[Emc-users] Crashing atom box
Well, its crashed 2 more times today, after I took it apart, no convex topped caps anyplace, including the PSU, which is an ATX P4 rated at 300 watts. Hugely more than that box needs in its wildest dreams. 75 watts would spin it all without breaking a sweat. I thought perhaps I had found it when I attempted to remove what looked like a hair about 3 long, wedged between the motherboard and the PS-2 connectors, but which on closer examination, was actually a steel shaving about the size of a hair but flattened, I assume from the punch presses work on stamping out the chassis. But removing it made no diff, so when it crashed while I was editing a program to carve the outside of the taperlock bushing, I said screw it, called Directron in Texas where I had purchased it, but they were unable to identify it. I did find a supply that looked like it would fit, so I popped over to amazon its on the way for 26 bucks. If that doesn't fix it, what is the next best mobo to put in this mini-atx P4 shoebox? This one was one of the D-525MW boards. 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 -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On Friday 01 May 2015 15:08:45 Mark Wendt wrote: On Fri, May 1, 2015 at 12:53 PM, Gene Heskett ghesk...@wdtv.com wrote: Our bullfrogs here in MD are bowled over pretty easily too. ;-) I am glad you said that. If I had, there would have been a contract out on me. [...] I'm kinda partial to the Tek 7000 mainframe series. There are tons of plugins besides the horizontal and vertical amps from counters, to curve tracers to spectrum analyzers to you name it. Yeah, but you can't put it, a probe, and a usb cable to charge it with, along with the DSO-1, in your polo shirt pocket. ;-) 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 -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Replacing unobtanium circuits Re: Computer crashing. Re: micro-v belts, smaller
On 5/1/2015 10:11 AM, Mark Wendt wrote: I think I probably have one, but so far I like it a lot. Partly because it is small enough to transport by motorcycle. It's a 336 (picture of one here: http://www.komu.jp/DSCN0837B111.jpg ) with on-screen menus and storage and all sorts of other things that must have cost a fortune when new. Cute little scope. I was actually thinking of the 2400 series which has a chip called out on the schematics as U800. Heat degradation does most of those in. The guys on the Tekscopes mailing lists have taken to installing computer heat sinks on them to increase their longevity. About the only place you can get the chips is from other parts queens. For one Hewlett Packard 8007A pulse generator a broken and irreplaceable pulse shaper chip was reverse engineered and a scratch built circuit made to replace it. http://hackaday.com/2014/04/21/rebuilding-a-custom-ic-saves-hp-pulse-generator/ --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On Friday 01 May 2015 06:15:02 Mark Wendt wrote: On Fri, May 1, 2015 at 6:07 AM, Gene Heskett ghesk...@wdtv.com wrote: On Friday 01 May 2015 05:15:24 Mark Wendt wrote: On Fri, May 1, 2015 at 12:52 AM, Gene Heskett ghesk...@wdtv.com wrote: snippage Now we have to drag out a scope to look at such stuff. It is even better at finding that stuff, but most look at a scope go whazzat thing?, and have no clue even when you tell them what its doing. Get 'em one a these - Ebay #171772965816 ;-) Mark That one is out of calibtration by now, and uncalibratable because the input attenuator parts are out of stock. I will never touch a 20 yo Tek again after my experience trying to get them to warranty the tube that was clearly defective in a 22xx, 100mhz dual trace when it was new in 1984. I finally bought a crt and put it in myself. Long since replaced with a good Hitachi. 30 years later its still in pretty close calibration. Getting scope poor around here though, I bought a DS0-1 a couple years back, already have a Hitachi V1065, 100 mhz dual trace analog and just last fall bought a dual trace 100mhz digital. For 1 shot storage, its amazing. Cheers, Gene Heskett Never say never. I own a set of them there input attenuators, as well as almost all the gear required to calibration most Tek analog scopes, up to, and including the 7104 1 GHz mainframe. How deep are your pockets? When that 2235 was about 7 years old, I found the input attenuator wasn't anywhere near the 1,2,5 sequence on 1 channel, off on both but wyyy off on one, as it had been left for days looking at a 285 volt dc level, with 150 volts of video on it, looking for an intermittent, which when it finaly showed itself, was a bad .5 uf paper capacitor that was opening up. Called tek after having verified the R's on that fawncy ceramic plate were sick (but not discolored in the least), found that it was past the federally mandated 5 years since it went out of production for parts availability, that yes they still had one left, no claims that it was good, and they wanted $1750 from me for the privilege of testing it when I installed it. I sent it to the transmitter forever, and spent that money and another thou on a Hitachi v1085, which 20 some years later still self tests itself at powerup and remains in calibration yet today. The pushbuttons aren't getting as much use today so they are a bit flaky, but then so are the buttons on my 30 yo V1065, whose computer isn't near as smart as the later version. And there are quite a few shops out there that will cal the scopes with certs if you require them too. Which is why I asked if you had really deep pockets. We have been frugal so I could do it, once. But I would never hear the end of it for paying 3 or 4 grand to calibrate a 99 dollar (+ ship, that thing must weigh 35 lbs) ebay scope. For under a $500 bill you can own a 2ghz digital sampler that masquerades as a 200Mhz, dual trace scope, with a full color display 2x the size of the teks, and 10x brighter. And weighs 2 lbs change. The beginning of the end for tek was when they went public, then bought, or was bought, by the Grass Valley Group, both of which made top of the line test and production video gear IN THEIR DAY. Then they rested on their 1980 laurals. Today, they are both history, having been surpassed in the night by people whose names you may never have heard of, but who WILL give you the state of the art tools you need today, at a reasonable asking price. I gotta say it, Mark, that 2015 morning coffee smells pretty darned good from here. The 1985 version? Gah, its hopelessly burnt sitting on the back burner that long. 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 -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] micro-v belts, smaller
On 5/1/2015 10:08 AM, andy pugh wrote: On 1 May 2015 at 14:34, John Kasunich jmkasun...@fastmail.fm wrote: Making a poly-V belt pulley is simple lathe work. Making a timing belt pulley means cutting the teeth. Much more complicated. You just need to know the right people: https://www.youtube.com/watch?v=ltmZrDrt6pQ Are you taking orders? I wanted to order two custom HTD pulleys last year - about October time frame.Standard pulleys were not available that could be re-machined to work. One was about 5 in diameter, the other about 2 1/2 diameter. There is a custom pulley manufacturer in Laporte, Indiana, USA about two hours from me and I sent them the specs and I got a quote back for about $450 for both of them. The lead time to get the pulleys was about 6 weeks. My customer was anxious (he was anxious about everything) and money was not an issue. So I called the manufacturer and asked them if the pulleys could be made in less time - and that I was willing to pay a lot more. They called back and said no, they could not be made in less than 6 weeks no matter what the cost! Machinists (not machine operators) are in short supply in the Midwest USA and that seems to be creating situations like this. I gave up on the custom pulleys and ended up using twin V belts which was a lot less desirable. Dave --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] micro-v belts, smaller
On 1 May 2015 at 14:34, John Kasunich jmkasun...@fastmail.fm wrote: Making a poly-V belt pulley is simple lathe work. Making a timing belt pulley means cutting the teeth. Much more complicated. You just need to know the right people: https://www.youtube.com/watch?v=ltmZrDrt6pQ -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] micro-v belts, smaller
On 4/30/2015 7:51 PM, Gene Heskett wrote: On Thursday 30 April 2015 15:52:44 Dave Cole wrote: Micro V belts are apparently targeted at OEMs like car manufacturers who can make their own pulleys and order thousands of custom spec belts. A friend of mine tried to buy a setup for a custom machine and nothing was off the shelf and the selection of belt lengths was very limited. He could get a belt length that would work but the pulleys were a custom order - expensive and 6 week delivery. I'd go with V belts, HTD or Timing belts and forget about Micro V belts unless you happen onto the proper parts. Dave Ah, Dave? Did you miss the memo? We are used to making our own special parts. Making the pulley's doesn't seem like a particularly hard thing to do, so that is what I am about. But I have a PITA in the machine that runs my lathe, its recently turned into a crashomatic, with uptimes of about an hour! And since it is an nfs mount, when it crashes, it locks up the rest of the machines that are mounting it. Thats the PITA problem. And IMO a damned bug in nsf4. I think I am going to have to find another PSU for it, there is no other rhyme or reason for it to go away in the middle of a job, like it has done 3x today. I padded up to the shop tapped the reset button just now so I'll be good for maybe an hour. But I also just commented that line out of fstab on this machine until such time as I get that one fixed. Hi Gene, Got the memo but other needs have taken precedence.. such as bringing home the bacon etc. Ya know... not everyone has the luxury of retirement yet.. ;-) Seriously, I thought that your lathe was broke and you needed the belt and pulleys to fix it! That would create a catch-22 situation if you had to machine the pulleys for the machine you needed to repair... although perhaps a crank could be fitted.. ;-) Dave --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] micro-v belts, smaller
On 1 May 2015 at 16:37, Dave Cole linuxcncro...@gmail.com wrote: https://www.youtube.com/watch?v=ltmZrDrt6pQ Are you taking orders? Send the blanks, I can put teeth on. But only metric T5 at the moment. If you can see the belt profile you want here then I can do it and keep the hob as payment. http://www.ebay.co.uk/sch/m.html?_odkw=_ssn=tony4cats_nkw=hob -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] micro-v belts, smaller
On Friday 01 May 2015 07:13:41 andy pugh wrote: On 1 May 2015 at 10:02, Gene Heskett ghesk...@wdtv.com wrote: I wasn't looking for timing belts Roland. I backed up but never did find any micro-v or polygroove types. And no clue what sort of money denomination they ask, but with starting prices ranging upwards from 96 of whatever it is, I backed away quickly. Rand will look expensive. £ will look cheap: http://uk.rs-online.com/web/p/timing-belts/4749507/ But they don't do Poly-V. Given that you can't find the belt and you have to make the pulleys, why not use a toothed belt? Cost of toothed pulleys? 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 -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] micro-v belts, smaller
On Friday 01 May 2015 06:25:03 Les Newell wrote: I just ran the numbers and for the dimensions you gave the belt length is almost exactly 375mm. For those sizes I'd use a HTD toothed belt. Pulleys are fairly cheap and belts are easily available in wide range of sizes. Well, the smaller of the two pulley sizes is subject to leaving enough room for the taper-locks locking and jacking screws, which I intend to install from the larger pulley side. The smaller pulley won't even be cut until the taper-lock hub is made, and a stub shaft made that is the same size as the spindle shaft, and the whole assembly is spinning on that dummy shaft. Depending on available material for the bolt circle, the small one could be even smaller than 40mm. 35mm would give a 1/2 down, or a 1/2 up. It remains to be determined if the bearings can go to 10k rpms. I can see the thermal growth of something during a long session of pcb etching, its so obvious I break into the code stream a couple times in a long run and rezero the z at copper contact. The HTD is a cogged timing belt? Yes. That probably takes the $ up by 10x as I cannot do a cogged pulley that accurately would have to buy them. And one thing noticeable absent in any of the pulley listings is two sizes for a speed changer on one pulley. I can cut the polygrove/micro-v stuff right here for nothing but my time. One page even claimed it could run above 500 rpms, but I'll be doing 20x that as long as the bearings don't explode. It is a pity your belt is so short. Automotive poly-V belts are available in roughly 5mm increments from 600mm upwards, widths from 3 to 8 ribs. Just for reference the part numbers for PK series poly-V belts are easy to work out. For instance a 3PK0750 belt would be 3 rib, 750mm pitch circumference (cut length). So as projected, I would need a 3PK0375. Sounds about right. I came to that same conclusion. Too bad this isn't my GMC pickup, but that belt is also 50x the material and north of $50/copy, where this stuff is piddly. :( Thanks Les. How is your headboard carver doing these days? Now, I'd better go see if there are any fat caps in that box. And get a part # for it if not. Something has to be going doofy. That would give me a good excuse to exersize my new soldering station. The iron quit in tha 18 month old one and the outfit in star city Nebraska won't sell me another control board. 1 year warranty. Ass holes, the whole lot of them. But I got one just as capable from Amazon for 1/2 the bucks. 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 -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] micro-v belts, smaller
On Friday 01 May 2015 09:34:02 John Kasunich wrote: On Fri, May 1, 2015, at 07:13 AM, andy pugh wrote: Given that you can't find the belt and you have to make the pulleys, why not use a toothed belt? Making a poly-V belt pulley is simple lathe work. Making a timing belt pulley means cutting the teeth. Much more complicated. He could probably buy a timing belt pulley, but since its for a lathe spindle it probably needs a larger-than-normal bore. So it's likely to need re-worked anyway. Naw, in this case John, its the spindle in my toy mill, originally a micromill. Motor shaft is 8mm, spindle shaft is 20mm OD. The gears are about shot, rattling to beat the band, and I have this 400 watt motor I took out of the toy lathe. Might as well use it. The lathes spindle is another story. One that may be fixed with a bigger machine. There is a 100+ yo Porter sitting out in the weather right here in town I can have to 5 pix of Ben, but the motor mount looks like it needs a 40 horse to turn it. Some bed cleanup, and 3 grand in screws might make it a good tool again. 14 chuck, about an 8 foot bed. No space for anything like that though without changing the number on the front of the house AND the street name. My pockets are not THAT deep. 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 -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On 4/30/2015 10:52 PM, Gene Heskett wrote: There's a 5 volt line not used on newer ATX power supplies so if you have a tester and it says that line is bad, look to see if the wire is not in the connector. I think the drive logic, in both drives, (rotating magnetic, and rotating optical) needs 5 volts in these boxes, so I would expect it to be present and accounted for. Unless I missed the memo... Here's the memo. :) http://www.tomshardware.com/forum/337378-28-white-wire-missing --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] NFS mount lockup [Was: micro-v belts, smaller]
On 30.04.15 19:51, Gene Heskett wrote: But I have a PITA in the machine that runs my lathe, its recently turned into a crashomatic, with uptimes of about an hour! And since it is an nfs mount, when it crashes, it locks up the rest of the machines that are mounting it. Thats the PITA problem. And IMO a damned bug in nsf4. Gene, if the problem is not just loss of access (unavoidable once the NFS exporter has crashed), but the lock-up you describe, then changing the NFS mount from hard to soft should fix that. (man nfs says data integrity may suffer if connection is not over TCP-IP, but I've never noticed, admittedly with now 30-year old NFS, under Solaris) That manpage does, though, say: Using the intr option is preferred to using the soft option because it is significantly less likely to result in data corruption. But then it goes on to say it isn't much use after kernel 2.6.25. Looks like the developers don't use NFS much. In the old days, I used soft mounts to allow a server farm to come up despite NFS cross-mounts. With hard mounts, and A needing B, and B needing A, they could never come up. Using a soft mount on one side let them boot, at the cost of a manual NFS mount a little later. (Soft mounts on both sides could necessitate two manual NFS mounts) Erik -- There's no obfuscated Perl contest because it's pointless. -Jeff Polk -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Fwd: Computer crashing. Re: micro-v belts, smaller
Not sure if this went through the first time. On Fri, May 1, 2015 at 11:08 AM, Gene Heskett ghesk...@wdtv.com wrote: Never say never. I own a set of them there input attenuators, as well as almost all the gear required to calibration most Tek analog scopes, up to, and including the 7104 1 GHz mainframe. How deep are your pockets? When that 2235 was about 7 years old, I found the input attenuator wasn't anywhere near the 1,2,5 sequence on 1 channel, off on both but wyyy off on one, as it had been left for days looking at a 285 volt dc level, with 150 volts of video on it, looking for an intermittent, which when it finaly showed itself, was a bad .5 uf paper capacitor that was opening up. Called tek after having verified the R's on that fawncy ceramic plate were sick (but not discolored in the least), found that it was past the federally mandated 5 years since it went out of production for parts availability, that yes they still had one left, no claims that it was good, and they wanted $1750 from me for the privilege of testing it when I installed it. I sent it to the transmitter forever, and spent that money and another thou on a Hitachi v1085, which 20 some years later still self tests itself at powerup and remains in calibration yet today. The pushbuttons aren't getting as much use today so they are a bit flaky, but then so are the buttons on my 30 yo V1065, whose computer isn't near as smart as the later version. I'm talking about guys like me out there that collect vintage Tek stuff relatively inexpensively from Ebay, hamfests, Craigslist and other sources, and they are malfunctioning, repair them. And then run them through the performance checks and calibrate if necessary. My calibrations don't carry certs, but the scope will end up close enough for gummint work, or for that matter, just about any shop work you or I would do. And then there are the amateur metrologists out there who have full-up cal labs in their shop, called the volt-nuts and time-nuts (I unashamedly admit to being on both those mailing lists... ;-) ) will cal your measuring equipment for you. I've got close to a dozen different Tek scopes from an SC502 TM50x mainframe plugin up to a 7854 four-bay mainframe which does waveform calculations and has digital storage. All are quite repairable should anything break. There are a few Tek products with almost unobtanium proprietary chips in them, but I avoid those. None of the scopes I have have those parts. And there are quite a few shops out there that will cal the scopes with certs if you require them too. Which is why I asked if you had really deep pockets. We have been frugal so I could do it, once. But I would never hear the end of it for paying 3 or 4 grand to calibrate a 99 dollar (+ ship, that thing must weigh 35 lbs) ebay scope. For under a $500 bill you can own a 2ghz digital sampler that masquerades as a 200Mhz, dual trace scope, with a full color display 2x the size of the teks, and 10x brighter. And weighs 2 lbs change. No need for deep pockets, as I mentioned above. They aren't Tek. They're guys like me that enjoy playing around with the vintage scopes, and have built labs for repair and calibration. As I mentioned before, I can repair and calibrate a scope close enough (without certs) for pretty much any use I, or just about anybody else on this list would have. We aren't running NIST labs, creating satellites, or stuff like that, though as I mentioned previously, there are guys out there that can cal your gear and back it up with NIST certs. The beginning of the end for tek was when they went public, then bought, or was bought, by the Grass Valley Group, both of which made top of the line test and production video gear IN THEIR DAY. Then they rested on their 1980 laurals. Today, they are both history, having been surpassed in the night by people whose names you may never have heard of, but who WILL give you the state of the art tools you need today, at a reasonable asking price. I gotta say it, Mark, that 2015 morning coffee smells pretty darned good from here. The 1985 version? Gah, its hopelessly burnt sitting on the back burner that long. So, perhaps there's a spot in your shop that requires 20 GHz+ bandwidth digital scopes, VNA's, spectrum analyzers and such that cost well over $20k a piece? I gotta see your shop! ;-) Let's face it. A 500 MHz analog scope is way overkill for pretty much anything you, I or anyone else on this list will do in their shops. Cheers, Gene Heskett Cheers, Mark -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight.
Re: [Emc-users] micro-v belts, smaller
Yes, HTDs are cogged tooth pulleys. They are similar to timing belt pulleys except the teeth are rounded. GT2 belt pulleys are HTD like but they are a newer, improved design. Dave On 5/1/2015 11:44 AM, Gene Heskett wrote: On Friday 01 May 2015 06:25:03 Les Newell wrote: I just ran the numbers and for the dimensions you gave the belt length is almost exactly 375mm. For those sizes I'd use a HTD toothed belt. Pulleys are fairly cheap and belts are easily available in wide range of sizes. Well, the smaller of the two pulley sizes is subject to leaving enough room for the taper-locks locking and jacking screws, which I intend to install from the larger pulley side. The smaller pulley won't even be cut until the taper-lock hub is made, and a stub shaft made that is the same size as the spindle shaft, and the whole assembly is spinning on that dummy shaft. Depending on available material for the bolt circle, the small one could be even smaller than 40mm. 35mm would give a 1/2 down, or a 1/2 up. It remains to be determined if the bearings can go to 10k rpms. I can see the thermal growth of something during a long session of pcb etching, its so obvious I break into the code stream a couple times in a long run and rezero the z at copper contact. The HTD is a cogged timing belt? Yes. That probably takes the $ up by 10x as I cannot do a cogged pulley that accurately would have to buy them. And one thing noticeable absent in any of the pulley listings is two sizes for a speed changer on one pulley. I can cut the polygrove/micro-v stuff right here for nothing but my time. One page even claimed it could run above 500 rpms, but I'll be doing 20x that as long as the bearings don't explode. It is a pity your belt is so short. Automotive poly-V belts are available in roughly 5mm increments from 600mm upwards, widths from 3 to 8 ribs. Just for reference the part numbers for PK series poly-V belts are easy to work out. For instance a 3PK0750 belt would be 3 rib, 750mm pitch circumference (cut length). So as projected, I would need a 3PK0375. Sounds about right. I came to that same conclusion. Too bad this isn't my GMC pickup, but that belt is also 50x the material and north of $50/copy, where this stuff is piddly. :( Thanks Les. How is your headboard carver doing these days? Now, I'd better go see if there are any fat caps in that box. And get a part # for it if not. Something has to be going doofy. That would give me a good excuse to exersize my new soldering station. The iron quit in tha 18 month old one and the outfit in star city Nebraska won't sell me another control board. 1 year warranty. Ass holes, the whole lot of them. But I got one just as capable from Amazon for 1/2 the bucks. Cheers, Gene Heskett --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] micro-v belts, smaller
On Friday 01 May 2015 12:03:59 Dave Cole wrote: Yes, HTDs are cogged tooth pulleys. They are similar to timing belt pulleys except the teeth are rounded. GT2 belt pulleys are HTD like but they are a newer, improved design. Dave Both of which are overpriced and accuracy overkill for this job. I am not driving this with a stepper where you supposedly know where it is. A 2% slippage will be handled by the computer without even sending you an email. :) Thanks Dave. 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 -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On Fri, May 1, 2015 at 12:06 PM, andy pugh bodge...@gmail.com wrote: On 1 May 2015 at 17:00, Mark Wendt wendt.m...@gmail.com wrote: There are a few Tek products with almost unobtanium proprietary chips in them, but I avoid those. I think I probably have one, but so far I like it a lot. Partly because it is small enough to transport by motorcycle. It's a 336 (picture of one here: http://www.komu.jp/DSCN0837B111.jpg ) with on-screen menus and storage and all sorts of other things that must have cost a fortune when new. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto Cute little scope. I was actually thinking of the 2400 series which has a chip called out on the schematics as U800. Heat degradation does most of those in. The guys on the Tekscopes mailing lists have taken to installing computer heat sinks on them to increase their longevity. About the only place you can get the chips is from other parts queens. Mark -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On Friday 01 May 2015 12:00:40 Mark Wendt wrote: On Fri, May 1, 2015 at 11:08 AM, Gene Heskett ghesk...@wdtv.com wrote: Never say never. I own a set of them there input attenuators, as well as almost all the gear required to calibration most Tek analog scopes, up to, and including the 7104 1 GHz mainframe. How deep are your pockets? [...] I'm talking about guys like me out there that collect vintage Tek stuff relatively inexpensively from Ebay, hamfests, Craigslist and other sources, and they are malfunctioning, repair them. And then run them through the performance checks and calibrate if necessary. My calibrations don't carry certs, but the scope will end up close enough for gummint work, or for that matter, just about any shop work you or I would do. Touche' And then there are the amateur metrologists out there who have full-up cal labs in their shop, called the volt-nuts and time-nuts (I unashamedly admit to being on both those mailing lists... ;-) ) will cal your measuring equipment for you. I've got close to a dozen different Tek scopes from an SC502 TM50x mainframe plugin up to a 7854 four-bay mainframe which does waveform calculations and has digital storage. Power draw? All are quite repairable should anything break. There are a few Tek products with almost unobtanium proprietary chips in them, but I avoid those. None of the scopes I have have those parts. How does one discern that? And there are quite a few shops out there that will cal the scopes with certs if you require them too. Which is why I asked if you had really deep pockets. We have been frugal so I could do it, once. But I would never hear the end of it for paying 3 or 4 grand to calibrate a 99 dollar (+ ship, that thing must weigh 35 lbs) ebay scope. For under a $500 bill you can own a 2ghz digital sampler that masquerades as a 200Mhz, dual trace scope, with a full color display 2x the size of the teks, and 10x brighter. And weighs 2 lbs change. No need for deep pockets, as I mentioned above. They aren't Tek. They're guys like me that enjoy playing around with the vintage scopes, and have built labs for repair and calibration. As I mentioned before, I can repair and calibrate a scope close enough (without certs) for pretty much any use I, or just about anybody else on this list would have. We aren't running NIST labs, creating satellites, or stuff like that, though as I mentioned previously, there are guys out there that can cal your gear and back it up with NIST certs. The beginning of the end for tek was when they went public, then bought, or was bought, by the Grass Valley Group, both of which made top of the line test and production video gear IN THEIR DAY. Then they rested on their 1980 laurals. Today, they are both history, having been surpassed in the night by people whose names you may never have heard of, but who WILL give you the state of the art tools you need today, at a reasonable asking price. I gotta say it, Mark, that 2015 morning coffee smells pretty darned good from here. The 1985 version? Gah, its hopelessly burnt sitting on the back burner that long. So, perhaps there's a spot in your shop that requires 20 GHz+ bandwidth digital scopes, VNA's, spectrum analyzers and such that cost well over $20k a piece? I gotta see your shop! ;-) Nope, that recent Chinese digital is the best I can drag out to impress the frogs with. I have easily impressed frogs here in WV though. :) Let's face it. A 500 MHz analog scope is way overkill for pretty much anything you, I or anyone else on this list will do in their shops. +10 at least, Mark. A 50mhz quad trace would do anything we need to do, if they made it. That was one of the reasons I bought that newer (then) Hitachi for the tv station, it takes a quad trace scope to setup a DVC-PRO deck after replacing a head drum/motor assembly. And you do that fairly frequently since head life is sub 2.5k hours run time in the average editing booth. Its also fragile as hell when being cleaned. Those, the first of the truly digital tape decks, caused a whole generation of wannabe techs to be needed to keep them running well. I couldn't hire them for any amount of money, we had by then collected the cream of the tech minded people available locally, so I wound up doing it all. Half the reason I retired at about 66.75 yo. Problem solved when they converted the next generation cameras to interchangeable hard drives as a recording medium. Sealed environment=20x more dependable. The head assembly at $2000+, vs a $200 hard drive box anyone could plug in. With longer recording time than the tape ever gave. Whats not to love? 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
Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On 1 May 2015 at 17:00, Mark Wendt wendt.m...@gmail.com wrote: There are a few Tek products with almost unobtanium proprietary chips in them, but I avoid those. I think I probably have one, but so far I like it a lot. Partly because it is small enough to transport by motorcycle. It's a 336 (picture of one here: http://www.komu.jp/DSCN0837B111.jpg ) with on-screen menus and storage and all sorts of other things that must have cost a fortune when new. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On Fri, May 1, 2015 at 11:08 AM, Gene Heskett ghesk...@wdtv.com wrote: Never say never. I own a set of them there input attenuators, as well as almost all the gear required to calibration most Tek analog scopes, up to, and including the 7104 1 GHz mainframe. How deep are your pockets? When that 2235 was about 7 years old, I found the input attenuator wasn't anywhere near the 1,2,5 sequence on 1 channel, off on both but wyyy off on one, as it had been left for days looking at a 285 volt dc level, with 150 volts of video on it, looking for an intermittent, which when it finaly showed itself, was a bad .5 uf paper capacitor that was opening up. Called tek after having verified the R's on that fawncy ceramic plate were sick (but not discolored in the least), found that it was past the federally mandated 5 years since it went out of production for parts availability, that yes they still had one left, no claims that it was good, and they wanted $1750 from me for the privilege of testing it when I installed it. I sent it to the transmitter forever, and spent that money and another thou on a Hitachi v1085, which 20 some years later still self tests itself at powerup and remains in calibration yet today. The pushbuttons aren't getting as much use today so they are a bit flaky, but then so are the buttons on my 30 yo V1065, whose computer isn't near as smart as the later version. I'm talking about guys like me out there that collect vintage Tek stuff relatively inexpensively from Ebay, hamfests, Craigslist and other sources, and they are malfunctioning, repair them. And then run them through the performance checks and calibrate if necessary. My calibrations don't carry certs, but the scope will end up close enough for gummint work, or for that matter, just about any shop work you or I would do. And then there are the amateur metrologists out there who have full-up cal labs in their shop, called the volt-nuts and time-nuts (I unashamedly admit to being on both those mailing lists... ;-) ) will cal your measuring equipment for you. I've got close to a dozen different Tek scopes from an SC502 TM50x mainframe plugin up to a 7854 four-bay mainframe which does waveform calculations and has digital storage. All are quite repairable should anything break. There are a few Tek products with almost unobtanium proprietary chips in them, but I avoid those. None of the scopes I have have those parts. And there are quite a few shops out there that will cal the scopes with certs if you require them too. Which is why I asked if you had really deep pockets. We have been frugal so I could do it, once. But I would never hear the end of it for paying 3 or 4 grand to calibrate a 99 dollar (+ ship, that thing must weigh 35 lbs) ebay scope. For under a $500 bill you can own a 2ghz digital sampler that masquerades as a 200Mhz, dual trace scope, with a full color display 2x the size of the teks, and 10x brighter. And weighs 2 lbs change. No need for deep pockets, as I mentioned above. They aren't Tek. They're guys like me that enjoy playing around with the vintage scopes, and have built labs for repair and calibration. As I mentioned before, I can repair and calibrate a scope close enough (without certs) for pretty much any use I, or just about anybody else on this list would have. We aren't running NIST labs, creating satellites, or stuff like that, though as I mentioned previously, there are guys out there that can cal your gear and back it up with NIST certs. The beginning of the end for tek was when they went public, then bought, or was bought, by the Grass Valley Group, both of which made top of the line test and production video gear IN THEIR DAY. Then they rested on their 1980 laurals. Today, they are both history, having been surpassed in the night by people whose names you may never have heard of, but who WILL give you the state of the art tools you need today, at a reasonable asking price. I gotta say it, Mark, that 2015 morning coffee smells pretty darned good from here. The 1985 version? Gah, its hopelessly burnt sitting on the back burner that long. So, perhaps there's a spot in your shop that requires 20 GHz+ bandwidth digital scopes, VNA's, spectrum analyzers and such that cost well over $20k a piece? I gotta see your shop! ;-) Let's face it. A 500 MHz analog scope is way overkill for pretty much anything you, I or anyone else on this list will do in their shops. Cheers, Gene Heskett Cheers, Mark -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y
Re: [Emc-users] micro-v belts, smaller
On Friday 01 May 2015 10:08:13 andy pugh wrote: On 1 May 2015 at 14:34, John Kasunich jmkasun...@fastmail.fm wrote: Making a poly-V belt pulley is simple lathe work. Making a timing belt pulley means cutting the teeth. Much more complicated. You just need to know the right people: https://www.youtube.com/watch?v=ltmZrDrt6pQ And have the right machine... I have a table for my mill, and a round bottom gully would be a piece of cake but would need entry and exit clearances I am not able to calculate. I'll pass on that. The encoder I'll install at the same time will give me the rotational accuracy for rigid threading. TBT, to do a toothed pulley I'd have to go spend 500$ on a better table to do that right. I would NOT trust this one for 1 degree accuracy, and certainly not for eccentricity as it has no MT tapered center hole at all. $100 4 from Grizzly with a made in india sticker on it. My putting a 425 oz motor on it doesn't help that. I'd need a 3 4 jaw to adequately center the workpiece. It does a great job of sharpening bits at the correct angles against a diamond disk though. :) 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 -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] micro-v belts, smaller
On 5/1/2015 11:55 AM, andy pugh wrote: On 1 May 2015 at 16:37, Dave Cole linuxcncro...@gmail.com wrote: https://www.youtube.com/watch?v=ltmZrDrt6pQ Are you taking orders? Send the blanks, I can put teeth on. But only metric T5 at the moment. If you can see the belt profile you want here then I can do it and keep the hob as payment. http://www.ebay.co.uk/sch/m.html?_odkw=_ssn=tony4cats_nkw=hob That would be an excellent deal. I have another application on a different machine. Let me find out if that situation has been solved yet. Another guy was chasing that issue. Same problem. Custom pulleys were more than 6 weeks out no matter what the money. The blanks are easy to make up. Dave --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] micro-v belts, smaller
On Friday 01 May 2015 11:15:25 Dave Cole wrote: On 4/30/2015 7:51 PM, Gene Heskett wrote: [...] Ah, Dave? Did you miss the memo? We are used to making our own special parts. Making the pulley's doesn't seem like a particularly hard thing to do, so that is what I am about. But I have a PITA in the machine that runs my lathe, its recently turned into a crashomatic, with uptimes of about an hour! And since it is an nfs mount, when it crashes, it locks up the rest of the machines that are mounting it. Thats the PITA problem. And IMO a damned bug in nsf4. I think I am going to have to find another PSU for it, there is no other rhyme or reason for it to go away in the middle of a job, like it has done 3x today. I padded up to the shop tapped the reset button just now so I'll be good for maybe an hour. But I also just commented that line out of fstab on this machine until such time as I get that one fixed. Hi Gene, Got the memo but other needs have taken precedence.. such as bringing home the bacon etc. Ya know... not everyone has the luxury of retirement yet.. ;-) I hear that loud and clear, which is why I mentioned it somewhere in this thread. Seriously, I thought that your lathe was broke and you needed the belt and pulleys to fix it! The lathes computer needs help, currently the rest of it is doing fairly well if only the head was truly square to the bed. Cheap, very early version of the Chinese 7x12. It is not according to a facing job I did day before yesterday. I had to work the parts over on a sheet of 600 wet-r-dry on my surface plate before I could superglue them together. So I didn't try to face the next 2 for the other pulley, just lapped the high spots away and glued directly to the 40yo oxided faces. Much much closer to flat that way. But I'll need to watch temps as I machine else the superglue gets soggy in the heat. Alu doesn't carve that well when its that hot either as we all know. That would create a catch-22 situation if you had to machine the pulleys for the machine you needed to repair... although perhaps a crank could be fitted.. ;-) I have resorted to the mill for the dirty work on the out of commission lathe a couple times. Gotta get ones creative joices going for that though. ;-) Thanks Dave 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 -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Fwd: [beagleboard] [OT]: In search of an HDMI portable monitor for my BBB
I've been trying to figure out how to use an android tablet over USB as a remote display+touchscreen input, for instance as a DRO. There are 7 tablets costing under $40, e.g. Azpen A700 that was widely available at MicroCenter, so this is a cool and inexpensive possibility. On the tablet, I installed X11 server app from the Play Store: https://play.google.com/store/apps/details?id=x.org.serverhl=en and ran a test program (attached) on the main PC talking to the X server on the tablet via USB: DISPLAY=192.168.1.11:0 wish testbuttons.tcl It runs fine, although the mouse interaction is awkward (have to slide the cursor to the target first before tapping to click). testbuttons.tcl Description: Tcl script -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On Fri, May 1, 2015 at 12:53 PM, Gene Heskett ghesk...@wdtv.com wrote: How deep are your pockets? [...] I'm talking about guys like me out there that collect vintage Tek stuff relatively inexpensively from Ebay, hamfests, Craigslist and other sources, and they are malfunctioning, repair them. And then run them through the performance checks and calibrate if necessary. My calibrations don't carry certs, but the scope will end up close enough for gummint work, or for that matter, just about any shop work you or I would do. Touche' VBSEG And then there are the amateur metrologists out there who have full-up cal labs in their shop, called the volt-nuts and time-nuts (I unashamedly admit to being on both those mailing lists... ;-) ) will cal your measuring equipment for you. I've got close to a dozen different Tek scopes from an SC502 TM50x mainframe plugin up to a 7854 four-bay mainframe which does waveform calculations and has digital storage. Power draw? Here's the 7854 in all it's glory: http://www.barrytech.com/tektronix/tek7000/tek7854.html Here's a list of all the 7000 series mainframes and the plugins: http://www.barrytech.com/tektronix/tek7000/tek7000scopes.html The four-bay mainframes are really nice, allowing two vertical and two timebases plugged in at one time. You can use a timebase in the vertical slot as an amp for x-y functions too. Don't have my 7854 manual handy, so I can't get the power numbers from it. I know I don't really need a heater in the lab when I get the mainframes fired up. ;-) All are quite repairable should anything break. There are a few Tek products with almost unobtanium proprietary chips in them, but I avoid those. None of the scopes I have have those parts. How does one discern that? The Tek Cross-reference manual, and from what the folks on the Tekscopes list have found. So, perhaps there's a spot in your shop that requires 20 GHz+ bandwidth digital scopes, VNA's, spectrum analyzers and such that cost well over $20k a piece? I gotta see your shop! ;-) Nope, that recent Chinese digital is the best I can drag out to impress the frogs with. I have easily impressed frogs here in WV though. :) Our bullfrogs here in MD are bowled over pretty easily too. ;-) Let's face it. A 500 MHz analog scope is way overkill for pretty much anything you, I or anyone else on this list will do in their shops. +10 at least, Mark. A 50mhz quad trace would do anything we need to do, if they made it. That was one of the reasons I bought that newer (then) Hitachi for the tv station, it takes a quad trace scope to setup a DVC-PRO deck after replacing a head drum/motor assembly. And you do that fairly frequently since head life is sub 2.5k hours run time in the average editing booth. Its also fragile as hell when being cleaned. Those, the first of the truly digital tape decks, caused a whole generation of wannabe techs to be needed to keep them running well. I couldn't hire them for any amount of money, we had by then collected the cream of the tech minded people available locally, so I wound up doing it all. Half the reason I retired at about 66.75 yo. Problem solved when they converted the next generation cameras to interchangeable hard drives as a recording medium. Sealed environment=20x more dependable. The head assembly at $2000+, vs a $200 hard drive box anyone could plug in. With longer recording time than the tape ever gave. Whats not to love? I'm kinda partial to the Tek 7000 mainframe series. There are tons of plugins besides the horizontal and vertical amps from counters, to curve tracers to spectrum analyzers to you name it. Cheers, Gene Heskett Cheers, Mark -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On Friday 01 May 2015 02:26:32 Gregg Eshelman wrote: On 4/30/2015 10:52 PM, Gene Heskett wrote: There's a 5 volt line not used on newer ATX power supplies so if you have a tester and it says that line is bad, look to see if the wire is not in the connector. I think the drive logic, in both drives, (rotating magnetic, and rotating optical) needs 5 volts in these boxes, so I would expect it to be present and accounted for. Unless I missed the memo... Here's the memo. :) http://www.tomshardware.com/forum/337378-28-white-wire-missing Ahh, so, the MINUS 5 volt line. Sorta like the passenger pidgeon or dodo bird. Extinct. :) Does not exist even in this quad core phenom build, which is pretty ancient itself. 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 -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On Fri, May 1, 2015 at 12:52 AM, Gene Heskett ghesk...@wdtv.com wrote: snippage Now we have to drag out a scope to look at such stuff. It is even better at finding that stuff, but most look at a scope go whazzat thing?, and have no clue even when you tell them what its doing. Get 'em one a these - Ebay #171772965816 ;-) Mark -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] micro-v belts, smaller
On Friday 01 May 2015 05:05:33 Mark Wendt wrote: On Thu, Apr 30, 2015 at 4:14 PM, Todd Zuercher zuerc...@embarqmail.com wrote: Try searching for a J section belt, I found some listed as small as 8 OC length (what ever that means). http://beltpalace.com/heavy-duty-belts-poly-v-ribbed--j-section.html Outside circumference, maybe? Mark Blink! That may well be the key translation to that acronym Mark, in which case an 8 OC would be way too short. I might have to rethink how I go about determining it. My thoughts up to now have been using nominally 1/2 the circumference as the belt wrap distance for the amount of belt actually in contact with the pulley's and 2x the intershaft spacing as a SWAG to be used for length. If the larger pulley is 70mm, thats nominally 110mm of wrap, and the smaller pulley is 40mm, thats 62mm of belt wrapped, and the shafts are 100mm apart, I'd have 110+62+200=372 to 380mm of belt needed. The dis-similar sizes will of course give more wrap length on the larger pulley and less on tha smaller pulley, so to be dead on I'd better look it up in the Handbook. OTOH, thats what the pivoting motor mount is for anyway. :) So a 15 OC belt would be in the ballpark. But I'd best get the pulleys made first, if I can determine the rib spacing. I'd love to put the motor behind the spindle, but that would intersect with the Z drive bolt, so it will need to remain as a sideways offset. All that of course is TBD. ;-) 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 -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] micro-v belts, smaller
On Fri, May 1, 2015 at 5:55 AM, Gene Heskett ghesk...@wdtv.com wrote: Try searching for a J section belt, I found some listed as small as 8 OC length (what ever that means). http://beltpalace.com/heavy-duty-belts-poly-v-ribbed--j-section.html Outside circumference, maybe? Mark Blink! That may well be the key translation to that acronym Mark, in which case an 8 OC would be way too short. I might have to rethink how I go about determining it. My thoughts up to now have been using nominally 1/2 the circumference as the belt wrap distance for the amount of belt actually in contact with the pulley's and 2x the intershaft spacing as a SWAG to be used for length. If the larger pulley is 70mm, thats nominally 110mm of wrap, and the smaller pulley is 40mm, thats 62mm of belt wrapped, and the shafts are 100mm apart, I'd have 110+62+200=372 to 380mm of belt needed. The dis-similar sizes will of course give more wrap length on the larger pulley and less on tha smaller pulley, so to be dead on I'd better look it up in the Handbook. OTOH, thats what the pivoting motor mount is for anyway. :) So a 15 OC belt would be in the ballpark. But I'd best get the pulleys made first, if I can determine the rib spacing. I'd love to put the motor behind the spindle, but that would intersect with the Z drive bolt, so it will need to remain as a sideways offset. All that of course is TBD. ;-) Cheers, Gene Heskett Ding! Ding! We have a winnah! http://www.durabelt.com/beltlengthcalculator.php ID, OD, IC and OC... ;-) Mark -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] micro-v belts, smaller
On Friday 01 May 2015 05:39:58 Roland Jollivet wrote: Hi Gene I only saw 'V' after I posted. But for such light duty, why not use a flat belt made to order? They're easy to get. There's also Habisat belts. Regards Roland What sort of a critter are they? 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 -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] micro-v belts, smaller
I just ran the numbers and for the dimensions you gave the belt length is almost exactly 375mm. For those sizes I'd use a HTD toothed belt. Pulleys are fairly cheap and belts are easily available in wide range of sizes. It is a pity your belt is so short. Automotive poly-V belts are available in roughly 5mm increments from 600mm upwards, widths from 3 to 8 ribs. Just for reference the part numbers for PK series poly-V belts are easy to work out. For instance a 3PK0750 belt would be 3 rib, 750mm pitch circumference (cut length). Les Blink! That may well be the key translation to that acronym Mark, in which case an 8 OC would be way too short. I might have to rethink how I go about determining it. My thoughts up to now have been using nominally 1/2 the circumference as the belt wrap distance for the amount of belt actually in contact with the pulley's and 2x the intershaft spacing as a SWAG to be used for length. If the larger pulley is 70mm, thats nominally 110mm of wrap, and the smaller pulley is 40mm, thats 62mm of belt wrapped, and the shafts are 100mm apart, I'd have 110+62+200=372 to 380mm of belt needed. The dis-similar sizes will of course give more wrap length on the larger pulley and less on tha smaller pulley, so to be dead on I'd better look it up in the Handbook. OTOH, thats what the pivoting motor mount is for anyway. :) So a 15 OC belt would be in the ballpark. But I'd best get the pulleys made first, if I can determine the rib spacing. I'd love to put the motor behind the spindle, but that would intersect with the Z drive bolt, so it will need to remain as a sideways offset. All that of course is TBD. ;-) Cheers, Gene Heskett -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] NFS mount lockup [Was: micro-v belts, smaller]
On Friday 01 May 2015 02:33:30 Erik Christiansen wrote: On 30.04.15 19:51, Gene Heskett wrote: But I have a PITA in the machine that runs my lathe, its recently turned into a crashomatic, with uptimes of about an hour! And since it is an nfs mount, when it crashes, it locks up the rest of the machines that are mounting it. Thats the PITA problem. And IMO a damned bug in nsf4. Gene, if the problem is not just loss of access (unavoidable once the NFS exporter has crashed), but the lock-up you describe, then changing the NFS mount from hard to soft should fix that. Humm, sounds like I should be reading the manpage more better. :( (man nfs says data integrity may suffer if connection is not over TCP-IP, but I've never noticed, admittedly with now 30-year old NFS, under Solaris) That manpage does, though, say: Using the intr option is preferred to using the soft option because it is significantly less likely to result in data corruption. But then it goes on to say it isn't much use after kernel 2.6.25. Looks like the developers don't use NFS much. In the old days, I used soft mounts to allow a server farm to come up despite NFS cross-mounts. With hard mounts, and A needing B, and B needing A, they could never come up. Using a soft mount on one side let them boot, at the cost of a manual NFS mount a little later. (Soft mounts on both sides could necessitate two manual NFS mounts) Erik Thanks Erik. I'll check it out. 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 -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] micro-v belts, smaller
On Thu, Apr 30, 2015 at 4:14 PM, Todd Zuercher zuerc...@embarqmail.com wrote: Try searching for a J section belt, I found some listed as small as 8 OC length (what ever that means). http://beltpalace.com/heavy-duty-belts-poly-v-ribbed--j-section.html Outside circumference, maybe? Mark -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On Fri, May 1, 2015 at 2:26 AM, Gregg Eshelman g_ala...@yahoo.com wrote: On 4/30/2015 10:52 PM, Gene Heskett wrote: There's a 5 volt line not used on newer ATX power supplies so if you have a tester and it says that line is bad, look to see if the wire is not in the connector. I think the drive logic, in both drives, (rotating magnetic, and rotating optical) needs 5 volts in these boxes, so I would expect it to be present and accounted for. Unless I missed the memo... Here's the memo. :) http://www.tomshardware.com/forum/337378-28-white-wire-missing So, does he take the red pill or does he take the blue pill? ;-) Mark -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] micro-v belts, smaller
Hi Gene I only saw 'V' after I posted. But for such light duty, why not use a flat belt made to order? They're easy to get. There's also Habisat belts. Regards Roland On 1 May 2015 at 11:02, Gene Heskett ghesk...@wdtv.com wrote: On Friday 01 May 2015 01:00:50 Roland Jollivet wrote: Hi Gene Have you looked at RS components? http://za.rs-online.com/web/c/pneumatics-hydraulics-power-transmission /power-transmission-belts/timing-belts/?sra=p Regards Roland I wasn't looking for timing belts Roland. I backed up but never did find any micro-v or polygroove types. And no clue what sort of money denomination they ask, but with starting prices ranging upwards from 96 of whatever it is, I backed away quickly. As for timing with cogged belts, an quadrature encoder on the spindle with feedback will handle that adequately. Thanks for looking Roland. 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 -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On Friday 01 May 2015 05:15:24 Mark Wendt wrote: On Fri, May 1, 2015 at 12:52 AM, Gene Heskett ghesk...@wdtv.com wrote: snippage Now we have to drag out a scope to look at such stuff. It is even better at finding that stuff, but most look at a scope go whazzat thing?, and have no clue even when you tell them what its doing. Get 'em one a these - Ebay #171772965816 ;-) Mark That one is out of calibtration by now, and uncalibratable because the input attenuator parts are out of stock. I will never touch a 20 yo Tek again after my experience trying to get them to warranty the tube that was clearly defective in a 22xx, 100mhz dual trace when it was new in 1984. I finally bought a crt and put it in myself. Long since replaced with a good Hitachi. 30 years later its still in pretty close calibration. Getting scope poor around here though, I bought a DS0-1 a couple years back, already have a Hitachi V1065, 100 mhz dual trace analog and just last fall bought a dual trace 100mhz digital. For 1 shot storage, its amazing. 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 -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On Fri, May 1, 2015 at 6:07 AM, Gene Heskett ghesk...@wdtv.com wrote: On Friday 01 May 2015 05:15:24 Mark Wendt wrote: On Fri, May 1, 2015 at 12:52 AM, Gene Heskett ghesk...@wdtv.com wrote: snippage Now we have to drag out a scope to look at such stuff. It is even better at finding that stuff, but most look at a scope go whazzat thing?, and have no clue even when you tell them what its doing. Get 'em one a these - Ebay #171772965816 ;-) Mark That one is out of calibtration by now, and uncalibratable because the input attenuator parts are out of stock. I will never touch a 20 yo Tek again after my experience trying to get them to warranty the tube that was clearly defective in a 22xx, 100mhz dual trace when it was new in 1984. I finally bought a crt and put it in myself. Long since replaced with a good Hitachi. 30 years later its still in pretty close calibration. Getting scope poor around here though, I bought a DS0-1 a couple years back, already have a Hitachi V1065, 100 mhz dual trace analog and just last fall bought a dual trace 100mhz digital. For 1 shot storage, its amazing. Cheers, Gene Heskett Never say never. I own a set of them there input attenuators, as well as almost all the gear required to calibration most Tek analog scopes, up to, and including the 7104 1 GHz mainframe. And there are quite a few shops out there that will cal the scopes with certs if you require them too. -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Fwd: [beagleboard] [OT]: In search of an HDMI portable monitor for my BBB
Not touch, but it's a nice little HiRes screen is: http://hdmipi.com (I bought one of the original kickstarter batch) -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] micro-v belts, smaller
On 1 May 2015 at 10:02, Gene Heskett ghesk...@wdtv.com wrote: I wasn't looking for timing belts Roland. I backed up but never did find any micro-v or polygroove types. And no clue what sort of money denomination they ask, but with starting prices ranging upwards from 96 of whatever it is, I backed away quickly. Rand will look expensive. £ will look cheap: http://uk.rs-online.com/web/p/timing-belts/4749507/ But they don't do Poly-V. Given that you can't find the belt and you have to make the pulleys, why not use a toothed belt? -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] micro-v belts, smaller
On Fri, May 1, 2015, at 07:13 AM, andy pugh wrote: Given that you can't find the belt and you have to make the pulleys, why not use a toothed belt? Making a poly-V belt pulley is simple lathe work. Making a timing belt pulley means cutting the teeth. Much more complicated. He could probably buy a timing belt pulley, but since its for a lathe spindle it probably needs a larger-than-normal bore. So it's likely to need re-worked anyway. -- John Kasunich jmkasun...@fastmail.fm -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
