[Emc-users] How come....

2019-05-09 Thread Peter Blodow
there has been no incoming mail since May 6th? Peter ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Mister/Coolant

2019-03-26 Thread Peter Blodow
I had a similar problem, coughing away as soon as I had worked on my PC for some time. Moving my laser printers to the adjacent room solved the problem. Besides, getting up and moving a few steps now and then in order to fetch papers from the printer next room helped my back pains, too. Peter

Re: [Emc-users] CANopen configuration files, CiA 309-3

2019-03-18 Thread Peter Blodow
Sorry, error: of course, gassing  d e creases capacity and increases resistance of lead cells! Peter Am 18.03.2019 um 10:19 schrieb Peter Blodow: Nicklas, as soon as a lead-acid battery bubbles, it's losing water and the plates cover with lead sulphate, increasing capacity and intrinsic

Re: [Emc-users] CANopen configuration files, CiA 309-3

2019-03-18 Thread Peter Blodow
Nicklas, as soon as a lead-acid battery bubbles, it's losing water and the plates cover with lead sulphate, increasing capacity and intrinsic resistance. No, no. I got myself a handful of cheap 74N137 stabilizers. These are made espacially by Motorola to maintain a constant charging voltage of

Re: [Emc-users] OT: Where's them fires. [Was: Re Conversational mode.

2019-03-11 Thread Peter Blodow
Jon, some time ago I was CET of a large research plant where we had a small  GE reactor, specialized for production of radiation, not power. We also used other radiation sources like gamma sources (cobalt), accelerators, lasers and aside from that, ultrasonic generators. Several hundreds of

Re: [Emc-users] No clean solder flux, how to buy in Sweden

2019-02-24 Thread Peter Blodow
Karlsson: On Sun, 24 Feb 2019 17:29:22 +0100 Peter Blodow wrote: Nicklas, although buying rosin core solder is no problem hereabouts, I still prefer to make my own flux: Dissolve one or two large spoons full of crushed colophonium (the cheapest quality from the music store) in a little bottle of 95

Re: [Emc-users] No clean solder flux, how to buy in Sweden

2019-02-24 Thread Peter Blodow
Nicklas, although buying rosin core solder is no problem hereabouts, I still prefer to make my own flux: Dissolve one or two large spoons full of crushed colophonium (the cheapest quality from the music store) in a little bottle of 95% cleaning alcohol. Probably 80% Jamaica rum works just the

[Emc-users] Metric units (was: Would this blower be useful...)

2019-02-24 Thread Peter Blodow
P.S: People who are used to sixteenths of the width of a medieval thumb, the weight of rocks used in throwing competitions and the volume of barrels way too heavy for carrying as measures should not argue earnestly in public about metric decimal units... No offence! Peter Blodow Am 24.02.2019

Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

2019-02-24 Thread Peter Blodow
, there were such). Therefore, the unit of weight was named after him. My best regards! Peter Blodow Dipl.-Phys. Am 24.02.2019 um 10:31 schrieb andy pugh: The hecto, centi, deci, deka are deprecated in SI, so cm should not be used. I am a bit annoyed that the base mass unit is the kg, ie

Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

2019-02-17 Thread Peter Blodow
Chris, just think of the radioactive people like the Curies and Bequerel (rad. activity),  Gray (energy dosis), Sievert (man-equivalent dosis). Then there was Georg Ohm for el. resistance and, for what his name is read "Mho" backwards in the US, Siemens for conductivity. Then, most important,

Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

2019-02-16 Thread Peter Blodow
Andy, you forgot that blood pressure in Europe is measured in mm of mercury... Peter Am 16.02.2019 um 12:47 schrieb Andy Pugh: On 16 Feb 2019, at 09:21, Erik Christiansen wrote: as lb/in^2 isn't right It can be, if you measure oil consumption in slugs. We use hPa a lot at work. It annoys

Re: [Emc-users] WeTransfer? Anybody know anything about them?

2019-01-27 Thread Peter Blodow
Gene, while writing all this description you could easily have taken a couple of pictures and mailed them instead. If I remember right, some time ago you promised some more pics, anyway It's hard to follow and imagine what you are doing and what your problems are without knowing the

Re: [Emc-users] Spindle Encoder AEDR-8300 Encoder Ring

2018-11-29 Thread Peter Blodow
Hello David, how did this funny gear ratio come to be? Assuming it's tooth gears or a belt drive, can't you change it to 55/55 or 68/68 or some other 1/1 ratio, which would solve this problem? Years ago, I made drawers full of gears for cases like this, letting my little mill make gears for

Re: [Emc-users] No mail received?

2018-10-21 Thread Peter Blodow
I did, even wrote a diploma thesis on that subject, but this was some 40 years ago... Since then, I rather managed people doing research on it. Peter Am 19.10.2018 um 19:39 schrieb Nicklas Karlsson: I am still here, working on control theory right now. Anybody who have a taken any courses of

[Emc-users] No mail received?

2018-10-19 Thread Peter Blodow
Gentlemen, I haven't got any mail from this list since Oct.10th. How come? Is there something wrong with the EMC server, or is it my provider? Or are there no more problems (or successes) to report? Peter ___ Emc-users mailing list

Re: [Emc-users] Possibly useful keyboards

2018-08-02 Thread Peter Blodow
Gentlemen, treating transparent plastic material is tricky, but not hard to do. For instance, in my company's shop we sometimes had to make covers (hoods) for scientific laboratory equipment. Polycarbonate, whatever its trade name may be (Macrolon in Germany), can be bent cold like sheet metal

[Emc-users] no news any more?

2018-07-07 Thread Peter Blodow
How come I have not read any news for 5 days now? Is there something wrong with servers etc., or are there really no problems around?? Peter -- Check out the vibrant tech community on one of the world's most engaging

[Emc-users] Fwd: Re: tap makers vs bolt makers

2018-06-27 Thread Peter Blodow
Weitergeleitete Nachricht Betreff:Re: [Emc-users] tap makers vs bolt makers Datum: Thu, 28 Jun 2018 00:06:52 +0200 Von:Peter Blodow An: Gene Heskett Gene, there are DIN threads that are printed in bold type in the DIN list, the rest is not recommended

Re: [Emc-users] Newall DRO integration

2018-05-23 Thread Peter Blodow
Chris, thank you. The tilde was transformed to /∼ . Peter Am 22.05.2018 um 21:27 schrieb MC Cason via Emc-users: On 05/22/2018 02:02 PM, Peter Blodow wrote: Sorry, Chris, I get a "Not Found"-Error with your caltech link without any further comment. Peter   It must be a code

Re: [Emc-users] Newall DRO integration

2018-05-22 Thread Peter Blodow
Sorry, Chris, I get a "Not Found"-Error with your caltech link without any further comment. Peter Am 22.05.2018 um 18:10 schrieb Chris Albertson: I just got a copy of "Feedback Systems - An Introduction for Scientists and Engineers, Karl Johan °Aström and Richard M. Murray" The book is FREE

Re: [Emc-users] Zeiss touch probes

2018-05-11 Thread Peter Blodow
Which photo? And a ROM is a good way to hide secrets, chapeau!. Peter Am 11.05.2018 um 11:11 schrieb andy pugh: On 11 May 2018 at 07:33, Peter Blodow <p.blo...@dreki.de> wrote: Andy, Zeiss uses the "switching" function as a major argument in advertising this probe, so me

Re: [Emc-users] Zeiss touch probes

2018-05-11 Thread Peter Blodow
Andy, Zeiss uses the "switching" function as a major argument in advertising this probe, so measuring the bare resistance wouldn't be satisfying. There must be a feature you didn't find when destroying your probe. It's digital this way. Unfortunately, on the Zeiss homepage, when selecting the

Re: [Emc-users] Ferrite on a shielded cable

2018-05-08 Thread Peter Blodow
Andy, if the shield of your cables is any good, there should be no electric field outside of it (that's the purpose of coaxial shielding), thus, no interference, so further measures like ferrite rings etc. are useless at this point. Your 4 servos draw current from the power supply. The common

Re: [Emc-users] wiring. axis move?

2018-03-24 Thread Peter Blodow
Aram, an aluminum box will not shield magnetic noise, you would need heavy iron walls for that. Aluminum - as any electrically conductive material - will only help keeping electrostatic noise out, but for this purpose, it must be connected to a good ground (earth). Telling from your

Re: [Emc-users] non-contact position sensors, surprisingly good performance.

2018-03-04 Thread Peter Blodow
craftsmanship. I used up my last pipes to make handles for alu pouring equipment because they will fit plastic bicycle handles. Peter Am 20.02.2018 um 18:38 schrieb Andy Pugh: On 17 Feb 2018, at 15:26, Peter Blodow <p.blo...@dreki.de> wrote: Am 16.02.2018 um 06:32 schrieb Chris Alb

Re: [Emc-users] non-contact position sensors, surprisingly good performance.

2018-02-18 Thread Peter Blodow
Am 16.02.2018 um 06:32 schrieb Chris Albertson: /snip/ /snip I think this thread size os used for those very thin rings used for electrical jacks and toggle switches. The ring nuts are only 2mm thick so they need an ultra fine pitch. ...which usually is 0.75 mm. Peter

Re: [Emc-users] 240V single phase input vfd

2018-01-02 Thread Peter Blodow
Gregg, the 5 Hz is because - at least hereabouts - the VFDs are used mostly for ventilation drives and they start with low speed and then accelerate for noise reasons. Maybe there are also safety reasons. Peter Am 03.01.2018 um 00:43 schrieb Gregg Eshelman via Emc-users: The one I have on my

Re: [Emc-users] Ethercat master --> DieBieSlave LAN9252

2017-12-13 Thread Peter Blodow
Am 13.12.2017 um 16:57 schrieb Dave Cole: See the Suchen button. I think that is "search" in German. German suchen corresponds to engl. seek, old engl. seacan. Peter -- Check out the vibrant tech community on one of

Re: [Emc-users] oddball job

2017-11-23 Thread Peter Blodow
Gene, I assume that you have the gear which the one in question is to mesh with. Knowing the number of teeth desired (11), you should be able to find out or calculate the gear's properties, get a brass (or plastic) blank and produce the item on a mill (if you have a dividing head). Will be

Re: [Emc-users] No more mails

2017-08-31 Thread Peter Blodow
PS: Strangely, they didn't want a password, nor did I have to create one when re-subscribing. (Couldn't remember after all those years, anyway). P. Am 31.08.2017 um 08:32 schrieb Peter Blodow: Stuart, Cecil, yes, there was a memo to renew the subscription, Yes, I also ignored it the first

Re: [Emc-users] No more mails

2017-08-31 Thread Peter Blodow
he way from town to us here way out. Greetings Peter Blodow -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/sl

Re: [Emc-users] No more mails

2017-08-30 Thread Peter Blodow
from LinuxCNC (EMC). Is there something wrong with my subscription, or is everybody on vacation? Did you change the mail address? In addition, our village has repeatedly been cut off from communications because of cable failures on the way from town to us here way out. Greetings Peter Blodow

Re: [Emc-users] change of subject, brass or copper?

2017-07-16 Thread Peter Blodow
Erik, I have also bearings with an outer ring of toroid surface (no edges), but never used them. Peter Am 16.07.2017 um 10:38 schrieb Erik Christiansen: On 16.07.17 09:26, Peter Blodow wrote: Gene, learning from the experience from machining in our shop, I made my (own private) steady rest

Re: [Emc-users] change of subject, brass or copper?

2017-07-16 Thread Peter Blodow
Gene, learning from the experience from machining in our shop, I made my (own private) steady rest with small ball bearings right from the beginning (and also the moving rest which can be bolted to the carriage). They also cause some minor traces on the workpieces, but these can be polished

[Emc-users] A phoney from Sourceforge?

2017-06-10 Thread Peter Blodow
of spoof to make me contact that link, maybe to confirm the existence of my email address or make me pick up a virus. Has anybody else received such a message? Greetings Peter Blodow --- Diese E-Mail wurde von Avast Antivirus-Software auf Viren geprüft. https://www.avast.com/antivirus

Re: [Emc-users] how to configure motors in pncconf?

2017-04-23 Thread Peter Blodow
Long time ago, pncconf had an error, so that it made 5 steps to a cycle instead of 4. This made the same symptoms at the steppers as you picture. What version of pncconf are you using? Peter Blodow Am 23.04.2017 um 14:50 schrieb Valerio Bellizzomi: > On Sun, 2017-04-23 at 08:21 -0400, T

Re: [Emc-users] Cast Bracket for FHA-25 Harmonic Actuator.

2017-04-03 Thread Peter Blodow
Sorry, I just get a white screen after a lot of downloading. Must be an autocad-specific file format!? Peter Am 03.04.2017 17:37, schrieb andy pugh: > I have just handed over the pattern to the foundry for a right-angle housing. > http://a360.co/2oQX7Ct > is the 3D model of the pattern. The

Re: [Emc-users] Thoughts on extending the life of the microsd's.

2017-03-12 Thread Peter Blodow
Please, could someone explain to a poor physicist what noatime and Mutt are? Peter Am 12.03.2017 16:34, schrieb dragon: > For about three years now, I know of no other applications that has > issues with noatime other than Mutt. Everyone always says 'but it breaks > programs like Mutt' but in

Re: [Emc-users] Durable Paint [Was: gee, is list in anechoic chamber]

2017-03-08 Thread Peter Blodow
08.03.2017 12:55, schrieb andy pugh: > On 8 March 2017 at 11:23, Peter Blodow <p.blo...@dreki.de> wrote: >> what was subject of the re-roofing if the beams and "shingles" all >> stayed the same? Thermal insulation? > The roof had fallen off. The slates hang from wooden

Re: [Emc-users] Durable Paint [Was: gee, is list in anechoic chamber]

2017-03-08 Thread Peter Blodow
Andy, what was subject of the re-roofing if the beams and "shingles" all stayed the same? Thermal insulation? Peter Am 07.03.2017 16:26, schrieb andy pugh: > On 7 March 2017 at 14:05, Dave Cole wrote: >> I re-roofed the house a few years ago and decided against 50 year

Re: [Emc-users] [OT] Wife is good to go

2017-02-20 Thread Peter Blodow
Wow, good to hear of a guy who is not as conceitet as are all others... I think much the same about myself. Principally, you are right, it's a question of specialisation. But modern civilisation lives from the fact that NOT everybody can do everything, so handicrafts and commerce came into

Re: [Emc-users] Koerner retrofit

2017-02-20 Thread Peter Blodow
Florian, Windows 95 / 98 is MS-DOS with a graphic user interface on top. There was a boot option to start with DOS and then start Windows manually afterwards from the command line, calling c:\windows\win.exe. It was possible to stop Windows, too, get out and return to the normal DOS surface.

Re: [Emc-users] Koerner retrofit

2017-02-18 Thread Peter Blodow
gt; new drivers and a breakout board. Will probably be cheaper than spending > hours of investigating the old electronics. > > /S > > 2017-02-18 13:23 GMT+01:00 Peter Blodow <p.blo...@dreki.de>: > >> Sven, please specify more detail of that machine, at least name, number &g

Re: [Emc-users] Koerner retrofit

2017-02-18 Thread Peter Blodow
Sven, please specify more detail of that machine, at least name, number etc. There is a company (koerner.net), 36456 Barchfeld (bei Bad Salzungen), Germany, making CNC machines. The motors are long, still may be steppers, i use to have similar ones (Dunker Motors), somewhat smaller. Peter PS:

Re: [Emc-users] Koerner retrofit

2017-02-18 Thread Peter Blodow
Gene, remember that the serial ports were used up to 115 KBaud in professional applications. Perter Am 18.02.2017 12:44, schrieb Gene Heskett: > On Saturday 18 February 2017 05:44:03 Sven Wesley wrote: > >> Hi all! >> >> Long time no see, been busy working. :) >> I bought a CNC engraver, really

Re: [Emc-users] vfd compatibility

2017-02-16 Thread Peter Blodow
Am 16.02.2017 08:40, schrieb Gene Heskett: > On Thursday 16 February 2017 02:20:30 Valerio Bellizzomi wrote: > >> On Wed, 2017-02-15 at 19:13 -0500, Gene Heskett wrote: >>> On Wednesday 15 February 2017 15:12:17 Valerio Bellizzomi wrote: On Wed, 2017-02-15 at 14:32 -0500, Gene Heskett wrote:

Re: [Emc-users] Tida_TD-1336_lathe

2017-02-01 Thread Peter Blodow
Kirk, on my Graziano SAG 12 there is a similar spindle head with the camlock fastening system. I made a lot of additional bolts for different chucks and faceplates so I had all the parts in my hands quite frequently. The locking inserts (nuts or what you call them) in the spindle head are

Re: [Emc-users] iffy question about chuck mounting.

2017-01-22 Thread Peter Blodow
Never touch a running system. Peter Am 21.01.2017 20:24, schrieb Gene Heskett: > Greetings everybody. > > My 3 jaw chuck atm, runs pretty true. But to be able to turn the > faceplate around and clean up the OD of the hub for a grab surface for > my clamp concoction so it can't unscrew itself

Re: [Emc-users] Machinekit? --> LinuxCNC computer

2016-10-23 Thread Peter Blodow
Gene, when I started listening to this list, I was intrigued by the possibilties of using ordinary "left-over" desk top PCs (which were getting very cheap at the time) to do extraordinary work with ordinary out-of-time machinery. This wonderful idea met my desires to make ends meet and, what's

Re: [Emc-users] Wat OT: Question about injection molding of PVC

2016-10-16 Thread Peter Blodow
. No CNC involved. Automation can be so simple. Peter Blodow Am 16.10.2016 03:44, schrieb Leonardo Marsaglia: > 2016-10-15 22:33 GMT-03:00 John Kasunich <jmkasun...@fastmail.fm>: > >> Injection pressure will be trying to force the two sides of your mold >> apart. >&

Re: [Emc-users] Problem upgrading from 2.7.4

2016-10-12 Thread Peter Blodow
Am 12.10.2016 22:00, schrieb andy pugh: > On 12 October 2016 at 20:44, Russell Brown wrote: >> What version of python do you have on that? > I would go and look, but it's raining and that machine isn't set up > for wake-on-lan. > At least you have a sound reason for not

Re: [Emc-users] pressure equalizer method around ball nut

2016-10-09 Thread Peter Blodow
If you ever tried to spot-weld two alu sheets, the welder developing about 1 volt, it will show you that it is a question of voltage to break through the oxide layer. After tat, you have conductivity. In order to spot weld, scratch the surfaces hard with a rotating steel brush, after that you

Re: [Emc-users] Rotary table indexer project

2016-09-25 Thread Peter Blodow
Sorry, Chris, your first link doesn't work (not found) and the second requires registration with dropbox or google. Not for me. Peter Am 26.09.2016 05:45, schrieb Chris Albertson: > I've started work on a motorized indexer for my rotary table. At this > point I am not calling this a fourth

Re: [Emc-users] Silly Q about glues

2016-08-30 Thread Peter Blodow
Reallly handy, this chart. Too bad none of these products have ever been seen on this side of the world. Peter Am 30.08.2016 22:15, schrieb Ken Strauss: > Is that what you meant? > http://makezine.com/2016/03/25/dont-glue-anything-without-handy-reference-ch > art/ > > >> -Original

Re: [Emc-users] OT: Servo drive tripping out

2016-08-04 Thread Peter Blodow
: > On 3 August 2016 at 23:14, Peter Blodow <p.blo...@dreki.de> wrote: >> Beginning at 13.2 degrees C. going down, it >> starts changing its metallic character to a more crystalline form, > > https://en.wikipedia.org/wiki/Tin_pest > --- Diese E-Mail wurde von Avas

Re: [Emc-users] OT: Servo drive tripping out

2016-08-03 Thread Peter Blodow
Tin is a very tricky element. It's neighbour in the Periodic Table is germanium, a semiconductor. Beginning at 13.2 degrees C. going down, it starts changing its metallic character to a more crystalline form, almost like powder. At -48 degrees C. it may turn to powder within an hour. All

Re: [Emc-users] brass and warpage during machining.

2016-08-02 Thread Peter Blodow
Heat treating means applying heat to whatever material on earth. Hardening is one aspect of it, annealing another, softening or making malleable yet another. It is not to be expected hat all materials behave the same. Everyone knows that brass and other copper alloys harden by mechanical

Re: [Emc-users] OT Seating Tire Bead

2016-07-28 Thread Peter Blodow
Please, could someone explain to a ignorant old-worlder, what a clamshell digger is? Peter Am 28.07.2016 05:30, schrieb Todd Zuercher: > > - Original Message - > From: "Gene Heskett" > To: emc-users@lists.sourceforge.net > Sent: Wednesday, July 27, 2016 8:41:09 PM

Re: [Emc-users] Anyone heard of EBZ Engineering from the mid 90's?

2016-07-15 Thread Peter Blodow
Gregg, to say it clearly once again: The Sub-D (DB-xx) connector on the side of your machine has surely nothing to do with PC technology, whatsoever. It is just an (still) easily available, low power plugging system that can be used for any purpose requiring multiple pins. Especially, your

Re: [Emc-users] Anyone heard of EBZ Engineering from the mid 90's?

2016-07-14 Thread Peter Blodow
Gregg, another thought: Your litle machine seems to be manufactured in a very professional manner, probably rather expensive since they had it made in Switzerland (double prices compared with Germany, but very high quality), for internal use in the key lock manufacturer's company. So, once

Re: [Emc-users] Anyone heard of EBZ Engineering from the mid 90's?

2016-07-14 Thread Peter Blodow
Gregg, the EBZ group is a fairly large german tool company, situated in southern germany, with factories in Hungary, India, China and the US. 900 employees, 250 MEUR per year. They make very special machinery for car body building, i.e. robots. They have a US branch: EBZ SysTec Inc. 22251

Re: [Emc-users] ER-16 spindles

2016-06-29 Thread Peter Blodow
Being in possession of a lathe, I bought a set of cheap collets, a special nut and a six-prong wrench to go with them and made my spindle myself. Peter Am 29.06.2016 17:16, schrieb Ralph Stirling: > Have any of you come across cheap collet spindles that > have a through-bore? I am toying with

Re: [Emc-users] slow time, or server upchuck (again)

2016-06-26 Thread Peter Blodow
Gene, haven't heard a lot from you recently, either - thought you were rinsed away by a little water, as I read in the news? Peter Am 26.06.2016 15:22, schrieb Gene Heskett: > Greetings all; > > Its been 10 days since I last rx'd a message from this list. Is > everybody on vacation? > > Cheers,

Re: [Emc-users] Quiet?

2016-06-08 Thread Peter Blodow
Oh John, for us over here "on the other side of the pond" it is exceedingly interesting what is being said about Donald in his own country. We all wonder who these Americans actually are that encourage him on his hate campaign and may even elect him... Keep writing! Peter Am 08.06.2016 18:53,

Re: [Emc-users] USB flash drive issue

2016-05-12 Thread Peter Blodow
How about unmounting the stick first before ejecting? Peter Am 12.05.2016 16:50, schrieb Jim Craig: > All, > > I found an issue that I think is a bug but would like feedback before I > post it on the GitHub issue list. > > I was using a USB flash drive to transfer files from my CAD/CAM pc to >

Re: [Emc-users] Cutting cast iron with a dry diamond blade

2016-05-11 Thread Peter Blodow
Gene, cast iron is easy to cut, mill and turn because it contains lots of carbon, better known as graphite which is a natural solid lubricant. Using water in addition, if any, is merely for cooling and carrying away the debris. However, if the casting has been cooled very rapidly, it may be

Re: [Emc-users] 7mmx1.0 decently hard cap screw, how scarce are they?

2016-05-09 Thread Peter Blodow
I made some M35 taps by hand years ago when I built my observatory, it took two persons, though. Peter Am 09.05.2016 22:23, schrieb Adam McLeod: > If you are lacking torque, another option is to only run the tap in to > your first peck, then hand tap the rest. There should be enough there > to

Re: [Emc-users] 7mmx1.0 decently hard cap screw, how scarce are they?

2016-05-08 Thread Peter Blodow
Gene, M7 screws are as rare as white raven since this thread is only printed in fine italics the DIN book. The only place I know of them being used is for fastening the cooler fan of some Renault vehicles, but merely in left handed version. No kidden. The French are supposed to use M7 more

Re: [Emc-users] Special cables

2016-04-18 Thread Peter Blodow
Pretty good mailgroup cooperation! Peter Am 18.04.2016 19:31, schrieb Dave Cole: > On 4/18/2016 12:44 PM, andy pugh wrote: >> On 18 April 2016 at 17:27, Peter Blodow <p.blo...@dreki.de> wrote: >>> Use Oilflex cable, the only >>> manufacturer I know is

Re: [Emc-users] Special cables

2016-04-18 Thread Peter Blodow
Andy, any PVC cable will be damaged by oil environment as the softeners (phthalates) are dissolved or washed out by the oleic acids and oleates, hardening the insulation and thus adding flexure strain to the copper strands. Caoutchouc (india rubber or synthetic rubber) cables will in turn

Re: [Emc-users] Replacing Fanuc controller on Johnford VMC-500 mill

2016-04-10 Thread Peter Blodow
actual hardware server.This was done supposedly to minimize > spam coming from their network, but I think it has been ineffective > other than to inhibit legitimate users of their services. > > Dave > > On 4/10/2016 6:41 AM, Peter Blodow wrote: >> Gentlemen, >>

Re: [Emc-users] Replacing Fanuc controller on Johnford VMC-500 mill

2016-04-10 Thread Peter Blodow
friends and relatives. This costs us about 20 Euros per year. In addition, we have more than 2 GB web space per acount. Anyone can do that. Peter Blodow On Sunday 10 April 2016 04:15:57 Gregg Eshelman wrote: >> Links got stripped. Search eBay and ye shall find. :) > --- Diese E-Mail

Re: [Emc-users] Modbus wiring

2016-04-01 Thread Peter Blodow
together on a cable way... I was one of these customers who urged the companies and the DIN authorities to use easily identifiable cables for building control. Peter Blodow Am 01.04.2016 21:07, schrieb Dave Cole: > Profibus is basically an RS485 network as well. I have no idea why > the

Re: [Emc-users] Spur gear transmission

2016-03-02 Thread Peter Blodow
If the blue and red arrows are to signify direction of rotation, there is a booboo in the gear drawing, they must be of opposite rotation. Peter Am 02.03.2016 15:52, schrieb Tomaz T.: > I'm working on design and analysis of spur gear transmission with the help of > Solidworks. What I need to do

Re: [Emc-users] Stake in ball screw Cincinnati Arrow

2016-02-29 Thread Peter Blodow
It wasn't the recycling, but certain softening compounds in PVC were suspected to cause cancer and reduced by law. This war aimed at children's toys and other playstuff, but hit wire insulation as well (though nobody would use wire insulation for a lolly). Furthermore, machine oil and above

Re: [Emc-users] Any idea how they machine these?

2016-02-08 Thread Peter Blodow
In other words, you pretend to cut a left-hand thread but have the machine run in reverse so it turns out right hand? Peter Blodow Am 08.02.2016 11:42, schrieb Marcus Bowman: > On 8 Feb 2016, at 10:04, andy pugh wrote: > >> On 7 February 2016 at 23:37, Marcus Bowman &g

Re: [Emc-users] Prempt RT on Linux Mint

2016-02-03 Thread Peter Blodow
Yeah, and these "skewy" bits were the reason why in the days of parallel bus connections all operations had to be acknowledged on separate wires so it was made sure the bits had arrived correctly. This made connections slow, but terribly reliable. The DEC computer series like the VAXes were an

Re: [Emc-users] Mesa Reseller in America

2016-02-01 Thread Peter Blodow
Congratulations, John! Wish someone would have the guts to do that here in old Germany, too! Peter Am 01.02.2016 23:14, schrieb John Thornton: > I just want to announce that I'm going to be a Mesa Electronics reseller > in America. I just got conformation on my first stocking order should be >

Re: [Emc-users] collets for this motor?

2016-01-31 Thread Peter Blodow
I can very well understand Gene's feelings :-) This method of fastening chucks was used before self-centering chucks were introduced, chucks weren't supposed to be changed a lot at all. It has been used on dividing heads longer than on lathes and has long been replaced by the camlock system.

Re: [Emc-users] VFD

2016-01-30 Thread Peter Blodow
Hello Gene, R,S and T are just the traditional names of the incoming 3-phase mains supply, very common over here, but out of date. They were replaced by L1, L2, L3. This comes from the usual motor or transformer hookup. U,V, W were the motor (or transf.) leads while X,Y,Z were the ends of the

Re: [Emc-users] Calculating thread engagement [Was: Rigid tapping speed advice]

2016-01-25 Thread Peter Blodow
Erik, better let's be it as it is with metric thread values. If you are selling things over here containing non-DIN/ISO threads (and other things), you will be liable for all damage that could occur with them in ordinary use and you will have to prove that your threads are just as good as

Re: [Emc-users] Calculating thread engagement [Was: Rigid tapping speed advice]

2016-01-25 Thread Peter Blodow
night Peter Am 25.01.2016 16:07, schrieb Erik Christiansen: > On 25.01.16 14:28, Peter Blodow wrote: >> I have run a machine shop with up to twenty workers for 36 years and I >> never heard about percentage of engagement etc. > Peter, > > On the 10.2mm hole for M12x1.75, given

Re: [Emc-users] Rigid tapping speed advice

2016-01-24 Thread Peter Blodow
Erik, I don't know wat table you were glancing at, but here is the table from Europes No:1 tool seller, Hoffmann Group (http://www.gewinde-norm.de/metrisches-iso-gewinde-din-13.htm), listing metric ISO / DIN13 threads: Thread PitchCore diam. bolt Core diam. nut Drill

Re: [Emc-users] Rigid tapping speed advice

2016-01-24 Thread Peter Blodow
Peter Blodow: > Erik, I don't know wat table you were glancing at, but here is the table > from Europes No:1 tool seller, Hoffmann Group > (http://www.gewinde-norm.de/metrisches-iso-gewinde-din-13.htm), listing > metric ISO / DIN13 threads: > > Thread PitchCore di

Re: [Emc-users] Rigid tapping speed advice

2016-01-23 Thread Peter Blodow
Tom, the formula for drilling for metric threads is simple: nominal thread diameter minus the pitch, e.g. 12 - 1.5 = 10.5 mm for M12, or 6 - 1 = 5 mm for M6 etc. Peter, Am 22.01.2016 18:43, schrieb tom-...@bgp.nu: > This is the tap I am using: >

Re: [Emc-users] A correction to Re: Rigid tapping speed advice

2016-01-23 Thread Peter Blodow
Erik, the drill sizes you are using are all 0.2 to 0.4 mm too large, especially with the small values M2 to M6 where it hurts the most. The resulting theads have got to be too loose, easy to overtighten. Don't use complicated formulas, especially not percent calculatations in public, as my

Re: [Emc-users] Rigid tapping speed advice

2016-01-23 Thread Peter Blodow
Old fairy tale, fact ist that brass (depending on the zinc content) needs a lower cutting angle then steel, both tools ought to be as sharp edged as possible. For holes in brass larger than 10 mm, I use drill bits with a 90° edge (broken edge, as we say) since a 12 mm bit cougth once and

Re: [Emc-users] Rigid tapping speed advice

2016-01-23 Thread Peter Blodow
-Satz-HSS-E-Nr-114450-mit-Kassette-1-10-GARANT/p/115320 Some of them are a bit shorter now from sharpening, very few were broken and have been replaced. Never compromise on tools. Peter Am 23.01.2016 17:53, schrieb Gene Heskett: > On Saturday 23 January 2016 06:18:55 Peter Blodow wrote: >

Re: [Emc-users] Rigid tapping speed advice

2016-01-23 Thread Peter Blodow
Gene, 0.091" (=2,3 mm) would be perfectly in the DIN / ISO range. I use 2.4 mm for easy working if strength is not the issue. More, my drills are all produced a little under their nominal size, maybe a few hundreths, to allow for de-centering of the cutting blades in order to give a correct

Re: [Emc-users] Rewiring the BP Again

2016-01-11 Thread Peter Blodow
Mark, it surely was interesting, when I drove to Traverse City last time, some 50 years ago, when I was temporarily a Michigander. Was a nice skiing weekend. Peter Am 11.01.2016 13:34, schrieb Mark: > 8 Degrees and snowing here in Grayling, MI this morning. I have to > drive over to Traverse

Re: [Emc-users] Non-rotary gear cutting Re: Lost fractions of a step

2016-01-04 Thread Peter Blodow
threads, after closely examinig it already after the first futile attempt. Besides, the graziano is able of 440 mm diameter threads :-)) Peter Am 04.01.2016 14:15, schrieb andy pugh: > On 4 January 2016 at 12:57, Peter Blodow <p.blo...@dreki.de> wrote: > >> I have run

Re: [Emc-users] Non-rotary gear cutting Re: Lost fractions of a step

2016-01-04 Thread Peter Blodow
Andy, I have run my Graziano lathe with the frequency converter as low as 5 Hz (for a delicate job of threading) - I wouldn't have liked being the one to stop or slow down the lathe by mechanical load or attempting to brake the chuck even at 8 rev./min! Only thing is, at length I have to watch

Re: [Emc-users] Lost... - New Haven Clock Screws

2016-01-03 Thread Peter Blodow
It's easy to determine the size of a metric screw, just measure across the threads with a caliper. M3.5 is unlikely, because that size is not listed in bold print in the DIN list (as is M4.5, M7, M9, M14, M18 etc.). It is, AFAIK, only used in low current (<16 A) electric equipment such as wall

Re: [Emc-users] To Peter C Wallace

2016-01-01 Thread Peter Blodow
Andy, this idea is good and saves space, but has limitations as to the bus speed. Siemens built their desk top PCs (in fact, there were no others) like this in the 1990ies and dropped it as processing speed rose rapidly in these days. The L-shaped connector board had too much impedance for the

Re: [Emc-users] Lathe spindle encoder drive

2015-12-08 Thread Peter Blodow
Andy, yes, I've seen that video. If it weren't about showing the principle, I dare say there are simpler ways to mill a hob like this. As a matter of fact, I am just now up to make a similar (but larger) hob for a lawn mower drive (but the stone age way with a divider head, for reasons of

Re: [Emc-users] Need a better wm/Gui for my machines

2015-11-11 Thread Peter Blodow
Gene, telling from my rusty experience from waybackwhen (and the RCA transmitting tube manual of 1962) I suspect that the one glowing tube has too much positive DC grid voltage, maybe resulting from a faulty driver (suspect: capacitors). The ouput power you are measuring comes from the other

Re: [Emc-users] tool changers

2015-10-30 Thread Peter Blodow
Gentlemen, my old little Steinel vertical mill, older than the Black Forest, has a MT3 (MK3 in German). Above this, the bore is drilled hollow 14 mm all the way through to the top of the machine. The collet holder (1 - 20mm) that came with it has M12 inside threads at the end and can be

[Emc-users] Dubious mails

2015-10-25 Thread Peter Blodow
I discarded all these "New message" mails without opening because they might be spoof, virus or something else of that kind. Peter --- Diese E-Mail wurde von Avast Antivirus-Software auf Viren geprüft. https://www.avast.com/antivirus

Re: [Emc-users] Mice. The furry ones. Re: using tool table offsets with G41 or 42

2015-10-18 Thread Peter Blodow
Gene, Red Bull is an Austrian Brand, they make it by the railway train (literally, I've seen one!) not far from where we live. It contains also a lot of taurine. Don't know about the famed and fabulous manpower enhancing properties Peter Am 18.10.2015 15:19, schrieb Gene Heskett: >

Re: [Emc-users] A lot of input/output. Cheap (Profibus)

2015-09-21 Thread Peter Blodow
Gentlemen, be careful with Profibus, there are different tastes of it. Especially the one designed for building automation will not very well suit our needs. But, certainly, this is highly professional technology, extremely noise proof even at long distances of several hundred meters. Peter Am

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