On Wed, Apr 24, 2019 at 2:07 AM Gene Heskett wrote:
> On Wednesday 24 April 2019 03:42:00 andy pugh wrote:
>
> > On Wed, 24 Apr 2019 at 01:30, Gene Heskett
> wrote:
> > > Several, your personal config probably makes a far bigger difference
> > > than the actual version number of the kernel
I work with MDF a lot, and it's dimensional stability leaves much to be
desired. I would not want to use it for a table surface if I didn't have to.
It WILL warp, and sag with time, and changes in relative humidity can cause a
4x8 sheet to shrink or grow by as much as 1/8 inch. It is great
But I think that is allowed for in the design, when you tension the
traveller loop you pull the belt on one side in contact with one set
of fixed belt faces, and the other side of the pulley to the other set
of faces.
Huh, I didn't think of that. Yes, that would work. Availability of
longer
Jon,
You are making me feel old; just a fact of life. :-) IIRC I had the
first PPMC board set out the door. Once one got the connector tied down
that beastie was rock solid. The communication diagnostic was a life
saver. Easy way to confirm that the communication was working and it
On Wed, 24 Apr 2019 at 14:56, Gene Heskett wrote:
> The best sealer is shellac. 2 coats of "2 lb cut" sprayed on should do
> it.
The product I linked to is basically shellac in a can.
I used it for sealing MDF foundry patterns with very satisfactory results.
--
atp
"A motorcycle is a bicycle
On Wed, 24 Apr 2019 at 14:47, andy pugh wrote:
> When I get back the machine tonight I will report back with the last
> thing seen on the screen.
I tried the suggested new config, and this is what I get:
https://www.youtube.com/watch?v=gZw-nLf_XBg
Immediately after "started apache http server"
On Wednesday 24 April 2019 13:28:19 andy pugh wrote:
> https://hackaday.com/2019/04/24/radio-piracy-on-the-high-seas/
Chuckle, yes, those were the days. Brought on by the bbc's stiff upper
lip about music, which of course just had to be paid for by the
listeners.
Cheers, Gene Heskett
--
On Wed, 24 Apr 2019, Mark wrote:
Date: Wed, 24 Apr 2019 06:31:00 -0400
From: Mark
Reply-To: "Enhanced Machine Controller (EMC)"
To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] possibly good news for LinuxCNC
On 4/24/19 06:26, andy pugh wrote:
On Wed, 24 Apr 2019 at 11:09,
On Wednesday 24 April 2019 07:59:37 andy pugh wrote:
> On Wed, 24 Apr 2019 at 12:02, Les Newell
wrote:
> > One issue I see with off the shelf belts is that none of them have a
> > symmetrical profile. T section looks symmetrical but if you check
> > the drawings it isn't.
>
> T section is what
10m, 35mm width T5 for $60
https://www.aliexpress.com/item/10Meters-T5-open-ended-timing-belt-T5-30-W-30mm-T5-timing-belt-polyurethane-with-steel/2051875939.html
That's a good price. Two of those would do both sides of a 4M machine.
That is steel cored which is stiffer than Kevlar. Pity
But much easier damaged than the 6mm mdf.
'Foamex' type foam board should be tough enough. You would generally use
a sacrificial spoil board over it anyway.
Les
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The dev that spent years cleaning up and fixing the rtai.org to make it
work with LCNC and hosting it at https://github.com/NTULINUX/RTAI just
got tired of things. rtai.org would not give him credit and treated him
like a pest even though they heavily borrowed his fixes (even at
xenomai). Fortune
On 04/24/2019 08:45 AM, dave engvall wrote:
Jon,
You are making me feel old; just a fact of life. :-) IIRC
I had the first PPMC board set out the door. Once one got
the connector tied down that beastie was rock solid. The
communication diagnostic was a life saver. Easy way to
confirm that
What was the problem or error that occurred when building the RTAI
kernel using that repo?
We were just discussing how he made that as bullet proof as possible. We
are really interested in what problems occurred.
On 4/24/19 2:42 AM, andy pugh wrote:
> And there is the problem. I have never yet
On Wed, Apr 24, 2019 at 9:40 AM Peter C. Wallace wrote:
>
> > Okay, so latency is the biggest concern with preempt-rt then.
> >
> >
> > Mark
> >
>
>
> Yes, in my experience RTAI has better latency numbers especially on slower
> hardware. On fast hardware Preempt-RT and RTAI can have similar
Is there someplace where there is a good set of instructions or a tutorial
about building an RTAI kernel for Linuxcnc?
I have been contemplating taking a crack at trying to build one for a
particular Machine I have, because it uses an ISA card and I have not been able
to get any of the Linuxcnc
On Wed, 24 Apr 2019 at 14:36, Les Newell wrote:
> Huh, I didn't think of that. Yes, that would work. Availability of
> longer lengths at sane prices seems to be a bit of an issue though.
10m, 35mm width T5 for $60
On Wednesday 24 April 2019 05:18:49 Les Newell wrote:
> I really like that idea. Getting the slope and pocket dimensions just
> right would take some experimentation but if it works it would save a
> lot of hassle. I dunno if MDF would work as a top plate though. That
> stuff leaks like a sieve,
Andy,
As I understand it the PCI Address configuration space is handled mostly by the
BIOS and the CPU. The bus is enumerated by the BIOS and then configuration
takes place. A good lecture on this topic can be found at this video:
https://www.youtube.com/watch?v=ihgMcP2353I
HTH,
Joe
>
>
On 04/24/2019 02:53 AM, Gregg Eshelman via Emc-users wrote:
What about ECP mode, which requires DMA?
ECP mode is great for long, continuous transfers, like a
printer or scanner. For CNC motion control in the LinuxCNC
scheme, there will be pretty short transfers in each
direction, so the DMA
Thanks Bari
Thanks Alec
On 04/24/2019 10:07 PM, bari wrote:
The dev that spent years cleaning up and fixing the rtai.org to make
it work with LCNC and hosting it at https://github.com/NTULINUX/RTAI
just got tired of things. rtai.org would not give him credit and
treated him like a pest even
On Wed, 24 Apr 2019 at 14:30, bari wrote:
>
> What was the problem or error that occurred when building the RTAI
> kernel using that repo?
>
> We were just discussing how he made that as bullet proof as possible. We
> are really interested in what problems occurred.
The build seems to have
https://hackaday.com/2019/04/24/radio-piracy-on-the-high-seas/
--
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
On Wed, Apr 24, 2019 at 4:39 PM andy pugh wrote:
> On Wed, 24 Apr 2019 at 14:47, andy pugh wrote:
>
> > When I get back the machine tonight I will report back with the last
> > thing seen on the screen.
>
> I tried the suggested new config, and this is what I get:
>
and the movie was great
https://en.wikipedia.org/wiki/The_Boat_That_Rocked
On 04/25/2019 12:28 AM, andy pugh wrote:
https://hackaday.com/2019/04/24/radio-piracy-on-the-high-seas/
tomp
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On Wed, 24 Apr 2019 at 03:01, Joe Hildreth wrote:
> Thank you for follow up. I have them added to the list. One last question,
> are these all PCI cards?
Yes, all original PCI, not PCI-e or ISA.
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the
What about ECP mode, which requires DMA?
Originally the LPT port was output only, no ifs, and, buts, or inputs. Built to
the original specs there should be no way at all to push data into the port.
But naturally some manufacturers didn't stick 100% to the specs. Then various
hackers figured
On Wednesday 24 April 2019 03:42:00 andy pugh wrote:
> On Wed, 24 Apr 2019 at 01:30, Gene Heskett
wrote:
> > Several, your personal config probably makes a far bigger difference
> > than the actual version number of the kernel since you have to be
> > pretty well up on YOUR hardware to
I really like that idea. Getting the slope and pocket dimensions just
right would take some experimentation but if it works it would save a
lot of hassle. I dunno if MDF would work as a top plate though. That
stuff leaks like a sieve, especially if you cut through the outer skin.
I use 6mm MDF
On 24 Apr 2019, at 10:18, Les Newell wrote:
> I guess you could seal it afterwards with paint.
Yes, but having painted MDF before, it requires a particular sealer, then
several coats of paint, which is a bit of a pain. So its a method which is
lower in material cost than, say aluminium, but
On Tue, 23 Apr 2019 at 11:54, Rene Hopf via Emc-users
wrote:
> I dont understand whats wrong with stretch. I run all my machines with 64 bit
> stretch.
One thing wrong with Stretch is that it is not LTS whereas Jessie is.
Also, I have so far failed to make a working RTAI kernel for Stretch.
I
On 4/24/19 05:36, andy pugh wrote:
One thing wrong with Stretch is that it is not LTS whereas Jessie is.
Also, I have so far failed to make a working RTAI kernel for Stretch.
I think that we need at the very least an optional RTAI ISO for the
parallel port users even if we recommend the
On 4/24/19 06:26, andy pugh wrote:
On Wed, 24 Apr 2019 at 11:09, Mark wrote:
Does preempt-rt not play well with parport configurations? Not having
used a preempt-rt installation before, just curious.
It can work fine. In fact my current dev PC shows better preempt-rt
latency than I have eve
On Wed, 24 Apr 2019 at 12:02, Les Newell wrote:
> One issue I see with off the shelf belts is that none of them have a
> symmetrical profile. T section looks symmetrical but if you check the
> drawings it isn't.
T section is what Bell-Everman use.
The Specification document for T section is
On Wed, 24 Apr 2019 at 01:30, Gene Heskett wrote:
> Several, your personal config probably makes a far bigger difference than
> the actual version number of the kernel since you have to be pretty well
> up on YOUR hardware to re-configure the kernel you are about to build.
And there is the
On Wed, 24 Apr 2019 at 11:09, Mark wrote:
> Does preempt-rt not play well with parport configurations? Not having
> used a preempt-rt installation before, just curious.
It can work fine. In fact my current dev PC shows better preempt-rt
latency than I have eve seen with RTAI.
But that is an
Cutting your own racks, while doable is a heck of lot of work for the
lengths you are talking about, even if you make it in short sections. If
your time is worth even a fraction of minimum wage you would be better
off using off the shelf rack and pinions.
Here is how I think I would go about
On Wed, 24 Apr 2019 at 10:37, Marcus Bowman
wrote:
> Yes, but having painted MDF before, it requires a particular sealer,
https://www.screwfix.com/p/zinsser-b-i-n-shellac-based-primer-sealer-1ltr/29661
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the
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