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 ionization occured? (
threads are not fast enough fpr that, ionization from initialization is
submicrosecond)
re: emd.u.Seat, is this the discharge voltage, is this also the servo
target?
re: edm.u.Open, is this the ignition voltage ( usually less that 3
amperes, and for example AGie 60L is 100 150 200 270 selectable )?
or the actual cutting supply no-load voltage (neccesarily > discharge
voltage and often 60-120volts, 115 in my system)
re: edm.i , i think this is current,
when I talked about ipkval it refered to the maximum (peak) current
available is a dead short
in a normal discharge, the reactance of the spark gap acts sort of
like a resistor, the Actual current will be less
the joules delivered is (ontime-ionizationTime ) * (dischargeVoltage)
* (actualCurrent )
re: edm.ionizationCount .sparcCnt these are very fast changing data,
too fast for threads,
but outside hardware (i used PICs) can report running averages
these data can be used to evaluate process quality and can lead to
adjusting the offtime , flush, cut duration of jumping strategy
re: old mcodes, they are just models, they can be changed easily, likely
individual codes for individual parameters is better
the M110 can be moved and can be broken into individual set_on & set_off
the M112 sets the supplied peak current, and since my interface was
binary, had special code for that
the M199 was a position limit number, a position that constrained the
Hal motion
( i did not use linuxcnc gcodes tho i operated inside linuxcnc)
the tool was not allowed to exceed this position.
It is related to M198 which is a timer.
Edm process is not complete as soon as the tool arrives to the
programmed position,
as the surface is not completely cut yet.
So, i wait for the tool to maintain the final position until the gap
voltage rises
THEN wait an additional security time (M198 monitors this)
THEN the system is ready to proceed to next step.
This is similar to linuxcnc exactStopMode extreme!
in general a wedm user interface is different than sink edm
wedm is a path, like a mill
the wedm cuts while along a path
wedm uses cutter comp a lot, to change the path from roughing ( far
away from the path ) to finishing ( close to the path )
sink edm is like a cnc punch press
the sink edm gets into position then cuts with very small motion in a
single location
sink edm moves around each location , first achieving th enet shape
during rough stage then about the location ( orbiting ) while refining
the surface
so the user interface may be very different
i will look into the user interface also
you still have the coffeecup edm for testing?
regards
tomp tjtr33
On 12/26/16 23:40, Nicklas Karlsson wrote:
> 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
> edm.u.Sparc
>
> Input signals:
> edm.u.Open
> edm.u.Seat
> edm.i
> edm.ionizationCnt
> edm.sparcCnt
>
> I think it would be good if it is possible to use more or less standard or at
> least common *-code for EDM generator. Then I think standard signal names
> must be defined for the *-code or how do they find the correct
> signal-/pin-name?
>
>
> Suitable parameters for control of spindle have been figured out a long time
> ago
> http://linuxcnc.org/docs/html/man/man9/motion.9.html
>
>
> On Mon, 26 Dec 2016 21:50:36 +0700
> TJoseph Powderly <tjt...@gmail.com> wrote:
>
>> 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 user
>> interface before forcing it onto all the users
>> GF is George FIscher, the auto body company, ( and a lot more)
>> they bought up AGie Charmilles Elox and other edm mfctrs over the years
>> (the borg of edm, so they have acquired a LOT of edm knowledge )
>>
>> i was head of AGie sink edm for a while back in the day, sort of by default,
>> no one else knew what the hell those machine were, and they only wanted
>> to play on wedm anyway
>> (eeeoooow its oily and dirty eeeooooow)
>>
>> regards
>> TomP tjtr33
>> On 12/26/16 19:46, Nicklas Karlsson wrote:
>>>> ...
>>>> please tell us more of what you try to control with all those flushing
>>>> controls!
>>>> it seems there is magnitude of flush, and type of flush(pressure /
>>>> vacuum), and tank fill and dump
>>> The flushing controls are coils I found inside the machine and I have not
>>> yet figured out how to use them. I added a button so I could turn them
>>> off/on, there are also a few LEDs with no use. I think lubrification should
>>> be started then machine is enabled?
>>>
>>> It is possible to adjust tOff/tOn time and a meter for gap voltage, there
>>> are few buttons left over from example. I spent a just a few hours on the
>>> user interface and are right now thinking about how it should look and more
>>> or less standard *-codes for parameters for generator, I also have found
>>> m-codes you sent earlier.
>>>
>>>
>>> I have found Charmilles have a new standard user interface
>>> http://www.mfgnewsweb.com/archives/4/37497/Controls-dec12/New-Standard-User-Interface-for-Sinker-EDM-Machines.aspx
>>>
>>>
>>>> the area 'Settings' could be anything from on & off time to
>>>> cuttime/jumpdistance/frequency.
>>>> the 'Command' area is understandable
>>>> regards, & merry Christmas
>>>> tomp tjtr33
>>>> On 12/25/16 21:54, 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 on/off/current/polarity
>>>>> I could remember I god some g-code suitable for EDM and are looking
>>>>> for them right now. I have entered g-code for Linuxcnc and Sodick wire
>>>>> EDM in a database, there a problem with a few codes. The database
>>>>> could be rather useful if filled in for more machines and put on the
>>>>> web. I have never machined run a machine and think it could be a good
>>>>> start to read thru which codes are available.
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