The HAL one-shot component can do that very easily.
"man oneshot" from the command line should get you the documentation.
On Sun, Nov 11, 2012, at 08:52 PM, N. Christopher Perry wrote:
> A 1 s pulse, +/-0.25 s, with +/-0.25 s timing accuracy would be adequate.
>
> N.C.
>
> On 2012-Nov-11, at
A 1 s pulse, +/-0.25 s, with +/-0.25 s timing accuracy would be adequate.
N.C.
On 2012-Nov-11, at 20:09, John Kasunich wrote:
> On Sun, Nov 11, 2012, at 07:44 PM, N. Christopher Perry wrote:
>> Is there a way to have a parallel port output generate a single pulse on
>> command? I have a vacuum
While I agree that a hall sensor would be a better choice, I believe reed
switches can be quite reliable as they have seen use as sensors for bicycle
speedometers for some time.
+++
"Anyone who believes exponential gro
On Sun, Nov 11, 2012, at 07:44 PM, N. Christopher Perry wrote:
> Is there a way to have a parallel port output generate a single pulse on
> command? I have a vacuum system that requires a pulse to turn it on/off,
> and would like to have my machine turn the vacuum on automatically.
How long of a
Thanks, I should have been more accurate in my initial description. It is
a hall effect sensor.
Scott
On Sun, Nov 11, 2012 at 6:34 PM, Bruce Layne
wrote:
>
> On 11/11/2012 03:00 PM, Scott Hasse wrote:
>
> > ...plus a magnetic reed switch that triggers once per chuck revolution.
>
> I wouldn't
Is there a way to have a parallel port output generate a single pulse on
command? I have a vacuum system that requires a pulse to turn it on/off, and
would like to have my machine turn the vacuum on automatically.
N.C.
---
On 11/11/2012 03:00 PM, Scott Hasse wrote:
> ...plus a magnetic reed switch that triggers once per chuck revolution.
I wouldn't use any mechanical switch in that application. There's a
chance it won't be able to respond fast enough at the faster spindle
speeds, but I'd be much more concerned
On Sun, 2012-11-11 at 18:00 -0500, Gene Heskett wrote:
> On Sunday 11 November 2012 17:59:21 Kent A. Reed did opine:
>
> > On 11/11/2012 11:28 AM, Gene Heskett wrote:
> > > Thanks Kent. I learned something today. Now if I could just get the
> > > hereafter figured out, I go into a room & then tr
On Sunday 11 November 2012 17:59:21 Kent A. Reed did opine:
> On 11/11/2012 11:28 AM, Gene Heskett wrote:
> > Thanks Kent. I learned something today. Now if I could just get the
> > hereafter figured out, I go into a room & then try to remember what it
> > was that I'm hereafter.
>
> I thought
Ahh.. I see that I've managed to shoot myself in the foot: I'd set it to 100
so I could more easily evaluate duty cycle increments. That will not remain at
that low a value in service.
Thank you for the quick response.
On 2012-Nov-11, at 17:25, andy pugh wrote:
> On 11 November 2012 22:04,
On 11 November 2012 22:04, N. Christopher Perry
wrote:
> After removing that line AXIS launched without incident, but when I enable
> the spindle (F9) and try adjusting the speed, ether by clicking the '+' / '-'
> buttons or pressing F11/F12 I only get ~1% & 100% PWM duty.
The Axis UI incremen
I started experimenting with spindle control and have found some odd behavior.
I added the example HAL content from section 2 of this page
http://linuxcnc.org/docs/html/examples/spindle.html.
Got a error when I launched AXIS. Removed this line from the HAL file, which
cleared the error: net
On 11 November 2012 20:00, Scott Hasse wrote:
> I plan on integrating the spindle control to be able to thread, but I am
> wondering if the Z pulse needs to be strictly once per chuck revolution
Yes, it must be once per spindle revolution. The system will always
start the threading pass on the i
All-
I'm starting in the process of converting a Sieg SC2518 CNC lathe to
LinuxCNC control. I'll be using Mesa hardware, 5i23+7i33+7i37 and have had
good experience with that in the past. Incomplete in-process documentation
is here:
http://code.google.com/p/sector67-sandbox/wiki/SiegCNCLathe
I
On 11/11/2012 11:28 AM, Gene Heskett wrote:
> Thanks Kent. I learned something today. Now if I could just get the
> hereafter figured out, I go into a room & then try to remember what it was
> that I'm hereafter.
I thought that's the room where we leave our round tuits.
Cheers.
On Sunday 11 November 2012 11:24:11 Kent A. Reed did opine:
> > More than once, I've had temporary trouble communicating with this
> > list from my gmail account. It was much worse with my old ISP-provided
> > account. It got blackballed which is why I had to switch to gmail.
> >
> > If your mess
On Sunday 11 November 2012 11:11:07 Kent A. Reed did opine:
> On 11/11/2012 1:14 AM, Gene Heskett wrote:
> > On Sunday 11 November 2012 01:12:07 Jon Elson did opine:
> >> On Sat, Nov 10, 2012 at 3:41 PM, Jason Burton
> >>
> >>
> >> wrote:
> The archive shows them as marked as spam.
> >>
>
On 11/11/2012 12:14 AM, Gene Heskett wrote:
> On Sunday 11 November 2012 01:12:07 Jon Elson did opine:
>
>>
>> If your sig line contains a URL, or there is one included in the message
>> body to reference
>> an external web page, that will often trigger the "marked as spam"
>> condition. (At
>> le
> More than once, I've had temporary trouble communicating with this
> list from my gmail account. It was much worse with my old ISP-provided
> account. It got blackballed which is why I had to switch to gmail.
>
> If your messages are being rejected by the list server, you should be
> receivin
On 11/11/2012 1:14 AM, Gene Heskett wrote:
> On Sunday 11 November 2012 01:12:07 Jon Elson did opine:
>
>> On Sat, Nov 10, 2012 at 3:41 PM, Jason Burton
>>
>> wrote:
The archive shows them as marked as spam.
>> If your sig line contains a URL, or there is one included in the message
>> body t
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