2012/3/9 Dave :
> Mesa has their THC board that I believe does exactly what you are
> looking for.
Dave, I think that it is unclear, if the problem is with the hardware,
or with the signal handling within LinuxCNC...
> Look at the very last item on this page:
> http://www.mesanet.com/
Scott, THC
Mesa has their THC board that I believe does exactly what you are
looking for.
Look at the very last item on this page:
http://www.mesanet.com/
Dave
On 3/8/2012 10:46 PM, Scott Hasse wrote:
> I'm doing some volunteer work for a local hackerspace (sector67.org). We
> recently completed convers
2012/3/9 Scott Hasse :
>
> Has anyone used a circuit with a voltage to frequency converter (LM331 or
>similar) to create a digital pulse train read in linuxCNC as an encoder I
>presume and then hooked that up to the analog m66 inputs?
I have it for nozzle-height-control. I have no way to check
Typical 1st world behaviour of Gene,
just toss a handgranade to stun them . . . . . .
j.
On Fri, Mar 9, 2012 at 8:55 AM, Michael Haberler wrote:
>
> Am 09.03.2012 um 05:40 schrieb gene heskett:
>
> > On Thursday, March 08, 2012 11:21:41 PM Michael Haberler did opine:
> >
> >> Am 08.03.2012 um
Am 09.03.2012 um 05:40 schrieb gene heskett:
> On Thursday, March 08, 2012 11:21:41 PM Michael Haberler did opine:
>
>> Am 08.03.2012 um 18:07 schrieb gene heskett:
>>> On Thursday, March 08, 2012 12:06:38 PM Mark Wendt did opine:
On 03/08/2012 09:41 AM, Michael Haberler wrote:
> This t
Am 09.03.2012 um 02:51 schrieb Jeff Epler:
> The responses in this thread seem to have been pretty heavily in favor
> of moving to self-hosted service. The board will soon start on the
> behind-the-scenes work to make this a reality.
>
> We've looked around for mailing list archive software tha
On Thu, 8 Mar 2012 21:46:16 -0600
Scott Hasse wrote:
> I'm doing some volunteer work for a local hackerspace
> (sector67.org). We recently completed conversion of two anilam knee
> mills to LinuxCNC, including adding a 4th rotary stepper axis for one
> of the mills. We now want to do some simpl
I'm doing some volunteer work for a local hackerspace (sector67.org). We
recently completed conversion of two anilam knee mills to LinuxCNC, including
adding a 4th rotary stepper axis for one of the mills. We now want to do some
simple plunge EDM'ing, and ideally would reuse the LinuxCNC z axi
On Thursday, March 08, 2012 11:21:41 PM Michael Haberler did opine:
> Am 08.03.2012 um 18:07 schrieb gene heskett:
> > On Thursday, March 08, 2012 12:06:38 PM Mark Wendt did opine:
> >> On 03/08/2012 09:41 AM, Michael Haberler wrote:
> >>> This thread is now 15 posts long.
> >>>
> >>> Is there an
Stephen Dubovsky wrote:
> I thought onboard video was always a no-no w/ the shared memory. How does
> the 525 get away w/ it?
>
Some older machines from the early 2000's had real problems with shared
main/graphics
memory. Newer models seem to have fixed that with dedicated graphics memory
or
> If you plan on using a Windows environment, then you can use Microchip's
> MPLAB PIC IDE and several different C compilers, all freeware. MPLABX
> <...>
Hi Doug:
Thanks for the info... I just received the pickit 2 debug from microchip.
Have the latest v. of MPLAB
On 3/8/2012 8:51 PM, Jeff Epler wrote:
> The responses in this thread seem to have been pretty heavily in favor
> of moving to self-hosted service. The board will soon start on the
> behind-the-scenes work to make this a reality.
>
> We've looked around for mailing list archive software that is be
The responses in this thread seem to have been pretty heavily in favor
of moving to self-hosted service. The board will soon start on the
behind-the-scenes work to make this a reality.
We've looked around for mailing list archive software that is better
than the basic mailman one (something that
Am 08.03.2012 um 18:07 schrieb gene heskett:
> On Thursday, March 08, 2012 12:06:38 PM Mark Wendt did opine:
>
>> On 03/08/2012 09:41 AM, Michael Haberler wrote:
>>> This thread is now 15 posts long.
>>>
>>> Is there any chance that the actual and expected behaviour can be
>>> condensed into a
Dave, you have apoint there.
I'm speaking now strictly as an amateur CNC user. Of course, making one
or a couple of parts is much quicker manually than using CNC. But there
are lots of parts you couldn't possibly make by hand, and this is where
CNC comes in on the hobbyist level. Some examples:
You bring up a good point about the vesa drivers. I'll give them a shot
tonight. The optiplex 320s are giving me about 20us latency. Thats good
enough to software step one of my machines and I have a new mesa 5i25 for
the other. But the 200ms latency would screw up the servo thread even if
hard
On Wed, 7 Mar 2012 23:17:17 -0600
Jack Coats wrote:
> As an old friend told me...
> UNIX (and Linux) are user friendly, but it is picky about who its
> friends are.
>
> Yes, most folks that talk about software not being user friendly,
> don't want to have to read a manual, or check requisites
Up to ~1.5hp you can buy 115v input VFDs that output 220v. I think they
just use voltage doublers in their rectifier stage and 2x the capacitance.
FWIW, these DON'T work well in a (properly wired) garage. 120V outlets in
a garage are supposed to all be GFCI protected. Motor frame leakage
curren
On Thu, 2012-03-08 at 12:27 -0800, Kirk Wallace wrote:
... snip
> and added memory for 512MB total. I also needed to edit xorg.conf to add
> monitor refresh rate and resolution. They have decent latency at 38000
> nS (38 uS).
... snip
Well in looking further 38000ns is not really very good, but I'
On Thu, 2012-03-08 at 13:40 -0500, Stephen Dubovsky wrote:
> Is there an equivalent to the D525MW w/ DVI output available? Larger form
> factor is fine too. I already have some DVI only LCDs that I'd like to use.
>
> I thought onboard video was always a no-no w/ the shared memory. How does
> th
On Thursday, March 08, 2012 02:53:49 PM Frank Tkalcevic did opine:
> Don't forget GWiz
> (http://wiki.linuxcnc.org/cgi-bin/wiki.pl?GWiz_-_A_Gcode_Wizard_Framewor
> k) - it needs a screen shot - that page doesn't sell it well.
>
> I've build some lathe wizards, and I've just converted my router
>
On 3/8/2012 12:22 PM, Cathrine Hribar wrote:
>
> On Fri, 02 Mar 2012 23:14:03 -0500
>"Kent A. Reed" wrote:
>> On 3/2/2012 10:32 PM, Cathrine Hribar wrote:
>>> On Fri, 02 Mar 2012 15:04:54 -0500
>>> Doug Goff wrote:
Bill,
If you plan on using a Windows environment, then you ca
On Thu, 2012-03-08 at 03:19 -0800, charles green wrote:
> it is a cost sensitive application, as always, and limited to single
> 115v phase mains supply. there are the sherline spindles/motors with
> decent speed controls, but sherline stuff is kinda spendy. i dont
> recall seeing any retail vfd
Check out NewEgg.com or Logic Supply for DVI equipped Mini ITX boards.
Or do a search for "motherboard intel 525" on google and see what you find.
Fortunately I only have a few older DVI only monitors and they are near
ready for the trash bin. It seems like DVI is fading and HDMI is
taking
Is there an equivalent to the D525MW w/ DVI output available? Larger form
factor is fine too. I already have some DVI only LCDs that I'd like to use.
I thought onboard video was always a no-no w/ the shared memory. How does
the 525 get away w/ it?
I recently picked up a pair of optiplex 320s c
Viesturs Lācis wrote:
> I also have thought about the solution for situations, what to do,
> when a machining operation is simple enough that writing a code for it
> would take more time than actual work.
> My intended solution - add 2 (or 3) MPGs (most probably - cheap, low
> resolution encoders)
charles green wrote:
> cnczone - ive seen that before somehow.
>
> the task manager of winxp has a process priority setting, with one of the
> choices being 'realtime'. never tried it for anything. but the realtime
> mode of operation in linux is still a general hardware timeshare approach,
>
Changed Subject since the thread split from the original question.
>From my own personal experience (hobbyist side), I found that Linuxcnc fit
the bill for me.
Why?
1. I had old computers (with blanked hard drives) lying around and did not
want to buy an OS to get operational.
2. I looked at Tur
Mark Wendt wrote:
> You don't really have much of an understanding about computers,
> operating systems, and the things done inside the OS. If you want an
> understanding of what multi-tasking really is, do a search on operating
> system schedulers. You're talking about multi-processing, not
charles green wrote:
>> And why should anyone of us use TurboCNC anyway, if LinuxCNC
>> provides
>> more features and better performance?
>>
>
> that was my question. is such claim true? it is a bit like speaking english
> and wondering if any other language is as effective for a particular
Every where I 'worked' I mounted a vise and lathe chuck on a corner of the
table and tried to leave them in place all the time. The vise is dialed in
with the top of the jaw, the face of the jaw and each end of the jaw at a
known location on the table. The lathe chuck (mounted to a plate) is in
kno
On Fri, 02 Mar 2012 23:14:03 -0500
"Kent A. Reed" wrote:
> On 3/2/2012 10:32 PM, Cathrine Hribar wrote:
>>
>> On Fri, 02 Mar 2012 15:04:54 -0500
>>Doug Goff wrote:
>>> Bill,
>>> If you plan on using a Windows environment, then you can use Microchip's
>>> MPLAB PIC IDE and several differe
On Thursday, March 08, 2012 12:06:38 PM Mark Wendt did opine:
> On 03/08/2012 09:41 AM, Michael Haberler wrote:
> > This thread is now 15 posts long.
> >
> > Is there any chance that the actual and expected behaviour can be
> > condensed into a short testcase, please
> >
> > I'm referring to act
On Thursday, March 08, 2012 10:05:56 AM Jan de Kruyf did opine:
> Gene,
> I dont know, but sometimes Cprogrammers designing a new (linuxcnc)
> language seem to be infected by C rules.
>
> So K&R says that the scope of a variable does not extend outside the
> block where it is defined (read: first
2012/3/8 John Stewart :
>
> Much of my model building is simple machining operations, and I *do* find
> myself using my old mill rather than my new CNC one, because it's just faster
> to throw in a bit of material and machine it.
>
Hmm, I have yet to "grow" to get my first mill or lathe with Lin
On Thu, Mar 8, 2012 at 5:08 AM, Mark Wendt wrote:
> Depends on where you are and what you are doing. Almost all the
> machines here at the Lab have a Class C address. TCP wrappers keeps
> unwanted hosts out of my pants, and has worked well for doing that for a
> long time. The Lab owns all the
Awallin,
those gate drive opto's from Shane Colton are sweet
and the MITER's blogs are great
I have to replace an ebike BLDC controller
maybe able to use orphaned Mitsubishi motors with his design
thanks
TomP
--
Virtualiza
Heh - since we got the K&T back up and running - the manual mill has
been off. (except for boring out engine sleeves for scrap aluminum
cleanup). Even the simplest jobs are just as easy to throw on the cnc
an run in mdi or make a short program.
But that is just me.. (plus the k&t has 2 palle
Viesturs;
(I can't agree or disagree with any of this thread, as I'm on an exploratory
path, and I don't know what the eventual outcome will be)
> … but on the other hand, ngcgui probably
> should go mainstream as it is much better than hand-writing the code…
This is what is bandied about in t
2012/3/8 charles green :
> cnczone - ive seen that before somehow.
Probably You saw it mentioned in other discussion, where I posted it,
but did You read it? I had a link in there that explains Your next
question.
> the task manager of winxp has a process priority setting, with one of the
> choi
no, i was talking about commercial production machining centers, mostly fanuc
based, 15-30yr old vintages. only the earlier ones have tape drives, but they
all have 'tape' modes for storage periferals.
not sure about the decartes info.
--- On Thu, 3/8/12, Viesturs Lācis wrote:
> From: Viestu
Are you talking turbocnc? The $60 is for access to the source code. It
runs just fine if you don't pay.
That being said.. I started using turbocnc (and it has not been updated
since I stopped using quite a few years ago. It is a pretty basic
controller - Even the first Emc blew it out of th
that is certain to require a fresh clock battery and some floppy drive
cleaning. and $60? does shareware run without registration fees?
--- On Thu, 3/8/12, Mark Wendt wrote:
> From: Mark Wendt
> Subject: Re: [Emc-users] EMC2/Ubuntu updates - safe to install?
> To: "Enhanced Machine Controll
On 03/08/2012 09:41 AM, Michael Haberler wrote:
> This thread is now 15 posts long.
>
> Is there any chance that the actual and expected behaviour can be condensed
> into a short testcase, please
>
> I'm referring to actual NGC code - opinions do not lend themselves to
> debugging.
>
> -m
>
cnczone - ive seen that before somehow.
the task manager of winxp has a process priority setting, with one of the
choices being 'realtime'. never tried it for anything. but the realtime mode
of operation in linux is still a general hardware timeshare approach, no?
..including stuff like keyb
This thread is now 15 posts long.
Is there any chance that the actual and expected behaviour can be condensed
into a short testcase, please
I'm referring to actual NGC code - opinions do not lend themselves to debugging.
-m
Am 08.03.2012 um 00:22 schrieb gene heskett:
> On Wednesday, March
On 03/08/2012 09:26 AM, charles green wrote:
> the comp i'm on right now, i dont think i could find if i went shopping for
> used. it's still pluggin along. not hefty enough for penguin ubuntu 6 tho -
> that was my first try, and 667MHz + 256Mbyte ram couldn't do it. admittedly,
> i never spe
the comp i'm on right now, i dont think i could find if i went shopping for
used. it's still pluggin along. not hefty enough for penguin ubuntu 6 tho -
that was my first try, and 667MHz + 256Mbyte ram couldn't do it. admittedly, i
never spent more than 12 hours or so waiting on the installer.
2012/3/8 charles green :
>> It's true if all you want is a machine controller and
>> nothing else.
>
> so, again, strictly in the capacity of a machine controller, turbo cnc vs
> linuxcnc, the comparison and contrast results are what? have you a basis for
> comparison? do not limit your scrutin
2012/3/8 charles green :
> the machines i work with only have tape drives and serial ports, so all cam
> files are sent over serial lines as text (ascii i think). failed controller
> component replacement is a problem because the hardware platform does not
> have long term stability. it seems
On 03/08/2012 08:55 AM, charles green wrote:
>> It's true if all you want is a machine controller and
>> nothing else.
>>
> so, again, strictly in the capacity of a machine controller, turbo cnc vs
> linuxcnc, the comparison and contrast results are what? have you a basis for
> comparison?
> It's true if all you want is a machine controller and
> nothing else.
so, again, strictly in the capacity of a machine controller, turbo cnc vs
linuxcnc, the comparison and contrast results are what? have you a basis for
comparison? do not limit your scrutiny of the finest details.
--- On
the machines i work with only have tape drives and serial ports, so all cam
files are sent over serial lines as text (ascii i think). failed controller
component replacement is a problem because the hardware platform does not have
long term stability. it seems that is an essential quality of t
On 03/08/2012 08:24 AM, charles green wrote:
> that was my question. is such claim true? it is a bit like speaking english
> and wondering if any other language is as effective for a particular purpose.
> of course the answer is that english is the best language.
>
It's true if all you wan
> And why should anyone of us use TurboCNC anyway, if LinuxCNC
> provides
> more features and better performance?
that was my question. is such claim true? it is a bit like speaking english
and wondering if any other language is as effective for a particular purpose.
of course the answer is t
2012/3/8 charles green :
>
> the disposal liabilty pcs of a decade vintage have plenty of capacity to
> function as machine controllers, so why not repurpose them to that task
> rather than a dumpsite?
Ok, I totally agree with the point on nature-responsible (hopefully I
spelled the term correct
On 03/08/2012 07:17 AM, charles green wrote:
> the overcapacity problem is a problem of going to unnecessary lengths to
> accomplish a defined task, a problem of applying the most extreme measures in
> straigtforward cases.
>
Who said anything about going to unnecessary lengths? The capacity
the overcapacity problem is a problem of going to unnecessary lengths to
accomplish a defined task, a problem of applying the most extreme measures in
straigtforward cases.
if you had a pocket calculator, would you trade it in for a smart phone that
included a pocket calculator app, streaming w
Gene,
I dont know, but sometimes Cprogrammers designing a new (linuxcnc) language
seem to be infected by C rules.
So K&R says that the scope of a variable does not extend outside the block
where it is defined (read: first assigned to, in this case)
Now a compound statement (a sequence of statemen
it is a cost sensitive application, as always, and limited to single 115v phase
mains supply. there are the sherline spindles/motors with decent speed
controls, but sherline stuff is kinda spendy. i dont recall seeing any retail
vfd pages, but i'm thinking in the many H$ to a K$ or so for a dr
On 03/07/2012 06:22 PM, gene heskett wrote:
> On Wednesday, March 07, 2012 06:16:33 PM Mark Wendt did opine:
>> Gene,
>>
>> How are you returning the value of the global variable after you exit
>> the loop? Perhaps you need an assignment statement prior to the exit of
>> the loop to ensure you are
On 03/07/2012 01:35 PM, Jon Elson wrote:
> Mark Wendt wrote:
>
>> I've found it's easier to put ALL: ALL in /etc/hosts.deny, then
>> selectively put the hosts I want allowed in /etc/hosts.allow. You can
>> even get more granular by specifying what you want the hosts to be able
>> to access. T
On 03/07/2012 01:35 PM, Jon Elson wrote:
> Mark Wendt wrote:
>> I've found it's easier to put ALL: ALL in /etc/hosts.deny, then
>> selectively put the hosts I want allowed in /etc/hosts.allow. You
>> can even get more granular by specifying what you want the hosts to
>> be able to access. Tcpd
Don't forget GWiz
(http://wiki.linuxcnc.org/cgi-bin/wiki.pl?GWiz_-_A_Gcode_Wizard_Framework) -
it needs a screen shot - that page doesn't sell it well.
I've build some lathe wizards, and I've just converted my router (although I
usually use visual mill for cam) It is just waiting for someone to s
2012/3/6 Joachim Franek :
>
> FNB41060 - IGBT SMART PM,600V,10A
> < 10 Euro at Farnell
I think the IRAMS and this FNB41060 definitely 'solve' the H-bridge
part of the circuit. The challenge is to design current-sensing,
EMI-filtering, powersupplies, and optoisolation around the H-bridge.
I forgot
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