybe you have to tweak some parameters into the VFD (such as electrical motor data) to best fit the electrical motor characteristics . Spindle motors: Elte TMPE4 14/2, 12000 RPM, 3,7 kW http://www.eltesrl.com/index.php?option=com_contentview=articleid=26Itemid=48lang=en VFD: Teco E510-415-H3F https://www.inverterdrive.com/file/Teco-E510-Manual-EN-v2 Yes, these motors are asynchronous motors. I tried tweaking VFD parameters, but without any luck. The same settings work for normal 0,55 kW motor, those spindles work fine with 2kW VFD I have on my router, but together the large VFD and those spindles (even when one spindle is attached at a time) do not work. I will try to find some inductors to try Jon's suggestion. I would appreciate any help in finding them (seller within EU is preferred). 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] VFD trouble
The VFD manufacturers have white papers specifically covering driving multiple motors from one larger VFD so it's absolutely a supported configuration. You need separate overcurrent protection for each connected motor though since the VFD's OCP can't work to protect an individual motor in such a configuration. --Original Mail-- From: Ron Ginger rongin...@roadrunner.com To: emc-users@lists.sourceforge.net Sent: Wed, 26 Nov 2014 07:38:27 -0500 Subject: Re: [Emc-users] VFD trouble Are you trying to run 2 motors wired in parallel to one VFD? I dont think that will work. Their rotors will never be in phase so any feedback generated is going to be really strange to the VFD. ron ginger On 11/25/2014 10:30 PM, emc-users-requ...@lists.sourceforge.net wrote: I need to drive 2 high-speed spindle motors, 3,7 kW each. For that I have 11 kW VFD. -- 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] VFD trouble
Hi Viesturs. How did you connect the motor phases (on the motor terminal blocks) star or triangle ? The motor seems to be a 2 poles (12000rpm at 200Hz) and the phase voltage is 220VAC so you should connect the motor phases to star type isn't it ? Are you driving the speed reference with an analog input or via a digital input o via the VFD keypad ? Are you sure that you're giving the right reference value to the VFD ? Alex On Wed, Nov 26, 2014 at 4:19 PM, p...@wpnet.us wrote: The VFD manufacturers have white papers specifically covering driving multiple motors from one larger VFD so it's absolutely a supported configuration. You need separate overcurrent protection for each connected motor though since the VFD's OCP can't work to protect an individual motor in such a configuration. --Original Mail-- From: Ron Ginger rongin...@roadrunner.com To: emc-users@lists.sourceforge.net Sent: Wed, 26 Nov 2014 07:38:27 -0500 Subject: Re: [Emc-users] VFD trouble Are you trying to run 2 motors wired in parallel to one VFD? I dont think that will work. Their rotors will never be in phase so any feedback generated is going to be really strange to the VFD. ron ginger On 11/25/2014 10:30 PM, emc-users-requ...@lists.sourceforge.net wrote: I need to drive 2 high-speed spindle motors, 3,7 kW each. For that I have 11 kW VFD. -- 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 -- 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] VFD trouble
This VFD has also a Auto tune function , did you tried it ? Alex On Wed, Nov 26, 2014 at 4:34 PM, alex chiosso achio...@gmail.com wrote: Hi Viesturs. How did you connect the motor phases (on the motor terminal blocks) star or triangle ? The motor seems to be a 2 poles (12000rpm at 200Hz) and the phase voltage is 220VAC so you should connect the motor phases to star type isn't it ? Are you driving the speed reference with an analog input or via a digital input o via the VFD keypad ? Are you sure that you're giving the right reference value to the VFD ? Alex On Wed, Nov 26, 2014 at 4:19 PM, p...@wpnet.us wrote: The VFD manufacturers have white papers specifically covering driving multiple motors from one larger VFD so it's absolutely a supported configuration. You need separate overcurrent protection for each connected motor though since the VFD's OCP can't work to protect an individual motor in such a configuration. --Original Mail-- From: Ron Ginger rongin...@roadrunner.com To: emc-users@lists.sourceforge.net Sent: Wed, 26 Nov 2014 07:38:27 -0500 Subject: Re: [Emc-users] VFD trouble Are you trying to run 2 motors wired in parallel to one VFD? I dont think that will work. Their rotors will never be in phase so any feedback generated is going to be really strange to the VFD. ron ginger On 11/25/2014 10:30 PM, emc-users-requ...@lists.sourceforge.net wrote: I need to drive 2 high-speed spindle motors, 3,7 kW each. For that I have 11 kW VFD. -- 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 -- 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] Old Nashes and machining transmission parts. Re: Semi OT: Rotary encoder Z pulse alternatives
Hmmm. Guess the Brits did something right. ;-) The SU's on my pregnant rollerskate, eg Volvo 544/B16 didn't have that problem. Once in a while tho the gas in the bowl would boil. Probably said my timing was off. The B18 engine in the 122S was much better. Can't believe how large some of those older engines were. A friend of mine had something like a 456 in^3 in-line 6 Studebaker block sitting in his driveway; absolutely massive. Dave On 11/26/2014 12:55 AM, Gregg Eshelman wrote: I am sure we've both seen some pretty square camshafts but everytime I think about the roller tappet stuff, I recall the cam and tappets in the Nash Ambassador big 6 engine used from '49 to the end of Nash. and despite the single barreled carb and that covered ditch in the head casting capable of being uncovered and suitably polished, My folks had a 1952 Golden Anniversary edition Nash Ambassador with the special metallic gold and dark red paint. The single side draft carb was a PITA. If the car was parked anywhere with any tilt toward the left, it was very hard to start because the gasoline would run out of the carb instead of into the intake. I'd like to take one of those engines, CNC mill out the intake channel, just enough to smooth it. Polish the ports too. Then mill a new cover plate with injector bungs and convert the carb to a dry throttle body. No more problems with fuel going the wrong way before it fires up. Was there ever a dual carb version of the big overhead valve Nash straight 6? Those engines are insanely heavy, much more massive than any common American 1960's and later V8. Much of the fuel efficiency came from the optional overdrive on the manual 3-speed transmission. There's a thing I'd like to figure out how to rebuild, the planet gear carrier in that Borg Warner overdrive. Either the needle bearings wear or the gear bores do. Things get sloppy and pressure on the gears increases. That causes heating, making the ring gear expand until it seizes in the overdrive housing. *BANG* Car comes to a quick halt! The problem with fixing those is the pins the planet gears spin on are welded into the carrier, then an oil pickup/distribution ring is crimped on. That's there to use centrifugal force to push gear oil into the planet gear needle bearings. Of course the welds are under that crimped on ring. The ring would pretty much have to be destroyed to get it off so the welds could be milled through. Sooo, design and machine new dies to stamp new oil rings, and more dies to crim the new rings on. Also design and build a fixture to hold the planet carrier to mill out the welds on the pins. Then there's the wear problems. If the gears and pins are OK, drop in new pins of stock diameter. If the pins are worn, replace with new ones hard enough for high pressure roller bearing use. If the gear bores are worn, grind or hone straight and concentric to a suitable diameter for use with a larger stock diameter of needle bearing rollers. Then there's accommodating all the slightly different output shafts and other variances the various vehicle manufacturers had Borg Warner make on that part. There would be good money in it for someone who can do all that to rebuild those overdrive planet gears. Nobody is making any more new ones. I'm not going to do it, I don't have a need for a rebuilt one. When my folks' Nash overdrive did that we happened to have a Nash transmission someone had attempted to rebuild (probably back in the 60's) but couldn't get put back together. In the box of parts was a brand new planet gear assembly. Swapped that into the 52 and it was a new overdrive. That failed transmission rebuild yielded up another useful part when I was fixing a transmission in a 1984 Ford 1/2 ton pickup. It needed a brass syncro ring and the old 1950's syncro rings were the exact same part. Instead of a week waiting on a new part, I had it done in a couple of days. --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com -- 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
Re: [Emc-users] Old Nashes and machining transmission parts. Re: Semi OT: Rotary encoder Z pulse alternatives
On 26 November 2014 at 15:53, dave dengv...@charter.net wrote: Can't believe how large some of those older engines were. A friend of mine had something like a 456 in^3 in-line 6 Studebaker block sitting in his driveway; absolutely massive. I regularly drive a 9.12 litre vehicle. 4 cylinders, and a hand-crank start. That's 140 cu in per cylinder. Err... I sometimes make parts for it using my CNC machines. -- 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] VFD trouble
I think the spindle manufacturers expressly forbid auto tune. Try setting the inverter to 400Hz, this indicates to the inverter that it is a low inductance motor and will be able to control the current better, remember to set both base frequency and max frequency. -Original Message- From: alex chiosso [mailto:achio...@gmail.com] Sent: 26 November 2014 17:40 To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] VFD trouble This VFD has also a Auto tune function , did you tried it ? Alex On Wed, Nov 26, 2014 at 4:34 PM, alex chiosso achio...@gmail.com wrote: Hi Viesturs. How did you connect the motor phases (on the motor terminal blocks) star or triangle ? The motor seems to be a 2 poles (12000rpm at 200Hz) and the phase voltage is 220VAC so you should connect the motor phases to star type isn't it ? Are you driving the speed reference with an analog input or via a digital input o via the VFD keypad ? Are you sure that you're giving the right reference value to the VFD ? Alex On Wed, Nov 26, 2014 at 4:19 PM, p...@wpnet.us wrote: The VFD manufacturers have white papers specifically covering driving multiple motors from one larger VFD so it's absolutely a supported configuration. You need separate overcurrent protection for each connected motor though since the VFD's OCP can't work to protect an individual motor in such a configuration. --Original Mail-- From: Ron Ginger rongin...@roadrunner.com To: emc-users@lists.sourceforge.net Sent: Wed, 26 Nov 2014 07:38:27 -0500 Subject: Re: [Emc-users] VFD trouble Are you trying to run 2 motors wired in parallel to one VFD? I dont think that will work. Their rotors will never be in phase so any feedback generated is going to be really strange to the VFD. ron ginger On 11/25/2014 10:30 PM, emc-users-requ...@lists.sourceforge.net wrote: I need to drive 2 high-speed spindle motors, 3,7 kW each. For that I have 11 kW VFD. - - 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 -- 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] VFD trouble
I found some hints from a electrospindle manufacturer about VFD programming to get the motor working : When the inverter is connected with the motor it must be remembered to modify some inverter parameters to allow the motor work properly and not to be damaged. *Warning:* - feeding the motor with a wrong feed curve can irreparably damage the motor in a few seconds. - the factory setting of every inverter must be modified to allow it to work with a HF motor/electrospindle. *Most important parameters:* - *Base Frequency (point A):* it is the frequency to which it correspond the maximun voltage acceptable by the motor (base voltage). The factory setting of this parameter is usually 50Hz this parameter must be setted equal to the base frequency of the motor (usually 100Hz, 200Hz, 300Hz, 400Hz depends on the motor type). The value of the base frequency of your motor is written on the nameplate or in the instruction sheet. - *Base Input Voltage:* it is the maximum input voltage to which the motor can work. Generally this value is 220V or 380V, it depens on the motor wiring. - *Max Frequency (point B):* it is the maximum frequency to which the motor can work. It can correspond with the base frequency or it can be higher depending on the bearing type and on the balancing grade. - *Auto tuning functions:* to avoid any damaging of the motor we suggest not to use the auto tuning functions of your inverter but manually set up the inverter parameters with a linear [V/F] curve. *Warning:* please refer to the inverter manufacturer manual to correctly install the inverter. As Belli Button pointed out. Alex On Wed, Nov 26, 2014 at 5:09 PM, Belli Button be...@iafrica.com wrote: I think the spindle manufacturers expressly forbid auto tune. Try setting the inverter to 400Hz, this indicates to the inverter that it is a low inductance motor and will be able to control the current better, remember to set both base frequency and max frequency. -Original Message- From: alex chiosso [mailto:achio...@gmail.com] Sent: 26 November 2014 17:40 To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] VFD trouble This VFD has also a Auto tune function , did you tried it ? Alex On Wed, Nov 26, 2014 at 4:34 PM, alex chiosso achio...@gmail.com wrote: Hi Viesturs. How did you connect the motor phases (on the motor terminal blocks) star or triangle ? The motor seems to be a 2 poles (12000rpm at 200Hz) and the phase voltage is 220VAC so you should connect the motor phases to star type isn't it ? Are you driving the speed reference with an analog input or via a digital input o via the VFD keypad ? Are you sure that you're giving the right reference value to the VFD ? Alex On Wed, Nov 26, 2014 at 4:19 PM, p...@wpnet.us wrote: The VFD manufacturers have white papers specifically covering driving multiple motors from one larger VFD so it's absolutely a supported configuration. You need separate overcurrent protection for each connected motor though since the VFD's OCP can't work to protect an individual motor in such a configuration. --Original Mail-- From: Ron Ginger rongin...@roadrunner.com To: emc-users@lists.sourceforge.net Sent: Wed, 26 Nov 2014 07:38:27 -0500 Subject: Re: [Emc-users] VFD trouble Are you trying to run 2 motors wired in parallel to one VFD? I dont think that will work. Their rotors will never be in phase so any feedback generated is going to be really strange to the VFD. ron ginger On 11/25/2014 10:30 PM, emc-users-requ...@lists.sourceforge.net wrote: I need to drive 2 high-speed spindle motors, 3,7 kW each. For that I have 11 kW VFD. - - 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
[Emc-users] BLDC Comp
I'm playing with trying to run a 3P induction motor with bldc.comp. I set cfg=n which seems to just output three sine float values. I'm assuming that I could run these into three pwm comps then out to a set of half bridges, or is there an option that tells bldc to output the pwm directly? -- 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] BLDC Comp
On 26 November 2014 at 16:38, Kirk Wallace kwall...@wallacecompany.com wrote: is there an option that tells bldc to output the pwm directly? No. I did consider adding a base-thread function that did phase-locked PWM but decided that the frequency would tend to be impractically low. The Mesa cards have a 3-phase PWM module which is ideal, though. -- 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] LCNC VS Machinekit JWP
I do not understand what you are doing? I have done this with a comp long time ago, it is only a displacement between commanded position and feedback, am I right? This is not solving the missing feature in linuxcnc, IMHO it is only a very, very basic work around. A user must be able to push PAUSE, than take his jog Wheel or even the jog button from the GUI, move around like he wish and if he push resume, the machine should start at the position he paused the program. IMHO that is not solved. But that is exactly the feature users want. Please explain very in detail, how you this component will be used on a real machine! Clicking very small button with a mouse? Or do we need an extra panel? What about the keyboard shortcuts, what about my hardware button? Norbert Am 25.11.2014 um 23:27 schrieb Sebastian Kuzminsky: On 11/25/14 3:24 PM, Gene Heskett wrote: On Tuesday 25 November 2014 16:44:01 Sebastian Kuzminsky did opine https://www.youtube.com/watch?v=8QGOj39I-kk Looks a bit puzzling Seb, as we can't see how the machine is reacting, and what he is doing with the pulldown is not visible in the backplot. Yes, Dewey's moveoff system behaves differently from normal jogs. The offset is handled separately from the machine's nominal controlled point, so the DRO and the backplot do not reflect the JWP motion. You use the buttons on his JWP window to move, instead of the normal jog buttons or jog wheel. -- 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] EMC communication problem then motor start
PWM is great for efficient motor but unfortunately it is also very good at disturbing digital communication. Do anybody had any problems with the communication errors then motor start? Nicklas Karlsson -- 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] BLDC Comp
On 11/26/2014 08:51 AM, andy pugh wrote: On 26 November 2014 at 16:38, Kirk Wallace kwall...@wallacecompany.com wrote: is there an option that tells bldc to output the pwm directly? No. I did consider adding a base-thread function that did phase-locked PWM but decided that the frequency would tend to be impractically low. The Mesa cards have a 3-phase PWM module which is ideal, though. I'm thinking more in terms of what I can do using my parts bins and junk pile. I have an IRAMS on hand, and HAL. I just need to fill in the bits in between. -- 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] LCNC VS Machinekit JWP
norbert, AGREED!! LOL Pete On Wed, Nov 26, 2014 at 12:12 PM, Niemand Sonst nie...@web.de wrote: I do not understand what you are doing? I have done this with a comp long time ago, it is only a displacement between commanded position and feedback, am I right? This is not solving the missing feature in linuxcnc, IMHO it is only a very, very basic work around. A user must be able to push PAUSE, than take his jog Wheel or even the jog button from the GUI, move around like he wish and if he push resume, the machine should start at the position he paused the program. IMHO that is not solved. But that is exactly the feature users want. Please explain very in detail, how you this component will be used on a real machine! Clicking very small button with a mouse? Or do we need an extra panel? What about the keyboard shortcuts, what about my hardware button? Norbert Am 25.11.2014 um 23:27 schrieb Sebastian Kuzminsky: On 11/25/14 3:24 PM, Gene Heskett wrote: On Tuesday 25 November 2014 16:44:01 Sebastian Kuzminsky did opine https://www.youtube.com/watch?v=8QGOj39I-kk Looks a bit puzzling Seb, as we can't see how the machine is reacting, and what he is doing with the pulldown is not visible in the backplot. Yes, Dewey's moveoff system behaves differently from normal jogs. The offset is handled separately from the machine's nominal controlled point, so the DRO and the backplot do not reflect the JWP motion. You use the buttons on his JWP window to move, instead of the normal jog buttons or jog wheel. -- 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 -- Pete Matos A and N Precision and Fabrication Maryville, Tennessee 865-236-8996 -- 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] VFD trouble
You definitely cooking them because the frequency is too low. Roland On 26 November 2014 at 17:04, Viesturs Lācis viesturs.la...@gmail.com wrote: 2014-11-26 15:54 GMT+02:00 alex chiosso achio...@gmail.com: Hi Viesturs . Could you please specify the motor data and the VFD data (manufacturers + material code) ? I never seen any VFD to control 2 motors in series connection . The high speed motors are equivalent to asincronous or they are not ? A standard VFD (V/F or sensor less vector) can control this kind of motors ? Maybe you have to tweak some parameters into the VFD (such as electrical motor data) to best fit the electrical motor characteristics . Spindle motors: Elte TMPE4 14/2, 12000 RPM, 3,7 kW http://www.eltesrl.com/index.php?option=com_contentview=articleid=26Itemid=48lang=en VFD: Teco E510-415-H3F https://www.inverterdrive.com/file/Teco-E510-Manual-EN-v2 Yes, these motors are asynchronous motors. I tried tweaking VFD parameters, but without any luck. The same settings work for normal 0,55 kW motor, those spindles work fine with 2kW VFD I have on my router, but together the large VFD and those spindles (even when one spindle is attached at a time) do not work. I will try to find some inductors to try Jon's suggestion. I would appreciate any help in finding them (seller within EU is preferred). 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
Re: [Emc-users] EMC communication problem then motor start
I have had many problems with USB communications with motors and plasma. You can overcome these by putting an electrically isolated barrier in the usb line. There are some chips from Linear (LTM2448) that will do just that. The equipment on either end cannot be connected to the same ground or supply if you go this route. On 2014-11-26 19:07, Karlsson Wang wrote: PWM is great for efficient motor but unfortunately it is also very good at disturbing digital communication. Do anybody had any problems with the communication errors then motor start? Nicklas Karlsson -- 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
[Emc-users] NASA's 3D Printer
http://www.nasa.gov/content/international-space-station-s-3-d-printer/#.VHYN4dewfiE What, no bust of Yoda? -- 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] Semi OT: Rotary encoder Z pulse alternatives
On Wednesday 26 November 2014 02:56:00 Gregg Eshelman did opine And Gene did reply: On 11/25/2014 2:19 PM, Dave Cole wrote: Since you have limited availability of local parts; you might want to consider using some automotive sensors such as the camshaft and crankshaft sensors used by most cars these days. Also have a look at vehicle speed sensors on the outputs of transmissions. In the later 90's General Motors went to a 40 tooth reluctor and a Hall effect sensor on the output shaft of the 700R4 transmission, also known as the 4L60 or 4L60E (E for Electronic control). The reluctor is removable from the shaft and has a pretty good sized inside diameter. General Motors part number 24202711 for the reluctor ring. The sensor is part number 8673299 but other Hall effect sensors should work. Got your calipers handy Gregg? How big is it, ID, OD and thickness. I am thinking it might be possible to shoehorn it into what is euphemistically called the head on my micro mill. If I don't junk it. In any event, this gizmo could come in handy whatever I do. I'd go measure it, but I'm 25 miles from the nearest guvmnt motors dealer. That whole shebang may leave as I am about worn out replacing its plastic gears anyway. Noisy, sloppy crap. I have that 400 watt motor I took out of the 7x12, which is a timing belt drive, which could with the right setup, drive a 2 gear idler shaft with the gears mounted on eccentrics so only one is engaged at a time. I'd have to build everything from the spindle housing flange up. Not a problem except for the time I might not have at my age. Or an adapter plate that puts the whole X3 post spindle on it. That skinny little post is too flexible under load anyway. Thanks. 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
[Emc-users] . Re: LCNC VS Machinekit JWP (Niemand Sonst)
Norbert Wrote: I do not understand what you are doing? I have done this with a comp long time ago, it is only a displacement between commanded position and feedback, am I right? This is not solving the missing feature in linuxcnc, IMHO it is only a very, very basic work around. A user must be able to push PAUSE, than take his jog Wheel or even the jog button from the GUI, move around like he wish and if he push resume, the machine should start at the position he paused the program. IMHO that is not solved. But that is exactly the feature users want. Please explain very in detail, how you this component will be used on a real machine! Clicking very small button with a mouse? Or do we need an extra panel? What about the keyboard shortcuts, what about my hardware button? Norbert You are my hero Norbert but at this point we will take anything. Really hoping for a real jog while paused solution and you are correct in the fact that mouses on the shop floor are non existant. Jeff Johnson john...@superiorroll.com Superior Roll Turning 734-279-1831 -- 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] LCNC VS Machinekit JWP
Quote A user must be able to push PAUSE, than take his jog Wheel or even the jog button from the GUI, move around like he wish and if he push resume, the machine should start at the position he paused the program. End Quote That is exactly what we have been talking about/looking for, for 2 1/2 years now. Thank You Norbert Thanks Rick -- 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)
Am 26.11.2014 um 18:36 schrieb Jeff Johnson: You are my hero Norbert but at this point we will take anything. Really hoping for a real jog while paused solution and you are correct in the fact that mouses on the shop floor are non existant. Jeff, I promise you, if this will be implemented, and you ask for a Jog while pause solution, the answer will be for ever: Use the displacement comp and do it with hal A solution, not solving a problem is no solution, it is never more than a work around. Norbert -- 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] Old Nashes and machining transmission parts. Re: Semi OT: Rotary encoder Z pulse alternatives
On Wednesday 26 November 2014 03:55:18 Gregg Eshelman did opine And Gene did reply: I am sure we've both seen some pretty square camshafts but everytime I think about the roller tappet stuff, I recall the cam and tappets in the Nash Ambassador big 6 engine used from '49 to the end of Nash. and despite the single barreled carb and that covered ditch in the head casting capable of being uncovered and suitably polished, My folks had a 1952 Golden Anniversary edition Nash Ambassador with the special metallic gold and dark red paint. The single side draft carb was a PITA. If the car was parked anywhere with any tilt toward the left, it was very hard to start because the gasoline would run out of the carb instead of into the intake. I'd like to take one of those engines, CNC mill out the intake channel, just enough to smooth it. Polish the ports too. I did that, with a drill and sandpaper. Worked well. Then mill a new cover plate with injector bungs and convert the carb to a dry throttle body. No more problems with fuel going the wrong way before it fires up. I never had that problem that I noticed. Was there ever a dual carb version of the big overhead valve Nash straight 6? Those engines are insanely heavy, much more massive than any common American 1960's and later V8. Not to my knowledge Gregg. Heavy, and taller by 6 than anything else since. Much of the fuel efficiency came from the optional overdrive on the manual 3-speed transmission. True, but there was another effect there. Dead flattop pistons and about 40% of the top of the combustion chamber was milled flat, so it had more turbulance from the mix being sqwished as it approached TDC than most engines of its day. And, once started and the cable pulled to advance the timing about 35-40 degrees, the combination made for very efficient burning. But if it was killed, shove that cable in before stepping on the clutch to restart it, else that amount of advance would bend the starter shaft everytime. I found that out quickly and expensively. :( The ideal situation would have been much heavier advance weights that swung all the way out by 500 revs, with just enough springs to pull it back to TDC below 150 revs, but while I considered it, I wasn't able to locate the heavier weights. Spin it would though, fast enough to make 1/4 long pieces out of its rings. 4.375 strokers should never be pushed beyond about 6 grand even if they were pulling strongly yet. I got tired of listing to one of the guys in my crowd at the time, bragging about all the 11/1 HC heads and dual carbs on his 50 ford, and invited him to lay the title on the counter alongside mine we'd go check out favorite 2 block dragway to see how well we actually faired. He knew the low gear only rule, but didn't know I had a switch on the gear shift that controlled my overdrive. I also knew his block had not been relieved so it could breath. We started out, with me in low+od, and he pulled ahead about a length right away, but he was out of free breathing revs at the end of the first block, and at the end of the 2nd block I was about 3 lengths ahead. But that turned that big six up around 7500 revs made grapenuts out of its rings. I didn't pick up his title, didn't want it, but went looking for something else. But I did get what I wanted, which was for Tom to shut the hell up bragging about his hot rod ford. I guess he was suitably embarrassed to have a Nash clean his clock. He couldn't play black jack either. ;-) There's a thing I'd like to figure out how to rebuild, the planet gear carrier in that Borg Warner overdrive. Either the needle bearings wear or the gear bores do. Things get sloppy and pressure on the gears increases. That causes heating, making the ring gear expand until it seizes in the overdrive housing. *BANG* Car comes to a quick halt! Never had that happen Gregg. Ever. The problem with fixing those is the pins the planet gears spin on are welded into the carrier, then an oil pickup/distribution ring is crimped on. That's there to use centrifugal force to push gear oil into the planet gear needle bearings. Of course the welds are under that crimped on ring. The ring would pretty much have to be destroyed to get it off so the welds could be milled through. Sooo, design and machine new dies to stamp new oil rings, and more dies to crim the new rings on. Also design and build a fixture to hold the planet carrier to mill out the welds on the pins. Then there's the wear problems. If the gears and pins are OK, drop in new pins of stock diameter. If the pins are worn, replace with new ones hard enough for high pressure roller bearing use. If the gear bores are worn, grind or hone straight and concentric to a suitable diameter for use with a larger stock diameter of needle bearing rollers. Then there's accommodating all the slightly different output shafts and other
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: Am 26.11.2014 um 18:36 schrieb Jeff Johnson: You are my hero Norbert but at this point we will take anything. Really hoping for a real jog while paused solution and you are correct in the fact that mouses on the shop floor are non existant. Jeff, I promise you, if this will be implemented, and you ask for a Jog while pause solution, the answer will be for ever: Use the displacement comp and do it with hal A solution, not solving a problem is no solution, it is never more than a work around. Norbert -- 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] Setting outputs based on tool number
Hi all, I need to set a couple outputs based on which tool is selected. I only have 3 tools. I expect others have run into this issue. So far the easiest way I see is to convert iocontrol.0.tool-number into a float and then use comparators on that value to set the states of my outputs. Is there an easier way to do this? Thanks, Eric -- 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)
David, I am not sure if Jog While Paused is allready implemented in machinekit. Norbert Am 26.11.2014 um 19:06 schrieb David Armstrong: 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: Am 26.11.2014 um 18:36 schrieb Jeff Johnson: You are my hero Norbert but at this point we will take anything. Really hoping for a real jog while paused solution and you are correct in the fact that mouses on the shop floor are non existant. Jeff, I promise you, if this will be implemented, and you ask for a Jog while pause solution, the answer will be for ever: Use the displacement comp and do it with hal A solution, not solving a problem is no solution, it is never more than a work around. Norbert -- 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 -- 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] Semi OT: Rotary encoder Z pulse alternatives
On Wednesday 26 November 2014 04:16:05 Gregg Eshelman did opine And Gene did reply: On 11/26/2014 12:10 AM, Gene Heskett wrote: Is GM's patent on hydraulic roller tappets still in force? They were royalty hungry yet in the late 40's clear into the 70's with that, first designed and used in the 35 V16 engines they made for the biggest Caddies from 35 to 37. Except for its poured rod bearings, that engine could be made up nearly 300 horses from its original 165, then 185, by swapping the rods out for inserted versions, swapping the oil pumps plumbing around to feed a drilled crankshaft, giving it excellent longevity, and swapping the intake manifolds from side to side, which put the carb flanges upright replace the OEM updraft Marvel-Shebler carbs with a pair of bolt them on, Stromberg 48's, the 94's big brother. Sounds a bit like what Jay Leno had done to the big engine in his Blastolene Special. The Continental AV1790-5B M47 Patton tank engine originally produced around 800 horsepower and in the car got around 2~3 MPG. After Leno had the Greyhound bus transmission replaced with a six speed Allison automatic (used in semi tractors), installed fuel injection and twin turbochargers, it doubled the horsepower to 1600 and gained 100% MPG increase to 5 MPG. http://uncommonengineering.com/ Crazy things done to flathead Ford and Hudson straight 6 engines by a person who used to build engines for Indy cars. Now there is true artistry in hard metal. Imagine a 308 Hudson with added webs in the block for a custom 7 bearing crankshaft, EFI and a 6-71 supercharger. ;-) He's also revived the ARDUN overhead valve heads for Ford flathead V8s and that totally insane flathead intake that mounts TWO superchargers. Probably best to use that on the somewhat stronger Mercury version of the flatty. Then there's his custom heads and camshaft that changes the in block intake valves to exhausts (for 16 exhaust valves) and has one huge, centrally located intake valve per cylinder. It takes no imagination at all to assume that nothing this guy builds is in any way inexpensive. Yeah, bring big bills, in 2 or 3 little red wagons. 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] LCNC VS Machinekit JWP
Dave, In MK it does about the same thing that dgarretts moveoff component does, you set an amount in a popup/side bar and press enable, and then it moves whatever the amount is you entered. The MK version though leaves the values that you entered, and if you press resume, make some chips, then press pause again, it will automatically offset that same amount, if not disabled prior. So if you performed the offset on the OD of a part, forgot to clear and disable the component, then pressed pause while doing a bore, there goes your part Dgarrett's looks as though it sets everything back to zero, and disables the component for the next time, so the big Oh Shit doesn’t happen by mistake. I hope that this topic maintains traction, and that the Users, which seem to be far more than what lead on to be, that need this functionality start to voice their opinions about this right along side us. As we have said numerous times in the past, if we could hack the code, and make it work, even remotely, we would, but I am no programmer. We will test ANYTHING thrown at us to help in the forward momentum of the LinuxCNC project, Thanks Again Guys Rick -- 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] Semi OT: Rotary encoder Z pulse alternatives
2014-11-25 1:19 GMT+02:00 Leonardo Marsaglia leonardomarsagli...@gmail.com : Hello guys! I found some 360 ppr encoders that are really cheap on ebay. Here's the link: http://www.ebay.com/itm/NEW-Incremental-Rotary-Encoder-360p-r-6mm-Shaft-5-24vdc-/290778909653?pt=LH_DefaultDomain_0hash=item43b3c60bd5 The matter is they only come with A and B pulses, no index pulse capabilities. I was planning to use them for a spindle and I thought about replacing the Z pulse to reset the counters and stablish the zero position using an external proximity sensor mounted somewhere on the spindle. Do you think this is a good approach? The other option is to reset the counters counting by software but I would lose the zero position everytime I turn of the machine so a physical zero would be ideal. Leonardo, I recently purchased 720p encoder with index and differential output for $23 from aliexpress. That item price has been increased since, but there are many similar: http://www.aliexpress.com/item/New-600P-R-Rotary-Encoder-E6B2-CWZ6C-5-To-24V-DC-ABZ-Phase-For-OMRON-56152/2023445335.html - TTL output, $21 http://www.aliexpress.com/item/FREE-SHIPPING-E6B2-CWZ1X-1000P-R-Rotary-encoder/2028209294.html - diff output, S28 -- Andrew -- 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] EMC communication problem then motor start
I have tried with USB isolator made with Icoupler devices from analog devices on other products without luck. I am using ethernet which I think have a isolation transformer. I do not think there are any tolerances for missed packets right now. For serial communication I have tried opto couplers without with some improvement. I have also tried isolation devices from I think Texas instruments made from differential drive over two capacitors and they are great but I do not think I could use them for 100Mbit ethernet. I will increase tolerance for missed packets to be able to measure percentage of lost packets, it is not perfect but better than nothing. I will also add a common mode inductor and maybe a shielded cable. I have encountered the problem on several products so it is not isolated to just this one I built myself. Nicklas Karlsson On Wed, 26 Nov 2014 19:28:25 +0200 Marius Liebenberg mar...@mastercut.co.za wrote: I have had many problems with USB communications with motors and plasma. You can overcome these by putting an electrically isolated barrier in the usb line. There are some chips from Linear (LTM2448) that will do just that. The equipment on either end cannot be connected to the same ground or supply if you go this route. On 2014-11-26 19:07, Karlsson Wang wrote: PWM is great for efficient motor but unfortunately it is also very good at disturbing digital communication. Do anybody had any problems with the communication errors then motor start? Nicklas Karlsson -- 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] VFD trouble
On 11/26/2014 03:51 AM, Viesturs Lācis wrote: Jon, could you, please, share some link for such kind of inductor? I am looking at website of local seller of electronics stuff, I do not see any inductors with 9A rated current and anything above 22 uH inductivity. The inductors I have were custom made for an old project. They are what is called bobbin or spool inductors, they look like a ferrite spool wrapped with wire. This is the series : http://www.rencousa.com/products/rl-1256 The specific inductors I'm using are 1.67 mH, but I'm not sure it is real critical. What this does is slow down the rate of current rise when the VFDs transistors are on. 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] VFD trouble
High voltage on low frequency will overheat an induction motor. It is possible to use flux weakening and run on lower voltage with lower load but if they are overloaded because of two low available torque I think overcurrent may be possible. Nicklas Karlsson On Wed, 26 Nov 2014 12:48:43 -0600 Jon Elson el...@pico-systems.com wrote: On 11/26/2014 03:51 AM, Viesturs Lācis wrote: Jon, could you, please, share some link for such kind of inductor? I am looking at website of local seller of electronics stuff, I do not see any inductors with 9A rated current and anything above 22 uH inductivity. The inductors I have were custom made for an old project. They are what is called bobbin or spool inductors, they look like a ferrite spool wrapped with wire. This is the series : http://www.rencousa.com/products/rl-1256 The specific inductors I'm using are 1.67 mH, but I'm not sure it is real critical. What this does is slow down the rate of current rise when the VFDs transistors are on. 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 -- 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] Setting outputs based on tool number
On 26 November 2014 at 18:00, Eric H. Johnson ejohn...@camalytics.com wrote: I need to set a couple outputs based on which tool is selected. I only have 3 tools. I expect others have run into this issue. So far the easiest way I see is to convert iocontrol.0.tool-number into a float and then use comparators on that value to set the states of my outputs. I think I would use mux_generic, with the integer selector linked to the tool number. (though you would still have to convert tool-number from signed to unsigned) http://www.linuxcnc.org/docs/html/man/man9/mux_generic.9.html You could either use more then one, of type bit or use type unsigned then convert the bit patterns to output pins using bitslice http://www.linuxcnc.org/docs/html/man/man9/bitslice.9.html This seems like a case where an extra field in the tool database would be rather handy. -- 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] NASA's 3D Printer
On 26 November 2014 at 17:30, Kirk Wallace kwall...@wallacecompany.com wrote: http://www.nasa.gov/content/international-space-station-s-3-d-printer/#.VHYN4dewfiE I guess the won't need support structures the same way. (which makes me wonder if an alternative orientation might have been beneficial) -- 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)
Dnia 26-11-2014 o godz. 19:18 Niemand Sonst napisał(a): David, I am not sure if Jog While Paused is allready implemented in machinekit. There is sim config in mk for jwp: configs/sim/axis/jog-while-pause9.ini Michael Norbert Am 26.11.2014 um 19:06 schrieb David Armstrong: 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: Am 26.11.2014 um 18:36 schrieb Jeff Johnson: You are my hero Norbert but at this point we will take anything. Really hoping for a real jog while paused solution and you are correct in the fact that mouses on the shop floor are non existant. Jeff, I promise you, if this will be implemented, and you ask for a Jog while pause solution, the answer will be for ever: Use the displacement comp and do it with hal A solution, not solving a problem is no solution, it is never more than a work around. Norbert -- 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 -- 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] EMC communication problem then motor start
i normaly make sure that all low voltage wiring is sheilded and watch for ground loops and vfd inputs are via filters and Balance transformers , ethernet coms are usually problem free so long as you use good cables and not the cheap Aluminium wire ones as they are using balanced paired cores , in 2 real major projects i ended up passing the low volt cables inside sheilding cut from ur67 coax On 26 November 2014 at 18:40, Karlsson Wang nicklas.karls...@karlssonwang.se wrote: I have tried with USB isolator made with Icoupler devices from analog devices on other products without luck. I am using ethernet which I think have a isolation transformer. I do not think there are any tolerances for missed packets right now. For serial communication I have tried opto couplers without with some improvement. I have also tried isolation devices from I think Texas instruments made from differential drive over two capacitors and they are great but I do not think I could use them for 100Mbit ethernet. I will increase tolerance for missed packets to be able to measure percentage of lost packets, it is not perfect but better than nothing. I will also add a common mode inductor and maybe a shielded cable. I have encountered the problem on several products so it is not isolated to just this one I built myself. Nicklas Karlsson On Wed, 26 Nov 2014 19:28:25 +0200 Marius Liebenberg mar...@mastercut.co.za wrote: I have had many problems with USB communications with motors and plasma. You can overcome these by putting an electrically isolated barrier in the usb line. There are some chips from Linear (LTM2448) that will do just that. The equipment on either end cannot be connected to the same ground or supply if you go this route. On 2014-11-26 19:07, Karlsson Wang wrote: PWM is great for efficient motor but unfortunately it is also very good at disturbing digital communication. Do anybody had any problems with the communication errors then motor start? Nicklas Karlsson -- 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 -- 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 26 November 2014 at 19:19, Michał Geszkiewicz mic...@wp.pl wrote: There is sim config in mk for jwp: configs/sim/axis/jog-while-pause9.ini Do you know if that behaves like the youtube video here: http://youtu.be/HNuu_D4X_EM Which appears to be keyboard jogging in pause mode. I imagine not, as that is before the split (I think) and is LinuxCNC. -- 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
[Emc-users] .Re: LCNC VS Machinekit JWP
I can definitely tell you no that is not how it looks or works, I have been sitting here for the last half hour using that, and that's not it. If that was how it did work and look it would be a decent work around. If I knew how print screen' worked in Debian, I would post a picture. Thanks Rick -- 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] .Re: LCNC VS Machinekit JWP
Here it is, http://postimg.org/image/yqmjgbiv9/ Thanks Rick -- 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] EMC communication problem then motor start
The switching is very fast because gate transistor is 10 ohm so I will increase as an intermediate solution. The problem is however still interesting because it is so common. Nicklas Karlsson On Wed, 26 Nov 2014 19:34:44 + David Armstrong cncbas...@gmail.com wrote: i normaly make sure that all low voltage wiring is sheilded and watch for ground loops and vfd inputs are via filters and Balance transformers , ethernet coms are usually problem free so long as you use good cables and not the cheap Aluminium wire ones as they are using balanced paired cores , in 2 real major projects i ended up passing the low volt cables inside sheilding cut from ur67 coax On 26 November 2014 at 18:40, Karlsson Wang nicklas.karls...@karlssonwang.se wrote: I have tried with USB isolator made with Icoupler devices from analog devices on other products without luck. I am using ethernet which I think have a isolation transformer. I do not think there are any tolerances for missed packets right now. For serial communication I have tried opto couplers without with some improvement. I have also tried isolation devices from I think Texas instruments made from differential drive over two capacitors and they are great but I do not think I could use them for 100Mbit ethernet. I will increase tolerance for missed packets to be able to measure percentage of lost packets, it is not perfect but better than nothing. I will also add a common mode inductor and maybe a shielded cable. I have encountered the problem on several products so it is not isolated to just this one I built myself. Nicklas Karlsson On Wed, 26 Nov 2014 19:28:25 +0200 Marius Liebenberg mar...@mastercut.co.za wrote: I have had many problems with USB communications with motors and plasma. You can overcome these by putting an electrically isolated barrier in the usb line. There are some chips from Linear (LTM2448) that will do just that. The equipment on either end cannot be connected to the same ground or supply if you go this route. On 2014-11-26 19:07, Karlsson Wang wrote: PWM is great for efficient motor but unfortunately it is also very good at disturbing digital communication. Do anybody had any problems with the communication errors then motor start? Nicklas Karlsson -- 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 -- 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
Re: [Emc-users] . Re: LCNC VS Machinekit JWP
I would have to take a guess and say, that would work with any GUI correct? Rick -- 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] Setting outputs based on tool number
On 26 November 2014 at 19:57, Sebastian Kuzminsky s...@highlab.com wrote: How would this extra field in the tool db be exposed in HAL? Wouldn't that require changes to IO? First there would need to be a tool database, but then whatever plug-in was fielding tool-chang not-NML requests would use the tool database API to extract the information. (I didn't say that it was anywhere near happening). For the application in question it would probably suffice to add magic bits to the pocket number of the tool and bitslice them out. -- 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] EMC communication problem then motor start
On Wed, 26 Nov 2014, Karlsson Wang wrote: Date: Wed, 26 Nov 2014 20:53:56 +0100 From: Karlsson Wang nicklas.karls...@karlssonwang.se 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] EMC communication problem then motor start The switching is very fast because gate transistor is 10 ohm so I will increase as an intermediate solution. The problem is however still interesting because it is so common. Nicklas Karlsson One option that helps a lot on PWM drives is a common mode choke on the PWM outputs (a large ferrite bead on the 2 (DC) or 3 (AC) motor wires). One major problem with PWM outputs without slew rate limiting driving motor windings is the nearly unlimited current spike that happens at switching time because of the very fast slew rate PWM signal driving into wiring/ motor winding to ground capacitance. On Wed, 26 Nov 2014 19:34:44 + David Armstrong cncbas...@gmail.com wrote: i normaly make sure that all low voltage wiring is sheilded and watch for ground loops and vfd inputs are via filters and Balance transformers , ethernet coms are usually problem free so long as you use good cables and not the cheap Aluminium wire ones as they are using balanced paired cores , in 2 real major projects i ended up passing the low volt cables inside sheilding cut from ur67 coax On 26 November 2014 at 18:40, Karlsson Wang nicklas.karls...@karlssonwang.se wrote: I have tried with USB isolator made with Icoupler devices from analog devices on other products without luck. I am using ethernet which I think have a isolation transformer. I do not think there are any tolerances for missed packets right now. For serial communication I have tried opto couplers without with some improvement. I have also tried isolation devices from I think Texas instruments made from differential drive over two capacitors and they are great but I do not think I could use them for 100Mbit ethernet. I will increase tolerance for missed packets to be able to measure percentage of lost packets, it is not perfect but better than nothing. I will also add a common mode inductor and maybe a shielded cable. I have encountered the problem on several products so it is not isolated to just this one I built myself. Nicklas Karlsson On Wed, 26 Nov 2014 19:28:25 +0200 Marius Liebenberg mar...@mastercut.co.za wrote: I have had many problems with USB communications with motors and plasma. You can overcome these by putting an electrically isolated barrier in the usb line. There are some chips from Linear (LTM2448) that will do just that. The equipment on either end cannot be connected to the same ground or supply if you go this route. On 2014-11-26 19:07, Karlsson Wang wrote: PWM is great for efficient motor but unfortunately it is also very good at disturbing digital communication. Do anybody had any problems with the communication errors then motor start? Nicklas Karlsson -- 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
Re: [Emc-users] VFD trouble
2014-11-26 19:23 GMT+02:00 Roland Jollivet roland.jolli...@gmail.com: You definitely cooking them because the frequency is too low. Probably. But the problem is that VFD does not go higher than 8-9 hz. Do you have any idea, why and how to solve that? 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] Semi OT: Rotary encoder Z pulse alternatives
On 26 November 2014 at 17:32, Gene Heskett ghesk...@wdtv.com wrote: That whole shebang may leave as I am about worn out replacing its plastic gears anyway. Noisy, sloppy crap. You can probably get metal replacement gears from LittleMachineshop. But they are even more noisy. Even with a full oil bath they bother me. http://www.littlemachineshop.com/products/product_view.php?ProductID=3453 -- 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] VFD trouble
On 26 November 2014 at 18:50, Karlsson Wang nicklas.karls...@karlssonwang.se wrote: High voltage on low frequency will overheat an induction motor. I am pretty sure that Viesturs knows this. His question is why his VFD won't go above 8Hz. -- 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] Setting outputs based on tool number
from my Heidenhain experience every cell in the tool table is mapped to system variables which are loaded when the tool table is loaded because of this i could write a row of cells in the tool table and use them for whatever i wanted example cell 1= tool pod, cell 2 = tool diamets, cell 3 = favorite color, cell 3 = flow meter set point for whatever i wanted simple, flexible regards Tomp tjtr33 On 11/26/2014 01:57 PM, Sebastian Kuzminsky wrote: On 11/26/2014 11:58 AM, andy pugh wrote: On 26 November 2014 at 18:00, Eric H. Johnson ejohn...@camalytics.com wrote: I need to set a couple outputs based on which tool is selected. I only have 3 tools. I expect others have run into this issue. So far the easiest way I see is to convert iocontrol.0.tool-number into a float and then use comparators on that value to set the states of my outputs. ... This seems like a case where an extra field in the tool database would be rather handy. How would this extra field in the tool db be exposed in HAL? Wouldn't that require changes to IO? -- 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] VFD trouble
2014-11-26 22:30 GMT+02:00 andy pugh bodge...@gmail.com: On 26 November 2014 at 18:50, Karlsson Wang nicklas.karls...@karlssonwang.se wrote: High voltage on low frequency will overheat an induction motor. I am pretty sure that Viesturs knows this. His question is why his VFD won't go above 8Hz. Yes! Thanks, Andy! I just do not understand, why it does not work with those spindle motors (I am now trying to run one motor at a time), while the same motor works with a smaller, 2kW VFD. This 11 kW VFD works with normal 0,55 kW 4-pole motor (attached to gearbox), so I do not get this. I tend to agree with Jon about the low inductivity - low inductivity means high current and that is what heats the motor up - ok, I get that. But why does 2 kW VFD works with this motor, but 11 kW does not? Are those current sensing elements less sensitive that bigger VFD cannot measure changes of current in motor as needed? Then I guess that attaching 2 motors in parallel should improve it. Ron, of course, initial phase alignment of motors would not match. Until the voltage is applied to motor and all the phases are automagically aligned. I am certain that this is not a problem here. BTW it turns on and increases the frequency as expected, when no motor is attached at all. The frequency command is provided by potentiometer on front panel, I do not intend to use any kind of analog signals or communication bus for this purpose. Ok, I will just try to make some video with my phone tomorrow to show it. 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] EMC communication problem then motor start
The motor is on table with no capacitance to ground but then you mention capacitance I forgot the parasitic winding capacitance. The winding parasitic capacitance may actually cause a high differential current spike at switch turn on. The disturbance travel from the COM pin to the signal GND on an IR2110 driver chip with an allowed voltage difference of a few volts so there are no real direction but the communication is still corrupted. I will try a simple resistor instead of motor, an ordinary high frequency inductor and common mode. I already tried a few turns with a ferrite. Nicklas Karlsson On Wed, 26 Nov 2014 12:12:16 -0800 (PST) Peter C. Wallace p...@mesanet.com wrote: On Wed, 26 Nov 2014, Karlsson Wang wrote: Date: Wed, 26 Nov 2014 20:53:56 +0100 From: Karlsson Wang nicklas.karls...@karlssonwang.se 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] EMC communication problem then motor start The switching is very fast because gate transistor is 10 ohm so I will increase as an intermediate solution. The problem is however still interesting because it is so common. Nicklas Karlsson One option that helps a lot on PWM drives is a common mode choke on the PWM outputs (a large ferrite bead on the 2 (DC) or 3 (AC) motor wires). One major problem with PWM outputs without slew rate limiting driving motor windings is the nearly unlimited current spike that happens at switching time because of the very fast slew rate PWM signal driving into wiring/ motor winding to ground capacitance. On Wed, 26 Nov 2014 19:34:44 + David Armstrong cncbas...@gmail.com wrote: i normaly make sure that all low voltage wiring is sheilded and watch for ground loops and vfd inputs are via filters and Balance transformers , ethernet coms are usually problem free so long as you use good cables and not the cheap Aluminium wire ones as they are using balanced paired cores , in 2 real major projects i ended up passing the low volt cables inside sheilding cut from ur67 coax On 26 November 2014 at 18:40, Karlsson Wang nicklas.karls...@karlssonwang.se wrote: I have tried with USB isolator made with Icoupler devices from analog devices on other products without luck. I am using ethernet which I think have a isolation transformer. I do not think there are any tolerances for missed packets right now. For serial communication I have tried opto couplers without with some improvement. I have also tried isolation devices from I think Texas instruments made from differential drive over two capacitors and they are great but I do not think I could use them for 100Mbit ethernet. I will increase tolerance for missed packets to be able to measure percentage of lost packets, it is not perfect but better than nothing. I will also add a common mode inductor and maybe a shielded cable. I have encountered the problem on several products so it is not isolated to just this one I built myself. Nicklas Karlsson On Wed, 26 Nov 2014 19:28:25 +0200 Marius Liebenberg mar...@mastercut.co.za wrote: I have had many problems with USB communications with motors and plasma. You can overcome these by putting an electrically isolated barrier in the usb line. There are some chips from Linear (LTM2448) that will do just that. The equipment on either end cannot be connected to the same ground or supply if you go this route. On 2014-11-26 19:07, Karlsson Wang wrote: PWM is great for efficient motor but unfortunately it is also very good at disturbing digital communication. Do anybody had any problems with the communication errors then motor start? Nicklas Karlsson -- 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] VFD trouble
A higher frequency motor will need either lower voltage or higher frequency otherwise it will overheat. If the 2kW motor is a 50Hz motor while the larger is 200kW it need a different V/F curve. Nicklas Karlsson On Wed, 26 Nov 2014 22:51:59 +0200 Viesturs Lācis viesturs.la...@gmail.com wrote: 2014-11-26 22:30 GMT+02:00 andy pugh bodge...@gmail.com: On 26 November 2014 at 18:50, Karlsson Wang nicklas.karls...@karlssonwang.se wrote: High voltage on low frequency will overheat an induction motor. I am pretty sure that Viesturs knows this. His question is why his VFD won't go above 8Hz. Yes! Thanks, Andy! I just do not understand, why it does not work with those spindle motors (I am now trying to run one motor at a time), while the same motor works with a smaller, 2kW VFD. This 11 kW VFD works with normal 0,55 kW 4-pole motor (attached to gearbox), so I do not get this. I tend to agree with Jon about the low inductivity - low inductivity means high current and that is what heats the motor up - ok, I get that. But why does 2 kW VFD works with this motor, but 11 kW does not? Are those current sensing elements less sensitive that bigger VFD cannot measure changes of current in motor as needed? Then I guess that attaching 2 motors in parallel should improve it. Ron, of course, initial phase alignment of motors would not match. Until the voltage is applied to motor and all the phases are automagically aligned. I am certain that this is not a problem here. BTW it turns on and increases the frequency as expected, when no motor is attached at all. The frequency command is provided by potentiometer on front panel, I do not intend to use any kind of analog signals or communication bus for this purpose. Ok, I will just try to make some video with my phone tomorrow to show it. 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
Re: [Emc-users] EMC communication problem then motor start
On 2014-11-26 22:12, Peter C. Wallace wrote: On Wed, 26 Nov 2014, Karlsson Wang wrote: Date: Wed, 26 Nov 2014 20:53:56 +0100 From: Karlsson Wang nicklas.karls...@karlssonwang.se 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] EMC communication problem then motor start The switching is very fast because gate transistor is 10 ohm so I will increase as an intermediate solution. The problem is however still interesting because it is so common. Nicklas Karlsson One option that helps a lot on PWM drives is a common mode choke on the PWM outputs (a large ferrite bead on the 2 (DC) or 3 (AC) motor wires). One major problem with PWM outputs without slew rate limiting driving motor windings is the nearly unlimited current spike that happens at switching time because of the very fast slew rate PWM signal driving into wiring/ motor winding to ground capacitance. Would you place the bead closer to the drive or closer to the motor? On Wed, 26 Nov 2014 19:34:44 + David Armstrong cncbas...@gmail.com wrote: i normaly make sure that all low voltage wiring is sheilded and watch for ground loops and vfd inputs are via filters and Balance transformers , ethernet coms are usually problem free so long as you use good cables and not the cheap Aluminium wire ones as they are using balanced paired cores , in 2 real major projects i ended up passing the low volt cables inside sheilding cut from ur67 coax On 26 November 2014 at 18:40, Karlsson Wang nicklas.karls...@karlssonwang.se wrote: I have tried with USB isolator made with Icoupler devices from analog devices on other products without luck. I am using ethernet which I think have a isolation transformer. I do not think there are any tolerances for missed packets right now. For serial communication I have tried opto couplers without with some improvement. I have also tried isolation devices from I think Texas instruments made from differential drive over two capacitors and they are great but I do not think I could use them for 100Mbit ethernet. I will increase tolerance for missed packets to be able to measure percentage of lost packets, it is not perfect but better than nothing. I will also add a common mode inductor and maybe a shielded cable. I have encountered the problem on several products so it is not isolated to just this one I built myself. Nicklas Karlsson On Wed, 26 Nov 2014 19:28:25 +0200 Marius Liebenberg mar...@mastercut.co.za wrote: I have had many problems with USB communications with motors and plasma. You can overcome these by putting an electrically isolated barrier in the usb line. There are some chips from Linear (LTM2448) that will do just that. The equipment on either end cannot be connected to the same ground or supply if you go this route. On 2014-11-26 19:07, Karlsson Wang wrote: PWM is great for efficient motor but unfortunately it is also very good at disturbing digital communication. Do anybody had any problems with the communication errors then motor start? Nicklas Karlsson -- 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
Re: [Emc-users] VFD trouble
2014-11-26 23:11 GMT+02:00 Karlsson Wang nicklas.karls...@karlssonwang.se: A higher frequency motor will need either lower voltage or higher frequency otherwise it will overheat. If the 2kW motor is a 50Hz motor while the larger is 200kW it need a different V/F curve. Ok, thanks, I think I understood, what you mean. I will try to RTFM to lower to voltage curve and then do some tests. 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] VFD trouble
Viesturs, I suspect that your drive is monitoring the current being sent to the motor and adjusting things automatically and failing in that regard. You may need a dumber V/Hz drive. Either that or turn off more features if that is possible via the drive parameters. I believe that the AC drives sold with the typical high freq Chinese spindle drives are very dumb. Dave On 11/26/2014 4:26 PM, Viesturs Lācis wrote: 2014-11-26 23:11 GMT+02:00 Karlsson Wang nicklas.karls...@karlssonwang.se: A higher frequency motor will need either lower voltage or higher frequency otherwise it will overheat. If the 2kW motor is a 50Hz motor while the larger is 200kW it need a different V/F curve. Ok, thanks, I think I understood, what you mean. I will try to RTFM to lower to voltage curve and then do some tests. 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 --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com -- 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] EMC communication problem then motor start
I would place the bead closer to the driver but I may be wrong. I assume fast voltage transistion is generated by the transistor so it would be better to limit the voltage derivative or in this case it will be a high frequency impedance in form of an inductor with a few turns with some space in between. I expect the tightly linded motor windings to have some parasitic impedance which I want to work around but I may be wrong. On Wed, 26 Nov 2014 23:17:48 +0200 Marius Liebenberg mar...@mastercut.co.za wrote: On 2014-11-26 22:12, Peter C. Wallace wrote: On Wed, 26 Nov 2014, Karlsson Wang wrote: Date: Wed, 26 Nov 2014 20:53:56 +0100 From: Karlsson Wang nicklas.karls...@karlssonwang.se 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] EMC communication problem then motor start The switching is very fast because gate transistor is 10 ohm so I will increase as an intermediate solution. The problem is however still interesting because it is so common. Nicklas Karlsson One option that helps a lot on PWM drives is a common mode choke on the PWM outputs (a large ferrite bead on the 2 (DC) or 3 (AC) motor wires). One major problem with PWM outputs without slew rate limiting driving motor windings is the nearly unlimited current spike that happens at switching time because of the very fast slew rate PWM signal driving into wiring/ motor winding to ground capacitance. Would you place the bead closer to the drive or closer to the motor? On Wed, 26 Nov 2014 19:34:44 + David Armstrong cncbas...@gmail.com wrote: i normaly make sure that all low voltage wiring is sheilded and watch for ground loops and vfd inputs are via filters and Balance transformers , ethernet coms are usually problem free so long as you use good cables and not the cheap Aluminium wire ones as they are using balanced paired cores , in 2 real major projects i ended up passing the low volt cables inside sheilding cut from ur67 coax On 26 November 2014 at 18:40, Karlsson Wang nicklas.karls...@karlssonwang.se wrote: I have tried with USB isolator made with Icoupler devices from analog devices on other products without luck. I am using ethernet which I think have a isolation transformer. I do not think there are any tolerances for missed packets right now. For serial communication I have tried opto couplers without with some improvement. I have also tried isolation devices from I think Texas instruments made from differential drive over two capacitors and they are great but I do not think I could use them for 100Mbit ethernet. I will increase tolerance for missed packets to be able to measure percentage of lost packets, it is not perfect but better than nothing. I will also add a common mode inductor and maybe a shielded cable. I have encountered the problem on several products so it is not isolated to just this one I built myself. Nicklas Karlsson On Wed, 26 Nov 2014 19:28:25 +0200 Marius Liebenberg mar...@mastercut.co.za wrote: I have had many problems with USB communications with motors and plasma. You can overcome these by putting an electrically isolated barrier in the usb line. There are some chips from Linear (LTM2448) that will do just that. The equipment on either end cannot be connected to the same ground or supply if you go this route. On 2014-11-26 19:07, Karlsson Wang wrote: PWM is great for efficient motor but unfortunately it is also very good at disturbing digital communication. Do anybody had any problems with the communication errors then motor start? Nicklas Karlsson -- 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
Re: [Emc-users] VFD trouble
Nicklas may be on to something here. Have you entered the nameplate data from the motor into the drive? If the drive thinks it is a 230V 50Hz motor, but it is really a 230V 200Hz motor, you have a problem. The drive will apply four times the proper voltage to the motor, which will make the motor draw a lot more current than it should. Then the drive current limit will try to prevent overcurrent by slowing down - which is why you don't get over 8Hz. Slowing down to reduce load is a perfectly reasonable thing for the drive to do, but if the problem is that the V/Hz curve is wrong, then it won't help. Can you point us at an online manual for the drive? I thougth you posted info for both the drive and the motor but I'm not seeing it when I read back in the thread. John Kasunich On Wed, Nov 26, 2014, at 04:26 PM, Viesturs Lācis wrote: 2014-11-26 23:11 GMT+02:00 Karlsson Wang nicklas.karls...@karlssonwang.se: A higher frequency motor will need either lower voltage or higher frequency otherwise it will overheat. If the 2kW motor is a 50Hz motor while the larger is 200kW it need a different V/F curve. Ok, thanks, I think I understood, what you mean. I will try to RTFM to lower to voltage curve and then do some tests. 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] VFD trouble
On Wed, Nov 26, 2014, at 05:32 PM, John Kasunich wrote: Nicklas may be on to something here. Have you entered the nameplate data from the motor into the drive? If the drive thinks it is a 230V 50Hz motor, but it is really a 230V 200Hz motor, you have a problem. The drive will apply four times the proper voltage to the motor, which will make the motor draw a lot more current than it should. Then the drive current limit will try to prevent overcurrent by slowing down - which is why you don't get over 8Hz. Slowing down to reduce load is a perfectly reasonable thing for the drive to do, but if the problem is that the V/Hz curve is wrong, then it won't help. Can you point us at an online manual for the drive? I thougth you posted info for both the drive and the motor but I'm not seeing it when I read back in the thread. John Kasunich OK, I found the message where you linked to the motor instruction manual. Parameter 01-00 MUST be set to 18. All of the other settings (0 to 17) are for 50 or 60Hz motors and will badly overvoltage a 200Hz motor. Parameter 01-02 should be set to 200Hz Parameter 01-03 should be set to 100% (assuming that the line voltage is the same as the nominal motor voltage) Parameters 01-04 thru 01-09 allow the V/Hz curve to be modified. For now, I would keep it linear. Set them as follows: 01-04 = 100Hz 01-05 = 50% 01-06 = 50Hz 01-07 = 25% 01-08 = 10Hz 01-09 = 5% Parameter 01-10 is for low speed boost to overcome IR drops in the windings. I would start by setting it to zero. If you need more low-speed torque, increase it cautiously - I would not exceed 2%. I would set 01-11 to 0.0Hz I'm not sure about 01-12 - probably would leave it at the default value, whatever that is John -- 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] encoder--?
hi i just found strange thing with motor encoder. i am doing tuneup. axis x and z has same motor - nema 34 from servo dynamic and y axis has SEM .motor. they all work ok with 2.5.4. with 2.6.4 i can see that on axis Y (SEM motor) , when click F1 (took off e-stop) than F2- power on - SEM motor start slowly rotate -- maybe noise - maybe not--- interestingly encoder number did not show any changes -- rotation of the shaft of the SEM motor. maybe encoder problem? No encoder is good!! When i click F2 - power OFF -- and start rotate axis by the hand -- encoder data start change ( on axis display). So, when power is ON encoder data disconnect from real time etc, and when Power OFF encoder data is ok and connected to display (axis). that what i see. is there explanation for this problem and how to solve it? also i tunes X and Z axis and it was ok. no such problem. when i start tuning Y i found this problem. After that same problem show up on X and Z axis. i know it is strange but that what i see thank you aram -- 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] encoder--?
On Wed, 26 Nov 2014, a k wrote: Date: Wed, 26 Nov 2014 16:16:10 -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: [Emc-users] encoder--? hi i just found strange thing with motor encoder. i am doing tuneup. axis x and z has same motor - nema 34 from servo dynamic and y axis has SEM .motor. they all work ok with 2.5.4. with 2.6.4 i can see that on axis Y (SEM motor) , when click F1 (took off e-stop) than F2- power on - SEM motor start slowly rotate -- maybe noise - maybe not--- interestingly encoder number did not show any changes -- rotation of the shaft of the SEM motor. maybe encoder problem? No encoder is good!! When i click F2 - power OFF -- and start rotate axis by the hand -- encoder data start change ( on axis display). Are you using identical hal and ini files on 2.6.4 and 2.5.4? if not, you should not really expect anything to work. If you have a working hal and ini file set on 2.5.4 you first must move these files from the configuration directory on your 2.5.4 system to the configuration directory on your 2.6.4 system Peter Wallace Mesa Electronics -- 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] encoder--?
No. I did new tune up for 2.6.4. i did not use 2.5.4 config, because when i moved from 2.2.5 to 2.5.4 tune up figures (PID) was absolutely different. so for 2.6.4 i did fresh tune up. But problem that i described - really strange. When machine power up F2 ON-- shaft of motor moves but no encoder data change on display (axis) looks like -- encoder disconnected--- and after turn power OFF -- click on F2 -- and turn shaft of the motor by hand -- and change position of shaft of the motor reflected by change figures on monitor. that is strange but that what i have . On Wed, Nov 26, 2014 at 4:52 PM, Peter C. Wallace p...@mesanet.com wrote: On Wed, 26 Nov 2014, a k wrote: Date: Wed, 26 Nov 2014 16:16:10 -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: [Emc-users] encoder--? hi i just found strange thing with motor encoder. i am doing tuneup. axis x and z has same motor - nema 34 from servo dynamic and y axis has SEM .motor. they all work ok with 2.5.4. with 2.6.4 i can see that on axis Y (SEM motor) , when click F1 (took off e-stop) than F2- power on - SEM motor start slowly rotate -- maybe noise - maybe not--- interestingly encoder number did not show any changes -- rotation of the shaft of the SEM motor. maybe encoder problem? No encoder is good!! When i click F2 - power OFF -- and start rotate axis by the hand -- encoder data start change ( on axis display). Are you using identical hal and ini files on 2.6.4 and 2.5.4? if not, you should not really expect anything to work. If you have a working hal and ini file set on 2.5.4 you first must move these files from the configuration directory on your 2.5.4 system to the configuration directory on your 2.6.4 system Peter Wallace Mesa Electronics -- 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] encoder--?
On Wed, 26 Nov 2014, a k wrote: Date: Wed, 26 Nov 2014 17:22:13 -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] encoder--? No. I did new tune up for 2.6.4. i did not use 2.5.4 config, because when i moved from 2.2.5 to 2.5.4 tune up figures (PID) was absolutely different. so for 2.6.4 i did fresh tune up. Please start with a working configuration (use your 2.5.4 configuration, it should work identically with 2.6.4) Without a known starting point (and the sample configurations are not guaranteed to be stable) This is a waste of time Peter Wallace Mesa Electronics -- 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] VFD trouble
On 11/26/2014 5:59 AM, Viesturs Lācis wrote: Yes. Is there a way to run them in series? Currently I am trying to get one motor to work - still the same issue of VFD not going higher than 8-9 hz. In series each motor will see 1/2 the voltage. In parallel they get the same voltage but only 1/2 the amperage. As others have stated you *can not use* any feedback sensing such as sensorless vector. IT WILL NOT WORK with two motors on a single VFD. Study the VFD's manual to find how to turn off all the sensing and feedback functions. You probably won't even be able to use the VFD's overcurrent protection. Put a circuit breaker in line to each motor. Yet another use case for a dead simple VFD or phase converter with next to zero fancy functions, which if such is available costs more than the VFDs with 100+ configurable settings. Pay more to NOT get things you do not want or need. :P What I'd like to have in a solid state phase converter. 1. Not variable. Just a switch or jumper for 50/60Hz. Possibly with the option to convert between those two frequencies in case of RPM critical equipment. 2. No ramp up/down. Or a fixed time ramp with switch or jumper to disable. 3. Remote switch terminals with switch or jumper to configure for start/stop or FWD/Stop/REV switches. Stop also connects to E-stop circuit. Make the voltage right for computer/digital control. TTL level? 3.3V? Whatever is required. Perhaps a switch or jumper to select. 4. Display, one red LED and one green LED. Solid green = All good. Solid red = uh-oh. Press and hold the built in Run/Stop and Reset buttons to blink trouble codes that have a chart printed on or molded into the housing. Dead simple, caveman easy to install. Flip 4 or 5 switches, connect wires and done. Not one gee whiz look what this can do feature most people will never ever use because their old machine or modern day new build does not *need* variable speed. On my Monarch 12CK with 1940's vintage GE 3HP motor I never vary the speed from 60Hz but had to deal with a PITA to get the settings right TECO VFD. Tweak and adjust over and over until it would soften the start just right to quit popping the overcurrent protection. Couldn't get anywhere with it until I switched it from sensorless vector to Volts/Hertz mode. At least it saves the settings in non-volatile memory so I can shut off the power when the lathe isn't in use. --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com -- 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] VFD trouble
Since nearly all the features are just firmware in the VFD, eliminating them wouldn't save any money. Every VFD I've worked with comes out of the box pre-set as simply as you indicate, just connect it to a normal three phase motor, power and press the run button and you'll get something like a 2 second ramp up to 60Hz (US) and that's it. Press the stop button and it will stop with a 2 sec ramp down. You don't have to change any settings unless you want to do something different like set it for 2 or 3 wire remote control, external 0-10V speed control, etc. In the case of trying to run something like a high spped spindle you will need to change a lot of settings, but not for ordinary motor operation. --Original Mail-- From: Gregg Eshelman g_ala...@yahoo.com To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Wed, 26 Nov 2014 19:35:45 -0700 Subject: Re: [Emc-users] VFD trouble On 11/26/2014 5:59 AM, Viesturs LÄcis wrote: Yes. Is there a way to run them in series? Currently I am trying to get one motor to work - still the same issue of VFD not going higher than 8-9 hz. In series each motor will see 1/2 the voltage. In parallel they get the same voltage but only 1/2 the amperage. As others have stated you *can not use* any feedback sensing such as sensorless vector. IT WILL NOT WORK with two motors on a single VFD. Study the VFD's manual to find how to turn off all the sensing and feedback functions. You probably won't even be able to use the VFD's overcurrent protection. Put a circuit breaker in line to each motor. Yet another use case for a dead simple VFD or phase converter with next to zero fancy functions, which if such is available costs more than the VFDs with 100+ configurable settings. Pay more to NOT get things you do not want or need. :P What I'd like to have in a solid state phase converter. 1. Not variable. Just a switch or jumper for 50/60Hz. Possibly with the option to convert between those two frequencies in case of RPM critical equipment. 2. No ramp up/down. Or a fixed time ramp with switch or jumper to disable. 3. Remote switch terminals with switch or jumper to configure for start/stop or FWD/Stop/REV switches. Stop also connects to E-stop circuit. Make the voltage right for computer/digital control. TTL level? 3.3V? Whatever is required. Perhaps a switch or jumper to select. 4. Display, one red LED and one green LED. Solid green = All good. Solid red = uh-oh. Press and hold the built in Run/Stop and Reset buttons to blink trouble codes that have a chart printed on or molded into the housing. Dead simple, caveman easy to install. Flip 4 or 5 switches, connect wires and done. Not one gee whiz look what this can do feature most people will never ever use because their old machine or modern day new build does not *need* variable speed. On my Monarch 12CK with 1940's vintage GE 3HP motor I never vary the speed from 60Hz but had to deal with a PITA to get the settings right TECO VFD. Tweak and adjust over and over until it would soften the start just right to quit popping the overcurrent protection. Couldn't get anywhere with it until I switched it from sensorless vector to Volts/Hertz mode. At least it saves the settings in non-volatile memory so I can shut off the power when the lathe isn't in use. --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com -- 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] VFD trouble
On Wed, Nov 26, 2014 at 10:04 PM, p...@wpnet.us wrote: Put a circuit breaker in line to each motor. I think this is bad advice---VFDs react badly to interruption in the VFD-motor circuit, especially at high currents. You should rely on VFD's current limits instead. -- 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] LCNC VS Machinekit JWP
On 11/26/2014 10:12 AM, Niemand Sonst wrote: A user must be able to push PAUSE, than take his jog Wheel or even the jog button from the GUI, move around like he wish and if he push resume, the machine should start at the position he paused the program. What would be extra nice is to have it remember the path taken during the jog moves then reverse that on resume so it won't hit anything with the tool on the way back. --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com -- 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] VFD trouble
Not when running multiple motors from a single VFD. I've read whitepapers from VFD manufacturers showing sample configurations with something like eight motors on a single large VFD, each with it's own OCP. I think the days of loose motor connections blowing up a VFD are in the past and current designs are more resilient anyway. --Original Mail-- From: Przemek Klosowski przemek.klosow...@gmail.com To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Wed, 26 Nov 2014 22:12:32 -0500 Subject: Re: [Emc-users] VFD trouble On Wed, Nov 26, 2014 at 10:04 PM, p...@wpnet.us wrote: Put a circuit breaker in line to each motor. I think this is bad advice---VFDs react badly to interruption in the VFD-motor circuit, especially at high currents. You should rely on VFD's current limits instead. -- 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] Semi OT: Rotary encoder Z pulse alternatives
On 11/26/2014 10:32 AM, Gene Heskett wrote: On Wednesday 26 November 2014 02:56:00 Gregg Eshelman did opine Also have a look at vehicle speed sensors on the outputs of transmissions. In the later 90's General Motors went to a 40 tooth reluctor and a Hall effect sensor on the output shaft of the 700R4 transmission, also known as the 4L60 or 4L60E (E for Electronic control). The reluctor is removable from the shaft and has a pretty good sized inside diameter. General Motors part number 24202711 for the reluctor ring. The sensor is part number 8673299 but other Hall effect sensors should work. Got your calipers handy Gregg? How big is it, ID, OD and thickness. I am thinking it might be possible to shoehorn it into what is euphemistically called the head on my micro mill. If I don't junk it. In any event, this gizmo could come in handy whatever I do. I'd go measure it, but I'm 25 miles from the nearest guvmnt motors dealer. That whole shebang may leave as I am about worn out replacing its plastic gears anyway. Noisy, sloppy crap. There was a belt drive conversion kit for the Micro Mill. http://www.littlemachineshop.com/products/product_view.php?ProductID=3488 For the Mini Mill there's a belt conversion and there's metal gears available for the mill and the 7x lathes. --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com -- 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] encoder--?
On Wednesday 26 November 2014 20:22:13 a k did opine And Gene did reply: No. I did new tune up for 2.6.4. i did not use 2.5.4 config, because when i moved from 2.2.5 to 2.5.4 tune up figures (PID) was absolutely different. so for 2.6.4 i did fresh tune up. From 2.2.5 to 2.5.4 was one hell of a jump, representing around 4 or 5 years worth of refinements in how it works, including some changes in the hal syntax to something that actually made sense. But from 2.5.4 to 2.6.4, any changes in the .ini or .hal file in the 2.6.4/config directory are very very small. But you have to do it Your way instead of at least trying what these knowledgeable people are telling you to do. Its as if anything they ask you to do becomes the last thing that will not get done because you've run out of patience for the day, and by tomorrow you will have totally forgotten it. Are we/they talking to a fencepost with dead batteries in its hearing aids? The results we are getting from telling you to do something are very discouraging WHEN YOU WON'T DO IT! These kind people really DO know what they are talking about, and if you will just do as they say, you will have a working machine many times quicker than you will if you just go charging in and change something that in several cases here as I've watched this, that you WILL have to go back and fix later because you broke it worse. But problem that i described - really strange. When machine power up F2 ON-- shaft of motor moves but no encoder data change on display (axis) looks like -- encoder disconnected--- and after turn power OFF -- click on F2 -- and turn shaft of the motor by hand -- and change position of shaft of the motor reflected by change figures on monitor. that is strange but that what i have . On Wed, Nov 26, 2014 at 4:52 PM, Peter C. Wallace p...@mesanet.com wrote: On Wed, 26 Nov 2014, a k wrote: Date: Wed, 26 Nov 2014 16:16:10 -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: [Emc-users] encoder--? hi i just found strange thing with motor encoder. i am doing tuneup. axis x and z has same motor - nema 34 from servo dynamic and y axis has SEM .motor. they all work ok with 2.5.4. with 2.6.4 i can see that on axis Y (SEM motor) , when click F1 (took off e-stop) than F2- power on - SEM motor start slowly rotate -- maybe noise - maybe not--- interestingly encoder number did not show any changes -- rotation of the shaft of the SEM motor. maybe encoder problem? No encoder is good!! When i click F2 - power OFF -- and start rotate axis by the hand -- encoder data start change ( on axis display). Are you using identical hal and ini files on 2.6.4 and 2.5.4? if not, you should not really expect anything to work. If you have a working hal and ini file set on 2.5.4 you first must move these files from the configuration directory on your 2.5.4 system to the configuration directory on your 2.6.4 system I wouldn't move them, but I sure would copy them to the new 2.6.4/config directory. And I think that is precisely what Peter meant. Peter Wallace Mesa Electronics - - 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 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
Re: [Emc-users] VFD trouble
On 11/26/2014 8:16 PM, p...@wpnet.us wrote: Not when running multiple motors from a single VFD. I've read whitepapers from VFD manufacturers showing sample configurations with something like eight motors on a single large VFD, each with it's own OCP. I think the days of loose motor connections blowing up a VFD are in the past and current designs are more resilient anyway. What they don't work with is magnetic contactors. Those need pure and smooth, full frequency power to kick in. While first trying out the VFD on the Monarch, I had to hold the contactor closed with a wooden paint stir stick until it got up to speed. Then it would work until stopping the motor. As it dropped below around 50Hz the contactor would open. So no more contactor in the circuit. The VFD is wired directly to the motor. --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com -- 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] Semi OT: Rotary encoder Z pulse alternatives
On Wednesday 26 November 2014 23:11:00 Gregg Eshelman did opine And Gene did reply: On 11/26/2014 10:32 AM, Gene Heskett wrote: On Wednesday 26 November 2014 02:56:00 Gregg Eshelman did opine Also have a look at vehicle speed sensors on the outputs of transmissions. In the later 90's General Motors went to a 40 tooth reluctor and a Hall effect sensor on the output shaft of the 700R4 transmission, also known as the 4L60 or 4L60E (E for Electronic control). The reluctor is removable from the shaft and has a pretty good sized inside diameter. General Motors part number 24202711 for the reluctor ring. The sensor is part number 8673299 but other Hall effect sensors should work. Got your calipers handy Gregg? How big is it, ID, OD and thickness. I am thinking it might be possible to shoehorn it into what is euphemistically called the head on my micro mill. If I don't junk it. In any event, this gizmo could come in handy whatever I do. I'd go measure it, but I'm 25 miles from the nearest guvmnt motors dealer. That whole shebang may leave as I am about worn out replacing its plastic gears anyway. Noisy, sloppy crap. There was a belt drive conversion kit for the Micro Mill. http://www.littlemachineshop.com/products/product_view.php?ProductID=34 88 I have been signed up to be notified when its available again for 7 or 8 years. For the Mini Mill there's a belt conversion and there's metal gears available for the mill and the 7x lathes. Metal, for the micro-mill? URL? Chris has metal change gears for the lathe, but I don't recall seeing any for the spindle internals on his site. Is my mouse not aimed correctly? I did find a site where some fellow made his own, but he put the tach so v-belt slippage could affect it. I layshaft idea seems to be a good one on that site, but I'd druther have 3 sets of matching timing pulleys using an 8 or 10mm belt that one could slide the drive forward to slacken, and move the belt to the next pair of timing pulleys up or down, then lever the motor and layshaft back to the rear to tension the timing belt. But I found the timing pulleys to be awful pricey. And because my bolt for the z drive is about 2 in front of the post, the motor will still need to be mounted off to the side. One of those projects that will get done as the time becomes available. Thanks Gregg. 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] Semi OT: Rotary encoder Z pulse alternatives
On 11/26/2014 11:12 PM, Gene Heskett wrote: On Wednesday 26 November 2014 23:11:00 Gregg Eshelman did opine For the Mini Mill there's a belt conversion and there's metal gears available for the mill and the 7x lathes. Metal, for the micro-mill? URL? Chris has metal change gears for the lathe, but I don't recall seeing any for the spindle internals on his site. Is my mouse not aimed correctly? Under conversion kits. No metal gears for the Micro, just for the mini mill and 7x lathe. Since it's apparent the belt conversion for the Micro Mill isn't coming back, anyone who wants that will have to build their own. Are the plastic Micro mill gears standard metric or are they some proprietary just about right dimensions? If they're something standard then a call to Boston Gear should get you something you can modify to replace the originals. At least you know they can't be the unobtanium 14 DP. --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com -- 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
