Re: [Emc-users] Keyboard options in 2.7.0.?

[John Thornton]

You don't type in the $ only xev and it works on Debian Wheezy.

JT

On 9/12/2015 6:41 AM, Martin Smith wrote:
> Thanks for your advice.
>
> When I tried $ xev in terminal I got command not found.
> I will ask a freind to guide me in terminal to follow  your advice.
>
> Martin
> -Ursprungligt meddelande-
> Från: Erik Christiansen [mailto:dva...@internode.on.net]
> Skickat: den 11 september 2015 11:39
> Till: emc-users@lists.sourceforge.net
> Ämne: Re: [Emc-users] Keyboard options in 2.7.0.?
>
> On 10.09.15 23:35, Martin Smith wrote:
>> I have  a Swedish keyboard installed. In 2.5.4 (Ubuntu) there is
>> Setting, Keyboard, Layout and Options where you can change key
>> behavior. In my case I could change comma (,) to dot (.) in the numeric 
>> keypad.
>> I would like to do the same change In 2.7.0 (Wheezy). It´s
>> inconvinient not having dot in the numeric keypad when running LCNC.
> Having not yet found fully documenting manpages for GUI stuff, I can only 
> advise on a more fundamental approach. Here, starting:
>
> $ xev
>
> then pressing '.' in the numeric keypad (yours will be labelled ','),
> gives:
>
> KeyPress event, serial 38, synthetic NO, window 0x301,
>  root 0x132, subw 0x0, time 585013, (142,317), root:(154,452),
>  state 0x0, keycode 91 (keysym 0xff9f, KP_Delete), same_screen YES,
>  XLookupString gives 0 bytes:
>  XmbLookupString gives 0 bytes:
>  XFilterEvent returns: False
>
> amongst its somewhat verbose output. (Look for "KeyPress event") Now we know 
> that the key is "keycode 91". In contrast, pressing the main keyboard '.' 
> gives:
>
> KeyPress event, serial 35, synthetic NO, window 0x301,
>  root 0x132, subw 0x0, time 1088960, (262,429), root:(274,564),
>  state 0x0, keycode 60 (keysym 0x2e, period), same_screen YES,
>  XLookupString gives 1 bytes: (2e) "."
>  XmbLookupString gives 1 bytes: (2e) "."
>  XFilterEvent returns: False
>
> revealing that its keysym is 0x2e, so your desired mapping is nothing more 
> than:
>
> $ xmodmap -e 'keycode 91 = 0x2e'
>
> To confirm the process here, where the numeric pad already generates a 
> period, I configured the reverse conversion:
>
> $ xmodmap -e 'keycode 91 = 0x2c'
>
> with the result that repeatedly whacking the numeric '.' key now emits:
>
> $ ,
>
> OK, how to automate that? The quickest is just to copy the xmodmap line to 
> your ~/.bashrc or ~/.profile. Or, if preferred, just the text inside the 
> quotes can be added to ~/.Xmodmap, instead, if that seems simpler.
> If, however, there are other times when you run Swedish applications, 
> requiring a decimal comma, then it might be more convenient to place the 
> xmodmap line in a wrapper shell function (or simple alias) around the command 
> you use to start LinuxCNC.
>
> What could give you more control than that?
>
> Erik
>
> --
> The meta-problem here is that the configuration wizard does all the approved 
> rituals (GUI with standardized clicky buttons, help popping up in a browser, 
> etc. etc.) but doesn't have the central attribute these are supposed to 
> achieve:
> discoverability. That is, the quality that every point in the interface has 
> prompts and actions attached to it from which you can learn what to do next.
> - Eric Raymond, in "The Luxury of 
> Ignorance."
>
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Re: [Emc-users] 2.7.0 Docs

[John Thornton]

Hi Gene,

Without the name of the document and the version the page numbers don't 
help me...

JT

On 9/12/2015 2:31 PM, Gene Heskett wrote:
> On Saturday 12 September 2015 14:44:09 Gene Heskett wrote:
>
>> Greetings to whomever is in charge of editing and assembling the new
>> 2.7.0-something or other LinuxCNC Documentation pdf.
>>
>> I am reading onscreen while my printer is slowly consuming paper, and
>> finding that all sorts of little niggly tidbits have been fixed, like
>> the item in the ini file that sets the spindles starting speed for a
>> click on a direction button.
>>
>> So my hat is waved wildly in your direction in thanks.  And if you
>> ever get to my place, I'm sure I can find a cold one for a steaming
>> hand.
>>
>> Many thanks, this is IMNSHO, a lot better than the previous 2.5
>> version I've been scribbling notes in for 2 or 3 years.  It should
>> have been combined, reducing the duplication of effort, and now it
>> seems to be.
>>
>> Cheers, Gene Heskett
> But I may have spoken too soon. some of the graphics images are rendered
> solid black, on pages:
> 103
> 272
> 478
> 502
> 504
> 656
> 658
>
> Whether that is an image format that kpdf doesn't understand, its black
> on screen as well as on paper, or they were actually defective is unk to
> me, but I thought you might care. :)
>
> It is still a heck of an improvement, thanks to all who had a hand in it.
>
> Cheers, Gene Heskett


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Re: [Emc-users] Knurling with a threading tool using spindle coordinated motion (G33) on EMCOTurn 120P CNC lathe

[John Thornton]

That's pretty slick, I'll add this to my ngcgui routines for sure. 
Thanks for sharing the code.

JT

On 9/11/2015 6:52 PM, Tom Easterday wrote:
> Here is a video of our G33 knurling routine running.  Pretty cool.  I’m sure 
> we aren’t the first to do this, but since I haven’t seen it before I will 
> pretend like it :-)  BTW, this knurl is only about 5 thou deep, deeper ones 
> will follow.
>
> https://youtu.be/zdCQ0X7b2uo
>
> Here is the code:
>
> G8
> G53 G0 X0
> G53 G0 Z0
> M6 T3 G43
>
> # = 0.700
> # = [#/2]
> # = 0.025
> # = [# + #]
>
> # = 0.000
> # = 0.25
> # = 0.010
> # = 0.002
> # = 28
> # = 30
> # = [# - #]
>
> # = 100
>
> # = 3.142
>
> ; The surface is the circumference of the workpiece
> # = [# * #]
>
> ; Given a knurl angle, calculate Z feed given 
> # = [TAN[#] * #]
> # = [# * #]
> (debug, feed per revolution: #; per min: #)
>
> ; thread _width_ is equal to distance traveled in one rev, i.e. 
> # = #
> ; Thus, TPI will be 1/
> # = [1/#]
>
> ; To do a n-start thread, we need to start each thread
> ; /n further back (Z+) than the prior thread
> # = [#/#]
>
>
> M3 S#
>
> #100 = #
> #110 = [[# * #] + # + #]
> (debug, knurl lead in: #110)
>
> G0 Z#110
> G0 X[# - #]
>
> O100 WHILE [#100 GT 0]
> (debug, start Z: #110; feed: #)
> (calculate the lead in for the knurl AFTER this one)
> #105 = #110
> #110 = [#110 - #]
>
> ;G33 Z#110 K#
> ;G1 Z# F#
> ;G1 Z#105 F#
> G33 Z# K#
> G33 Z#105 K#
> ;G0 X#
> G0 Z#110
> ;G0 X[# - #]
>
> #100 = [#100 - 1]
> O100 ENDWHILE
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Re: [Emc-users] 2.7.0 Docs

[Gene Heskett]

On Sunday 13 September 2015 06:20:21 John Thornton wrote:

> Hi Gene,
>
> Without the name of the document and the version the page numbers
> don't help me...
>
> JT

Filename: LinuxCNC_Documentation.pdf

Cover page has "LinuxCNC V2.7.0-10-g99e6865, 2015-09-09" in large print, 
centered on the front page.

I've edited to show the image titles below.

Thank you John.

> On 9/12/2015 2:31 PM, Gene Heskett wrote:
> > On Saturday 12 September 2015 14:44:09 Gene Heskett wrote:
> >> Greetings to whomever is in charge of editing and assembling the
> >> new 2.7.0-something or other LinuxCNC Documentation pdf.
> >>
> >> I am reading onscreen while my printer is slowly consuming paper,
> >> and finding that all sorts of little niggly tidbits have been
> >> fixed, like the item in the ini file that sets the spindles
> >> starting speed for a click on a direction button.
> >>
> >> So my hat is waved wildly in your direction in thanks.  And if you
> >> ever get to my place, I'm sure I can find a cold one for a steaming
> >> hand.
> >>
> >> Many thanks, this is IMNSHO, a lot better than the previous 2.5
> >> version I've been scribbling notes in for 2 or 3 years.  It should
> >> have been combined, reducing the duplication of effort, and now it
> >> seems to be.
> >>
> >> Cheers, Gene Heskett
> >
> > But I may have spoken too soon. some of the graphics images are
> > rendered solid black, on pages:
103 section 2.1.10 "lathe tool shape"
272 section 3.9.4.19 "roughing pass and finish pass"
478 Parport block diagram
502 figure 9.3 pluto servo pinout
504 figure 9.4 pluto step pinout
656 figure 12.22 encoder counter block diagram
658 figure 12.23 PID loop block diagram
> >
> > Whether that is an image format that kpdf doesn't understand, its
> > black on screen as well as on paper, or they were actually defective
> > is unk to me, but I thought you might care. :)
> >
> > It is still a heck of an improvement, thanks to all who had a hand
> > in it.
> >
> > Cheers, Gene Heskett
>
> --
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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] Keyboard options in 2.7.0.?

[Erik Christiansen]

On 13.09.15 05:22, John Thornton wrote:
> You don't type in the $ only xev and it works on Debian Wheezy.

Hell's bells ... old common knowledge has clearly become just old.
One of the first things learnt about the unix command line in the old
days, is that it has pretty much since the beginning been the most
common default for an ordinary user's prompt to be '$', while the root
prompt is '#'.¹ On all technical lists that I've encountered, it is the
habit to include the command line prompt as shorthand confirmation that
that is where the command is to be entered.

Strike me pink, next we'll be calling directories "folders"!

¹ Of course, the prompt may be changed at will. These days, mine is:

  erik@ratatosk:~$

  showing who I am currently, which host I'm on, and which directory I'm
  in. I.e.:

  $ su
  Password: 
  root@ratatosk:/home/erik#

Erik
(Who's just grateful we still have mailing lists, and are not forced to
use that Twitterface thing.)

-- 
Q: How does a Unix Guru do Sex ?
A: unzip;strip;touch;finger;mount;fsck;more;yes;umount;sleep

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Re: [Emc-users] A curious correlation

[Jon Elson]

On 09/13/2015 09:44 AM, andy pugh wrote:
> Why are so many LinuxCNC users called John Doe? I suspect that they
> are registering pseudonymously.
>
Hmmm?  Where do you see these John Does?  I haven't seen any 
of them in the several LinuxCNC-related places I haunt.

Jon

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Re: [Emc-users] Knurling with a threading tool using spindle coordinated motion (G33) on EMCOTurn 120P CNC lathe

[Stephen Dubovsky]

The GS2 is a simple V/Hz control which is open loop.  208V @ 60Hz = 1800rpm
simply scales 1/18 to 11.5V @ 3.3Hz = 100rpm.  Nonlinearities will often
cause problems at very low speeds in an open loop system. (Note: the GS2
might have some functions to boost the voltage at low speeds and such to
help negate some of that.  Read your manual to see if it can be programmed
better.)

A higher end VFD (like a Hitachi 200/300/700) that can do sensorless vector
control measures the current waveform shape and phase angle to try and
accurately estimate rotor position(or speed).  They have to be tuned though
(just like linuxcnc feedback.)  They will often have an 'autotune'
feature.  When enabled, it will go through a cycle of spinning the motor
up/down and through a couple direction reversals to measure the motor
parameters it needs.  I think the Hitachi 700 even has a encoder/tach
option where it can close the loop exactly for almost servo like
performance.

On Sun, Sep 13, 2015 at 10:40 AM, Drew Rogge  wrote:

> Hi Tom,
>
> What spindle motor are you using that can reliably get down to 100 RPM? MY
> 3phase with a GS2 VFD and barely handle 400 RPM.
>
> Thanks,
> Drew
>
>
> On 9/12/15 8:39 AM, Tom Easterday wrote:
> > On Sep 12, 2015, at 10:51 AM, Gene Heskett  wrote:
> >> I see that video, very impressive.  But what sort of a threading tool
> can
> >> be driven at that high a side angle?  None of the inserts I have, have
> >> that sort of high angle side clearances.
> > It is one of these, reversed in the turret (turning M3) with a 16ER A60
> insert:  http://www.shars.com/catalogsearch/result/?q=404-1979
> > -Tom
> >
> --
> > ___
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> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
> --
> Drew Rogge
> d...@dasrogges.com
>
> Phone: 8934OOO629OO4829631OOO
>
>
>
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Re: [Emc-users] 2.7.0 Docs

[John Thornton]

Thanks, in the standard PDF viewer that comes with Debian Wheezy they 
show up fine. All the images used are .png type. I don't have kpdf and 
it does not show up in the package manager so I can't test it.

JT

On 9/13/2015 8:19 AM, Gene Heskett wrote:
> On Sunday 13 September 2015 06:20:21 John Thornton wrote:
>
>> Hi Gene,
>>
>> Without the name of the document and the version the page numbers
>> don't help me...
>>
>> JT
> Filename: LinuxCNC_Documentation.pdf
>
> Cover page has "LinuxCNC V2.7.0-10-g99e6865, 2015-09-09" in large print,
> centered on the front page.
>
> I've edited to show the image titles below.
>
> Thank you John.
>
>> On 9/12/2015 2:31 PM, Gene Heskett wrote:
>>> On Saturday 12 September 2015 14:44:09 Gene Heskett wrote:
 Greetings to whomever is in charge of editing and assembling the
 new 2.7.0-something or other LinuxCNC Documentation pdf.

 I am reading onscreen while my printer is slowly consuming paper,
 and finding that all sorts of little niggly tidbits have been
 fixed, like the item in the ini file that sets the spindles
 starting speed for a click on a direction button.

 So my hat is waved wildly in your direction in thanks.  And if you
 ever get to my place, I'm sure I can find a cold one for a steaming
 hand.

 Many thanks, this is IMNSHO, a lot better than the previous 2.5
 version I've been scribbling notes in for 2 or 3 years.  It should
 have been combined, reducing the duplication of effort, and now it
 seems to be.

 Cheers, Gene Heskett
>>> But I may have spoken too soon. some of the graphics images are
>>> rendered solid black, on pages:
> 103 section 2.1.10 "lathe tool shape"
> 272 section 3.9.4.19 "roughing pass and finish pass"
> 478 Parport block diagram
> 502 figure 9.3 pluto servo pinout
> 504 figure 9.4 pluto step pinout
> 656 figure 12.22 encoder counter block diagram
> 658 figure 12.23 PID loop block diagram
>>> Whether that is an image format that kpdf doesn't understand, its
>>> black on screen as well as on paper, or they were actually defective
>>> is unk to me, but I thought you might care. :)
>>>
>>> It is still a heck of an improvement, thanks to all who had a hand
>>> in it.
>>>
>>> Cheers, Gene Heskett
>> --
>>  ___
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>
> Cheers, Gene Heskett


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[Emc-users] A curious correlation

[andy pugh]

Why are so many LinuxCNC users called John Doe? I suspect that they
are registering pseudonymously.

-- 
atp
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http://www.ifixit.com/Manifesto

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Re: [Emc-users] Knurling with a threading tool using spindle coordinated motion (G33) on EMCOTurn 120P CNC lathe

[Drew Rogge]

Hi Tom,

What spindle motor are you using that can reliably get down to 100 RPM? MY 
3phase with a GS2 VFD and barely handle 400 RPM.

Thanks,
Drew


On 9/12/15 8:39 AM, Tom Easterday wrote:
> On Sep 12, 2015, at 10:51 AM, Gene Heskett  wrote:
>> I see that video, very impressive.  But what sort of a threading tool can
>> be driven at that high a side angle?  None of the inserts I have, have
>> that sort of high angle side clearances.
> It is one of these, reversed in the turret (turning M3) with a 16ER A60 
> insert:  http://www.shars.com/catalogsearch/result/?q=404-1979
> -Tom
> --
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-- 
Drew Rogge
d...@dasrogges.com

Phone: 8934OOO629OO4829631OOO


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Re: [Emc-users] Knurling with a threading tool using spindle coordinated motion (G33) on EMCOTurn 120P CNC lathe

[Tom Easterday]

Hi Drew,
The motor is a 3-phase Black Max 3HP inverter duty motor (Marathon Electric 
brand bought through Automation Direct).  When I first installed it and used 
the basic settings on the VFD I could not run below about 300rpm or the current 
would spike and the VFD would trigger a shut down.  After talking to A.D. tech 
support I configured it for a custom Volts/Hz curve (setting 2.00).  I then had 
to change the various associated parameters (min output frequency, mid-point 
freq, etc).  This allows the motor to spin down to about 50rpm surprisingly 
reliably but with much lower torque than at higher speeds.  The lower torque is 
apparent if I try to stop the spindle with my hand at these low speeds - I can 
come close.  It is just a compromise, we take light cuts at 200rpm and below 
and things are fine.  I have been doing rigid tapping at 200rpm which can put a 
bit of a load on the spindle and I haven’t had a problem so for the time being 
we will stick to the GS2 VFD.

A.D. has pointed out to me several times that ideally if we need low speed 
torque and control we should be using a vector drive VFD.   We might upgrade to 
a vector VFD at some point, or not, depending on if this becomes an issue for 
us.  Even that isn’t a panacea though, ideally for complete control we’d use a 
servo motor for the spindle but that isn’t going to happen.   If you care about 
why a vector drive helps this a good basic explanation of the difference that I 
found with a quick “google":  http://www.eng-tips.com/faqs.cfm?fid=1062

BTW,If you are interested in the specific settings I used on the GS2 I can look 
on the VFD and send them along.
-Tom


> On Sep 13, 2015, at 10:40 AM, Drew Rogge  wrote:
> 
> Hi Tom,
> 
> What spindle motor are you using that can reliably get down to 100 RPM? MY 
> 3phase with a GS2 VFD and barely handle 400 RPM.
> 
> Thanks,
> Drew
> 
> 
> On 9/12/15 8:39 AM, Tom Easterday wrote:
>> On Sep 12, 2015, at 10:51 AM, Gene Heskett  wrote:
>>> I see that video, very impressive.  But what sort of a threading tool can
>>> be driven at that high a side angle?  None of the inserts I have, have
>>> that sort of high angle side clearances.
>> It is one of these, reversed in the turret (turning M3) with a 16ER A60 
>> insert:  http://www.shars.com/catalogsearch/result/?q=404-1979
>> -Tom
>> --
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> 
> -- 
> Drew Rogge
> d...@dasrogges.com
> 
> Phone: 8934OOO629OO4829631OOO
> 
> 
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Re: [Emc-users] 2.7.0 Docs

[Jon Elson]

On 09/13/2015 08:59 AM, John Thornton wrote:
> Thanks, in the standard PDF viewer that comes with Debian Wheezy they
> show up fine. All the images used are .png type. I don't have kpdf and
> it does not show up in the package manager so I can't test it.
>
>
I'm using "document viewer" in Ubuntu 12.04, and the 
pictures work fine, here, also.

Jon

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[Emc-users] mailing list vs forum

[Tom Easterday]

It seems like the mailing list and forum are two completely different venues, 
or are they?  I see many of the same people in the forum as the mailing list 
but I see people in the forum not on the mailing list or perhaps they just 
don’t post there…  I assume this (at least apparent) disconnection is simply 
history - mailing list came first - forum more recently. Anyway, I am just 
raising the issue wondering if there is a way to link or cross reference them, 
or if there is some etiquette posting information on one and/or the other.  I 
am sometimes tempted to post information in both places but then I feel guilty 
wondering if I am duplicating info….

-Tom
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Re: [Emc-users] 2.7.0 Docs

[Gene Heskett]

On Sunday 13 September 2015 09:59:01 John Thornton wrote:

> Thanks, in the standard PDF viewer that comes with Debian Wheezy they
> show up fine. All the images used are .png type. I don't have kpdf and
> it does not show up in the package manager so I can't test it.
>
> JT
>
And that pdf viewer is called?  I show a couple others, but they seem to 
be for ebooks only. I just tried to open it with LibreOffice, but 15 
minutes later it was still stuck and non-responsive, so I went to the 
screen with htop running as root and had it do a kill -9 on it, my poor 
old quad core phenom was burning up.

Aha, okular, despite spitting out several screens full of errors on 
launch from a terminal, opens it AND displays it.  So now I know where 
to take this complaint.

So basically, anyone running the TDE version of kpdf, which is a fork of 
kde-3.5, should nuke it and use okular.

Many thanks John.


> On 9/13/2015 8:19 AM, Gene Heskett wrote:
> > On Sunday 13 September 2015 06:20:21 John Thornton wrote:
> >> Hi Gene,
> >>
> >> Without the name of the document and the version the page numbers
> >> don't help me...
> >>
> >> JT
> >
> > Filename: LinuxCNC_Documentation.pdf
> >
> > Cover page has "LinuxCNC V2.7.0-10-g99e6865, 2015-09-09" in large
> > print, centered on the front page.
> >
> > I've edited to show the image titles below.
> >
> > Thank you John.
> >
> >> On 9/12/2015 2:31 PM, Gene Heskett wrote:
> >>> On Saturday 12 September 2015 14:44:09 Gene Heskett wrote:
>  Greetings to whomever is in charge of editing and assembling the
>  new 2.7.0-something or other LinuxCNC Documentation pdf.
> 
>  I am reading onscreen while my printer is slowly consuming paper,
>  and finding that all sorts of little niggly tidbits have been
>  fixed, like the item in the ini file that sets the spindles
>  starting speed for a click on a direction button.
> 
>  So my hat is waved wildly in your direction in thanks.  And if
>  you ever get to my place, I'm sure I can find a cold one for a
>  steaming hand.
> 
>  Many thanks, this is IMNSHO, a lot better than the previous 2.5
>  version I've been scribbling notes in for 2 or 3 years.  It
>  should have been combined, reducing the duplication of effort,
>  and now it seems to be.
> 
>  Cheers, Gene Heskett
> >>>
> >>> But I may have spoken too soon. some of the graphics images are
> >>> rendered solid black, on pages:
> >
> > 103 section 2.1.10 "lathe tool shape"
> > 272 section 3.9.4.19 "roughing pass and finish pass"
> > 478 Parport block diagram
> > 502 figure 9.3 pluto servo pinout
> > 504 figure 9.4 pluto step pinout
> > 656 figure 12.22 encoder counter block diagram
> > 658 figure 12.23 PID loop block diagram
> >
> >>> Whether that is an image format that kpdf doesn't understand, its
> >>> black on screen as well as on paper, or they were actually
> >>> defective is unk to me, but I thought you might care. :)
> >>>
> >>> It is still a heck of an improvement, thanks to all who had a hand
> >>> in it.
> >>>
> >>> Cheers, Gene Heskett
> >>
> >> ---
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> >
> > Cheers, Gene Heskett
>
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Re: [Emc-users] 2.7.0 Docs

[Gene Heskett]

On Sunday 13 September 2015 12:08:29 Jon Elson wrote:

> On 09/13/2015 08:59 AM, John Thornton wrote:
> > Thanks, in the standard PDF viewer that comes with Debian Wheezy
> > they show up fine. All the images used are .png type. I don't have
> > kpdf and it does not show up in the package manager so I can't test
> > it.
>
> I'm using "document viewer" in Ubuntu 12.04, and the
> pictures work fine, here, also.
>
> Jon

If it has a heavily stylized lower case red 'e' for an icon, thats 
evince, running incognito.  And it also works.
>
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Re: [Emc-users] Knurling with a threading tool using spindle coordinated motion (G33) on EMCOTurn 120P CNC lathe

[Tom Easterday]

Cool, post it in the forum with your other routines when you do.  

Also I should point out that knurlPerDia is probably misnamed.  Might better be 
called knurlPerCircum or threadPerCircum.  Essentially, it is the number of 
threads cut across the circumference of the piece.  The number we use is (in 
this case anyway) the workpiece diameter * Pi * 12 rounded to nearest integer - 
but can change depending on what diameter workpiece you have and how big or 
small you want the knurls (the sort-of-TPI or thread per circumference TPC) on 
the piece.

-Tom


> On Sep 13, 2015, at 6:40 AM, John Thornton  wrote:
> 
> That's pretty slick, I'll add this to my ngcgui routines for sure. 
> Thanks for sharing the code.
> 
> JT


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Re: [Emc-users] mailing list vs forum

[John Thornton]

My 2 cents (which doesn't purchase much anymore).

The forum is frequented by people that like the look and feel of a 
forum. I also feel that newbies have an easier time navigating a forum 
especially if they come from a winblow environment, so you see more 
questions from them on the forum. The forum is pretty much without idle 
chatter so it is easier to follow a topic.

I used to dislike the mailing lists because my mail reader would not 
group them into topics so with all the bottom posting and multiple 
quotes it was difficult for me to read them without scrolling down a 
lot. Now that I figured out how to make the reader group topics it is a 
bit easier to read.

So my answer is there would be very little duplication of information if 
you posted something like the knurling subroutine on the wiki, the 
mailing list and the forum.

As for asking a question, I feel that the mailing list has more 
experienced people than the forum who are answering questions. So I 
usually post questions here and usually answer questions on the forum.

JT

On 9/13/2015 11:50 AM, Tom Easterday wrote:
> It seems like the mailing list and forum are two completely different venues, 
> or are they?  I see many of the same people in the forum as the mailing list 
> but I see people in the forum not on the mailing list or perhaps they just 
> don’t post there…  I assume this (at least apparent) disconnection is simply 
> history - mailing list came first - forum more recently. Anyway, I am just 
> raising the issue wondering if there is a way to link or cross reference 
> them, or if there is some etiquette posting information on one and/or the 
> other.  I am sometimes tempted to post information in both places but then I 
> feel guilty wondering if I am duplicating info….
>
> -Tom
> --
>


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Re: [Emc-users] Knurling with a threading tool using spindle coordinated motion (G33) on EMCOTurn 120P CNC lathe

[Tom Easterday]

If you swap out the knurlPerDia definition line with the following two lines, 
it will calculate the number of knurls to cut from workpieceDia:

# = 12
# = ROUND[[# * 3.14159 * #]]


> On Sep 13, 2015, at 1:06 PM, Tom Easterday  wrote:
> Also I should point out that knurlPerDia is probably misnamed.  Might better 
> be called knurlPerCircum or threadPerCircum.  Essentially, it is the number 
> of threads cut across the circumference of the piece.  The number we use is 
> (in this case anyway) the workpiece diameter * Pi * 12 rounded to nearest 
> integer - but can change depending on what diameter workpiece you have and 
> how big or small you want the knurls (the sort-of-TPI or thread per 
> circumference TPC) on the piece.


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Re: [Emc-users] mailing list vs forum

[Gene Heskett]

On Sunday 13 September 2015 12:50:20 Tom Easterday wrote:

> It seems like the mailing list and forum are two completely different
> venues, or are they?  I see many of the same people in the forum as
> the mailing list but I see people in the forum not on the mailing list
> or perhaps they just don’t post there…  I assume this (at least
> apparent) disconnection is simply history - mailing list came first -
> forum more recently. Anyway, I am just raising the issue wondering if
> there is a way to link or cross reference them, or if there is some
> etiquette posting information on one and/or the other.  I am sometimes
> tempted to post information in both places but then I feel guilty
> wondering if I am duplicating info….
>
> -Tom

Escapee's from the M$ world seem to think the forum is some sort of 
magic. Very easily impressed frogs IMO.  For me its a PIMA, as I can't 
remember where the heck it is, and did I ever register a I&^$% password, 
and if so, what the heck is it? At my age, I've got far better things to 
do with ny dwindling wet ram.

The mailing list comes to me 100% automatically, I read it, if I can 
answer a question I can with one click of the mouse on the proper reply 
style icon in the kmail toolbar, type my reply, and hit a ctl+return to 
send.  With the background scripts I have running, that is literally all 
I have to do.  Call me lazy, but a forum is a right pain in the arse in 
comparison.

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] mailing list vs forum

[Jack Coats]

I use both.  Forums occasionally, mainly when I am researching a specific
set of topics, but the mail list is
better day to day.

To use a mail list effectively, staying engaged, at least reading, is
important.  Kind of it's own 'soap opera' format with continuing multiple
thread stories going on.  Forum's can be dealt with like sitcoms that have
little if any story line carryover, very episodic in nature.

At least that is the way I think of them, which is very little  ...

Learning for a newbie in a new field, for me takes emersion. ... Reading
forums to let newbies follow a project or problem from stem to stern seems
to be a good way to help them.  But it does take the investment on their
part of time to read LOTS of forums threads to start to gain insight on
what it takes and the types of issues that arise. ... But for CNC in
general, it has a pretty steep learning curve for someone without related
experience, and reading a LOT (and asking questions, even if they are not
the most insightful) is what it takes.  It also takes patience from more
experienced members (some older, many not) to get the newbies up to speed
for what they need.

Yep, forums and mailing list are different animals, even if they serve the
same community.
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Re: [Emc-users] mailing list vs forum

[andy pugh]

On 13 September 2015 at 20:31, Jim Craig  wrote:
> I use both the forum and the mailing list.

So do I. But I personally prefer mailing lists.

The problem with a mailing list is that you automatically get sent everything.
The problem with the forum is that you don't automatically get shown
everything...

A forum is great if you want to ask a question and get an answer to
only your question, ignoring the rest.
It is much less great if you are attempting to ensure that you read
everything that is posted there.

A mailing list is great if you want to make sure that you are up to
date with everything that is going on, and don't want to miss
anything.
It is rather less great if you want to ask one question, get an
answer, and ignore the rest.

There has to be room for both, it would be impossible for me to keep
up with the mailing lists of all the projects that I occasionally
visit the forums of. At the same time I wouldn't fancy trying to keep
track of even one more forum than the one I do read (ours). I wonder
if anyone reads everything that goes to CNCzone?

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[Emc-users] Found the next weak link in the spindle drive train

[Gene Heskett]

Greetings all;

While snugging up the spindle bearings about 1/4 turn, and putting the 
finishing touches on a new, better fitting lock pin for the GO704 
spindle, the tool, trying to clean up the left face of a disk of steel 
left in the middle of the pin to serve as a place where a retraction 
spring could push against, the tool caught and bent about 3" of 
nominally 1/4" diameter steel sticking out of the chuck, roughly 1/2" at 
the unsupported end.  That then locked up the chuck, and the drive motor 
went to full throttle.

Now I have a 126XL timing belt with two ends!  Two things I learned.

A, that this belt is very short of its touted kevlar fibre, 5 strands of 
5 or 7 40 gauge fibers. I need about a 132XL anyway, but I'm truly DIW 
till I can get a new one, hopefully with more than just token kevlar in 
it.

B, don't try to take such a wide cut.

Does anyone have a recommended Merican supplier for such a critter?
Something with real kevlar in its back...  And who doesn't use the 
shipping as a bigger profit item than the belt itself?  I figure I'd 
better get a 5 pack if they are that easily broken.

Thanks everybody.

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] mailing list vs forum

[Bruce Layne]

On 09/13/2015 03:41 PM, andy pugh wrote:
> A forum is great if you want to ask a question and get an answer to
> only your question, ignoring the rest.

I think that's the answer to your original query concerning the number 
of John Doe LinuxCNC members.  "I just want an answer to my question.  I 
don't want to sign up for your newsletter.  I'm not a part of your 
community, but if your community can benefit me"

Maybe there should be a script to change all of the John Doe members to 
Joe Leech.  :-)

Sez the guy who has received a lot more help from this community than 
he's returned.  :-/

That reminds me... I've been having trouble installing 2.7  :-)




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[Emc-users] Glade display of an active gcode

[Tom Easterday]

I want to have an indication of some type (LED or other) in my Glade panel that 
tells me whether I am in G8 or G7 (radius or diameter mode). Is there a Hal 
widget show the active status of a G code?  Or is there a way to map G7/G8 to a 
pin in order to then tie that to a LED?
Thanks,
-Tom


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Re: [Emc-users] 2.7.0 Docs

[Jon Elson]

On 09/13/2015 01:38 PM, Gene Heskett wrote:
> On Sunday 13 September 2015 12:08:29 Jon Elson wrote:
>
>> On 09/13/2015 08:59 AM, John Thornton wrote:
>>> Thanks, in the standard PDF viewer that comes with Debian Wheezy
>>> they show up fine. All the images used are .png type. I don't have
>>> kpdf and it does not show up in the package manager so I can't test
>>> it.
>> I'm using "document viewer" in Ubuntu 12.04, and the
>> pictures work fine, here, also.
>>
>> Jon
> If it has a heavily stylized lower case red 'e' for an icon, thats
> evince, running incognito.  And it also works.
>
Not sure about the icon, but it is, indeed, evince.  I have 
found evince works quite well, and am moving away from Adobe 
as they are getting strange about supporting Linux systems.  
I also use evince from the command line to view stored 
documents.

Jon

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Re: [Emc-users] mailing list vs forum

[Jim Craig]

On 9/13/2015 1:49 PM, Gene Heskett wrote:
> On Sunday 13 September 2015 12:50:20 Tom Easterday wrote:
>
>> It seems like the mailing list and forum are two completely different
>> venues, or are they?  I see many of the same people in the forum as
>> the mailing list but I see people in the forum not on the mailing list
>> or perhaps they just don’t post there…  I assume this (at least
>> apparent) disconnection is simply history - mailing list came first -
>> forum more recently. Anyway, I am just raising the issue wondering if
>> there is a way to link or cross reference them, or if there is some
>> etiquette posting information on one and/or the other.  I am sometimes
>> tempted to post information in both places but then I feel guilty
>> wondering if I am duplicating info….
>>
>> -Tom
> Escapee's from the M$ world seem to think the forum is some sort of
> magic. Very easily impressed frogs IMO.  For me its a PIMA, as I can't
> remember where the heck it is, and did I ever register a I&^$% password,
> and if so, what the heck is it? At my age, I've got far better things to
> do with ny dwindling wet ram.
>
> The mailing list comes to me 100% automatically, I read it, if I can
> answer a question I can with one click of the mouse on the proper reply
> style icon in the kmail toolbar, type my reply, and hit a ctl+return to
> send.  With the background scripts I have running, that is literally all
> I have to do.  Call me lazy, but a forum is a right pain in the arse in
> comparison.
>
> Cheers, Gene Heskett
I use both the forum and the mailing list. However I prefer the forum as 
it is much tidier than the mailing list and I can check it at my 
leisure. As a member of many other forums for other hobbies of my own I 
am quite used to forums. The biggest issue I have with the mailing list 
is the fact that the email trail gets very large. For example in my 
email response there are two other responses above mine. (I 
intentionally left them for illustrations purpose) ;-) . I do enjoy 
reading both. And you do get the immediate notification when someone 
posts something to the mailing list.

I like the forum because many people searching the web get directed 
there for their answer so posting a question and getting it answered 
there gives a potentially wider response base than on the mailing list. 
I know you can search the mailing list archive but then that seems to be 
more confusing to me vs the forum.

Just my 2 cents. John, I think we are up the about 6 cents now. Can we 
go buy something?

Jim Craig (NitroCH3NO2 on the forum)




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Re: [Emc-users] mailing list vs forum

[Gene Heskett]

On Sunday 13 September 2015 15:55:44 Bruce Layne wrote:

> On 09/13/2015 03:41 PM, andy pugh wrote:
> > A forum is great if you want to ask a question and get an answer to
> > only your question, ignoring the rest.
>
> I think that's the answer to your original query concerning the number
> of John Doe LinuxCNC members.  "I just want an answer to my question. 
> I don't want to sign up for your newsletter.  I'm not a part of your
> community, but if your community can benefit me"
>
> Maybe there should be a script to change all of the John Doe members
> to Joe Leech.  :-)
>
> Sez the guy who has received a lot more help from this community than
> he's returned.  :-/
>
> That reminds me... I've been having trouble installing 2.7  :-)
>
Why?  Package-manager has done it 2 or 3 times now since 2.7.0 was 
announced.  Zero  problems.>
>
>
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-Ed Howdershelt (Author)
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Re: [Emc-users] Glade display of an active gcode

[andy pugh]

On 13 September 2015 at 21:47, Tom Easterday  wrote:
>  Is there a Hal widget show the active status of a G code?

It should be possible to create one. The only way to do it that I can
see would be to poll the active g-codes:
http://www.linuxcnc.org/docs/html/config/python-interface.html#_linuxcnc_stat_attributes

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Re: [Emc-users] Glade display of an active gcode

[Tom Easterday]

Thanks Andy that works.  John Thornton also suggested the same thing on the 
IRC... Is there a document that describes the possible values for a given 
attribute returned by the Python interface?  The last value in the string of 
codes returned by Linuxcnc.stat.gcodes is the state of G7/G8.  In debugging we 
saw 0, 70, and 80 as values returned .  But we don't really know what (other?) 
expected values are...are these documented somewhere?
-Tom

>> On Sep 13, 2015, at 5:36 PM, andy pugh  wrote:
>> 
>> On 13 September 2015 at 21:47, Tom Easterday  wrote:
>> Is there a Hal widget show the active status of a G code?
> 
> It should be possible to create one. The only way to do it that I can
> see would be to poll the active g-codes:
> http://www.linuxcnc.org/docs/html/config/python-interface.html#_linuxcnc_stat_attributes
> 
> -- 
> atp
> If you can't fix it, you don't own it.
> http://www.ifixit.com/Manifesto
> 
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Re: [Emc-users] mailing list vs forum

[Ron Bean]

>The biggest issue I have with the mailing list
>is the fact that the email trail gets very large. For example in my
>email response there are two other responses above mine. (I
>intentionally left them for illustrations purpose) ;-) .

I've never understood why people don't just block-delete the parts 
they're not replying to-- it's only a couple of keystrokes (or 
mouse-strokes) in most editors. I've been on the 'net *just* long enough 
to remember when everyone did it that way. For some reason the tradition 
didn't carry over (even though it's actually easier with a GUI than with 
a text-based interface).


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