On Thu, 2012-01-26 at 08:40 +0200, Viesturs Lācis wrote:
... snip
> Ground is shared on both sides, because 5V and 12V are supplied by PC's PSU.
> Is there a simple way I can drive that transistor without optoisolator?
I think you could add a smaller transistor in place of the
opto-isolator. See t
On 01/25/2012 01:43 PM, Viesturs Lācis wrote:
> 2012/1/25 andy pugh:
>> On 25 January 2012 21:07, Viesturs Lācis wrote:
>>
>>> Kirk, I am getting totally confused...
>>> What is the difference in schematics between both images in Your last
>>> email? I cannot see any...
>>
>> The direction the arr
2012/1/26 Kirk Wallace :
> On Wed, 2012-01-25 at 23:43 +0200, Viesturs Lācis wrote:
>> 2012/1/25 andy pugh :
>> > On 25 January 2012 21:07, Viesturs Lācis wrote:
>> >
>> >> Kirk, I am getting totally confused...
>> >> What is the difference in schematics between both images in Your last
>> >> emai
On Thursday, January 26, 2012 12:59:48 AM Mark Cason did opine:
> On 01/25/2012 04:44 AM, gene heskett wrote:
> > Why not try (g)awk? You can search, match strings, and do some math
> > with it. Of course you could always use a combination of sed, awk and
> > bash, or simply perl.
> > I looked at
On 01/25/2012 04:44 AM, gene heskett wrote:
> Why not try (g)awk? You can search, match strings, and do some math with
> it. Of course you could always use a combination of sed, awk and bash,
> or simply perl.
> I looked at the gawk man page, didn't see any mention of floating point
> math so I kep
On 01/25/2012 02:44 AM, gene heskett wrote:
> On Wednesday, January 25, 2012 05:29:19 AM Rafael Skodlar did opine:
>
>> On 01/24/2012 11:21 AM, gene heskett wrote:
>>> On Tuesday, January 24, 2012 01:46:15 PM Rafael Skodlar did opine:
>>>
>>> [...]
>> Why not try (g)awk? You can search, ma
On Wed, Jan 25, 2012 at 07:11:35PM -0500, Ed Nisley wrote:
> On Wed, 2012-01-25 at 22:20 +, andy pugh wrote:
> > Even that is potentially optional:
>
> Oh, *wow*... Yet Another Way to confuse myself beyond recognition.
>
> I must put the tool probe switch somewhere more-or-less fixed before I
2012/1/24 Eric Keller
>
> Seems to me that the CNCzone moderator is a EMC doubter at best, maybe I'm
> wrong.
You mean like, have-been-using-EMC-the-last-nine-years doubter?
--
Keep Your Developer Skills Current with Le
2012/1/25 Chris Radek
> Michael,
>
> Thanks for your criticism. I have taken several days to think about
> it. I have not discussed my thoughts with the board and I am
> speaking only for myself and to my own relationship to the project.
> ...
Chris,
I think too you made the right decision.
On Wed, 2012-01-25 at 22:20 +, andy pugh wrote:
> Even that is potentially optional:
Oh, *wow*... Yet Another Way to confuse myself beyond recognition.
I must put the tool probe switch somewhere more-or-less fixed before I
start invoking that code, but I like what it can do!
--
Ed
http://so
On Wed, 2012-01-25 at 23:43 +0200, Viesturs Lācis wrote:
> 2012/1/25 andy pugh :
> > On 25 January 2012 21:07, Viesturs Lācis wrote:
> >
> >> Kirk, I am getting totally confused...
> >> What is the difference in schematics between both images in Your last
> >> email? I cannot see any...
> >
> > Th
On Wednesday, January 25, 2012 05:26:08 PM Chris Radek did opine:
> Michael,
>
> Thanks for your criticism. I have taken several days to think about
> it. I have not discussed my thoughts with the board and I am
> speaking only for myself and to my own relationship to the project.
>
> I agree
On Wed, 2012-01-25 at 23:07 +0200, Viesturs Lācis wrote:
... snip
> Kirk, I am getting totally confused...
Sorry about that.
> What is the difference in schematics between both images in Your last
> email? I cannot see any...
NPN Not Pointing iN
|/ Collector
Base ---|
|\
On 25 January 2012 22:09, gene heskett wrote:
> I am down to adding the subroutine call after the M6 T#
Even that is potentially optional:
http://www.linuxcnc.org/docview/devel/html/remap/structure.html
(but probably not worth the trouble unless you are going to want to
_always_ probe tool-lengt
On Wednesday, January 25, 2012 04:49:03 PM Ed Nisley did opine:
> On Tue, 2012-01-24 at 18:04 -0500, gene heskett wrote:
> > if I can insert those few lines of code after the M6 T# command.
>
> If you add:
>
> [EMCIO]
> TOOL_CHANGE_AT_G30 = 1
That is I believe, a new one to me, thanks Ed. I'm
2012/1/25 andy pugh :
> On 25 January 2012 21:07, Viesturs Lācis wrote:
>
>> Kirk, I am getting totally confused...
>> What is the difference in schematics between both images in Your last
>> email? I cannot see any...
>
> The direction the arrow points in the transistor schematic symbol.
Ok, tha
I mostly agree with Chris on this one, some comments added below.
> Michael,
>
> Thanks for your criticism. I have taken several days to think about
> it. I have not discussed my thoughts with the board and I am
> speaking only for myself and to my own relationship to the project.
>
> I agree wi
On Wed, Jan 25, 2012 at 09:07:14PM +, andy pugh wrote:
>
> I see your point, but that does leave a bit of a problem.
> Currently I can have a great idea for a modification to LinuxCNC. I
> can spend months working on it to get it to the point where it can be
> demonstrated. Then somebody can s
2012/1/25 Peter C. Wallace
> > Thanks! I probably stick to 7i43 as I already have it. Which firmware
> > should I use here?
> >
> SVST6_6
> >
> >> Which 5i23 firmware goes for both cases?
> Both would need a new firmware files (SVST12_12_7I52S, SVST12_12_7I47)
>
> Thanks, Peter! Just ordered 7i48
On 25 January 2012 21:07, Viesturs Lācis wrote:
> Kirk, I am getting totally confused...
> What is the difference in schematics between both images in Your last
> email? I cannot see any...
The direction the arrow points in the transistor schematic symbol.
--
atp
The idea that there is no such
2012/1/25 Kirk Wallace :
> On Wed, 2012-01-25 at 21:16 +0200, Roland Jollivet wrote:
> ... snip
>> All I'm saying is;
>> BD138 is PNP
>> BD139 is NPN
>>
>> Just make sure that the symbol used matches the description, otherwise if
>> you automatically place the part, you'll have the wrong pin layout
On Wed, Jan 25, 2012 at 01:53:51PM -0700, s...@highlab.com wrote:
>
> I have a list of things *I* want to do to the linuxcnc project, but
> I'd never dream of telling anyone to work on them. It's not my place
> to tell folks what to do.
Although I am not a contributor to LinuxCNC I have contribu
On 25 January 2012 20:53, s...@highlab.com wrote:
> People are saying thing like:
> "What's the road map of features for future releases?"
> "What features should/shouldn't I work on?"
> These kinds of questions make no sense in my mental model of the project.
I see your point, but that does le
I am not a board member or anything official, I'm just some guy who hacks on
linuxcnc sometimes. I speak for myself.
I've been following this thread since the start, and there is a disconnect
between what people are asking for and how i think this project works.
People are saying thing like:
[this should move to emc-developers, which is why I'm cc'ing there]
it just occured to me that a decent parser would give us the opportunity for a
significant language simplification while retaining backwards compatibility.
An example for the current RS274NGC language with variable references,
On 1/25/2012 2:24 PM, Lars Andersson wrote:
> On an ASUS ATN5NM10-I mobo (selected on recommendation in this list) I have
> two partitions, one with a plain Ubuntu 10.04
>
> and one with Ubuntu 10.04 2.6.32-122-rtai. This mobo works fine, max jitter
> like 9000, I have the base thread interval set
On 1/25/2012 2:10 PM, Chris Radek wrote:
> Michael,
>
> Thanks for your criticism. I have taken several days to think about
> it. I have not discussed my thoughts with the board and I am
> speaking only for myself and to my own relationship to the project.
>
> I agree with you that there are some
IRC support is good too for 'immediate questions'.
This isn't such a small group that we should have 'just one' channel
of communications.
'Official announcements' should go out on the group web site, and that
same information
made available to 'freshmeat', sourceforge, git, and any other related
I have generally found that old discussions - on forums or email - quite
often provide a great resource for troubleshooting.
Beyond that, the real issue is critical mass of participants. If there is
very little signal, it is irrelevant what the signal to noise ratio is.
C Buckley
On Wed, Jan 25,
On 25/01/2012 16:39, andy pugh wrote:
> On 25 January 2012 16:22, Ian W. Wright wrote:
>
>> It is a long,
>> tedious but ultimately simple and low-tech process and, to
>> get it right, this is the only way to do it.
> I would have thought that, in principle, a torque meter and encoder
> could accu
2012. gada 25. Jan. 20:18 "Roland Jollivet"
rakstīja:
>
> 2012/1/25 Viesturs Lācis
>
> > 2012. gada 25. Jan. 19:39 "Roland Jollivet"
> > rakstīja:
> > >
> > > >
> > > Haha. Sorry, it's funny. The BD139 is a NPN, so the position was
right,
> > but
> > > the symbol should have been changed from PN
On an ASUS ATN5NM10-I mobo (selected on recommendation in this list) I have
two partitions, one with a plain Ubuntu 10.04
and one with Ubuntu 10.04 2.6.32-122-rtai. This mobo works fine, max jitter
like 9000, I have the base thread interval set at 25000.
At startup of the rtai system there is
2012/1/25 Viesturs Lācis
> 2012. gada 25. Jan. 19:39 "Roland Jollivet"
> rakstīja:
> >
> > >
> > Haha. Sorry, it's funny. The BD139 is a NPN, so the position was right,
> but
> > the symbol should have been changed from PNP to NPN. Otherwise, you can
> > leave the new drawing as is, but label it
Michael,
Thanks for your criticism. I have taken several days to think about
it. I have not discussed my thoughts with the board and I am
speaking only for myself and to my own relationship to the project.
I agree with you that there are some technical problems with how the
renaming was done; i
On Wed, 25 Jan 2012, Andrew wrote:
> Date: Wed, 25 Jan 2012 20:36:21 +0200
> From: Andrew
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "Enhanced Machine Controller (EMC)"
> Subject: Re: [Emc-users] MESA questions
>
> 2012/1/25 Peter C. Wallace
>
>> On Wed, 25 Jan 2012, Andrew w
2012. gada 25. Jan. 19:39 "Roland Jollivet"
rakstīja:
>
> >
> Haha. Sorry, it's funny. The BD139 is a NPN, so the position was right,
but
> the symbol should have been changed from PNP to NPN. Otherwise, you can
> leave the new drawing as is, but label it as a BD138.
>
> The BD138 is PNP.
>
So do
2012/1/25 Kirk Wallace
> What servo drivers does he have? If the drivers have the option, it
> might be better to use a torque or velocity input.
>
> No analog option, unfortunately.
> RS422 is a standard that describes handling a signal through a pair of
> wires. Generally, I believe any digit
On 25 January 2012 20:17, Kirk Wallace wrote:
> On Wed, 2012-01-25 at 19:52 +0200, Roland Jollivet wrote:
> ... snip
> > By the way, you are using a PNP package for a NPN device. Be sure to
> > change it before doing a layout.
> >
> > Regards
> > Roland
>
> Uugh, that's embarrassing. I got the p
2012/1/25 Peter C. Wallace
> On Wed, 25 Jan 2012, Andrew wrote:
>
> > Date: Wed, 25 Jan 2012 19:26:50 +0200
> > From: Andrew
> > Reply-To: "Enhanced Machine Controller (EMC)"
> >
> > To: "Enhanced Machine Controller (EMC)" >
> > Subject: [Emc-users] MESA questions
> >
> > Hello,
> >
> > S
On Wed, 2012-01-25 at 10:17 -0800, Kirk Wallace wrote:
... snip
> I suppose the BD139 could be made to work, but I would need to build the
> circuit to say anything with confidence. See attached.
... snip
I suppose being able to use SPICE would help. Maybe I'll learn to use it
in another life.
ht
Ok, now I got it.
Thank You, Kirk, for explanatory scheme!
Thank You, Roland, for pointing it out.
I will try in to resolder within next few hours and report back.
Viesturs
2012. gada 25. Jan. 19:19 "Kirk Wallace"
rakstīja:
> On Wed, 2012-01-25 at 19:52 +0200, Roland Jollivet wrote:
> ... snip
On Wed, 2012-01-25 at 19:26 +0200, Andrew wrote:
... snip
> 2. The friend's machine has 7 servos (including 3 spindles) in step/dir
> mode, and RS422 is preferred for higher input frequency. Which RS422
> daughter cards for 5i20 (or other FPGA) are supported with hardware?
... snip
What servo driv
On Wed, 2012-01-25 at 19:52 +0200, Roland Jollivet wrote:
... snip
> By the way, you are using a PNP package for a NPN device. Be sure to
> change it before doing a layout.
>
> Regards
> Roland
Uugh, that's embarrassing. I got the part number from Viesturs' e-mail
reply, just pasted it in and di
On Wed, 25 Jan 2012, Andrew wrote:
> Date: Wed, 25 Jan 2012 19:26:50 +0200
> From: Andrew
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "Enhanced Machine Controller (EMC)"
> Subject: [Emc-users] MESA questions
>
> Hello,
>
> Some questions regarding MESA cards:
> 1. Please confi
2012. gada 25. Jan. 18:55 "Roland Jollivet"
rakstīja:
>
> On 25 January 2012 19:41, Kirk Wallace
wrote:
>
> > On Wed, 2012-01-25 at 17:06 +0200, Viesturs Lācis wrote:
> > ... snip
> > > I tested by connecting/disconnecting 4N25 pin1 to GND and measured the
> > > voltage on laser power pins.
> >
>
On 25 January 2012 19:41, Kirk Wallace wrote:
> On Wed, 2012-01-25 at 17:06 +0200, Viesturs Lācis wrote:
> ... snip
> > I tested by connecting/disconnecting 4N25 pin1 to GND and measured the
> > voltage on laser power pins.
>
> Do you mean pin 2? Shorting pin 2 to ground should complete the circu
Hi, Ben Jakson published the two links below.
Since I have a four axis (XYUV) hot wire foam
cutter I jumped into the tube at youtube. Mr.
Sammel implemented exactly what I was looking for
a while. I manly use the cutter for wing panels
for model air planes.
I downloaded the patch. But how to insta
Hello,
Some questions regarding MESA cards:
1. Please confirm the configuration 7i43+7i48 for 6 channel analog servo.
Is there full firmware support?
2. The friend's machine has 7 servos (including 3 spindles) in step/dir
mode, and RS422 is preferred for higher input frequency. Which RS422
daughte
On 25 January 2012 16:22, Ian W. Wright wrote:
> It is a long,
> tedious but ultimately simple and low-tech process and, to
> get it right, this is the only way to do it.
I would have thought that, in principle, a torque meter and encoder
could accurately measure the mainspring characteristics,
Found my pics of the few pages in
The science of clocks and watches
A. L. Rawlings British Horological Institute 1993
about the fusee
http://www.collection.archivist.info/archive/DJCPD/PD/2007/2007_06_06_Rawlings/
Which has some maths for those wishing to put it in gcode
Dave Carolin
As John said, in horology, the curve of a fusee has to
exactly match the force of the mainspring if it is to do its
job properly. The idea is that the force of a wound up
spring is much greater than that of a spring which is mostly
unwound and the fusee is there as a continually variable
pulle
Dave Caroline wrote:
> On Wed, Jan 25, 2012 at 12:38 PM, Lester Caine wrote:
>> > John Prentice wrote:
>>> >> From: "John Thornton"
>>> IIRC Jeff Eppler cut a fusee for a mousetrap powered car...
>>> >>
>>> >> Sadly a fusee for clock work needs a curved profile to match spring
>>> >> for
On Wed, Jan 25, 2012 at 06:17:22AM -0500, Mark Wendt wrote:
> Andy,
>
> Understandable. The paypal link could be set up so that it could be
> turned on when funds are needed and turned off when the funding is met.
> The treasurer would have to stay on top of that though.
I now regret mentio
I'm not a big forum user in general. I think the forum model must be
carried out very carefully for it to be effective.
I think the LinuxCNC forum is very good.I think the CNCZone is not
so good.
I used to be a regular reader/contributor on the CNCZone but the hassle
factor was too high.
On Tue, 2012-01-24 at 18:04 -0500, gene heskett wrote:
> if I can insert those few lines of code after the M6 T# command.
If you add:
[EMCIO]
TOOL_CHANGE_AT_G30 = 1
Then M6 will move to the G30 position, which you've cleverly set right
above the probe switch. Admittedly, you must then call the
2012/1/20 Kirk Wallace :
> On Fri, 2012-01-20 at 10:39 -0800, Kirk Wallace wrote:
>> On Fri, 2012-01-20 at 10:42 +0200, Viesturs Lācis wrote:
>> ... snip
>> > Kirk, I repasted Your scheme here:
>> > http://picpaste.com/scheme-3V0w43QM.png
> ... snip
>
> Revised schematic attached.
Pasted the schem
On 25 January 2012 12:12, Sven Wesley wrote:
> If you guys think that the internal forum works well so be it. To me it's
> not better at all than (for example) cnczone or the mailing list.
I agree. However, it is much easier to find, and so ends up being the
first port of call for new users with
2012/1/23 Michael Haberler :
>
> What I do blame you for, and what I take issue with, is the style and
> attitude in which you have come to, and implemented your decision, which is
> symptomatic for how the EMC2 project is run, and what is wrong with it from a
> steering perspective:
>
> After y
On Wednesday, January 25, 2012 08:59:05 AM Sven Wesley did opine:
> > Andy,
> >
> > Understandable. The paypal link could be set up so that it could be
> > turned on when funds are needed and turned off when the funding is
> > met. The treasurer would have to stay on top of that though.
> >
> >
On Wed, Jan 25, 2012 at 12:38 PM, Lester Caine wrote:
> John Prentice wrote:
>> From: "John Thornton"
>>> IIRC Jeff Eppler cut a fusee for a mousetrap powered car...
>>
>> Sadly a fusee for clock work needs a curved profile to match spring forces
>> rather than straight line.
>>
>> I think they ar
John Prentice wrote:
> From: "John Thornton"
>> IIRC Jeff Eppler cut a fusee for a mousetrap powered car...
>
> Sadly a fusee for clock work needs a curved profile to match spring forces
> rather than straight line.
>
> I think they are hard to cut on a CNC lathe although reasonably easy to mill
>
That's the beauty of having different methods of communication. You like
the Zone and I hate it and never go there. Doesn't make one better than
the other in any way, it just makes the LinuxCNC forum better for me and
5000 other users and the Zone better for you and the people who like to
go th
- Original Message -
From: "John Thornton"
> IIRC Jeff Eppler cut a fusee for a mousetrap powered car...
>
> John
Sadly a fusee for clock work needs a curved profile to match spring forces
rather than straight line.
I think they are hard to cut on a CNC lathe although reasonably easy
>
>
> Andy,
>
> Understandable. The paypal link could be set up so that it could be
> turned on when funds are needed and turned off when the funding is met.
> The treasurer would have to stay on top of that though.
>
> Mark
>
>
This must be the most wide spread discussion in ages at this mailing
well they both have a first name that starts with J LOL so I got one
letter right.
John
On 1/25/2012 6:04 AM, sam sokolik wrote:
> You can see it here.
>
> http://www.youtube.com/watch?v=ACvRilmIKDQ
>
> (that was JohnK)
>
> I really like the flexibility over a standard. (I didn't know there was
You can see it here.
http://www.youtube.com/watch?v=ACvRilmIKDQ
(that was JohnK)
I really like the flexibility over a standard. (I didn't know there was
a 'standard' from research I have done) And with a little math - it
will make a perfect tapered thread. With re-mapping now there are even
Chris,
Is there any need to have a second backup of the whole works?
John
On 1/24/2012 1:48 PM, Chris Radek wrote:
> On Tue, Jan 24, 2012 at 11:31:11AM -0800, Kirk Wallace wrote:
>> Thank goodness for the servers that host our website, wiki and such. It
>> looks like PMDX gets credit for this. T
IIRC Jeff Eppler cut a fusee for a mousetrap powered car...
John
On 1/24/2012 3:52 PM, John Prentice wrote:
> - Original Message -
> From: "Kent A. Reed"
>
>
>> Several items were called out recently as being show stoppers for
>> LinuxCNC. I do not aspire to learn the inner workings of Li
On 01/25/2012 06:06 AM, andy pugh wrote:
> On 25 January 2012 11:01, Mark Wendt wrote:
>
>
>> Does our BOD have a treasurer position? If not, perhaps it's time we
>> added that position, create a single bank account, attach a Paypal
>> account to it and use that to pay the web bills?
>>
On 25 January 2012 11:01, Mark Wendt wrote:
> Does our BOD have a treasurer position? If not, perhaps it's time we
> added that position, create a single bank account, attach a Paypal
> account to it and use that to pay the web bills?
There is some risk there of ending up with an embarrassment
On 01/25/2012 05:49 AM, gene heskett wrote:
>> Dave,
>>
>> I think that's a great idea. A number of different forums, groups, etc
>> that I belong to do just that, and it really helps with the cost of
>> upkeep. What say ye fellow LinuxCNC'ers? Let's help out the folks that
>> are keeping our we
On 01/25/2012 05:48 AM, gene heskett wrote:
>>
> The pclos box Mark. Its a little odd. OTOH so is ubuntu when your first
> experience with linux was redhat. You can sudo gedit, but not su - or sudo
> -i& then run gedit, no biggie. I've used vim for 20 years, so its not
> like it was new
On Wednesday, January 25, 2012 05:49:24 AM Mark Wendt did opine:
> On 01/24/2012 04:52 PM, Dave wrote:
> > Thank You Guys for doing that and footing the bill..I know hosting
> > is not free.. if you put a donate link someplace... I think that might
> > help offset some costs.
> >
> > Dave
>
On Wednesday, January 25, 2012 05:45:30 AM Mark Wendt did opine:
> On 01/24/2012 02:21 PM, gene heskett wrote:
> > I probably have 5 or 7 tabs open, su- at any one time. Biggest
> > problem then is that x belongs to gene, and root collects megabytes
> > of x errors when root forgets to use vim an
On Wednesday, January 25, 2012 05:29:19 AM Rafael Skodlar did opine:
> On 01/24/2012 11:21 AM, gene heskett wrote:
> > On Tuesday, January 24, 2012 01:46:15 PM Rafael Skodlar did opine:
> >
> > [...]
> >
> >
> > Chuckle, I need that this morning (morning? Duh, it's past 2pm), the
> > 2nd cup h
On 01/24/2012 04:52 PM, Dave wrote:
> Thank You Guys for doing that and footing the bill..I know hosting
> is not free.. if you put a donate link someplace... I think that might
> help offset some costs.
>
> Dave
>
Dave,
I think that's a great idea. A number of different forums, groups, e
On 01/24/2012 02:21 PM, gene heskett wrote:
> I probably have 5 or 7 tabs open, su- at any one time. Biggest problem
> then is that x belongs to gene, and root collects megabytes of x errors
> when root forgets to use vim and tries to use gedit.
>
Gene, is this on the pclos machine, or on the
On 25 January 2012 08:27, Steve Blackmore wrote:
> Be MUCH better if along the hypotenuse was G33.1 and along the axis was
> G33 (or even better G32). At least then threading would be industry
> standard.
It isn't even that clear-cut:
http://pdf.directindustry.com/pdf/delectron/g-code-programmin
On Tue, 24 Jan 2012 23:47:26 -0500, you wrote:
>And that is the reason EMC measures pitch along the hypotenuse.
>
>A fairly famous quote from Allan Kay goes:
>"Simple things should be simple, complex things should be possible."
Butt you've made a simple thing complex.
Be MUCH better if along the
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