Re: [Emc-users] EDM from scratch

EDM of one sort or another comes up every few years. Pete Grundemann(sp?) put one together. His demo was to edm threads in a file. tomp ... now in Thailand has a lot of experience in edm. tjtr33...atgmailcom Someone brought a non-working commercial wire edm to Galesburg and almost had

Re: [Emc-users] EDM from scratch

On 01/31/2021 07:22 PM, John Dammeyer wrote: I found some of the earlier articles in Home Shop Machinist Issue's May/June 1995 and September/October 1995. I do not have part 2 published in July/August 1995. However, in the 3rd part Robert Langlois describes the stepper motor operation in

Re: [Emc-users] EDM from scratch

, 2021 12:57 AM To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] EDM from scratch Hi Gerrit the difference between senkung and draht erodien generator is the pulse width in wedm 1-10uS is the entire spectrum in sink edm 1-3000uS is the spectrum in any edm that uses the very sort

Re: [Emc-users] EDM from scratch

On Mon, 1 Feb 2021 at 09:42, Thomas J Powderly wrote: (Snip the other stuff, all noted) > a use of adaptive feed wull never apprach the needed jittery advance of > edm, adaptive feed never reacts negatively, That is no longer the case. LinuxCNC now supports negative adaptive feed, introduced

Re: [Emc-users] EDM from scratch

troller (EMC)' > Subject: Re: [Emc-users] EDM from scratch > > Problem solved. > > -Original Message- > From: John Dammeyer > Sent: January 31, 2021 2:35 PM > To: 'Enhanced Machine Controller (EMC)' > Subject: Re: [Emc-users] EDM from scratch > > Rats. I'm mi

Re: [Emc-users] EDM from scratch

Hi Gerrit the difference between senkung and draht erodien generator is the pulse width in wedm 1-10uS is the entire spectrum in sink edm 1-3000uS is the spectrum in any edm that uses the very sort pulse, it is important that the current shut-off be complete and very fast ( all inductanc

Re: [Emc-users] EDM from scratch

Hi Andy if your path is a straight line dont use linuxcnc , just hal use steppers to advance use an opamp window comparator with a too high and a too low threshold when your measured voltage is too high advance 1 step else dont move, just wait if too low, turn off the power , maybe retract no

Re: [Emc-users] EDM from scratch

Problem solved. -Original Message- From: John Dammeyer Sent: January 31, 2021 2:35 PM To: 'Enhanced Machine Controller (EMC)' Subject: Re: [Emc-users] EDM from scratch Rats. I'm missing #169 for some reason. The series I was thinking about was in issues #57..#60 and with addendums

Re: [Emc-users] EDM from scratch

isser [mailto:gerr...@psgv.ca] > > Sent: January-31-21 11:06 AM > > To: 'Enhanced Machine Controller (EMC)' > > Subject: Re: [Emc-users] EDM from scratch > > > > Issue 168, Oct 2010 is the first installment > > > > Gerrit > > > > -Original Mess

Re: [Emc-users] EDM from scratch

nal Message- > From: Gerrit Visser [mailto:gerr...@psgv.ca] > Sent: January-31-21 11:06 AM > To: 'Enhanced Machine Controller (EMC)' > Subject: Re: [Emc-users] EDM from scratch > > Issue 168, Oct 2010 is the first installment > > Gerrit > > -Original Message-

Re: [Emc-users] EDM from scratch

Issue 168, Oct 2010 is the first installment Gerrit -Original Message- From: John Dammeyer [mailto:jo...@autoartisans.com] Sent: January 31, 2021 1:31 PM To: 'Enhanced Machine Controller (EMC)' Subject: Re: [Emc-users] EDM from scratch Andy, Check out this page: http

Re: [Emc-users] EDM from scratch

il.com] > Sent: January-31-21 5:28 AM > To: Enhanced Machine Controller (EMC) > Subject: [Emc-users] EDM from scratch > > I have started to play around with EDM. The intention is to make an > EDM "grinder" to profile tool steel and possibly carbide cutting

Re: [Emc-users] EDM from scratch

. John Dammeyer > -Original Message- > From: andy pugh [mailto:bodge...@gmail.com] > Sent: January-31-21 5:28 AM > To: Enhanced Machine Controller (EMC) > Subject: [Emc-users] EDM from scratch > > I have started to play around with EDM. The intention is to make an >

Re: [Emc-users] EDM from scratch

Another source of information about pulse generator design: https://langfordw.pages.cba.mit.edu/desktopWEDM/electronics/ https://www.cnc.info.pl/drazenie-metoda-domowa-moje-proby-t11692-20.html (Google translate helps here:-)) Again, my focus is on wire EDM but there must be similarities

Re: [Emc-users] EDM from scratch

There might be some gems in this video? I have an interest (presently on hold) to make a wire edm so have been collecting information etc. https://www.youtube.com/watch?v=9IWWa0xCd04=9s There is also a Polish forum where someone describes their power supply as well as details on how they use

Re: [Emc-users] EDM from scratch

On Sun, 31 Jan 2021 at 16:06, Jon Elson wrote: > I made a simple EDM for tap burning type jobs a long time > ago. It used something like 36 V DC, 30 Ohm resistor and a > selection of oil-paper capacitors of 1, 2, 4 and 6 uF or > so. A common thread here seems to be that my 1000uF electrolytic

Re: [Emc-users] EDM from scratch

On 01/31/2021 07:28 AM, andy pugh wrote: I have started to play around with EDM. The intention is to make an EDM "grinder" to profile tool steel and possibly carbide cutting tools using CNC-turned profiles. A fancy commercial (and patented) EDM system was described by a tech who worked on

Re: [Emc-users] EDM from scratch

On 01/31/2021 07:28 AM, andy pugh wrote: I have started to play around with EDM. The intention is to make an EDM "grinder" to profile tool steel and possibly carbide cutting tools using CNC-turned profiles. I think that it shows promise, but only partly works. I am using a 50R resistor and a

Re: [Emc-users] EDM from scratch

On Sunday 31 January 2021 08:28:13 andy pugh wrote: > I have started to play around with EDM. The intention is to make an > EDM "grinder" to profile tool steel and possibly carbide cutting tools > using CNC-turned profiles. > > At the moment I am using a cobbled-together XY table with a couple of

Re: [Emc-users] EDM from scratch

Andy, I have been experimenting with EDM long time ago, say 25 years. I used a simple RC-circuit together with a "soft" transformer (ca.1.5 mm air gap) in order to forgive for the shorts and save fuses. All was mounted on my drill press. I gave up when I realized that without a controlled

[Emc-users] EDM from scratch

I have started to play around with EDM. The intention is to make an EDM "grinder" to profile tool steel and possibly carbide cutting tools using CNC-turned profiles. At the moment I am using a cobbled-together XY table with a couple of STMBL drives. One of the STMBL analogue inputs is used to

Re: [Emc-users] EDM forms?

On Thursday 01 August 2019 20:51:56 Gene Heskett wrote: > > If you can see why I'm only seeing a 90 degree arc in the backplot, > teach me what is wrong. Wrong K. Its running, but very very slowly. About .5 ipm And from the looks of the carbide tool I'm using for electrode, its going away

Re: [Emc-users] EDM forms?

On Thursday 01 August 2019 13:01:25 andy pugh wrote: > On Thu, 1 Aug 2019 at 16:47, Gene Heskett > wrote: > > Did that got g3 error, usual recipe, converted it back to g17, lcnc > > > bought it but back plot shows the arc as a straight line??? > That turned out to be a missing F in the G2/3

Re: [Emc-users] EDM forms?

On Thu, 1 Aug 2019 at 16:47, Gene Heskett wrote: Did that got g3 error, usual recipe, converted it back to g17, lcnc > bought it but back plot shows the arc as a straight line??? > At this point I would give up and use R-format arcs. -- atp "A motorcycle is a bicycle with a pandemonium

Re: [Emc-users] EDM forms?

On Thursday 01 August 2019 05:52:06 Gene Heskett wrote: > On Thursday 01 August 2019 02:59:37 andy pugh wrote: > > On Thu, 1 Aug 2019 at 04:36, Gene Heskett > > wrote: > > > > output of arcgenm18.py is assumeing G17. not G18. So I need to > > > > > translate the ijk into what it would be for

Re: [Emc-users] EDM forms?

On Thursday 01 August 2019 02:59:37 andy pugh wrote: > On Thu, 1 Aug 2019 at 04:36, Gene Heskett > wrote: > > output of arcgenm18.py is assumeing G17. not G18. So I need to > > > translate the ijk into what it would be for G18 motion. Is there a > > rule of thumb for that? > > G17 XY IJ > G18

Re: [Emc-users] EDM forms?

On Thursday 01 August 2019 02:59:37 andy pugh wrote: > On Thu, 1 Aug 2019 at 04:36, Gene Heskett > wrote: > > output of arcgenm18.py is assumeing G17. not G18. So I need to > > > translate the ijk into what it would be for G18 motion. Is there a > > rule of thumb for that? > > G17 XY IJ > G18

Re: [Emc-users] EDM forms?

On Thu, 1 Aug 2019 at 04:36, Gene Heskett wrote: output of arcgenm18.py is assumeing G17. not G18. So I need to > translate the ijk into what it would be for G18 motion. Is there a rule > of thumb for that? > G17 XY IJ G18 XZ IK G19 YZ JK So to change a G17 arc to a G18 change Y to Z and J to

Re: [Emc-users] EDM forms?

On Tuesday 30 July 2019 23:52:23 TJoseph Powderly wrote: > you ask for long lasting > that would be tungsten carbide > but > i suggest using easy to manufacture, easy to find, low cost > because it will wear anyway > > so copper, with little lead ( often copper sold will be 'machineable' > which

Re: [Emc-users] EDM forms?

On Wednesday 31 July 2019 09:39:22 andy pugh wrote: > On Wed, 31 Jul 2019 at 15:29, Gene Heskett > wrote: > > Carbide was mentioned, I might even see how long this now dull tool > would > > > work. Running backwards so the spiral is carrying fresh water down > > to the fire on the bottom face?

Re: [Emc-users] EDM forms?

On Wed, 31 Jul 2019 at 15:29, Gene Heskett wrote: Carbide was mentioned, I might even see how long this now dull tool would > work. Running backwards so the spiral is carrying fresh water down to > the fire on the bottom face? Lots of things to try. :) > Do you really mean "Woodruff" here? --

Re: [Emc-users] EDM forms?

On Wednesday 31 July 2019 05:10:08 Andy Pugh wrote: > > On 31 Jul 2019, at 04:14, Gene Heskett wrote: > > > > So it appears I will have to dig the keyways by EDM. > > A rotating disc electrode would seem to be a natural for EDMing a > Woodruff slot. > Sourceing a piece of brass that thickness?

Re: [Emc-users] EDM forms?

> On 31 Jul 2019, at 04:14, Gene Heskett wrote: > > So it appears I will have to dig the keyways by EDM. A rotating disc electrode would seem to be a natural for EDMing a Woodruff slot. ___ Emc-users mailing list

Re: [Emc-users] EDM forms?

On Tuesday 30 July 2019 23:52:23 TJoseph Powderly wrote: > > So it appears I will have to dig the keyways by EDM. > you ask for long lasting > that would be tungsten carbide > but > i suggest using easy to manufacture, easy to find, low cost > because it will wear anyway > > so copper, with

Re: [Emc-users] EDM forms?

On Tuesday 30 July 2019 22:52:06 Jon Elson wrote: > On 07/30/2019 09:14 PM, Gene Heskett wrote: > > Greetings all; > > > > Like Jon said on the sheldon list. woodruff keys cut into a case > > hardened shaft are a bear. Carbide makes a mark, for about 5 > > seconds. > > > > So it appears I will

Re: [Emc-users] EDM forms?

you ask for long lasting that would be tungsten carbide but i suggest using easy to manufacture, easy to find, low cost because it will wear anyway so copper, with little lead ( often copper sold will be 'machineable' which means lead which means higher wear ) for a key way you should be able to

Re: [Emc-users] EDM forms?

On 07/30/2019 09:14 PM, Gene Heskett wrote: Greetings all; Like Jon said on the sheldon list. woodruff keys cut into a case hardened shaft are a bear. Carbide makes a mark, for about 5 seconds. So it appears I will have to dig the keyways by EDM. Because the electrode will go away too, what

[Emc-users] EDM forms?

Greetings all; Like Jon said on the sheldon list. woodruff keys cut into a case hardened shaft are a bear. Carbide makes a mark, for about 5 seconds. So it appears I will have to dig the keyways by EDM. Because the electrode will go away too, what makes the longest lasting electrode material?

Re: [Emc-users] EDM Small Hole Drilling

good point i was an applications engineer and i used that trick sometimes you have to think well tho (it dont always work like you think) i always akin it to 'smoke goes up the chimney' and 'dont blow down the chimney' often the heat rise will aid the upwards flow and the swarf contained in

Re: [Emc-users] EDM Small Hole Drilling

I've got a question for you, TomP. Why aren't sinker edm systems operated in an inverted fashion, with the work facing down and the electrode underneath facing upward? I would think gravity could then help clear debris out of the hole. -- Ralph On Feb 11, 2017 2:35 AM, TJoseph Powderly

[Emc-users] EDM Small Hole Drilling

You don't say how many holes to drill/hr, how many holes per part, orientation of adjacent holes. (parallel, orthogonal) It may be practical to have a setup with multiple heads that EDM drills all the holes at once. On 10 February 2017 at 23:59, Jim Craig wrote: >

Re: [Emc-users] EDM Small Hole Drilling

thats hot! 1mm dia. tomp On 02/12/17 04:52, Ken Strauss wrote: > A local shop uses the larger version of these to deburr holes drilled in > tubing. They claim to be usable in 0.040 holes and there is a Swiss company > that I can't recall the name of that makes really small ones. > >

Re: [Emc-users] EDM Small Hole Drilling

Jim hello again let me stress the word 'scale' most google hits will claim edm has 'no burr' thats a damn-lie (tm) invented by sales-people i can feel it with my finger tip IF it was done fast on a cheap machine so there is a sliding scale of burr height from nanometers to tens of microns the

Re: [Emc-users] EDM Small Hole Drilling

On 2/11/2017 3:52 PM, Ken Strauss wrote: > A local shop uses the larger version of these to deburr holes drilled in > tubing. They claim to be usable in 0.040 holes and there is a Swiss company > that I can't recall the name of that makes really small ones. > >

Re: [Emc-users] EDM Small Hole Drilling

; From: dave [mailto:dengv...@charter.net] > Sent: Saturday, February 11, 2017 3:14 PM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] EDM Small Hole Drilling > > ECM can be good stuff but often slow. LOTS of current at low voltage. > NaCl or NaOH as ele

Re: [Emc-users] EDM Small Hole Drilling

ECM can be good stuff but often slow. LOTS of current at low voltage. NaCl or NaOH as electrolyte. Byproducts may not be soluble and therefore a mess especially if you make ferric hydroxide; a mess to filter. I thought about doing this in salt water. That is use water out of the bay. Not an

Re: [Emc-users] EDM Small Hole Drilling

On 2/10/2017 9:01 PM, TJoseph Powderly wrote: >> The reason I am contemplating the small hole EDM process is three fold. >> First it is difficult to drill these tiny holes in stainless and the >> drill bits frequently break. Secondly the back side of the hole needs to >> be burr free but is

Re: [Emc-users] EDM Small Hole Drilling

> The problem is EDM is very slow. Your holes would take at > the least, several minutes each. But, they'd be pretty clean. > You ought to get in touch with Ben Fleming, he demoed a > pulser EDM system at some of the CNC workshops in Ann Arbor > a few years ago. > >

Re: [Emc-users] EDM Small Hole Drilling

> >> Seriously though, lasers are expensive. I actually considered lasers > >> first and went back to a regular spindle. > > Also, going back to something else mentioned here, ECM might work. It might > > be especially effective if the geometry allows several holes to be made at > > the same

Re: [Emc-users] EDM Small Hole Drilling

On 02/11/17 17:15, Andy Pugh wrote: > >> On 10 Feb 2017, at 22:42, Jim Craig wrote: >> >> Seriously though, lasers are expensive. I actually considered lasers >> first and went back to a regular spindle. > Also, going back to something else mentioned here, ECM might

Re: [Emc-users] EDM Small Hole Drilling

> On 10 Feb 2017, at 22:42, Jim Craig wrote: > > Seriously though, lasers are expensive. I actually considered lasers > first and went back to a regular spindle. Also, going back to something else mentioned here, ECM might work. It might be especially effective

Re: [Emc-users] EDM Small Hole Drilling

Some googling turned up info on first drilling through with an undersize tool then making a grinding pass to finished size. http://link.springer.com/article/10.1007/s12541-012-0123-2 -- Check out the vibrant tech

Re: [Emc-users] EDM Small Hole Drilling

Small  hole  EDM  (electrical  discharge  machining)  drilling,  also  known  as  fast  hole EDM drilling, hole popper, and start hole EDM drilling, was once relegated to a “last resort” method of drilling holes. Now, small hole EDM drilling is used for production work. Drilling speeds have

Re: [Emc-users] EDM Small Hole Drilling

i was surprised how much off the shelf stuff exists its not impossible to reverse engineer the connections but a working experience is handy maybe you know an edm service engineer cum hacker? the mechanical stuff ( motors spindles pumps ) are too cheap to mess with diy the guides wont be a diy

Re: [Emc-users] EDM Small Hole Drilling

On Friday 10 February 2017 21:54:45 Jon Elson wrote: > On 02/10/2017 03:59 PM, Jim Craig wrote: > > So my questions are as follows. What type of power supply would I > > need to use for doing small hole EDM drilling? Can I use a tig > > welder as the power supply and control pulsing with LinuxCNC

Re: [Emc-users] EDM Small Hole Drilling

wow, i gotta look into that epoxy idea, we just pressurized the cavity with water and that was a complex jig already! thx tomp On 02/11/17 05:58, Comcast wrote: > The laser drilling was the first thing I thought of too. Pratt & Whitney > uses this process to drill similar size holes in the

Re: [Emc-users] EDM Small Hole Drilling

re: other technogies... if you can drill it, it'll be faster a good applications engineer from a good company can read your specs and give you tools and tooling that will do the job it may be expensive but its pretty guaranteed and even proven on your test parts tomp On 02/11/17 05:42, Jim Craig

Re: [Emc-users] EDM Small Hole Drilling

Jim hello I have worked with a lot of taiwanese hole drills ( hopops for short ) On 02/11/17 04:59, Jim Craig wrote: > I am working on a project at work where we are designing a new CNC > machine for a particular application. Up to this point I have been > planning on using a standard machine

Re: [Emc-users] EDM Small Hole Drilling

On 02/10/2017 03:59 PM, Jim Craig wrote: > So my questions are as follows. What type of power supply would I need > to use for doing small hole EDM drilling? Can I use a tig welder as the > power supply and control pulsing with LinuxCNC driving an external IGBT? TIG is constant current, and

Re: [Emc-users] EDM Small Hole Drilling

The laser drilling was the first thing I thought of too. Pratt & Whitney uses this process to drill similar size holes in the turbine blades. The keep the slag out of the holes they fill the interior of the blade with epoxy: Upon burn through the epoxy virtually explodes, blowing and slag or

Re: [Emc-users] EDM Small Hole Drilling

On 2/10/2017 4:16 PM, andy pugh wrote: > On 10 February 2017 at 21:59, Jim Craig wrote: >> The more I think about the actual process and needs of the machine I am >> thinking that a small hole EDM drilling head would be better for this >> application. > > Maybe

Re: [Emc-users] EDM Small Hole Drilling

On 10 February 2017 at 21:59, Jim Craig wrote: > The more I think about the actual process and needs of the machine I am > thinking that a small hole EDM drilling head would be better for this > application. Maybe consider lasers (and sharks?) too:

[Emc-users] EDM Small Hole Drilling

I am working on a project at work where we are designing a new CNC machine for a particular application. Up to this point I have been planning on using a standard machine spindle. The more I think about the actual process and needs of the machine I am thinking that a small hole EDM drilling

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

der your platform today. http://sdm.link/xeonphi > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users edm-cnc-paper_nc.pdf Description: Adobe PDF document -

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

Nicklas, Sarah and all interested in EDM i found this resource unlike most tech sites , the papers are free :-) http://www.sciencedirect.com/science/journal/22128271/42/supp/C regards, tomp tjtr33 btw: lots more than edm here!

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

On Wed, 11 Jan 2017 08:50:28 +0700 TJoseph Powderly wrote: > ... > I understand the need for scaling the meters, sort of zoom to look > closer at the process Yes and zoom on step length to fine tune. To scale values in widget is probably a very good idea since it is not real

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

emed to work fine after that. > Chris M > > From: Chris Morley <chrisinnana...@hotmail.com> > Sent: January 10, 2017 9:51 PM > To: EMC > Subject: Re: [Emc-users] EDM machining, user interface, increments > > > That sounds like

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

caled) I tested on my machine it seemed to work fine after that. Chris M From: Chris Morley <chrisinnana...@hotmail.com> Sent: January 10, 2017 9:51 PM To: EMC Subject: Re: [Emc-users] EDM machining, user interface, increments That sounds like a bug...wh

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

Machine Controller (EMC)" <emc-users@lists.sourceforge.net> > Subject: [Emc-users] EDM machining, user interface, increments > Date: Tue, Jan 10, 2017 1:35 PM > > > > In sort of the delta scale is a little bit slippery. It slip while using the > mouse wheel and only

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

That sounds like a bug...wheel or mouse should move it the same. - Reply message - From: "Nicklas Karlsson" <nicklas.karlsso...@gmail.com> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Subject: [Emc-users] EDM machining, user

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

- > From: "Nicklas Karlsson" <nicklas.karlsso...@gmail.com> > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> > Subject: [Emc-users] EDM machining, user interface, increments > Date: Tue, Jan 10, 2017 12:34 PM > > > > I discove

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

- > From: "Nicklas Karlsson" <nicklas.karlsso...@gmail.com> > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> > Subject: [Emc-users] EDM machining, user interface, increments > Date: Tue, Jan 10, 2017 12:34 PM > > > >

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

chine Controller (EMC)" <emc-users@lists.sourceforge.net> Subject: [Emc-users] EDM machining, user interface, increments Date: Tue, Jan 10, 2017 12:34 PM I discovered the limitations of the hal inputs, what is needed is: min max scale increment value increment value change from

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

I discovered the limitations of the hal inputs, what is needed is: min max scale increment value increment value change from GUI A choice to between actual or scaled value None of the do it all.The hal dial may change the scale but what is really needed is possibility to change

Re: [Emc-users] EDM machining --> EDM generator signals

I used in CAN network and have seen something about it is available on Ethernet. To send messages over SPI or UART should be no problem. Nice thing is PDO for real time and SDO for configuration, then i use interpolated position mode there is a need to set the gain. On Fri, 6 Jan 2017 22:19:54

Re: [Emc-users] EDM machining --> EDM generator signals

Nicklas i found http://www.siegels.us/HomeAutomation/CANOpen_Node_SGS/Tutorial.pdf to learn about canopen pdo very interesting idea you have tomp tjtr33 -- Check out the vibrant tech community on one of the world's most

Re: [Emc-users] EDM machining --> EDM generator signals --> Ready to go

Hello Nicklas On 01/06/17 21:32, Nicklas Karlsson wrote: > I am better do some real machining and research first. Good news is I am > basically ready to go. Yesterday graphics card freeze the screen and Eclipse > refused to work but now everything is good. > > EDM machine is located in cold

Re: [Emc-users] EDM machining --> EDM generator signals --> Ready to go

I am better do some real machining and research first. Good news is I am basically ready to go. Yesterday graphics card freeze the screen and Eclipse refused to work but now everything is good. EDM machine is located in cold garage and temperature is to low this weekend so I postpone test run

Re: [Emc-users] EDM machining --> EDM generator signals

On 01/06/17 15:55, Nicklas Karlsson wrote: >> Nicklashello >> the time from voltage turn-on until the voltage dropis the ionization time >> this can be used as an indication of the gap 'clean'. >> >> as the cut progresses and more debris is generated, >> this time measure will change and

Re: [Emc-users] EDM machining --> EDM generator signals

> Nicklashello > the time from voltage turn-on until the voltage dropis the ionization time > this can be used as an indication of the gap 'clean'. > > as the cut progresses and more debris is generated, > this time measure will change and decrease > because the debris will reducethedielectric

Re: [Emc-users] EDM machining --> EDM generator signals

Nicklashello the time from voltage turn-on until the voltage dropis the ionization time this can be used as an indication of the gap 'clean'. the idea is that IF the gap is very clean , and constantly clean, each ignition delay time measured will be uniform and will be a 'standard' value for

Re: [Emc-users] EDM machining --> EDM generator signals

I am thinking about the ionization and sparc counters. These counters might be useful to calculate how well the process work and maybe adjust parameters? On Mon, 2 Jan 2017 23:53:55 +0700 TJoseph Powderly wrote: > Hello > video of early iteration of edm panel in use >

Re: [Emc-users] EDM machining --> EDM generator signals --> Protocol

Not yet I am still thinking. CANopen is used on CAN but I have also seen implementation over Ethernet and guess same packet could be routed to serial or SPI. CANopen protocol is attractive because it have simple PDO for real time data and SDO for dictionary with parameters. What I want is a

Re: [Emc-users] EDM machining --> EDM generator signals

On Tue, 3 Jan 2017 09:40:39 +0700 TJoseph Powderly wrote: > Nicklas, hello > > > On 01/03/17 04:17, Nicklas Karlsson wrote: > > I made local change to the hostmot2 stepper drivers to both send and > > receive absolute position encoder style. Behaviour could be changed with

Re: [Emc-users] EDM machining --> EDM generator signals

> Nicklas hello > everybody is a novice in EDM, its just full of surprises ;-) > > 'interpolated position mode' ...doesthis mean position loop in hardware? No but it could as well be. It is position loop locally inside servo driver. It is ran twice each switching period, once for each switching

Re: [Emc-users] EDM machining --> EDM generator signals

Nicklas, hello On 01/03/17 04:17, Nicklas Karlsson wrote: > I made local change to the hostmot2 stepper drivers to both send and receive > absolute position encoder style. Behaviour could be changed with > configuration parameter. do i think correctly ? the stepper gets position commands, not

Re: [Emc-users] EDM machining --> EDM generator signals

Nicklas hello everybody is a novice in EDM, its just full of surprises ;-) 'interpolated position mode' ...doesthis mean position loop in hardware? regards Tomp tjtr33 On 01/03/17 01:34, Nicklas Karlsson wrote: > Me is novice on EDM but it seems you know what you are doing. I got digital >

Re: [Emc-users] EDM machining --> EDM generator signals

I made local change to the hostmot2 stepper drivers to both send and receive absolute position encoder style. Behaviour could be changed with configuration parameter. The change is simple but I am still thinking about protocol because with interpolated position mode there is a need to set

Re: [Emc-users] EDM machining --> EDM generator signals

Nicklas , any changes needed , i'd like to know should we put a repro together , might make life easier Sarah On 2 January 2017 at 18:34, Nicklas Karlsson wrote: > Me is novice on EDM but it seems you know what you are doing. I got > digital outputs connected on

Re: [Emc-users] EDM machining --> EDM generator signals

Me is novice on EDM but it seems you know what you are doing. I got digital outputs connected on machine this weekend and will probably be able to test this weekend. I have made my own servo drivers with interpolated position mode, response is fast even though I have not yet perfected control

Re: [Emc-users] EDM machining --> EDM generator signals

Thanks Thomas , for the video , very interesting and informative too , i learned some more lol look forward to getting all this together Sarah On 2 January 2017 at 16:53, TJoseph Powderly wrote: > Hello > video of early iteration of edm panel in use >

Re: [Emc-users] EDM machining --> EDM generator signals

Hello video of early iteration of edm panel in use https://videobin.org/+fe8/jab.html i think an example of reading the db file needs to be done soon but a working model is better than just thinkin' thanks tomp tjtr33

Re: [Emc-users] EDM machining --> EDM generator signals

Tabs are probably a very good idea, it is easy to switch in between. Even though my knowledge about EDM machining is very limited to to select parameter from a file or database sounds like a really good idea, I have seen tables with parameters in manual. If there are any problems with the

Re: [Emc-users] EDM machining --> EDM generator signals

good progress , i cant come up with any omissions , at least at this stage On 29 December 2016 at 19:01, TJoseph Powderly wrote: > planning 3 tabs > 'tech' you select edm parameters from a flatfile database OR rool your own > on/off/current/polarity/ignition voltage > 'cut'

Re: [Emc-users] EDM machining --> EDM generator signals

On Tue, 27 Dec 2016 09:18:12 +0700 TJoseph Powderly wrote: > Nicklas > are you using theses abbreviation meanings? > .u = umschaltung or Voltage > .i = current > .t = time Yes, .u=voltage, .i=current, .t=time > > re: edm.u.Sparc , is this a flag meaning the spark generator

Re: [Emc-users] EDM machining --> EDM generator signals

Nicklas are you using theses abbreviation meanings? .u = umschaltung or Voltage .i = current .t = time re: edm.u.Sparc , is this a flag meaning the spark generator is active, or what? re: edm.t.On & Off , are these integer microseconds or floats? re: edm.u.Ionization, is this a flag meaning

Re: [Emc-users] EDM machining --> EDM generator signals

In the m-codes you sent. M110 set onVal and offVal while I use edm.t.off and edm.t.on M112 set ipkval while I did not have M198 set AtMinTix and AtMaxTix while I do not have M199 set AdvLimVal and RetLimVal while I do not have Output signals: edm.t.Off edm.t.On edm.u.Ionization

Re: [Emc-users] EDM machining --> EDM generator signals

The user interface is a little bit blurred. As is now I try separate out signals for EDM generator in separate *.hal file similar as for spindle. Output signals: edm.t.Off edm.t.On edm.u.Ionization edm.u.Sparc Input signals: edm.u.Open edm.u.Seat edm.i edm.ionizationCnt

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

interesting AGie stuff please look at http://www.gfms.com/content/dam/gfac/proddb/edm/die-sinking/en/agiecharmilles-form-200-ms_en.pdf for a bit more screenshots remember, this is for a proprietary machine, and will be of limited use what is good though, is they actualy asked users to evaluate the

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

the edm gcodes are _usually_ fanuc like while the machines position the mcodes are _not_ similar , these are machine design specific, there are similar functions but the codes will be different characters and different devices especially the codes related to the edm power settings ( current

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