Re: [Emc-users] Unable to get 5i24 + 7i48 + 7i44 to work

[Sarah Armstrong]

Field power is required for the serial communications to work .
So that should solve your problem


On Mon, 23 Jan 2017 at 08:51, Viesturs Lācis 
wrote:

> 2017-01-22 16:54 GMT+02:00 Peter C. Wallace :
>
> >
>
> >
>
> > Do you have field voltage supplied to the 7I70 and 7I71?
>
> >
>
>
>
> Not yet, I have it all laid out on a table, just testing to get the
>
> initial config right to get the boards working. So field power is
>
> needed? Ok, thanks, I will try that!
>
>
>
>
>
> Viesturs
>
>
>
>
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Re: [Emc-users] Unable to get 5i24 + 7i48 + 7i44 to work

[Sarah Armstrong]

you should have power 5v between pins 4&5 and 7&8 of the rs485
pins 4&5 are gnd 7&8 are power , check your gnd in particular

if your drawing too much current you may not have 5v at this point
i tend to use external power directly to avoid any cable problems etc



On 22 January 2017 at 14:12, Viesturs Lācis 
wrote:

> 2017-01-15 18:10 GMT+02:00 Peter C. Wallace :
> >
> > Proper firmware for 7I48 and 7I44 is 5i24_16_svss6_8.bit
> >
> > NOTE: 7I48 on P4 (IO 0..23) , 7I44 on P2 (IO 48..71)
> >
>
> I got so far that manipulating pwmgen value pin does change voltage on
> 7i48 outputs, so that seems to be correct and working.
>
> I am struggling with 7i44 and 7i71/7i70 boards - how do I find out,
> what is wrong? The thing is that I do not see anything about them in
> 'show HAL config'.
>
> In 7i44's manual I found the note about using correct cable between
> 7i44 and its daughterboard. As far as I can see through the connector,
> the wire colours are matching, so I guess that those are
> straight-through wires.
>
> Currently I do not see a single LED shining on any of these boards
> (7i44 and its daughterboards). Not even next to rj-45 connectors.
> Power to 7i44 is supplied to P1 connector and 'cable power' jumper is
> in 'off' position. 5v and 3,3v voltages show up on 7i70/7i71 board on
> capacitor legs, which makes me thing that actual power is delivered to
> these boards.
>
> Viesturs
>
> 
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Re: [Emc-users] EDM machining --> EDM generator signals

[Sarah Armstrong]

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 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 loop. I read thru
> books right now to get control loop as good as possible.
>
> If anyone else want interpolated position mode I could help modify
> linuxcnc protocol, modification is simple.
>
>
> On Mon, 2 Jan 2017 23:53:55 +0700
> TJoseph Powderly  wrote:
>
> > 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
> >
> >
> >
> > 
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Re: [Emc-users] EDM machining --> EDM generator signals

[Sarah Armstrong]

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
> 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
>
>
>
> 
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Re: [Emc-users] tiny edm integrator circuit

[Sarah Armstrong]

Happy new year to you Thomas, Nicklas
thanks for the links , i will give them a good read

Sarah

On 1 January 2017 at 08:41, TJoseph Powderly  wrote:

> and oel-held re-issued thier edm booklet
> the best visuals about the spark process
> from Dr. Schumaker ???sp??? of AGie circa 1975
> http://www.oelheld.com/fileadmin/content/pages/
> Prospekte_pdf/Prospekte_en/oh_Important_facts_about_spark_erosion_en.pdf
>
> Bernardtomp tjtr33
>
> its really important in EDM
> that you builda mental picture of whats happening
> and test real results against it daily
> else you cant tell the cruft fromthe truth
>   or near truth in these publications
>
> much less whats spelled correctly ;-)
> tomp tjtr33
>
>
> 
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Re: [Emc-users] EDM machining --> EDM generator signals

[Sarah Armstrong]

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' you control live cut   generator on/off, offtime, target voltage,
> gain for edm servo, peck cutting parms, fill(flood) & flushing parms
>and you monitor AvgVoltage AvgCurrent Stability Arcing ... ooops it
> 2am, cutting it short
> 'strategy'  orbiting
>
> tomp tjtr33
>
>
> 
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Re: [Emc-users] EDM machining, user interface, g-code, fork on repository

[Sarah Armstrong]

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 the same if theirs a common
trend , i presume there will be .


Niklas
regarding your speed widget , it could be that the speed widget is not
loaded at the time your looking to find the pin
so changing the order of loading might help ,

Sarah


On 23 December 2016 at 11:07, Nicklas Karlsson  wrote:

> 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:
> > > 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 flush? g-codes for control of EDM power source?
> > >
> > i think Mcodes are more suited to machine functions,
> > gcodes are for motion
> > mcodes can be scripts and easily managed
> > i uploaded mcodes before with python commands to change edm generator
> > on/off/current/polarity
> > a python script can be very powerful, it can issue hal commands and
> > alter hardware
> > > As soon as user interface start to be more useful it is also time to
> > create som kind of fork so I could upload it to the repository. I guess
> the
> > the same will also happen with the g-codes then I start to look at them.
> > great! i am anxious to look at it
> > >
> > > Regards Nicklas Karlsson
> > >
> > >
> > regards
> > Tomp Tjtr33
> >
> > 
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Re: [Emc-users] EDM machining, user interface

[Sarah Armstrong]

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 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 interested I could share hardware drawings or others. I
>also changed a few rows in drivers so that positions are sent instead
>of speed and put control loop local.
>
>
>
>Regards Nicklas Karlsson
>
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Re: [Emc-users] OT: Mazak turret clamp problem

[Sarah Armstrong]

Check also any bearings and thrust bearings for wear, sometimes the turret will 
not lift parallel, hence they stick 

⁣

Sent from BlueMail ​

On 24 Nov 2016, 19:35, at 19:35, Leonardo Marsaglia 
 wrote:
>Hello to all.
>
>I have a little problem (I hope it's a little one) with the claping on
>the
>turret of the Mazak QT20.
>
>The clamping works with a hydropneumatic system and by looking at it,
>it
>has some amplificators of force on the back of the charriot.
>
>The problem is, the turret won't unclamp sometimes, and if it does it
>takes
>a little while. Then when it clamps again sometimes I can see it's not
>a
>soft and natural clamping. We checked and replaced the o-rings on the
>turrent side, and I checked the electrovalves on the back. The valves
>seemed to be a little sticky on the return stroke but I cleaned and
>lubricate them and by hand the worked ok. I don't know if that could
>cause
>the erratic problem.
>
>Another thing that happens when the turret doesn't want to unclamp, is
>that
>the air relief on the electrovalve keeps blowing until I turn off the
>machine or until I press the clamp button again. (When this happens the
>turret doesn't even want to unclamp).
>
>I can't find any docs about the circuit, and I don't have schematics
>about
>the hydropneumatic circuit on the manuals I have. So I came to the only
>place I know I will have the best answers :)
>
>Thank as always!
>
>
>-- 
>*Leonardo Marsaglia*.
>--
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Re: [Emc-users] Machinekit?

[Sarah Armstrong]

Danny, 
Go to the Google group machinekit is where most of the info is 

Sarah 

⁣

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​

On 19 Oct 2016, 18:44, at 18:44, dan...@austin.rr.com wrote:
>
>http://www.machinekit.io/
>
>Anybody familiar with this?  Got a friend who wants to put it on a
>BeagleBone Black.  LinuxCNC run onboard a Cortex A8 directly and the
>HDMI monitor, keyboard, mouse etc plug straight into that, not just
>acting as a motion controller from a remote PC.
>
>Notable benefit would seem to be that the IO is very low-latency
>without a motion controller card, and the architecture is 100%
>consistent, as opposed the latency lottery that is picking a PC and its
>MB chipset and seeing how it works.  
>
>BBB does have 2x 46 pin IO headers.  I'm not sure if all pins can be
>assigned arbitrary HW functions, but it sounds like plenty anyhow.
>
>He asked me about it and all I can do so far is say "hmm".  The
>Machinekit website is pretty sparse.
>
>Danny
>
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Re: [Emc-users] New stepper-servo

[Sarah Armstrong]

I,m actually working on a unit to do exactly that Gene. 

Along with tool breakage sense 
Which is tending to be the pain, so I might make 2 units 

Sarah 

⁣

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​

On 19 Oct 2016, 11:13, at 11:13, Gene Heskett  wrote:
>On Wednesday 19 October 2016 01:01:18 Danny Miller wrote:
>
>> A friend showed me this today, not powered up yet:
>>
>>
>https://www.kickstarter.com/projects/tropicallabs/mechaduino-powerful-
>>open-source-industrial-servo-m
>>
>> At first I was confused, it says it's a stepper, but with an encoder,
>> and lowers or disables drive current when not needed.  Or you can
>> freewheel it and it'll maintain the coordinate system.  It cannot
>> stall without the system knowing, and a stall won't corrupt the
>> coordinate system.
>>
>> But there's no mechanical connection to the motor, it's this new
>> AS5047D high speed, high resolution magnetic rotary position sensor:
>>
>>
>http://ams.com/eng/Products/Magnetic-Position-Sensors/Angle-Position-O
>>n-Axis/AS5047D
>>
>> You glue a magnet to the rear of the motor shaft, and keep the sensor
>> like 1/4" away.  Note it not only counts delta, it knows absolute
>> rotor position.
>>
>> Gives 2000 counts/rev.  That's enough that it could effectively show
>> rotor phase through a single fullstep, which would allow for more
>> stable electrical control of stepping.  There's an initial
>calibration
>> phase that drives a phase so it knows where the TDC of Coil A is in
>> absolute position.
>>
>> They set it up so it powers down and freewheels, except it will hold
>> its position by powering coils when needed.  It can also reduce
>> current to product only the torque needed to follow the step
>commands,
>> instead of always operating at full current.
>>
>> Well, my mind is blown!
>>
>> Danny
>>
>That does indeed sound very handy for stepper users. But the sensor 
>magnet I do not envision as being on the motor, but on the ends of the 
>screws driving the machine. That will give 16,383 discrete positions of
>
>the screw per revolution of the screw, irrespective of any stepdowns 
>from belt drives etc between the motor and the screw. I did not see a 
>price for the completed board and magnet, just for the AMS device. 
>Ahh, 
>did find it on the pre-order button, $47 a copy for version 0.1.
>
>Did anyone else? If not too outrageous, I might be interested in a pair
>
>of them to put on this Sheldon conversion as a test bed. But I'll do
>the 
>conventional way first & see where it falls over.
>
>What I would really like to see would be a light beam that a tool could
>
>be advanced into in order to both adjust the tool tip height, and set 
>the tools zero radius offset. Something whose shadow could be detected 
>by a 4 cell photodetector in the tailstock socket.  Or even a low res 
>cmos imager would suffice for the detector.  Almost anything to get us 
>into the +- .005" range for a first pass calibration cut.
>
>Comments? Gotchas?
>
>Cheers, Gene Heskett
>-- 
>"There are four boxes to be used in defense of liberty:
> soap, ballot, jury, and ammo. Please use in that order."
>-Ed Howdershelt (Author)
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Re: [Emc-users] TLM is being the M again...

[Sarah Armstrong]

Gene, 
Take a look at arceurotrade.co.uk
For bellows and covers 

Sarah 

Sent from BlueMail



On 12 Oct 2016, 16:12, at 16:12, Gene Heskett  wrote:
>Greetings all;
>
>Whittling out the hose nipples for the bellows on the Z screw
>yesterday, 
>I got the one for the sides of the Z nut done, then note that the 
>crossfeed had move inward far enough to crush and destroy what little 
>swarf shielding I had over the x screw, so its sounding like a kettle
>of 
>Orville R's popcorn now. I'll see if I can clean it up one more time, 
>but I've made sliding brass with felt seals shielding arrangements
>until 
>I'm tired of destroying them.  And used up all my flat brass in the 
>process.
>
>I like the idea of wrapping it in a bellows, but I've now looked thru
>55 
>pages of ebay hits without finding a suitable part. So I'll try to
>clean 
>it up, and see if I can locate an innertube I can cut a piece of and 
>just cover the whole rear of the carriage with, letting it buckle as it
>
>moves.
>
>I am about done with this machine, as I noted as I was dialing in one
>of 
>these nipples yesterday, that the spindle has random jumps sideways of
>3 
>thou or so, and can hear the thump when it moves. I suppose the
>bearings 
>are going because I cannot shake it back and forth, nor can I feel any 
>drag when turning it by hand with the backgear in neutral.
>
>But I have to get the Sheldon working first. The sheet of innertube 
>rubber will only work if I move the carriages cable chain fixed anchor 
>to the right so the rubber can slide thru the loop.  That s/b easily 
>enough done as then the carriage end anchor of the cable chain will 
>clear the rubber and just slide under it.
>
>This thing is like hitting yourself in the head with a hammer, it will 
>feel SO good when you stop.
>
>And, I'll have a better computer to drive the Sheldon with.  What I'm 
>going to start out using is a single core P4 running at boil your
>coffee 
>speeds. 5i25 to the rescue...
>
>Thanks everybody.
>
>Cheers, Gene Heskett
>-- 
>"There are four boxes to be used in defense of liberty:
> soap, ballot, jury, and ammo. Please use in that order."
>-Ed Howdershelt (Author)
>Genes Web page 
>
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Re: [Emc-users] Happy 82nd to me, and the latest version of my G76 tweaker for you

[Sarah Armstrong]

Happy Birthday Gene , all the way from the UK !

Sarah


On 4 October 2016 at 15:25, W. Martinjak  wrote:

>
>   Congratulations!  englisch-deutsch/uebersetzung/Congratulations%21.html>
>
>
>
> On 2016-10-04 14:48, Gene Heskett wrote:
> > Greetings all;
> >
> > I re-thought how to do a G76, both in terms of maybe hitting the correct
> > thread od, and in how to minimize the backaway for doing internal
> > threads to the absolute minimum. 2 attachments, one the code that made
> > the snapshot, and the snapshot showing how it works, even for a gross
> > adjustment.  The whole idea was to maintain the effective imaginary
> > compound angle, hopefully resulting it a cleaner thread, as a second or
> > third run was done to get the exact size and fit. I hope you find it
> > usable.
> >
> > Cheers, Gene Heskett
> >
> >
> > 
> --
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> >
> >
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> nur ihre Gegner sterben nach und nach"
>
> Max Planck
>
>
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

[Sarah Armstrong]

i'm looking at a renishaw MP10 IR probe
iv'e posted some snipps of what i am , ( or better think i am ) getting as
an output

https://www.dropbox.com/sh/kwjxef6k4ptbhhb/AABdCLSjzypH574XoXJv_it3a?dl=0

it looks to me all it's doing is giving a constant mark space ratio , and
stopping on a probe hit  , surely it cant be that simple , or could it
i must admit at this point , i have not dug anydeeper as yet , or really
looked to see if i can find any data , but it's very obvious everything
stops on a hit

i was expecting some data or id and say battery condition , but just early
days
found i had a better signal using a 1838 ir that a qse159 but i may need
some better signal conditioning at the moment




On 28 September 2016 at 02:01, Gene Heskett  wrote:

> On Tuesday 27 September 2016 13:19:49 Jon Elson wrote:
>
> > On 09/27/2016 10:36 AM, Gene Heskett wrote:
> > > On Tuesday 27 September 2016 09:29:47 Ken Strauss wrote:
> > >> The discussion has been regarding the optically coupled probe. Has
> > >> anyone had success with the inductively coupled ones? Is it
> > >> feasible to make your own IMM module?
> > >
> > > I'd have to say you could, but these machines are generators of a
> > > large amount of magnetic noise. So I'd say not magnetically coupled,
> > > but radio coupled just to get above the frequency of the machines
> > > own noises.
> >
> > Yes, it seems Blum and Renishaw have moved to RF
> > communication, and seem to be in the 800 MHz to GHz bands!
> > I guess the problem is no matter where you put the IR
> > transceiver, somebody would end up putting an obstruction in
> > the way, and then you break the probe tip. I did rig the
> > loss of signal watchdog to stop the machine, and it seems
> > like a really good idea.
> >
> > Jon
> >
> We are in what I've been known to call violent agreement on that point
> Jon. I recall now, about 2 years back, Dee  buzzed me on the intercom
> thats part of our basket of wireless phones here, in a total panic,
> wanted fresh batteries in the remote as she was missing one of her fav
> game shows.  On my arrival with a pocketfull of batteries, the first
> thing I noticed was she had set something in front of the tv's IR
> window.  I reached over and handed it back to her & told her to try it
> again.  Of course it worked, much to her amazement, it had never been
> grokked that if she couldn't see that window, she didn't have a remote.
> OTOH, she had cataracts removed from both eyes since, and its entirely
> possible she could not see that little black square in the bottom of the
> black face frame.  She sure can now.
> >
> >
> > --
> > ___
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> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
>
> Cheers, Gene Heskett
> --
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> Genes Web page 
>
> 
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

[Sarah Armstrong]

I,m contemplating modifying mine to 2.4ghz and then implementing my own 
protocol, I've got some code already that has infra red to WiFi out, so that 
might do as the catalyst starter code and make a new pcb for the probe and just 
do away with all the infrared.

Sent from BlueMail



On 27 Sep 2016, 18:25, at 18:25, Jon Elson  wrote:
>On 09/27/2016 10:36 AM, Gene Heskett wrote:
>> On Tuesday 27 September 2016 09:29:47 Ken Strauss wrote:
>>
>>> The discussion has been regarding the optically coupled probe. Has
>>> anyone had success with the inductively coupled ones? Is it feasible
>>> to make your own IMM module?
>> I'd have to say you could, but these machines are generators of a
>large
>> amount of magnetic noise. So I'd say not magnetically coupled, but
>radio
>> coupled just to get above the frequency of the machines own noises.
>Yes, it seems Blum and Renishaw have moved to RF 
>communication, and seem to be in the 800 MHz to GHz bands!  
>I guess the problem is no matter where you put the IR 
>transceiver, somebody would end up putting an obstruction in 
>the way, and then you break the probe tip. I did rig the 
>loss of signal watchdog to stop the machine, and it seems 
>like a really good idea.
>
>Jon
>
>
>
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

[Sarah Armstrong]

anyone suggest a better infra red detector than the AX-1838HS

as i see it's band pass is just about centered on 38Khz , and if i am
correct these probes are around 100 - 150Khz
so i'll need something better , iv'e not done much with Infra-red , so if
you parden the pun , i'm in the dark ! lol "

iv'e found a remote in the house that actually activates the probe , and
starts it . so thats something
close . but i'm wondering if just about any sender would do it , as it's
working on a carrier rather than code




On 23 September 2016 at 13:07, Ken Strauss  wrote:

> Looking at the drawing that Sarah was kind enough to supply, the Renishaw
> MP10
> is about 5 inches plus the probe. That wouldn't be too bad to fit on my
> Tormach 770 which is a mid-sized hobby machine.
>
> > -Original Message-
> > From: andy pugh [mailto:bodge...@gmail.com]
> > Sent: Thursday, September 22, 2016 12:49 PM
> > To: Enhanced Machine Controller (EMC)
> > Subject: Re: [Emc-users] snagged touch probe on eBay - anybody know how
> to
> > interface ?
> >
> > On 22 September 2016 at 16:02, Ken Strauss 
> > wrote:
> >
> > > I've never handled a MP3 so...
> > > Most of the MP3 probes listed on eBay include a CAT40 or CAT50 taper.
> > > Is this easily removable? If removable what is the native shank for a
> > > MP3?
> > >
> >
> > Yes. The probe mounts to the shank with 4 screws and then a ball in the
> > probe
> > fits in a hole in the shank. The screws don't pull up tight, you adjust
> them
> > like a
> > 4-jaw chuck to centre the probe tip.
> >
> > I used a BT30 boring-bar adaptor (they are cheaper than metal from eBay)
> and
> > fitted a adaptor to increase the diameter enough for the screws:
> > https://goo.gl/photos/sRDrZbNsnT3z1tuN9
> >
> > The MP3 is not a particularly small probe. If you have a tiny machine
> then
> > you
> > might want something littler.
> >
> >
> > --
> > atp
> > "A motorcycle is a bicycle with a pandemonium attachment and is designed
> for
> > the especial use of mechanical geniuses, daredevils and lunatics."
> > - George Fitch, Atlanta Constitution Newspaper, 1916
> > 
> --
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

[Sarah Armstrong]

Guy's
i'm looking at my renishaw probes , i'm not sure if i am seeing this
correctly
but apart from decoding the stream , i'm seeing  when not touching the
probe emits a signal at about 150khz. When it senses touch it goes up to
160khz.
but at the moment i'm not sure , as the only ir detectors i have works at
38k
i'm using an arduino for quickness , although i would be using a stm32 once
iv'e figured it all out
https://arduino-info.wikispaces.com/IR-RemoteControl


On 20 September 2016 at 00:57, hubert  wrote:

> Hi All
>
> This thread and it's follow on triggered my interest, so I just snagged
> a Renishaw MP3 probe on Ebay and now face the task of interfacing this
> to my New CNC mill which I am due to pickup later this week.  I ordered
> the mill with LinuxCNC using the Mesa cards to interface to the
> computer.  The mill uses Servo's on X,Y,Z.  It is a small mill with a 12
> position tool changer, thus I am hoping to put the probe in one of the
> pockets and use it to sense work-piece position, and also to digitize.
> While this is my Hobby mill I am hoping to get close to 100micro inches
> repeatability.  I would appreciate any pointers to available data for
> building/buying a relatively inexpensive transmitter receiver for this
> purpose.
>
>
> On 9/8/16 11:07 AM, Jon Elson wrote:
> > On 09/08/2016 09:56 AM, Florian Rist wrote:
> >> Hi Jon
> >>
> >>> Yes, I thought about building a receiver out of various
> >>> parts, but there are application specific parts that combine
> >>> all this in one unit.  Most are made with 38 KHz band pass
> >>> filters for VCR remote controls,
> >> Yes, that's why I didn't even look into theses integrated devices.
> >>
> >>> but the QSE159 does not
> >>> have the BPF, looked to be sensitive enough, and was really
> >>> cheap ($1.06)
> >> Indeed, interesting.
> >>
> >> Not sure if it is sensitive enough, 0.25 mW/cm² worst case translates to
> >> 2.5W/m², that's quite a lot. But, now that I started looking, there are
> >> quite a few similar integrated devices available, some with much high
> >> sensitivity down to at least 10µW/cm². However most are lacking the
> >> Schmitt-trigger of the QSE159, nice part, that you found, I'm going to
> >> get one, too.
> >>
> >>
> > I have no idea what the radiated power of the Blum probe is,
> > but it has 12 big surface-mount LEDs arranged around the
> > periphery.  The QSE sensor picks it up very well out past
> > 6", which is all the sensitivity I will need.
> >
> > Jon
> >
> > 
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

[Sarah Armstrong]

for info ,   anyone used or seen  this
http://ostan.cz/IR_protocol_analyzer/

i'm just about to start digging on my renshaw' probes , a bit more



On 8 September 2016 at 17:07, Jon Elson  wrote:

> On 09/08/2016 09:56 AM, Florian Rist wrote:
> > Hi Jon
> >
> >> Yes, I thought about building a receiver out of various
> >> parts, but there are application specific parts that combine
> >> all this in one unit.  Most are made with 38 KHz band pass
> >> filters for VCR remote controls,
> > Yes, that's why I didn't even look into theses integrated devices.
> >
> >> but the QSE159 does not
> >> have the BPF, looked to be sensitive enough, and was really
> >> cheap ($1.06)
> > Indeed, interesting.
> >
> > Not sure if it is sensitive enough, 0.25 mW/cm² worst case translates to
> > 2.5W/m², that's quite a lot. But, now that I started looking, there are
> > quite a few similar integrated devices available, some with much high
> > sensitivity down to at least 10µW/cm². However most are lacking the
> > Schmitt-trigger of the QSE159, nice part, that you found, I'm going to
> > get one, too.
> >
> >
> I have no idea what the radiated power of the Blum probe is,
> but it has 12 big surface-mount LEDs arranged around the
> periphery.  The QSE sensor picks it up very well out past
> 6", which is all the sensitivity I will need.
>
> Jon
>
> 
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Re: [Emc-users] 5i25 failure?

[Sarah Armstrong]

iv'e had ground differences between a machine and a pc
blow a breakout board , it transpired they were across 2 different
supplies, in the building , one 3 phase , one single



On 9 September 2016 at 17:50, Gene Heskett  wrote:

> On Friday 09 September 2016 12:08:27 Chris Albertson wrote:
>
> > It is hard to even guess the cause of this from your description.  You
> > are just going to have to go down the line and test each part
> > independently.
> >
> > I remember reading here in this forum someone posting about
> > "redundant" onto isolators being on both the breakout board and the
> > motor drivers. Maybe this shows that even using two of them in series
> > is not good enough unless you take other precautions in the design.
> >
> > I Think the #1 thing most amateur and many professional engineers
> > forget is that all ground wires and ground traces have some finite
> > amount if resistance and Ohm's Law applies to them
> >
> > A good why to demonstrate this is to place an AC voltmeter into an AC
> > socket in a large building.  Measure between Ground and Neutral and
> > you might see as much as 1.5 volts.  Yes the ground and neutral are
> > tried together at the service entrance but the neutral is currying
> > some current, the ground wire in the normal case is not.
> >
> > I'm guessing the root cause here is mixing up the types of grounds.
> > Logic level returns (called "ground" in many circuits) are not the
> > same as protective ground or AC mains return paths but many times "it
> > is all just "GND" and gets connected haphazardly by those metal shells
> > and screws on cables and inside power supplies and other places.  This
> > is almost impossible to get "right" when you are assembling a system
> > from little boxes made by others.
>
> Amen but no other joyous shouts.  Its a basic truth.
>
> But theres a bit of a hint there too, I have a hardwired ground from the
> lathes frame to the box all the drivers EXCEPT the spindle are in. but I
> am not 100% sure I tied that thru to the logic ground.  If not, my bad
> dog, no biscuit.
>
> Something to triple check.
>
> Everything connected to that machine is on one wall plug, with surge
> absorber extensions furnishing the static ground to everything plugged
> into them, 2 of them in series, one nailed to the wall the computer is
> plugged into, and a second one acting as a master power switch for
> everything but the computer. Perhaps I need to verify that it is indeed
> connected.  Something came in thru the grounds and used a very small
> ground trace on the BoB's pc for a fuse.  And thats all I have for clues
> so far. I unboxed the motors housing so I could shine a strong light
> into the brushed end of the motor, but cannot see any winding damage.
> The other end of the motor is covered permanently by its fan/pulley,
> which has been drilled and tapped in the threaded joint, twice, 180
> degrees separated and 4 ea 10-32 set screws installed as locks to keep
> the flywheel from unscrewing itself on a violent reversal, which Pico's
> PWM-servo amp can do.  All sealed together with green threadlocker. (I
> hope) As for the reversal brutality, I have some hal slowdowns, but they
> get in the way when doing rigid tapping, so its a compromise between
> demagnetizing the motor, and how many turns the spindle overshoots the
> stop point, trying to get deep enough threads yet not bottom the tap and
> either spin it in the chuck, or break it. So I have some more hal
> trickery I can watch with a halmeter that counts the encoders overshoot.
> I grab the calculator and convert that to distance, and subtract tghe
> figure, obtained while tapping air, from the Z depth to program the
> g33.1 with.  That was enlightening, above 200 rpm is so much overshoot
> its not worth cranking up the speed. 300 rpm is 3.75 turns to get to
> zero speed.  The chuck is heavy, but effectively ok, its that pound plus
> of motor flywheel/fan/pulley that counts as the heaviest mass.
>
> But thats not finding the short that did all this damage.  Later.
>
> > On Thu, Sep 8, 2016 at 2:59 PM, Gene Heskett 
> wrote:
> > > Greetings Peter;
> > >
> > > Someone made the remark a while back that it was indeed possible to
> > > look at the output of a function, in this case the first pwmgen of a
> > > 5i25 with the prob-rfx2 firmware in it.
> > >
> > > I've had a blowup, the ultimate cause of which I have not found yet,
> > > but from the damages done to the cnc4pc C1G BoB that I have found so
> > > far, I am inclined to think the spindle motor psu, or possibly
> > > something line powered failed. The C1G damages so far found are 1
> > > blown 74ACT245N, and an almost invisible use of a ground trace on
> > > the pcb as a fuse. All the opto's in my spindle encoder would appear
> > > to have failed.  Those I have a bag of, but that pcb makes the
> > > tinfoil of a pack of smokes look like boiler plate, so I'll have
> > > something I won't call fun 

Re: [Emc-users] "Probe triggered during jog"

[Sarah Armstrong]

your using Cheap Probes John ?
last one i bought cost me $3,500
after some idiot did exactly that .

i added some extra logic and a external keyswitch , to stop it happening



On 7 September 2016 at 13:52, John Kasunich  wrote:

>
>
> On Wed, Sep 7, 2016, at 02:43 AM, Danny Miller wrote:
> > I have a wireless toolsetting probe here.  It's nice, but it's naturally
> > sensitive.  Even when you're not using it, very easy to trip, and
> > LinuxCNC generates a "Probe triggering during jog" error.  Just bump the
> > table.  The probe doesn't even have a physical hard switch, just the
> plate.
> >
> > Hmm.  I don't know why it  was coded to do this, but it's a problem.
> > Basically it should be ignoring Probe-in if it's not probing.
>
> You wouldn't think that if you ever ran the business end of a $500
> probe into the side of a vise while jogging
>
> The normal behavior is to protect sensitive and expensive equipment.
> If you don't like that, you can modify it using HAL logic quite easily.
>
> --
>   John Kasunich
>   jmkasun...@fastmail.fm
>
> 
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Re: [Emc-users] Info needed.

[Sarah Armstrong]

yes it,s more than fast enough Gene , they work fine


On 23 August 2016 at 10:37, Gene Heskett  wrote:

> Greetings all;
>
> Does this device, which I see 5 for a dollar on ebay, have a builtin bias
> magnet? IOW can it sense gear teeth as is?  And is it fast enough to
> handle that bigger gear right behind the spindle bearing in my Sheldon
> at 3000 revs? I haven't counted the teeth but its a bunch, 100 or so.
>
> A3144 3144E OH3144E Hall Effect Sensor SWITCHES TO-92UA 3pin SIP
>
> Thanks.
>
> Cheers, Gene Heskett
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>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> Genes Web page 
>
> 
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Re: [Emc-users] More news & ? from WV.

[Sarah Armstrong]

i tend to use aluminium forms when i need to make hundereds and that when
some tollerance of fit is needed
more for robustnes , wooden forms are fine for one offs , but the newer
composite form material it's easier to form by cnc
and quicker than using wood and then treating the forms with resin or
filler and sanding etc .


On 17 August 2016 at 10:29, andy pugh  wrote:

> On 16 August 2016 at 23:49, Gene Heskett  wrote:
> > The local casting shop seems to be using machined alu forms, and I have
> > seen no evidence they can take a pattern & do all the work to make it
> > sand castable. I haven't toured the whole place, so I've not seen the
> > furnace, just the casting finishing.  Wheels hubs for IH & I believe
> > White truck tractors.
>
> They are probably using match-plate patterns in a continuous line and
> won't be wanting to do one-offs.
>
> However, for any foundry using cope-and-drag there is no difference
> between making 1 and making 100, the process per casting is identical.
>
> Some possibilities here:
> http://wiki.vintagemachinery.org/FoundrySources.ashx
>
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is
> designed for the especial use of mechanical geniuses, daredevils and
> lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1916
>
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

[Sarah Armstrong]

thanks for posting Rene ,
your post will certianly help me , cover the areas iv'e missed
i'm also using stm32's

Sarah

On 12 August 2016 at 22:25, Rene Hopf  wrote:

>
> > On 12 Aug 2016, at 16:19, Florian Rist  wrote:
> >
> > Yes, I'd b interested, especially in OMM and OMI.
>
> this is an omm having a rather interesting conversation with an omp40.
> I haven't measured the OMI yet, but I have it all here.
> includes turn on, probe, and turn off.
> https://seafile.ist-wunderbar.com/f/af8b6dec5c/
> you can open the file with this software: https://www.saleae.com/downloads
>
> I also have some code for an stm32f4 which turns the probe on.
> https://github.com/rene-dev/stmbl/blob/master/src/comps/probe.comp#L70
> 
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

[Sarah Armstrong]

forgot to add to my previous ,

they use an ir signal from the reciever box to switch the unit on
so long as the probe is recieving then it remains transmitting , on loss it
times out and switches off
this signal can include requesting the probe battery status etc , but i
have not yet decoded that





On 12 August 2016 at 09:11, Sarah Armstrong <sarahj.armstron...@gmail.com>
wrote:

> i had the same problem with a Renishaw ir probe , so i reverse engineered
> the ir protocol
> took me a few nights to sort it .
>
> they send a packet continuosly, and on contact touch the data stops
> in the packet is id , batt condition, and a checksum
>
> i'd guess they may have done something similar
>
>
>
>
>
> On 12 August 2016 at 07:57, Dave Caroline <dave.thearchiv...@gmail.com>
> wrote:
>
>> I have a Valeron probe that also had an infra red transmission, was
>> too lazy to reverse engineer and just cleaned the contacts and wired
>> direct, some probes have adjustable force, some are set to a high
>> force mine was mounted on CAT50 so is a brute.
>>
>> http://www.collection.archivist.info/searchv13.php?searchstr=valeron
>>
>> Dave Caroline
>>
>> 
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

[Sarah Armstrong]

i had the same problem with a Renishaw ir probe , so i reverse engineered
the ir protocol
took me a few nights to sort it .

they send a packet continuosly, and on contact touch the data stops
in the packet is id , batt condition, and a checksum

i'd guess they may have done something similar





On 12 August 2016 at 07:57, Dave Caroline 
wrote:

> I have a Valeron probe that also had an infra red transmission, was
> too lazy to reverse engineer and just cleaned the contacts and wired
> direct, some probes have adjustable force, some are set to a high
> force mine was mounted on CAT50 so is a brute.
>
> http://www.collection.archivist.info/searchv13.php?searchstr=valeron
>
> Dave Caroline
>
> 
> --
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> are
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Re: [Emc-users] I did hit a lick today

[Sarah Armstrong]

iv'e used them a lot , in the same situation Gene ,
without any problems , just get the gap correct , and a nice clean switch
of logic , and they will be fine
in fact they are pretty resiliant even when crudely set .

i love them

Sarah

On 22 July 2016 at 05:43, Gene Heskett  wrote:

> On Thursday 21 July 2016 23:54:31 Gene Heskett wrote:
>
> > Greetings all;
> >
> > Just for S I stopped at the place that still has that old Porter
> > lathe he wanted $500 for a couple years ago. About a 16"er, 6 foot or
> > more bed, but no motor.  It would have been at least a year at my pace
> > to bring it back to life.
> >
> > But that wasn't the surprise.  That was in the form of an old air
> > compressor he had taken as junk from the local horsepistol in a
> > remodel/upgrade of some sort. One big horizontal tank, with two
> > overhead pads on it, each of which held a single cylinder, 1 hp
> > compressor, and each had its own 1HP 3 phase 230 volt Dayton motor
> > that spun very freely and had no endplay, so since the bearing numbers
> > were on the label, I have to assume ball bearing. I offered him 50
> > bucks for both of them.
> >
> > Next thing I knew, he was dragging out the cutting torch because the
> > bolts were rusted and hard to get to, so both are sitting on my garage
> > floor right now.
> >
> > I have company, 2 of my boys will be in Sunday thru Tuesday this next
> > week, so we'll have to make a trip, maybe two, to the rifle range, but
> > if I can find a round tuit before then, I'll have both of them
> > clipleaded to that 1.5 HP rated inverter & see how they like running a
> > bit faster than 60 hz for 1750 revs.
> >
> > In other words, I found a motor, and with luck a spare that I can run
> > with linuxcnc for rigid tapping and such on this Sheldon.  One more
> > problem solved, although I may have to build a lock pin of some sort
> > to keep from unscrewing the chuck with a quick reverse.  And now I
> > need to find where to put an encoder on it.  More shade tree
> > engineering I think.
> >
> > So things are looking up at a bit better angle. ;-)
> >
> > Cheers, Gene Heskett
>
> I just went out and stared at it for a couple minutes, and something
> along the lines of Jon's Bridgeport and the hall effect sensors Jon
> Elson used looks doable.  But with this motor potentially having the
> ability to do 8k rpms with this inverter, and the big gear on the
> spindle right behind the front bearing looks like a good candidate, but
> this motor has the ability to turn the spindle well above the 1300 it
> can do now (faster than I'd be comfy standing in line with it) and thats
> about 10EE20 teeth a minute gong by a hall when its throwing lube oil 20
> feet.  So my question is, since that gear must have at least 100 teeth,
> are the halls that fast?
>
> I just pulled the allegro ATS-667 datasheet to see if I can get any
> schmardter. Looking at that, 10u-s on delay, sub-microsecond off delay,
> So it should to twenty kilohertz. So it should work up to anything I'd
> be comfy around. I'll have to eyeball some more for an index trigger
> though.
>
> Cheers, Gene Heskett
> --
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> Genes Web page 
>
>
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Re: [Emc-users] Spindle control panel breaks LinuxCNC?

[Sarah Armstrong]

very difficult without a crystal ball
you'll need to post your complete config folder as an archive somewhere ,
not just snips .
so we can mimick your installation .

it could be you have the spindle enable reversed in hardware , hence it
works but not from the gui . ( easily done )
use the hal configuration watch windows and make sure you have them working
in the correct sense  true / false etc



On 16 June 2016 at 10:16, Gene Heskett  wrote:

> On Thursday 16 June 2016 02:57:46 Danny Miller wrote:
>
> > I have an X200 VFD.  M3,M5,S18000 work fine, from MDI or code. My
> > MPG's "spindle" button works.
> >
> > On the default panel, there's a "Spindle" button flanked with a CW/CCW
> > indicator.  Clicking any of that doesn't make the spindle go, even
> > with "S" set to a valid RPM.
> >
> >
> > It's not JUST that.  Once you click on any of that, the VFD *will
> > never run again* until power is cycled.
> >
> >
> > Any idea why this is?  It's a pretty serious problem because others
> > are using this machine.
> >
> >
> > Danny
>
> People here, smarter than me on vfd's will have to see your .ini and .hal
> files.  There are several pastebin type sites around, so pick one that
> isn't passwd protected, and set a 15 day expire so it doesn't hang
> around long after that copy has been fixed.
>
> Cheers, Gene Heskett
> --
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> Genes Web page 
>
>
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Re: [Emc-users] linux forum

[Sarah Armstrong]

only Linuxcnc.org
but if theirs anything specific , just ask the question !


On 26 May 2016 at 09:24, Fred  wrote:

> Hello Chaps
>
> I am looking for a linuxcnc forum to belong to.
>
> I found this mailing list which is sending me dozens of emails every day .
>
> Unfortunately I cant give the mailing list my attention because of work
> commitments
>
> My Question .
>
> Is there a linuxcnc forum that runs like a classical forum that one can
> belong to and browse
>
> the topics at your leisure??
>
>
>
> best regards
>
>
>
> Fred Evans
>
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Re: [Emc-users] Need some advice --> OT

[Sarah Armstrong]

with technology as it is these days , i just pay the person directly from
bank to bank
using either Paypal or Bank transfer , takes seconds . so long as you have
access to a pc , or a smartphone

and the beneifit is it's all traceable so they cant say they never got it
etc
iv'e transfered moneys , gave the system a few mins , and the person i pay
can check that the payments theirs , straight away

all banks have a limit that if the amount is over , they internally check
it for money laundering etc , in the UK it's £10,000
if i feel they might be a problem , i inform the bank 24 hrs before the
transaction . up to now never had a problem .

but their again the USA are werid ! LOL


On 16 May 2016 at 01:21, Chris Albertson  wrote:

> On Sun, May 15, 2016 at 4:24 PM, Nicklas Karlsson
>  wrote:
> > Well it is rather simple, justice should be paid by those who benefit or
> unstable society is created. These kind of laws should be to stop crimes
> not confiscate property. Confiscate property is called a fine and unless
> paid property could be sold to get money. It should only be allowed to
> confiscate property illegally transferred. Since value should not be
> confiscated once fine is paid and other punishment is done value left
> belong to the owner who ever it is. To put in another way the government
> should not be allowed to take money for nothing not even from those they
> claim are criminals because this is what usually is called theft.
>
> Hey thinks ARE getting better.  In the past the cop would just take
> the money and pocket it.  Yes that is called theft but what's a drug
> dealer to do about it?   Then they past these "Civil Forfeiture'' laws
> to formalize the process and make sure the money is shared with the
> rest of the department.
>
> But as I said, it's getting better.  Now everyone has a cell phone
> that can record video so cops have to be a little bit more carful
>
> Better also as some new cars keep log files and can tell if the car
> stopped at the light or how fast it was going or if a tail light was
> in fact out.
>
>
>
> >
> >
> > On Sun, 15 May 2016 17:16:07 -0500
> > Jack Coats  wrote:
> >
> >> The "Civil Forfeiture'' laws are what you are discussing.  Yes,
> traveling
> >> with large amounts of cash seems to make you the target of this
> especially
> >> when traveling long distances.  It is a law designed to help reduce the
> >> drug trafficking by allowing law enforcement to capture suspected 'drug
> >> money' and use it to supplement the budget of local law enforcement. ...
> >> To many agencies are using it as a 'revenue enhancement tool' instead
> and
> >> not using it as the law was initially intended, especially since it is
> >> easier to find and acquire and you don't have to do any ugly things like
> >> take anyone to court or arrest them or marandize them.  The are
> effectively
> >> 'arresting the money' or other assets, not the people carrying the
> assets.
> >>
> >> Here in TN it has been a real problem and some laws are coming down to
> make
> >> it less 'profitable' for the agencies to use this law and to allow for
> >> easier and faster recourse for the property owners to sue to get the
> >> money/assets back.
> >>
> >> The way is its being described in the media is that if you are caught
> with
> >> large sums of money (in TN on I40, mainly going from East to West, since
> >> drugs tend to flow West to East), the money is arrested, not the people
> >> carrying it, because it is ASSUMED that large sums of money is ONLY
> used to
> >> purchase drugs.  Some families on vacation, persons going to purchase
> show
> >> cars, etc seem to be the easy targets since many carry cash for this
> >> purpose.  I could see folks going to purchase large machine tools or
> >> material could be caught in this fiasco as well.
> >>
> >> Locally there have been various expose's by TV anchors to get this
> stopped,
> >> or at least increase viewership.  I guess it is working since
> legislation
> >> keeps coming up to stop this or at least curb the efforts.  I do not
> know
> >> the current state of this legislation.
> >>
> --
> >> Mobile security can be enabling, not merely restricting. Employees who
> >> bring their own devices (BYOD) to work are irked by the imposition of
> MDM
> >> restrictions. Mobile Device Manager Plus allows you to control only the
> >> apps on BYO-devices by containerizing them, leaving personal data
> untouched!
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> >
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> > 

Re: [Emc-users] hal edm (User interface)

[Sarah Armstrong]

Nicklas ,
whats needed for the edm interface , i'll dig into it if needed
and probably design an easy addon for linuxcnc later.
so Keep me in the loop.

Sarah


On 13 May 2016 at 13:52, Nicklas Karlsson 
wrote:

> I got measurement for EDM generator voltage an current into linuxcnc but
> do now where to put them.
>
> User interface need to be modified. As is now there is now in motion
> module there is motion.spindle while motion.edm is needed, any ideas?
>
>
>
>
> On Mon, 9 May 2016 11:49:06 +0800
> Thomas Powderly  wrote:
>
> > Hello Nicklas
> > yes the halcmds are but not the Mcodes
> > also you need python ( any version )
> > and for python, 2 libraries 'sys' and 'subprocess'
> > PeteG is working on WEDM with paths ( not linuxcnc )
> > i am working on sinkEDM using linuxcnc to 'pose' the tool and HAL to cut
> > good to hear from you
> > tomp tjtr33
> >
> > On 05/08/16 23:51, Nicklas Karlsson wrote:
> > > Just had to finnish stepper decimal point first and should continue
> with my EDM now. Are the halcmd commands used in your files already part of
> linuxcnc?
> > >
> > > On Sun, 8 May 2016 19:11:31 +0800
> > > Thomas Powderly  wrote:
> > >
> > >> here ya go
> > >> 1st install of PD EDM technology
> > >> OpenEDM.org ;-)
> > >> tomp tjtr33
> > >>
> > >> lemme know what, if any,  makes sense
> > >>
> > >> pete I cc'd Seb K of linuxcnc
> > >> and nicklas karlsson
>
>
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Re: [Emc-users] wj200 vfd "wait-for-speed"

[Sarah Armstrong]

check that your spindle encoder is running correctly , and counting in the
correct directions up/down etc


On 29 April 2016 at 19:05,  wrote:

> Hmm I just noticed it started moving while the spindle was still spooling
> up.  But that may have only been G0 moves it allowed.  I just saw motion
> and became concerned.
>
> If it waits if it encounters a G1 before is-at-speed=TRUE, then that's
> already perfect!
>
> Danny
>
>
>  Chris Kelley  wrote:
> > Do you have wj200-vfd.N.is-at-speed connected to motion.spindle-at-speed?
> > Have you checked to make sure that wj200-vfd.N.is-at-speed is only going
> > true when expected?
> >
> > We have several machines set up to use the motion.spindle-at-speed pin
> and
> > have never had a problem with it working incorrectly. Just remember that
> it
> > is only supposed to stop the _first_ feed move after a spindle start or
> > speed change. It's not supposed to pause/hold any rapid moves.
> >
> > On Fri, Apr 29, 2016 at 1:11 AM, Danny Miller 
> wrote:
> >
> > > I have a VFD running on:
> > >
> > > http://linuxcnc.org/docs/html/man/man9/wj200_vfd.9.html
> > >
> > > Actually it's an X200 VFD and the code is slightly different, but
> that's
> > > not important.
> > >
> > > I noticed that it doesn't wait for the spindle to get up to speed when
> > > started in-code.  It just goes.
> > >
> > > What are my options here?  I could write a HAL for "if spindle.on and
> > > !spindle.at-speed and !paused, set Pause to true", but that sounds
> > > overly complicated, and I can't release it with "if spindle.on and
> > > spindle.at-speed and paused, set Resume to true" because the user may
> > > have requested a pause and that would spuriously cause  a resume.
> > >
> > > Danny
> > >
> > >
> > >
> > >
> --
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Re: [Emc-users] LinuxCNC as laser cutter?

[Sarah Armstrong]

Linuxcnc works fine for Laser cutting ,

Laser rasterising is a totally different matter , and needs to be looked at
from a different perspective
it also depends on how your laserbeam is switched , and the modulation type
used .
their is some limited information regarding rasterising on the Wiki Pages .



On 30 April 2016 at 13:22, Nicklas Karlsson 
wrote:

> If you have problem with PWM signal generation there are plenty of cheap
> micro controller development board available although protocols may be
> worse. I guess it could be an idea to search m-codes for "professional"
> laser cutters or maybe reuse codes usually used for spindle.
>
> 2016-04-30 3:48 GMT+02:00 Bruce Layne :
>
> > I still haven't built my 3' X 5' 80W CNC laser, but it'll be controlled
> > by LinuxCNC when I do.  I've had a big pile of laser parts for almost
> > three years.  Maybe later this summer, if I finally find some mojo.
> >
> > LinuxCNC is better for cutting and embossing/engraving lines. LinuxCNC
> > is not good for raster laser engraving.  Most of my laser jobs are
> > cutting and light scoring which are essentially vector jobs, but I do
> > have a few logos that are currently raster engraved on a friend's laser,
> > which is essentially operating as a Windows printer using a proprietary
> > printer driver, under CorelDraw.  My logos are simple, made of solid
> > shapes, and I expect to render them as vector engravings by outputting
> > vector image files from Inkscape.  That's the plan, anyway.  If you want
> > to laser engrave photographs, you will probably need some way to raster
> > engrave.  In that case, LinuxCNC may not be a good option for you.
> >
> > I've seen a few CNC lasers that used the -Z hack to turn the laser on,
> > and that does have a certain simplicity, but I think it's too kludgey
> > with too many tradeoffs and undesirable behaviors from the trajectory
> > planner.  I plan on using M codes to turn the laser on and off.  I also
> > plan on using the Z axis to drive stepper motors to jog the table
> > elevation when setting up a job at the correct height.  In theory, I
> > could laser engrave 3D objects by using the Z axis as well, but I don't
> > plan on using any Z motion in my laser G code, other than maybe a fixed
> > Z offset at the beginning from the homed Z position is I decide to have
> > a hardware Z=0 with relative offsets from that for each job.  I also
> > plan on a light duty 4th axis for laser cutting round objects.  One of
> > my production jobs requires laser cutting and embossing cylindrical
> tubes.
> >
> > For reduced power settings, I'll pulse width modulate a signal to turn
> > the laser on and off fairly quickly.
> >
> > Many people would assume that it'd be easier and faster to draw
> > something in CorelDraw and "print" it on the laser, but I hate it, and
> > would much rather have direct control of the G code.  The CorelDraw
> > print driver for the laser may be faster when making one or two of
> > something, but it gives me no control over the order in which features
> > are cut on the laser, which results in clumsy production jobs that are
> > difficult to run because the order of subsequent steps are random, and
> > there is a lot of wasted motion.  I want the control that I get writing
> > G code by hand, in a logical progression.  To some extent, this is an
> > extension of the lack of control I have in Windows, compared to Linux.
> > I think it's more of a philosophical difference than a technical
> > difference.
> >
> > Sorry, but I haven't implemented any of this LinuxCNC laser stuff yet,
> > so I have only this generic advice and no specific LinuxCNC example code.
> >
> >
> >
> > On 04/29/2016 08:29 PM, Danny Miller wrote:
> > > Having some preliminary thoughts about LinuxCNC's appropriateness to be
> > > a laser cutter, like 120W CO2.  The other option is the open-source
> > > Lasersaur or Axecut.   Those aren't particularly advanced trajectory
> > > planners or anything.
> > >
> > >Can it be a good tool for lasering?
> > >
> > > I did see where some people had done it with some hacks, but I don't
> > > know how practical they are.  There was something about using a
> negative
> > > Z-value to turn on the laser.
> > >
> > > A lot of things come to mind.
> > >
> > > One, often the laser needs to turn on and off quickly, without
> > > stopping.  If it's technically implemented as a Z-move, it would slow
> to
> > > move the nonexistent Z-axis.  Would that work by just changing the
> > > Z-acceleration to something ridiculously high?
> > >
> > > Two, sometimes we do reduce the cut power, to only mark the surface
> > > instead of cutting it.  Initially you reduce the depth of cut by
> > > increasing speed, but if it's paper, you can't increase the speed
> > > enough, you have to cut back on the power.  And the required power will
> > > change inside the document.  How would that get specified, just with a
> > 

Re: [Emc-users] Metals question

[Sarah Armstrong]

Cast Iron is the better Gene ,
the larger in Dia you can manage the better , it helps spread the load over
the whol carrage rather than just the area of the toolpost
i have a similar block on mine which is only an 1 3/8 high x 3 , i should
have made it at least another inch or two in dia

the only fixing is the through bolt from the carrage , which i made as
close a sliding fit as possible.



On 25 April 2016 at 11:29, Gene Heskett  wrote:

> Greetings all;
>
> I may have found the source of some of my tool destroying chatter.
>
> I pulled the compound off this POS last night, and discovered that it was
> not sitting solidly, flat cast iron to flat cast iron at the mating
> faces, but was rocking on the corners of that screwed onto one bolt-on
> on the left face that has the angle markings on it.
>
> Its attached with flathead screws, and its either take it off, or lap it
> off.  I did the latter on a sheet of 600 wet-r-dry swimming in cutting
> oil on my granite flat.
>
> For me, since its function can be done by LCNC, it is nothing but a
> spacer 1.6" tall to hold the QC post. So I have considered replacing it
> with a round block of metal nominally 3" in diameter so it would sit
> solidly on the cross slider, be 1.6" thick so it would hold the QC post
> at a usable height.
>
> Having a massive weight there would make sense to me, so while I have a
> big block of aluminum, I haven't done it out of that as steel or cast
> iron would add mass which "should" reduce the chatter, plus alu will
> scratch and dent much easier from toolpost movements its not supposed to
> do but does. I also noted that the toolposts thru bolt, a 10mm stud,
> does not screw into the top of the compound slider more than about 3
> turns because its not tapped deep enough, and having stripped that
> thread in one slider already from trying to tighten the tool post to
> keep it from turning when I am deepening a center drilled starter hole
> with a drill bit, not in a chuck in the tailstock, but in chuck screwed
> onto round rod in a boring bar tool carrier which can easily beat the
> socks off using the poorly aligned tailstocks limited barrel travel for
> that.
>
> As there is surplus stud above the nut, that will get extended about 3
> turns of the tap, giving some much needed additional thread engagement
> so I can put a little more muscle on the wrench without stripping out
> the threads in the compound.
>
> But I want this compound gone as it limits the toolpost placement such
> that the tool tip is often beyond the puny footprint of the main
> carriage where cutting forces can and have on hundreds of occasions been
> more that sufficient to lift the right edge of the carriage off the bed
> by whatever clearance the gibs might allow, which tips the tool into the
> workpiece enough that the tool digs in and locks the spindle dead from
> several hundred revs in just 2 to 5 degrees of rotation. As you can
> imagine thats also broken drive parts up to and including a bent gear
> shaft in the backgear.  Because of this, I intend to bore the bolt hole
> for the toolpost about 3/4" off-center so that I can displace the
> toolpost to the right, pulling the tool tip back into a position where
> it has carriage enough under it to prevent this tipping even if the gib
> might allow a couple thou's motion.
>
> But I want a plain metal block, and will goto the re-cyclers place today
> looking for a starter piece to make this from.
>
> If one of you had a choice of a block of cast iron this 3" diameter, 1.6"
> thick piece could be carved out of, or a piece of bar steel of unk
> additives but likely 1065, both in the iron pile, which would you use?
>
> Cheers, Gene Heskett
> --
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> Genes Web page 
>
>
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Re: [Emc-users] Gantry Component

[Sarah Armstrong]

yea that would account for it

On 22 April 2016 at 13:03, John Thornton <j...@gnipsel.com> wrote:

> Hi Sarah,
>
> I'm thinking this morning that I might have the switches crossed so
> motor 0 is hitting the switch for motor 1. We will see in a bit.
>
> JT
>
> On 4/22/2016 4:21 AM, Sarah Armstrong wrote:
> > re:gantry John ,.
> >
> > i'm guessing by the state number and error , that your second Y axis ,may
> > well have hit the limit switch, before the the logic switches between the
> > Y1 & Y2
> > so it sees the Y1 limit as hit , when it should be homing . so for me a
> > slight change in the logic needed , i./e home the second Y2 before
> > switching to Limit mode
> >
> > so and Y1 & Y2 first , need another look and setup a machine here i think
> >
> >
> >
> > On 22 April 2016 at 00:48, John Thornton <j...@gnipsel.com> wrote:
> >
> >> I have the gantry moving but homing fails with hit limit in home state 7
> >> and joint 1 on limit switch
> >>
> >> http://gnipsel.com/files/emc/Gantry.zip
> >>
> >> JT
> >>
> >> On 4/21/2016 2:50 PM, John Thornton wrote:
> >>> I'm trying to understand the gantry component and I've almost got it
> >>> working but not quite. Both Y motors spin but are slow to spin up then
> >>> they don't stop... I assume I'm missing some part of the big picture.
> >>> The config is located here:
> >>>
> >>> http://gnipsel.com/files/emc/Gantry/
> >>>
> >>> What I did was take the config from the forum and tried to understand
> >>> the chain of motion for the two motors...
> >>>
> >>> JT
> >>>
> >>>
> >>>
> >>
> --
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> >>
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Re: [Emc-users] Gantry Component

[Sarah Armstrong]

re:gantry John ,.

i'm guessing by the state number and error , that your second Y axis ,may
well have hit the limit switch, before the the logic switches between the
Y1 & Y2
so it sees the Y1 limit as hit , when it should be homing . so for me a
slight change in the logic needed , i./e home the second Y2 before
switching to Limit mode

so and Y1 & Y2 first , need another look and setup a machine here i think



On 22 April 2016 at 00:48, John Thornton  wrote:

> I have the gantry moving but homing fails with hit limit in home state 7
> and joint 1 on limit switch
>
> http://gnipsel.com/files/emc/Gantry.zip
>
> JT
>
> On 4/21/2016 2:50 PM, John Thornton wrote:
> > I'm trying to understand the gantry component and I've almost got it
> > working but not quite. Both Y motors spin but are slow to spin up then
> > they don't stop... I assume I'm missing some part of the big picture.
> > The config is located here:
> >
> > http://gnipsel.com/files/emc/Gantry/
> >
> > What I did was take the config from the forum and tried to understand
> > the chain of motion for the two motors...
> >
> > JT
> >
> >
> >
> --
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>
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Re: [Emc-users] Question on DM860 stepper drivers

[Sarah Armstrong]

simply drop the high microstepping , you dont need it , high microstepping
= missing steps , and decreaced Torque
Microstepping should only really be used for removing resonance .

On 20 April 2016 at 09:20, Nicklas Karlsson 
wrote:

> > Greetings;
> >
> > One of the things I am noticing, when running this crippled Z drive at
> > various speeds, is that up to about 3/4 rps at its shaft, it moves dead
> > silently, but by 2 rps, its rattling tools off the table, exactly as if
> > is was being full stepped, and it doesn't become at all smooth again
> > until its moving the head at 25 ipm or more, then stalls at just under
> > 48 ipm.
> > ...
> > What say you folks?  Will this truly solve it?
>
> I would guess resonance or step signal have to toggle between two
> different frequencies but have no experience. An oscilloscope would tell if
> there are problems with the step signal. I can also tell if stepper driver
> behave as expected.
>
>
> Nicklas Karlsson
>
>
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Re: [Emc-users] Need a square waveform with variable duty cycle and observe it on CROscillioscope

[Sarah Armstrong]

is this to drive a rc brushless motor ?
http://wiki.linuxcnc.org/cgi-bin/wiki.pl?RC_Servo_Test


On 15 April 2016 at 15:05, andy pugh  wrote:

> On 15 April 2016 at 14:49, adit bhargava  wrote:
>
> > I am new to LinuxCnc and need guidance for my task "" To generate a
> square pulse of variable duty cycle.In my case, (T-On = 2 ms and T-Off =
> 4.7 ms)  ""
>
> Have you considered using pwmgen?
>
> Set it up for 149.25Hz and 29.9% duty cycle and yo should get what you
> want.
>
> --
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> designed for the especial use of mechanical geniuses, daredevils and
> lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1916
>
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Re: [Emc-users] Configuring TB6560 Stepper Drivers

[Sarah Armstrong]

this all depends if you have connected the EN - ( enable - ) of the stepper
drives ,
all the + pins go to 5v
step -  = pul & dir - = direction

if you have it's probable that you have this inverted or requires inverting
, for testing just leave this unconnected until you have everything running
beware some Bobs also require an enable input , although at first glance
this particular board looks straightforward


On 26 March 2016 at 13:13, Gene Heskett  wrote:

> On Saturday 26 March 2016 02:49:55 jeshua wrote:
>
> > Greetings,
> >
> > I am attempting to assist a friend setting up a HY-JK02-M 5-axis
> > Interface Board with Axis running HY-DIV168N-3.5A drivers.
> >
> > Controller Manual:
> > http://www.tecnoflexo.com.br/site/fotos/download/17/17.pdf Driver
> > Manual:
> > http://www.goodluckbuy.com/images/detailed_images2/file/76081%20HY-DIV
> >168N-3_5A.pdf
> >
> > Actually, seems like the interface board is all properly configured,
> > but we cannot get the motor to move. In the stepper config, when we go
> > to test the drive the stepper comes on and holds its position. We can
> > see the correct axes led indicator light up when it is commanded to
> > move. But no motion. Axis launches, and the machine power button works
> > as expected. No motion though.
> >
> > I found someone running the same configuration here:
> >
> > http://www.technoshamanarchist.net/?p=98
> >
> > It states calculated these values:
> >
> > Step time: 3 ns
> > Step space: 8500 ns
> > Direction Hold or Direction Setup values, some people set it to 2
> >
> > But then thats all it states on the configuration and never confirms
> > if it those values work or not (next post is running). We have the
> > cards wired up exactly the same as shown in the pictures.
> >
> > Also, in videos I have seen of the driver in action, they have two red
> > LEDs lit, we only have one power LED lit, we can’t get the “run” LED
> > on.
> >
> > Any suggestions would be greatly appreciated.
>
> I am not fam with that driver Jeshua, but most of these  drivers have 3
> inputs, step, dir, and enable. I suspect the enable might not be wired
> correctly.  In my setups, using the 2m542 driver, IIRC leaving the
> enables unconnected actually enables them.  Or  you can use a pin on the
> BoB to drive all 3 of them if the BoB's output has enough current
> sinking ability to drive all the axis's drivers, and you actually have a
> spare pin on the BoB.
>
> I just checked the .hal file for my G0704, and the only place I am
> sending the motion modules axis#-enable signals is to the pid's &
> stepgen's in the 5i25, so I either do not have the driver enables wired
> to the BoB, or they are wired permanently in the on state.  Probably the
> latter, and I can get a ladder (that box is on a high shelf to miss most
> of the swarf but the lid is off, when I find my round tuit, I'll modify
> a drill pattern and put an exhaust fan on the lid) and check because I
> know all the + terminals are hard wired to a 5 volt bus, but do not,
> nearly 2 years later, remember if I just grounded the - terminals, or
> they are tied someplace active.
>
> But that is something to check, the 6550 may have to be wired "on" at its
> enable input. I do not have manual wheels on any axis, so no reason to
> disable the drivers to make them easier to turn exists.
>
> This may not be the problem, but its also something that might trip up a
> builder. I hope it helps.
>
> > Best,
> >
> > Jeshua Lacock
> > Founder/Engineer
> > <3DTOPO.com>
> > GlassPrinted.com
>
> Cheers, Gene Heskett
> --
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> -Ed Howdershelt (Author)
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>
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Re: [Emc-users] R: Clone a HD

[Sarah Armstrong]

clonezillia is better for a number of reasons , it may seem complex but
you'll soon get the hang of it
the problem with using dd is it will also copy temp files, temp drive and
your uuid's to the cloned drive , amongst other things
you also dont want to be using the drive that your copying ... ( might
sound obvious now )

also if your copying to drives of different sizes dd wont like it ,
clonezilla will only copy whats needed and not all the blanks as dd will
just , well copy everything blind . clonezilla works as a live cd , so your
not running the drive your copying .

dd works fine dont get me wrong , ok if it's your own machines , but if
it's for clients then i'd use clonezilla .
and if the drives are large like 1tb or 3 then look for around 6 hours of
doing nothing .

just my 2 pence worth JT .

personally i use rdrive image (http://www.drive-image.com ) & clonezilla
depends on how much of a rush i'm in




On 20 February 2016 at 13:48, John Thornton  wrote:

> I looked at Clonezilla and it seems way more complicated than using dd.
>
> Thanks for the idea.
>
> JT
>
> On 2/20/2016 5:51 AM, Alex Chiosso wrote:
> > Try to use Clonezilla. ;-)
> >
> > - Messaggio originale -
> > Da: "John Thornton" 
> > Inviato: ‎20/‎02/‎2016 12:38
> > A: "EMC Mailing List" 
> > Oggetto: [Emc-users] Clone a HD
> >
> > I see two ways to clone a HD on the web one using dd and one using tar.
> >
> > Boot from the live cd. Mount your destination media to (say) /mnt.
> >
> > dd if=/dev/sd whatever of=/mnt/mybackup.ddimg
> >
> > In this case what do they mean by mount?
> >
> > Mount the source to /mnt, mount the destination to /home (say)
> >
> > tar cvfpz /home/mybackup.tar.gz   /mnt
> >
> > does this tar create a copy of the whole disk?
> >
> > Thanks
> > JT
> >
> >
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Re: [Emc-users] Software that can mirror image G-code?

[Sarah Armstrong]

why not mirror parts using G41 G42 far quicker

On 13 February 2016 at 10:56, linden  wrote:

> Have a look at this it i am not sure if you can mirror with it i don't
> think so, but it is python and may give some smarter people than me
> ideas how Gene method may be automated. I have found this a very useful
> tool along with his F engrave.
>
> http://www.scorchworks.com/Gcoderipper/gcoderipper.html
>
> I am not affiliated with this work at all just grateful for the kindness
> of this person for sharing his code and this useful to me any way tool.
>
> linden
>
>
> On 16-02-13 02:17 AM, Gene Heskett wrote:
> > On Saturday 13 February 2016 04:18:28 Gregg Eshelman wrote:
> >
> >> Is there a program, preferably for Windows, that can read a G-code
> >> file and make an altered copy to produce a file that will produce a
> >> mirror image of the original?
> >>
> >> I've done one that took quite a lot of work to get right, now I need
> >> the code to cut the same part for the other side of the car.
> >>
> > In gcode, if Y=0 goes down the centerline, or can be adjusted to make it
> > so, its pretty easy using the editors search & replace.  ake a 2nd copy
> > of the file, calling it the other side.
> >
> > Then If the Y is always followed by the # sign beginning a variable
> > reference, then search for Y# in the second copy of the file, and
> > replace it with a Y-#.
> >
> > Or for some part like a door handle, just negate as above, all the Y
> > values.  If Y values are present in both polarities, you'll need to use
> > a dummy axis for a temporary scratchpad, like swapping all the Y# to W#,
> > then swap the Y-# to Y#, then swap the W# to Y-#, which will mirror it
> > about the Y=0 centerline.
> >
> > I have used this general idea quite a few times to fix pcb-gcode outputs
> > where the mirror for the double sided pcb was mirrored along the wrong
> > axis.  That, and using 2 different co-ordinate maps to offset the length
> > of the board, thereby resulting in thru holes drilled 55% of the way
> > thru the board on one side, meeting perfectly, the same hole drilled 55%
> > of the way thru the board from the other side when making a double sided
> > pcb.
> >
> > pcb-gcode's docs could be a bit clearer in describing what an option
> > does, and it took quite a few repeats to get it down to just the
> > co-ordinate mapping needed to offset the mirrors width.
> >
> > HTH, Gregg.
> >
> > Cheers, Gene Heskett
>
>
>
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Re: [Emc-users] Software that can mirror image G-code?

[Sarah Armstrong]

see the excellent book " cnc programming handbook 3ed by peter smid
page 409

or in the following link to version 2 of the book , section 41 , pg 393
https://www.dropbox.com/s/hujpvl8yvk5lbc8/CNC%20Programming%20Handbook.pdf?dl=0


On 13 February 2016 at 16:35, Gene Heskett <ghesk...@wdtv.com> wrote:

> On Saturday 13 February 2016 06:08:49 Sarah Armstrong wrote:
>
> > why not mirror parts using G41 G42 far quicker
>
> Zero documentation of that potential usage in the pdf docs?  The next
> person to see that code would shake his head at such convolution.  I'm
> looking at it, and would read that as applying a fixed offset, not a
> dynamic one.  And that doesn't pass the "does it make sense" test here.
>
> From that pdf:
> ===
> G41  (left of programmed path)
> G42  (right of programmed path)
> • D - tool number
>
> The D word is optional; if there is no D word the radius of the currently
> loaded tool will be used (if no tool is loaded and no D
> word is given, a radius of 0 will be used).
>
> If supplied, the D word is the tool number to use. This would normally be
> the number of the tool in the spindle (in which case
> the D word is redundant and need not be supplied), but it may be any
> valid tool number.
> ===
> Note the word "radius".
>
> Now Sarah, you wouldn't mention it unless you've done it. so please
> explain. :)
>
> Cheers, Gene Heskett
> --
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
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>
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Re: [Emc-users] Software that can mirror image G-code?

[Sarah Armstrong]

theirs no account needed it's mine ! LOL


On 13 February 2016 at 18:49, Philipp Burch  wrote:

> Hi Gene!
>
> On 13.02.2016 19:41, Gene Heskett wrote:
> > [...]
> >
> > Might be nice, but not accessable to see it without creating an account.
>
> The dialog box may give this impression, but in fact you can just click
> the link "No thanks, continue to view" at the bottom, which will give
> you the option to download the document. Or just click somewhere on the
> outside of the box.
> The file weighs 144MiB, though, so better have a decent connection or a
> lot of spare time :)
>
> Bye,
> Philipp
>
>
>
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Re: [Emc-users] Modbus wiring

[Sarah Armstrong]

yea  it's a bit short on pins
i use these
http://www.ebay.co.uk/itm/Useful-80mm-USB-2-0-to-RS-485-RS-422-Serial-Converter-Adapter-Cable-ST-/151912461839



On 8 February 2016 at 13:16, andy pugh  wrote:

> I am tempted to attempt to control the lathe VFD with Modbus.
>
> I have one of these:
>
> http://www.ebay.com/itm/CH340-USB-to-RS485-485-Converter-Adapter-Module-For-Win7-Linux-XP-Vista-/201258967189?hash=item2edbf82095:g:SDAAAOSw2s1UrPYd
>
> I need to connect to 8P8C connector on the VFD which has pins
> 1 A'
> 2 B'
> 3 A'
> 4 R
> 5 D
> 6 B'
> 7 DP5V
> 8 SG(GND)
>
> Is that ever going to work? The YSB dongle seems deficient in
> terminals by at least 1, possibly 4...
>
>
> --
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> http://www.ifixit.com/Manifesto
>
>
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Re: [Emc-users] Prempt RT on Linux Mint

[Sarah Armstrong]

i'm sorry but the topic or question was ? , as posted by the OP

On 3 February 2016 at 17:48, Rafael  wrote:

> On 02/03/2016 09:00 AM, John Kasunich wrote:
> >
> >
> > On Wed, Feb 3, 2016, at 11:49 AM, Rafael wrote:
> >
> >>
> >> Problem with all those boards is in the fact that they have no common
> >> bus so that others could build standard interfaces on open architecture.
> >> All seem to be built to replace a PC with most of it's functionality.
> >>
> >> Want to make a common box, bad luck. Everybody comes with their own
> >> silly PCB shape, hole positions, and names for add on boards, unsuitable
> >> connectors on all sides so you need space around them, or include chips
> >> that are not needed in embedded applications. Who needs audio or 4K
> >> video on 3D printer or small CNC machine?
> >>
> >> In that regard we are back to early 80's or later when some interfaces
> >> did not work in different PCs even though the connectors were the same.
> >>
> >
> > Another problem with all these boards is that they have "flash in the
> pan"
> > life cycles.  The PC was a stable and viable platform for over two
> decades,
> > and you can make an argument that it will remain so for perhaps another
> > decade before finally disappearing.
>
> You are right about "flash in the pan".
>
> However, PC evolved a lot since it's beginnings. Need for ever higher
> data transfer and adoption for use as servers changed everything.
>
> In order to fix a problem with one embedded system I had to pull out
> very old PC motherboard with IDE controller and old drive to get Linux
> working. Modern PC board would not work.
>
> Buses are changing from mostly parallel to serial. PCI is going that way
> and USB3.x is very promising. It's direction most computer vendors are
> taking. Simplifies cabling over longer distances if nothing else.
>
> > RasPI and Beagle and all these other things have life cycles more in line
> > with smart phones - this year's new shiny is considered obsolete next
> year,
> > and the replacement is far less likely to be a "drop-in", so you wind up
> > needing new breakout boards or other interface hardware.
>
> Isn't that frustrating? Original Beaglebone way different from the next
> generation, better but still not that great. You can't stack more that 2
> or 3 interfaces on one SBC, they have to be in correct order because of
> high connectors in some cases, and you cannot touch PCB in the middle
> with the scope probe.
>
> I wish people would go to computer museum and see how others dealt with
> this kind of problems before they go to Kickstart or some such to start
> yet another SBC project for entertainment use mostly.
>
> Computer history repeats itself it seems. Mainframes to PCs, and now
> back to "mainframes in the cloud".
>
> --
> Rafael
>
>
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Re: [Emc-users] Mesa Reseller in America

[Sarah Armstrong]

unfortunately iv'e lost all confidence
in mesa

On 2 February 2016 at 13:04, Mark  wrote:

> On 02/01/2016 05:14 PM, John Thornton wrote:
> > 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
> > here Friday February 5th. As soon as I get everything checked in the
> > store will be up and running. www.mesaus.com
> >
> > Thanks
> > JT
>
> Outstanding John!  Great producst, and a great guy to be reselling!
>
> Mark
>
>
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Re: [Emc-users] Prempt RT on Linux Mint

[Sarah Armstrong]

i dont see why not , but the patch will be different probably , i'd need to
try it
why use ubuntu ? , thats another can of worms to get in the way .

debian now has the 2 desktops that minit as


things are moving away from ubuntu ,for lots of reasons , some of it is a
bit deeper , such as python bindings and servicing things such as
rt-preempt , kernels etc
they are now becoming vastly different . from what they were a few years
ago . and will become a even bigger nightmare over the next few years
which will mean ubuntu will not be able to be supported .



On 2 February 2016 at 12:42, John Thornton  wrote:

> Is it possible to build the Prempt-RT kernel on Linux Mint 13 based on
> Ubuntu Precise or Linux Mint 17 based on Ubuntu Trusty? This is to be
> able to use LinuxCNC uspace with a 7i92.
>
> Thanks
> JT
>
>
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Re: [Emc-users] Rigid tapping speed advice

[Sarah Armstrong]

Horsepower is you biggest enemy here , you need as much as you can get .

On 22 January 2016 at 17:58, Gene Heskett  wrote:

> On Friday 22 January 2016 12:43:35 tom-...@bgp.nu wrote:
>
> > This is the tap I am using:
> > http://www.mscdirect.com/product/details/58607482?rItem=58607482 The
> > drill I am using is 10.5mm which is 0.875 of 12mm so I would say that
> > seems fairly large.  The OSG online tool recommends a 27/64” (10.7mm)
> > drill, so I am very close (0.008” difference).  Also, if I was using
> > OSG's tap they recommend 23.8764 IPM which equates to a spindle speed
> > of 400 RPM.  I can try that (I used 300 RPM), but I suspect I am going
> > to have the same (torque) issue I had before.  And perhaps the answer
> > is I just don’t have enough torque at low spindle speeds to do it in
> > one pass…
> >
> > -Tom
>
> Spinning a 12mm tap in my G0704, in low backgear, will likely require a
> not more than 1/4 turn deeper per peck cycle. Its only a 1 horse.
>
> A 10mm tap made it do some serious belly dragging, but did get it done at
> a turn per peck.  It also did a 3/8 USS tap into a slightly undersized
> hole in a white ash jig base, but I used all the tap, at about a turn
> per peck.  Made great threads in the wood, and for a change, the studs
> stood dead straight up!
>
> > > On Jan 22, 2016, at 12:00 PM, John Thornton  wrote:
> > >
> > > What kind of tap did you use? I use only ElectroLube coated taps
> > > from OSG. OSG has an online tool to select the correct tap and drill
> > > for each job. I once had to deep hole tap in some 7075 and my normal
> > > taps broke off. I used the tool and got the right tap and drill so
> > > the hole size was correct for the job. Tapping charts usually use
> > > 75% thread depth which is usually OK for a depth = diameter, for
> > > deeper depths you need a bigger hole.
> > >
> > > JT
> >
> > --
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>
>
> Cheers, Gene Heskett
> --
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> Genes Web page 
>
>
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Re: [Emc-users] Rigid tapping speed advice

[Sarah Armstrong]

yes i agree , single point would be a far better option , when you dont
have the horsepower ,

On 22 January 2016 at 18:17, Bengt Sjölund <beng...@tecno.se> wrote:

> M12, why bother with tapping? Go for single point and no power issues
> like with tapping.
> Cheers
> Bengt
>
> Den 2016-01-22 kl. 19:12, skrev Sarah Armstrong:
> > Horsepower is you biggest enemy here , you need as much as you can get .
> >
> > On 22 January 2016 at 17:58, Gene Heskett <ghesk...@wdtv.com> wrote:
> >
> >> On Friday 22 January 2016 12:43:35 tom-...@bgp.nu wrote:
> >>
> >>> This is the tap I am using:
> >>> http://www.mscdirect.com/product/details/58607482?rItem=58607482 The
> >>> drill I am using is 10.5mm which is 0.875 of 12mm so I would say that
> >>> seems fairly large.  The OSG online tool recommends a 27/64” (10.7mm)
> >>> drill, so I am very close (0.008” difference).  Also, if I was using
> >>> OSG's tap they recommend 23.8764 IPM which equates to a spindle speed
> >>> of 400 RPM.  I can try that (I used 300 RPM), but I suspect I am going
> >>> to have the same (torque) issue I had before.  And perhaps the answer
> >>> is I just don’t have enough torque at low spindle speeds to do it in
> >>> one pass…
> >>>
> >>> -Tom
> >> Spinning a 12mm tap in my G0704, in low backgear, will likely require a
> >> not more than 1/4 turn deeper per peck cycle. Its only a 1 horse.
> >>
> >> A 10mm tap made it do some serious belly dragging, but did get it done
> at
> >> a turn per peck.  It also did a 3/8 USS tap into a slightly undersized
> >> hole in a white ash jig base, but I used all the tap, at about a turn
> >> per peck.  Made great threads in the wood, and for a change, the studs
> >> stood dead straight up!
> >>
> >>>> On Jan 22, 2016, at 12:00 PM, John Thornton <j...@gnipsel.com> wrote:
> >>>>
> >>>> What kind of tap did you use? I use only ElectroLube coated taps
> >>>> from OSG. OSG has an online tool to select the correct tap and drill
> >>>> for each job. I once had to deep hole tap in some 7075 and my normal
> >>>> taps broke off. I used the tool and got the right tap and drill so
> >>>> the hole size was correct for the job. Tapping charts usually use
> >>>> 75% thread depth which is usually OK for a depth = diameter, for
> >>>> deeper depths you need a bigger hole.
> >>>>
> >>>> JT
> >>> --
> >>>  Site24x7 APM Insight: Get Deep Visibility into Application
> >>> Performance APM + Mobile APM + RUM: Monitor 3 App instances at just
> >>> $35/Month Monitor end-to-end web transactions and take corrective
> >>> actions now Troubleshoot faster and improve end-user experience.
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> >>
> >> Cheers, Gene Heskett
> >> --
> >> "There are four boxes to be used in defense of liberty:
> >>   soap, ballot, jury, and ammo. Please use in that order."
> >> -Ed Howdershelt (Author)
> >> Genes Web page <http://geneslinuxbox.net:6309/gene>
> >>
> >>
> >>
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> >
> >
>
>
>
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Re: [Emc-users] linuxcnc-features-master

[Sarah Armstrong]

it looks like a path problem Gene,
it's trying to find the path to features.ui

if it runs from the command line , then check the path in your ini
( dont worry i had the same problem )

where have you placed linuxcnc-features ?
did you run the setup





On 4 January 2016 at 19:23, Gene Heskett  wrote:

> Greetings all;
>
> I have, I believe, after going over in "wiring up" procedure in the
> README.md file, done everything it seems to call for.  But linuxcnc
> falls over while initializing.
>
> Heres a paste from the cli:
> gene@coyote:~/linuxcnc/configs/sim.axis$ linuxcnc -l
> LINUXCNC - 2.7.3
> Machine configuration directory is '/home/gene/linuxcnc/configs/sim.axis'
> Machine configuration file is 'axis.ini'
> Starting LinuxCNC...
> Found file(REL): ./core_sim.hal
> Note: Using POSIX non-realtime
> Found file(REL): ./sim_spindle_encoder.hal
> Found file(REL): ./axis_manualtoolchange.hal
> Found file(REL): ./simulated_home.hal
> Found file(REL): ./check_constraints.hal
> task: main loop took 0.011922 seconds
> task: main loop took 0.012521 seconds
>
> (gladevcp:14154): libglade-WARNING **: could not find glade
> file 'features.ui'
>  GLADE VCP ERROR:With xml file: features.ui : could not create
> GladeXML object
> :0: gladevcp exited without becoming ready
> Embeded tab command "halcmd loadusr -Wn gladevcp gladevcp -c gladevcp -x
> 77594776 -U --catalog=mill features.ui" exited with error: 1
> Shutting down and cleaning up LinuxCNC...
> task: 1377 cycles, min=0.18, max=0.012521, avg=0.001059, 2 latency
> excursions (> 10x expected cycle time of 0.001000s)
> Note: Using POSIX non-realtime
> LinuxCNC terminated with an error.  You can find more information in the
> log:
> /home/gene/linuxcnc_debug.txt
> and
> /home/gene/linuxcnc_print.txt
> as well as in the output of the shell command 'dmesg' and in the terminal
>
> >From that, can anyone tell me where I might have a typu?  I have gone
> back a second time, finding 2 spelling errors the 2nd time.  But not a
> third time.  Partial problem is that the README.md file appears to be
> stripped from an html encoded file as some surviving evidence of html in
> it.
>
> Does Nick have a web page where I might be able to read it first hand?
> Never mind, I'll google.
>
> It does appear to run ok if ./features.py --catalog=mill is exec'd.  So
> the error is someplace in my "wiring" :)
>
> Thanks everybody.
>
> Cheers, Gene Heskett
> --
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> Genes Web page 
>
>
> --
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Re: [Emc-users] Resetting rotary movement count

[Sarah Armstrong]

or
999,999,999,999,999,967,336,168,804,116,691,273,849,533,185,806,555,472,917,961,779,471,295,845,921,727,862,608,739,868,455,469,056.00

On 5 January 2016 at 13:03, Dewey Garrett  wrote:

> >I had problems in this area, I think it is not a feature but a bug
> >that an rotary axis cannot be set to 0 or be infinite in its
>
> If [AXIS_n]MAX_LIMIT is missing, the value used is 1e99
>
>
> http://git.linuxcnc.org/gitweb?p=linuxcnc.git;a=blob;f=src/emc/ini/iniaxis.cc;h=ee0a6d6a2ed4cb0440418b063287475484d6f5ab;hb=refs/heads/2.7
>
> src/emc/ini/iniaxis.cc
>  163 // set max position limit
>  164 limit = 1e99;   // default
>  165 axisIniFile->Find(, "MAX_LIMIT", axisString);
>  166
>  167 if (0 != emcAxisSetMaxPositionLimit(axis, limit)) {
>  168 if (emc_debug & EMC_DEBUG_CONFIG) {
>  169 rcs_print_error("bad return from
> emcAxisSetMaxPositionLimit\n");
>  170 }
>  171 return -1;
>  172 }
> --
> Dewey Garrett
>
>
>
> --
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Re: [Emc-users] Spindle control

[Sarah Armstrong]

arh ,
if i'm reading correctly , you wish to use an external output form your vfd
to trigger ? , hence an input pin

the spindle at speed signal is internally generated within linuxcnc , using
the spindle rpm encoder
so therfore does not need an input from the vfd directly to use . so long
as your spindle speed rpm is correct or within bounds of a few rpm
it will work fine ,




On 29 December 2015 at 15:11, Sarah Armstrong <sarahj.armstron...@gmail.com>
wrote:

> you can use stepconf to produce a configuration ,
> you usually see a
> sets spindle-at-speed true , this overides the spindle at speed
> it may be in your postgui.hal file .
> comment it out and you should be ok
>
>
>
>
>
>
> On 29 December 2015 at 14:59, lloyd wilson <llwilso...@rochester.rr.com>
> wrote:
>
>> I'm trying to add a pyvcp panel to control a spindle vfd. To take
>> advantage of the 'at-speed' signal from the vfd to inhibit motion until
>> ready, the motion component of LCNC needs to be aware of the spindle
>> command state- from the documentation:
>>
>> *motion.spindle-at-speed* IN BIT
>>
>> Motion will pause until this pin is TRUE, under the following
>> conditions: before the first feed move after each spindle start or speed
>> change; before the start of every chain of spindle-synchronized moves;
>> and if in CSS mode, at every rapid->feed transition.
>>
>> but I can't find a reference to HAL input pins for spindle control in
>> the motion control component documentation. Is that communication done
>> by other methods (NML??- gasp!).
>>
>> Can someone point me to a sample configuration that properly integrates
>> an 'at-speed' signal into LCNC?
>>
>> Thanks in advance
>>
>> -ldw
>>
>> --
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>>
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Re: [Emc-users] Spindle control

[Sarah Armstrong]

you can use stepconf to produce a configuration ,
you usually see a
sets spindle-at-speed true , this overides the spindle at speed
it may be in your postgui.hal file .
comment it out and you should be ok






On 29 December 2015 at 14:59, lloyd wilson 
wrote:

> I'm trying to add a pyvcp panel to control a spindle vfd. To take
> advantage of the 'at-speed' signal from the vfd to inhibit motion until
> ready, the motion component of LCNC needs to be aware of the spindle
> command state- from the documentation:
>
> *motion.spindle-at-speed* IN BIT
>
> Motion will pause until this pin is TRUE, under the following
> conditions: before the first feed move after each spindle start or speed
> change; before the start of every chain of spindle-synchronized moves;
> and if in CSS mode, at every rapid->feed transition.
>
> but I can't find a reference to HAL input pins for spindle control in
> the motion control component documentation. Is that communication done
> by other methods (NML??- gasp!).
>
> Can someone point me to a sample configuration that properly integrates
> an 'at-speed' signal into LCNC?
>
> Thanks in advance
>
> -ldw
>
> --
> ___
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Re: [Emc-users] OT: Anyone have a small piece of 15/64" drill rod?

[Sarah Armstrong]

m-machine-metals.co.uk
will have it ,
we all ways take silver steel as Drill rod here in the UK .

and probably has the largest collection of silversteel in 64's in the uk

they can supply anything from plastics to ferrous , and 9 times out of 10
will have it in stock or
will order it for you if not , and quantity is not a problem if you want 4"
then thats what you'll get

ok thats a plug for Dorreen , so what LOL
any probs let me know .







On 21 December 2015 at 10:00, andy pugh  wrote:

> On 20 December 2015 at 23:19, Gregg Eshelman  wrote:
> > I need a small chunk of 15/64" drill rod, about 4 to 6" long. Nobody
> > within 100 miles stocks drill rod, or not in "oddball" 64th sizes
>
> Have you found any anywhere? I always assume that "Drill rod" is the
> same thing as "silver steel", but that only comes in whole mm or n/32"
> sizes.
> https://www.cromwell.co.uk/publication_page_pdfs/2245/804.pdf
>
> Maybe a job for a lathe?
>
> --
> atp
> If you can't fix it, you don't own it.
> http://www.ifixit.com/Manifesto
>
>
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Re: [Emc-users] OT: Anyone have a small piece of 15/64" drill rod?

[Sarah Armstrong]

theirs one thing Andy , if you called , you'd never leave ! LOL
theirs always a cuppa on hand too

dont take any notice of the stock list , it's always wrong , theirs More !!
(arh !  yes the borer the reminants of having to work with Steam !! ) and
still do .




On 21 December 2015 at 10:47, andy pugh <bodge...@gmail.com> wrote:

> On 21 December 2015 at 10:11, Sarah Armstrong
> <sarahj.armstron...@gmail.com> wrote:
> > m-machine-metals.co.uk
>
> After fossicking about in their web site, it turns out that they have
> a horizontal boring machine, just like the one my dad has.
>
> (Kearns S-type with the facing chuck)
>
> --
> atp
> If you can't fix it, you don't own it.
> http://www.ifixit.com/Manifesto
>
>
> --
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Re: [Emc-users] Practical Probing Routines

[Sarah Armstrong]

it looks as if it's the same package you have looked at . done by the guys
over on the russian site
theirs some probe stuff in the ngc folder .

i have some too that might help , i'll dig them and emails shortly all
being well

On 14 December 2015 at 12:32, John Thornton  wrote:

> Crumb, I hit delete on your reply and it does not show up in the trash
> folder... which probe screen are you talking about?
>
> JT
>
> On 12/14/2015 6:02 AM, John Thornton wrote:
> > With a probe on the way and after viewing a few probe screens which seem
> > to all be way to complicated for the job it made me wonder what
> > practical probing routines people would actually use on a mill to
> > machine parts with. I came up with a few but having never probed a part
> > I'm looking for input from those that have probes now.
> >
> > Measuring a part.
> >   Measure a hole.
> >   Measure a pocket.
> >
> > Re-Machining
> >   Locate a hole.
> >
> > Setup
> >   Find the top of material.
> >   Check that the vise is square.
> >   Center the probe stylus.
> >
> > JT
> >
> >
> --
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>
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Re: [Emc-users] Practical Probing Routines

[Sarah Armstrong]

send cradeks probe stuff , not seen them they may be better


On 14 December 2015 at 13:03, John Thornton <j...@gnipsel.com> wrote:

> Just looking at the probe routines in the samples and I find a couple of
> surface mapping routines and a subroutine probe-hole.ngc with no
> comments so not sure what it does. Tom just shared Cradek's probe
> routines so I'll look at them for a bit.
>
> JT
>
> On 12/14/2015 6:41 AM, Sarah Armstrong wrote:
> > it looks as if it's the same package you have looked at . done by the
> guys
> > over on the russian site
> > theirs some probe stuff in the ngc folder .
> >
> > i have some too that might help , i'll dig them and emails shortly all
> > being well
> >
> > On 14 December 2015 at 12:32, John Thornton <j...@gnipsel.com> wrote:
> >
> >> Crumb, I hit delete on your reply and it does not show up in the trash
> >> folder... which probe screen are you talking about?
> >>
> >> JT
> >>
> >> On 12/14/2015 6:02 AM, John Thornton wrote:
> >>> With a probe on the way and after viewing a few probe screens which
> seem
> >>> to all be way to complicated for the job it made me wonder what
> >>> practical probing routines people would actually use on a mill to
> >>> machine parts with. I came up with a few but having never probed a part
> >>> I'm looking for input from those that have probes now.
> >>>
> >>> Measuring a part.
> >>>Measure a hole.
> >>>Measure a pocket.
> >>>
> >>> Re-Machining
> >>>Locate a hole.
> >>>
> >>> Setup
> >>>Find the top of material.
> >>>Check that the vise is square.
> >>>Center the probe stylus.
> >>>
> >>> JT
> >>>
> >>>
> >>
> --
> >>> ___
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> >>> Emc-users@lists.sourceforge.net
> >>> https://lists.sourceforge.net/lists/listinfo/emc-users
> >>
> >>
> >>
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> >
> >
>
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Re: [Emc-users] Z axis stepper gradually losing position

[Sarah Armstrong]

if the error is small , it may be the actual distance of a single step or
less being 1.8 deg , and due to the ballscrew it does not allow the the
measurement you want
see if the step size equals the error , or less .

changing the steps if your using a microstep driver , will sort it


On 11 December 2015 at 20:19, Viesturs Lācis 
wrote:

> Hello!
>
> This is more like a hope that somebody (especially any fellow
> jewelers) might share their experience, where to look for source of
> problem. Please feel free to suggest whatever possible ideas that I
> already have not tried out. I will try to provide as detailed
> description as I can (sorry, if it ends up too long and boring to read
> all the way through).
>
> The machine is relatively small bench-top mill, used by jewelry maker
> to mill wax models to be used in lost-wax casting process. That is a
> 4-axis machine with rotary head (I do not have particular data of what
> motors and stepper drivers are used there). Original controls come
> with mach3. I only tested with my replacement control pc with Mesa
> 5i25 and LinuxCNC 2.6.8
>
> The problem is this: when milling out a ring, the tool passes back and
> forth on X axis (parallel to center-line of rotary axis) and changes Z
> height during those passes to create the profile of the ring. Between
> the passes there are small indexing moves of A axis to make for 0,02
> mm stepover from previous pass. The ring is about 23 mm diameter, so
> it takes something around 6000+ passes to complete whole circle. The
> problem is that the Z position in the last pass is approximately 0,5
> mm lower than in the first.
> Here is a picture that shows the issue (as they say something about
> one picture being better than 10^3 words):
> http://picpaste.com/IMG_8289-lyaSJDQI.JPG
>
> Things that have been tried:
> 1) looked at the code and Z heights match (at least to +/- 0,01 mm,
> which could not be observed to human eye), so it is not direct issue
> with the code;
> 2) checked for any hardware issue: loose clutch on motor shaft, any
> slop in linear bearings;
> 3) swapped the stepper drivers and motors
> 4) I reorganized the wires on the machine to move any motor power
> wires as far from incoming step/dir signal lines as possible
>
> The end result from these actions - no improvement at all. Client says
> there are total at least 4 attempts of milling the ring, no
> improvement has been observed.
>
> There are 2 things that have affected the result that do not make any
> sense to me and I would also appreciate any hints for these:
> 1) we made "test code" - the same 3d model was used, but code was
> generated with 0,2 mm stepover (instead of 0,02) to make for shorter
> run time - the result: _no problem_ at all; IMHO this excludes any
> effect from actual cutting forces as there was 10x more material to
> remove; I would have expected 10x smaller error (still easily
> observable, compared to overall surface finish roughness), but it was
> all equally smooth;
>
> 2) the same original code was executed on a smaller workpiece (tool
> was touched off closer to centerline of rotary axis, actual diameter
> reduced from ~23 mm to ~14 mm); the position drift was smaller (client
> says 0,3 mm instead of 0,5 mm). IMHO reducing the actual diameter
> decreases actual stepover distance and distorts overall proportions of
> the part produced, but it should have _zero_ effect on Z axis
> positioning precision.
>
> Thanks in advance for any [almost] meaningful ideas!
>
> Viesturs
>
>
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Re: [Emc-users] Lathe spindle encoder drive

[Sarah Armstrong]

interesting Andy
if we can hob one !

On 7 December 2015 at 16:17, andy pugh <bodge...@gmail.com> wrote:

> On 7 December 2015 at 15:54, Sarah Armstrong
> <sarahj.armstron...@gmail.com> wrote:
> > how did your cad turn out
>
>
>
> https://picasaweb.google.com/lh/photo/jQREjwevQMPSQyyJspt0wtMTjNZETYmyPJy0liipFm0?feat=directlink
>
> --
> atp
> If you can't fix it, you don't own it.
> http://www.ifixit.com/Manifesto
>
>
> --
> Go from Idea to Many App Stores Faster with Intel(R) XDK
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Re: [Emc-users] Lathe spindle encoder drive

[Sarah Armstrong]

this is on my todo list for my lathe too
how did your cad turn out , interesting too



On 7 December 2015 at 15:46, andy pugh  wrote:

> I have a lathe with a moderately large spindle. I want to drive an
> encoder (well, actually, a resolver) at a 1:1 ratio from this.
>
> The obvious way is with a 1:1 gear set, or a belt, but that does
> involve really quite a large gear on the weeny resolver shaft.
>
> I have been thinking about a 200:1 worm drive for an auxilairy
> resolver for absolute Z-axis positon feedback (I want to eliminate Z
> homing moves) and it occurred to me to wonder if a 1:1 ratio worm
> drive is possible, with the wheel much smaller than the worm.
>
> So, I modelled a 10-start worm and a 10-tooth wheel in CAD, and it
> wasn't long before I realised that I was designing something that I
> have seen before. A speedometer drive.
>
> http://www.ebay.co.uk/itm/251440255353
>
> Now to find one with the right ratio and bore size.
>
> --
> atp
> If you can't fix it, you don't own it.
> http://www.ifixit.com/Manifesto
>
>
> --
> Go from Idea to Many App Stores Faster with Intel(R) XDK
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Re: [Emc-users] Hardinge Conquest 42 Conversion

[Sarah Armstrong]

yes it can handle the turret toolchanger ,

theirs a number of ways using classic ladder , or using a comp


On 6 December 2015 at 20:46, Jeremy Jones  wrote:

> Thanks John. How would one handle the tool changing from a hardware and
> software standpoint since this a 10 tool ATC? Does LCNC support ATCs?
>
> On Thu, Nov 12, 2015 at 9:25 PM, Jon Elson  wrote:
>
> > On 11/12/2015 05:47 PM, Jeremy Jones wrote:
> > > Thinking about picking up a Conquest 42. The machine is supposedly in
> > good
> > > shape but the Fanuc OT control might be shot and the motherboard would
> > need
> > > to replaced. Will try to resurrect but I'm thinking linuxcnc anyway
> > since I
> > > did a Bridgport recently.
> > >
> > > I've seen a lot of CHNC conversions but couldn't find any Conquests.
> > > Wondering if anyone has done one and if its similar to the CHNC's. I
> know
> > > the CHNC II has the same spindle but I unsure of the remaining
> > electronics.
> > > Just trying to get an idea of everything I would need to replace to
> make
> > it
> > > work. It also has a 10 tool turret tool changer and I'm wondering how
> > hard
> > > that would be to get to work with LCNC. Any help is appreciated.
> > >
> > It may have resolvers instead of encoders on the axes.  I
> > (Pico Systems) have a converter that converts the resolvers
> > to look like standard encoders.  Several CHNCs have been
> > converted with my Universal PWM Controller and PWM servo amps.
> >
> > Jon
> >
> >
> >
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Re: [Emc-users] Hardinge Conquest 42 Conversion

[Sarah Armstrong]

http://gnipsel.com/shop/hardinge/hardinge.xhtml

sorry forgot the link , that will get you close

On 6 December 2015 at 20:51, Sarah Armstrong <sarahj.armstron...@gmail.com>
wrote:

> yes it can handle the turret toolchanger ,
>
> theirs a number of ways using classic ladder , or using a comp
>
>
> On 6 December 2015 at 20:46, Jeremy Jones <sp01jjo...@gmail.com> wrote:
>
>> Thanks John. How would one handle the tool changing from a hardware and
>> software standpoint since this a 10 tool ATC? Does LCNC support ATCs?
>>
>> On Thu, Nov 12, 2015 at 9:25 PM, Jon Elson <el...@pico-systems.com>
>> wrote:
>>
>> > On 11/12/2015 05:47 PM, Jeremy Jones wrote:
>> > > Thinking about picking up a Conquest 42. The machine is supposedly in
>> > good
>> > > shape but the Fanuc OT control might be shot and the motherboard would
>> > need
>> > > to replaced. Will try to resurrect but I'm thinking linuxcnc anyway
>> > since I
>> > > did a Bridgport recently.
>> > >
>> > > I've seen a lot of CHNC conversions but couldn't find any Conquests.
>> > > Wondering if anyone has done one and if its similar to the CHNC's. I
>> know
>> > > the CHNC II has the same spindle but I unsure of the remaining
>> > electronics.
>> > > Just trying to get an idea of everything I would need to replace to
>> make
>> > it
>> > > work. It also has a 10 tool turret tool changer and I'm wondering how
>> > hard
>> > > that would be to get to work with LCNC. Any help is appreciated.
>> > >
>> > It may have resolvers instead of encoders on the axes.  I
>> > (Pico Systems) have a converter that converts the resolvers
>> > to look like standard encoders.  Several CHNCs have been
>> > converted with my Universal PWM Controller and PWM servo amps.
>> >
>> > Jon
>> >
>> >
>> >
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>> > https://lists.sourceforge.net/lists/listinfo/emc-users
>> >
>>
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