Re: [Emc-users] EDM machining, g-code

On Sunday 25 December 2016 14:48:35 Nicklas Karlsson wrote: > You only used Linuxcnc? Or do you have other g-codes or *-codes? > Thats it, I was the intelligence adjusting the feed rate to keep the average current between 1 and 2 amps. :) > On Sun, 25 Dec 2016 14:30:19 -0500 > > Gene Heskett

Re: [Emc-users] EDM machining, g-code

You only used Linuxcnc? Or do you have other g-codes or *-codes? On Sun, 25 Dec 2016 14:30:19 -0500 Gene Heskett wrote: > On Sunday 25 December 2016 09:54:37 Nicklas Karlsson wrote: > > > > > Happen to know any more or less g-codes for these motions? g-codes > > > > for

Re: [Emc-users] EDM machining, g-code

On Sunday 25 December 2016 09:54:37 Nicklas Karlsson wrote: > > > Happen to know any more or less g-codes for these motions? g-codes > > > for control of flush? g-codes for control of EDM power source? > > > > ... > > i uploaded mcodes before with python commands to change edm > > generator

Re: [Emc-users] EDM machining, g-code

> > Happen to know any more or less g-codes for these motions? g-codes for > > control of flush? g-codes for control of EDM power source? > ... > i uploaded mcodes before with python commands to change edm generator > on/off/current/polarity I could remember I god some g-code suitable for EDM

Re: [Emc-users] EDM machining --> g-codes

I started to write down whatever g-codes I can find in different dialects in table form. 1. Linuxcnc, will also look for the ones you supplied. 2. Sodick wire EDM. 3. Charmilles sinker EDM. Yesterday I figured out three dimensions where required so I started to enter in a database but

Re: [Emc-users] EDM machining, user interface, g-code, fork on repository

Nicklas, i think i presume too much edm experience, sorry for positioning, most edm systems use a low power sensing circuit really low, like 12 V at 100ma is plenty if you are positioning, this low power sense circuit is always in operation if you are cutting, the spark generator is in operation

Re: [Emc-users] EDM machining, user interface

> "halcmd show pin" will tell you which pins actually exist. Yes it does. > Is it possible that the HAL is trying to connect pins before they > exist? Then i copied the row from "halcmd show pin" it worked. Problem is manual claim it should be gladevcp.speedcontrol1-value while in reality it

Re: [Emc-users] EDM machining, user interface, g-code, fork on repository

> Merry Christmas to all > > Iam presuming we could use the probe sequencing as a way to find centre of > a hole , or find an edge > in the same way as a mill , just inhibit any power or in the case of a wire > keep it stationary The sparc generator have the potential to sense the voltage and I

Re: [Emc-users] EDM machining, user interface

"halcmd show pin" will tell you which pins actually exist. Is it possible that the HAL is trying to connect pins before they exist? With embedded tabs it is best to connect them up with a HAL file loaded by the -H option: http://linuxcnc.org/docs/2.7/html/man/man1/gladevcp.1.html On 23/12/2016,

Re: [Emc-users] EDM machining, user interface

> > Only problem I have so far > > is to get numeric values from SpeedControl widget, it complain it can't find > > the pin. > > Glade controls tend to have two HAL pins, gladevcp.pin-s and > fladevcp.pin-f which are the value as a signed int and as a float. > Perhaps you have omitted to -s or

Re: [Emc-users] EDM machining, user interface

On 22/12/2016, Nicklas Karlsson wrote: > Only problem I have so far > is to get numeric values from SpeedControl widget, it complain it can't find > the pin. Glade controls tend to have two HAL pins, gladevcp.pin-s and fladevcp.pin-f which are the value as a signed

Re: [Emc-users] EDM machining, user interface, g-code, fork on repository

Sarah Hello On 12/23/16 18:24, Sarah Armstrong wrote: > Merry Christmas to all > > Iam presuming we could use the probe sequencing as a way to find centre of > a hole , or find an edge > in the same way as a mill , just inhibit any power or in the case of a wire > keep it stationary edm

Re: [Emc-users] EDM machining, user interface, g-code, fork on repository

Possibility to use the same is why I asked. TJ Powderly proposed some, I have manual for Sodick wire EDM and Charmilles ordinary EDM at home. I have never used an EDM machine but work profesionally with software development. 2016-12-23 12:24 GMT+01:00 Sarah Armstrong

Re: [Emc-users] EDM machining, user interface, g-code, fork on repository

Merry Christmas to all Iam presuming we could use the probe sequencing as a way to find centre of a hole , or find an edge in the same way as a mill , just inhibit any power or in the case of a wire keep it stationary is their any edm machines actually using gcode / m codes? perhaps we can use

Re: [Emc-users] EDM machining, user interface, g-code, fork on repository

I will look for the mcodes you uploaded. With g-codes I more or less thought about all the different letters although which letter to use is rather important. 2016-12-23 3:29 GMT+01:00 TJoseph Powderly : > Merry Christmas Nicklas > > On 12/23/16 05:12, Nicklas Karlsson wrote: >

Re: [Emc-users] EDM machining, user interface, g-code, fork on repository

Merry Christmas Nicklas On 12/23/16 05:12, Nicklas Karlsson wrote: > User interface seems rather simple although I have some problem with widgets > to get numbers into linuxcnc. I almost got something useful to test machine > manually but for real machining programming is needed. > > Happen to

Re: [Emc-users] EDM machining, user interface, g-code, fork on repository

User interface seems rather simple although I have some problem with widgets to get numbers into linuxcnc. I almost got something useful to test machine manually but for real machining programming is needed. Happen to know any more or less g-codes for these motions? g-codes for control of

Re: [Emc-users] EDM machining, user interface

Thanks! I guess I have to start dig thru manual to figure out how old machine is run. I have a few hours each night and tonight I would be happy if I could a gladevcp panel up and running. On Tue, 20 Dec 2016 23:54:19 +0700 TJoseph Powderly wrote: > Nicklas > 'ram' is

Re: [Emc-users] EDM machining, user interface

Nicklas 'ram' is another way to say 'sink' eroding, the kind that uses a shaped tool 'wire' is for cutting thru a plate 'tube' or 'drill' or hole popper' for holes 'grinder' for for open surfaces multiple solenoids can be used to control flow if a series of ports are on a single feeding pipe then

Re: [Emc-users] EDM machining, user interface

Nicklas hello 2 basic motion types are useful ( at least 2 ) 1 is jumping, a way to remove debris, the debris generated in erosion needs to be removed, it lowers the conduction of the environment and disturbs a voltage drop based control flushing thru the tool is very good but it is

Re: [Emc-users] EDM machining, user interface

> I have a large Makino wire EDM with a working envelope of 1200x900x300mm with > UV axes for tapered cutting. I also am looking to update the machine but > have other projects in front of it. One neat feature of my wire machine is > edge finding and locating the center of a hole if

Re: [Emc-users] EDM machining, user interface

Hi Nicklas, I have a large Makino wire EDM with a working envelope of 1200x900x300mm with UV axes for tapered cutting. I also am looking to update the machine but have other projects in front of it. One neat feature of my wire machine is edge finding and locating the center of a hole if

Re: [Emc-users] EDM machining, user interface

Yes I am retrofitting an old EDM machine. It have been a year two before I started but finally I have all the needed hardware. As is now I am starting to think about user interface and could vaguley remember somebody talked about it earlier, worst problem is probably I am not totally sure what is

Re: [Emc-users] EDM machining, user interface

Ni⁣cklas, Could you give me details etc, and I can get up to date, and join the discussion Sarah Sent from BlueMail ​ On 19 Dec 2016, 20:16, at 20:16, Nicklas Karlsson wrote: >Finally I have all the necessary hardware parts, some are still on >desktop not

Re: [Emc-users] EDM machining, user interface

Nicklas congratualtions of course I would test I am off this morning for a week but would look at the new year Merry Christmas & Happy New Year to you & all the developers of Linuxcnc tomp tjtr33 On 12/20/16 03:11, Nicklas Karlsson wrote: > Finally I have all the necessary hardware parts, some

[Emc-users] EDM machining, user interface

Finally I have all the necessary hardware parts, some are still on desktop not connected to machine but they are tested to work: servo drives, digital IO, spark generator. Right now I start to think about user interface and as I remember someone started work on this earlier. If anyone is

Re: [Emc-users] EDM gap control

Hello Nicklas, On 08/21/16 23:08, Nicklas Karlsson wrote: Hello Nicklas, On 08/17/16 00:40, Nicklas Karlsson wrote: >>> I have tried to use voltage to control EDM gap distance but are not sure >>> this is the correct method. I found a paper there someone suggested gap >>> resistance is a non

Re: [Emc-users] EDM gap control

> Hello Nicklas, > > On 08/17/16 00:40, Nicklas Karlsson wrote: > > I have tried to use voltage to control EDM gap distance but are not sure > > this is the correct method. I found a paper there someone suggested gap > > resistance is a non linear function of gap distance. > the gap

Re: [Emc-users] EDM gap control

Hello Nicklas, On 08/17/16 00:40, Nicklas Karlsson wrote: > I have tried to use voltage to control EDM gap distance but are not sure this > is the correct method. I found a paper there someone suggested gap resistance > is a non linear function of gap distance. the gap resistance is used

[Emc-users] EDM gap control

I have tried to use voltage to control EDM gap distance but are not sure this is the correct method. I found a paper there someone suggested gap resistance is a non linear function of gap distance. They also stated ignition delay time depend on gap distance. I am not totally sure if there is a

Re: [Emc-users] EDM with continuous wire?

st I can come up with without lying. > -- Ralph > > From: Gene Heskett [ghesk...@shentel.net] > Sent: Friday, July 22, 2016 10:29 AM > To: Ralph Stirling > Subject: Re: [Emc-users] EDM with continuous wire? > > On Friday 22 July 20

Re: [Emc-users] EDM with continuous wire?

On Thu, Jul 21, 2016 at 9:13 PM, Gene Heskett wrote: > > I did that, but on importing the pix, intending to put some captions in > the pix, I found that wilber's text button on the menu doesn't work. That's odd. What exactly are you doing? GIMP changes around Ithe location

Re: [Emc-users] EDM with continuous wire?

On Thursday 21 July 2016 11:35:54 Gene Heskett wrote: > On Thursday 21 July 2016 09:16:58 Ralph Stirling wrote: > > Perhaps a video would be unnecessary, but some photos > > would sure help us curious folk better visualize your setup. > > It sounds like a very handy system you rigged up, and not

Re: [Emc-users] EDM with continuous wire?

Jon hello On 07/21/16 21:32, Jon Elson wrote: > On 07/21/2016 12:16 AM, Gene Heskett wrote: >> On Thursday 21 July 2016 00:00:12 TJoseph Powderly wrote: >> >>> Gene >>> once again your post title ran me off as i took it to be correct >>> your post is titled 'continuous wire' >>> not disk,

Re: [Emc-users] EDM with continuous wire?

On Thursday 21 July 2016 09:16:58 Ralph Stirling wrote: > Perhaps a video would be unnecessary, but some photos > would sure help us curious folk better visualize your setup. > It sounds like a very handy system you rigged up, and not > very difficult. > > Thanks, I'll take the camera out and

Re: [Emc-users] EDM with continuous wire?

tungsten moly wire is used for those reciprocating wedm's not a loop, but unwound slow thru cut, then rapid rewound during a pause when feed spool is sensed to be low tiny stuff but tough and re-usable all tools have pros & cons this stuff is triangular, tough and hell on guides (carbide pins )

Re: [Emc-users] EDM with continuous wire?

On 21 July 2016 at 15:32, Jon Elson wrote: > He used a molybdenum > wire that ran back and forth between large rollers. So, he probably had > something like 20 feet of wire in the machine, and it reversed when it > neared either end. I used a diamond-wire saw working on

Re: [Emc-users] EDM with continuous wire?

On 07/21/2016 12:16 AM, Gene Heskett wrote: > On Thursday 21 July 2016 00:00:12 TJoseph Powderly wrote: > >> Gene >> once again your post title ran me off as i took it to be correct >> your post is titled 'continuous wire' >> not disk, hahaha >> > My bad Tomp, I thought about it, but understood

Re: [Emc-users] EDM with continuous wire?

: Thursday, July 21, 2016 4:47 AM To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] EDM with continuous wire? On Thursday 21 July 2016 03:05:51 TJoseph Powderly wrote: > sounds great gene > yes you were 'negative polarity' > ( in usa the old elox company called this standard

Re: [Emc-users] EDM with continuous wire?

On Thursday 21 July 2016 03:05:51 TJoseph Powderly wrote: > sounds great gene > yes you were 'negative polarity' > ( in usa the old elox company called this standard ) > brass works fine too, more forgiving > if the tool gets black you are getting closer to lo wear > tho low wear for brass is

Re: [Emc-users] EDM with continuous wire?

sounds great gene yes you were 'negative polarity' ( in usa the old elox company called this standard ) brass works fine too, more forgiving if the tool gets black you are getting closer to lo wear tho low wear for brass is like high wear for graphite you're using an rc generator... so

Re: [Emc-users] EDM with continuous wire?

On Thursday 21 July 2016 00:00:12 TJoseph Powderly wrote: > Gene > once again your post title ran me off as i took it to be correct > your post is titled 'continuous wire' > not disk, hahaha > My bad Tomp, I thought about it, but understood quickly that such a machine was way above my pay

Re: [Emc-users] EDM with continuous wire?

On Wednesday 20 July 2016 22:43:21 TJoseph Powderly wrote: > dont spin too fast > SFM is pretty low ( compared to regular grinding ) > if too fast you hear the sparking get weak > (try slower to test quick ) > the spark can get 'blown out' ( as in candle ) if you move too fast > This 2.875" disk

Re: [Emc-users] EDM with continuous wire?

On Wednesday 20 July 2016 22:34:00 TJoseph Powderly wrote: > Hello Gene > Using copper tools to cut steel ( all other variable untouched ) > Positive tool is lower wear & slower cut & rougher finish > Negative tool is higher wear & faster cut & finer finish > hth > tomp > tjtr33 No copper

Re: [Emc-users] EDM with continuous wire?

Gene in this vid https://www.youtube.com/watch?v=ccYE0ICp5F8 he shows a better pyvcp panel ( and shows he's likely using a parport) AND hahaha hes using an old AGie 60L generator for power AND a home-made 'crossbow' wire feed on a stock sinker ( with linuxcnc moving the slides ) got a Polish

Re: [Emc-users] EDM with continuous wire?

Gene once again your post title ran me off as i took it to be correct your post is titled 'continuous wire' not disk, hahaha if you wanted continuous wire ( reciprocating versus single direction, using capstan windlass rewinder) then look at https://www.youtube.com/watch?v=qoV8UXtLYmE Andre

Re: [Emc-users] EDM with continuous wire?

dont spin too fast SFM is pretty low ( compared to regular grinding ) if too fast you hear the sparking get weak (try slower to test quick ) the spark can get 'blown out' ( as in candle ) if you move too fast AGie EDM grinders were used to slot sewing machine carbide plates and the wheel was

Re: [Emc-users] EDM with continuous wire?

Hello Gene Using copper tools to cut steel ( all other variable untouched ) Positive tool is lower wear & slower cut & rougher finish Negative tool is higher wear & faster cut & finer finish hth tomp tjtr33

Re: [Emc-users] EDM with continuous wire?

On Wednesday 20 July 2016 14:30:43 dave wrote: > Hi gene, > I may have come in too late: i.e. > Day late and a dollar short. Welcome to the real world. > IIUC you want a slot. EDM and a copper disk should do this > quite nicely. Hope you get something working. > > Dave I should have it in

Re: [Emc-users] EDM with continuous wire?

On Wednesday 20 July 2016 14:14:21 andy pugh wrote: > On 20 July 2016 at 18:29, Gene Heskett wrote: > > I don't have a mill spindle with the torque enough to turn one of > > those at a good enough feed rate to keep it cutting clean, and slow > > enough it won't burn dull in

Re: [Emc-users] EDM with continuous wire?

Hi gene, I may have come in too late: i.e. Day late and a dollar short. Welcome to the real world. IIUC you want a slot. EDM and a copper disk should do this quite nicely. Hope you get something working. Dave On 07/20/2016 10:29 AM, Gene Heskett wrote: > On Wednesday 20 July 2016 13:12:09 andy

Re: [Emc-users] EDM with continuous wire?

On 20 July 2016 at 18:29, Gene Heskett wrote: > I don't have a mill spindle with the torque enough to turn one of those > at a good enough feed rate to keep it cutting clean, and slow enough it > won't burn dull in seconds. You could use the lathe, I suspect. -- atp "A

Re: [Emc-users] EDM with continuous wire?

On Wednesday 20 July 2016 13:12:09 andy pugh wrote: > On 20 July 2016 at 17:34, Rick Lair wrote: > >> http://www.mcmaster.com/#=13d62q6 > > > > Bad link, just goes to Mcmasters main page, > > Search for "slitting saws" then. I don't have a mill spindle with the torque

Re: [Emc-users] EDM with continuous wire?

On 20 July 2016 at 17:34, Rick Lair wrote: >> http://www.mcmaster.com/#=13d62q6 > Bad link, just goes to Mcmasters main page, Search for "slitting saws" then. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of

Re: [Emc-users] EDM with continuous wire?

On 07/20/2016 11:52 AM, andy pugh wrote: > On 20 July 2016 at 16:41, Gene Heskett wrote: >> So I am thinking of other ways to do this. > http://www.mcmaster.com/#=13d62q6 > Bad link, just goes to Mcmasters main page, -- Thanks Rick Lair Superior Roll & Turning LLC 399

Re: [Emc-users] EDM with continuous wire?

On 20 July 2016 at 16:41, Gene Heskett wrote: > So I am thinking of other ways to do this. http://www.mcmaster.com/#=13d62q6 -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and

[Emc-users] EDM with continuous wire?

Greetings everybody; The next step in making this shaft extension will be slitting the socket so that a tapered nut matching the tapered threads can compress the resulting fingered socket. I did this once before using the larger of the dremel diamond disks, but was not at all happy with the

Re: [Emc-users] EDM

On 05/01/2016 01:30 AM, Nicklas Karlsson wrote: > I had some discussions here before about gap control and think Pete > participated. Right now I am at the spot there I should try gap control on > real machine. > If you don't know about Ben Fleming, he wrote a couple books with EDM designs, and

Re: [Emc-users] EDM

I had some discussions here before about gap control and think Pete participated. Right now I am at the spot there I should try gap control on real machine. > You might try Petegruende...@att.net > Years ago he put together a sinker driven by basic code. One of the > demo's was a

Re: [Emc-users] EDM

You might try Petegruende...@att.net Years ago he put together a sinker driven by basic code. One of the demo's was a thread cut in a file. ;-) There is a massive thread on emc_dev about feed and gap control. Also you might want to contact Steve Stallings as he did some work on a board

[Emc-users] EDM

Finally I start to get together both hardware and software including generator for my EDM machine. I work with electronics and are new to mechanical machining and EDM in particular. Do anybody know if anything more than adaptive feed rate including backwards have been done for EDM? Nicklas

Re: [Emc-users] EDM Pete G

On 04.03.13 19:44, TJoseph Powderly wrote: At the time I got your email, I was writing oneshots for arduino, triggered by the beginning of current flow, an OnTimeShot runs, then a single OffTimeShot. This makes each tiny crater a uniform size, where a constant on/off/on/off will vary in

Re: [Emc-users] EDM Pete G

On 03/05/2013 02:48 AM, Erik Christiansen wrote: Is that diameter variation with depth, and if it's due to constant mark/space ratio, are you adjusting the timing ratio of the one-shots to achieve compensation? Erik, hello, Basically, yes :) The depth and diameter is governed by the

Re: [Emc-users] EDM Pete G

Jeez tomp, that thing got a flux capacitor in it yet? Hell I'd just piss on the spark plug if I thought it would do any goodLOL that is some deep stuff you are playing with man glad and amazed that you are able to do it with linuxcnc. Keep on Merlin's on that is some very

[Emc-users] EDM Pete G

On 03/04/2013 08:40 AM, sam sokolik wrote: oops - here are the pictures of his edm work http://electronicsam.com/images/Pete_G/edm.jpg http://electronicsam.com/images/Pete_G/edm_xc.jpg sam On 3/4/2013 8:30 AM, sam sokolik wrote: I had a little CNC get-together Saturday mainly to help

Re: [Emc-users] EDM Pete G

On Monday 04 March 2013 22:13:36 TJoseph Powderly did opine: On 03/04/2013 08:40 AM, sam sokolik wrote: oops - here are the pictures of his edm work http://electronicsam.com/images/Pete_G/edm.jpg http://electronicsam.com/images/Pete_G/edm_xc.jpg sam On 3/4/2013 8:30 AM, sam

Re: [Emc-users] EDM

Jon Elson wrote: Gene Heskett wrote: On Tuesday 21 August 2007, Jon Elson wrote: I think with a hollow electrode with a drip feed scheme through the electrode it would go a lot faster. Theres always that 'yabut' Jon, in this case yabut where can I find one of those? :) How about a

Re: [Emc-users] EDM

Gene, i forgot to say to connect the neg lead to the tool and the positive to the work in this old rc way , it is more efficient to run 'negative head'. it gets you a slightly larger gap and speed at the expense of more wear.

Re: [Emc-users] EDM

On Tuesday 21 August 2007, Jon Elson wrote: Gene Heskett wrote: Understood. In playing tonight with 25 volts probably 100 ma average, I found that spinning the electrode at around 1k rpms seemed to add enough agitation to the oil that I could use it all up and go about 30 thou before I had

Re: [Emc-users] EDM

On Tuesday 21 August 2007, Stuart Stevenson wrote: Gentlemen, We cheat. The edm uses through the spindle/tool flushing and dielectric oil. The electrode is a copper tube. The tube is not completely hollow. The tube has a web in the center of it. This allows it to remove the whole plug instead

Re: [Emc-users] EDM

commercial unit, 1mmdia tubing, average current near 25 amps is acceptable ( not optimal ) so 1 amp is dang slow tomp - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop.

Re: [Emc-users] EDM

Gene Heskett wrote: On Tuesday 21 August 2007, Jon Elson wrote: I think with a hollow electrode with a drip feed scheme through the electrode it would go a lot faster. Theres always that 'yabut' Jon, in this case yabut where can I find one of those? :) Hollow electrode? I get various

Re: [Emc-users] EDM

On Tuesday 21 August 2007, Jon Elson wrote: Gene Heskett wrote: On Tuesday 21 August 2007, Jon Elson wrote: I think with a hollow electrode with a drip feed scheme through the electrode it would go a lot faster. Theres always that 'yabut' Jon, in this case yabut where can I find one of

Re: [Emc-users] EDM question from a noobie at it

On Monday 20 August 2007, Jon Elson wrote: Gene Heskett wrote: Greetings everybody; I was working on the frame for my new z axis drive for that micro-mill, and have managed now to break off not one, but 2, 6-nc32 taps in the holes drilled into the edge of a piece of 1/4x1.5 steel bar. I now

Re: [Emc-users] EDM question from a noobie at it

Gene - I think that if you were to build a dam around the part with modeling clay and fill with kerosene might help speed things up. Keep in mind that kero is flammable so take care. Just my 2 cents worth - I've never done it. By the way, I submitted an article to Digital Machining

Re: [Emc-users] EDM question from a noobie at it

Hi Gene, Paraffin oil aka lamp oil is pretty close to EDM dielectric. Using 70 -90 V for your DC supply and something on the order of 10 uf with a resistor in the 20-50 ohm range should get you an RC circuit that will be close. A bit if component substitution will get you to an acceptable

Re: [Emc-users] EDM

Gentlemen, I asked our EDM operator what parameters he would use with your setup to get the 6/32 tap out of the steel. He set it up in our LeBlond Makino EDNC 65. His recommendation is 30 volts DC, 1 amp and 10 rpm, dry with compressed air. The fluid, whether it is dielectric petroleum

Re: [Emc-users] EDM question from a noobie at it

On Monday 20 August 2007, Dave Engvall wrote: Hi Gene, Paraffin oil aka lamp oil is pretty close to EDM dielectric. How about fuel oil, as in what you'd feed one of those horizontal tank heaters? It seems as usable as anything else I've got 5 gallons of it getting old, cuz I fired it up in

Re: [Emc-users] EDM

On Monday 20 August 2007, Stuart Stevenson wrote: Gentlemen, I asked our EDM operator what parameters he would use with your setup to get the 6/32 tap out of the steel. He set it up in our LeBlond Makino EDNC 65. His recommendation is 30 volts DC, 1 amp and 10 rpm, dry with compressed air.

Re: [Emc-users] EDM

Gene Heskett wrote: Understood. In playing tonight with 25 volts probably 100 ma average, I found that spinning the electrode at around 1k rpms seemed to add enough agitation to the oil that I could use it all up and go about 30 thou before I had to vacuum it out and refresh it, with

Re: [Emc-users] EDM

Gentlemen, We cheat. The edm uses through the spindle/tool flushing and dielectric oil. The electrode is a copper tube. The tube is not completely hollow. The tube has a web in the center of it. This allows it to remove the whole plug instead of leaving a core. You will have the same

Re: [Emc-users] EDM question from a noobie at it

Gene Heskett wrote: Greetings everybody; I was working on the frame for my new z axis drive for that micro-mill, and have managed now to break off not one, but 2, 6-nc32 taps in the holes drilled into the edge of a piece of 1/4x1.5 steel bar. I now have the work insulated, a copper wire

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