On 26.03.19 07:10, Alan Condit wrote:
> Erik,
>
> Banggood is only one of the places selling the rock64. Look at Pine64’s
> website and google “rock64 stretch”
> There is an Armbian Stretch image available for download.
>
> Ala
Many thanks, Alan. That price is unbelievable.
I guess the "4K60P
On 03/26/2019 05:43 PM, Gene Heskett wrote:
On Tuesday 26 March 2019 11:06:16 andy pugh wrote:
Something that you might have missed is a bunch of new GUIs that are
being developed:
https://youtu.be/mb0nZEqhsS8
The ATC screen is super-fancy:
https://youtu.be/6Xxjk1UnpnI
Then Kurt and Jon are
On 26.03.19 10:38, Chris Albertson wrote:
> A very basic question, unlike the hards ones being discussed here but,
> important I think.
>
> How are people handling switch debouncing on home and limit switches?
>
> Always in the past, I have treated the microswitch is a SPST device that is
>
On Tuesday 26 March 2019 14:20:58 Bruce Layne wrote:
> On 3/26/19 1:38 PM, Chris Albertson wrote:
> > Yes, I know a switch can be de-bounced in software but this
> > introduces latency as the software has to keep checking the state of
> > the switch. Reduced latency very much increases the
On Tuesday 26 March 2019 13:38:32 Chris Albertson wrote:
> A very basic question, unlike the hards ones being discussed here but,
> important I think.
>
> How are people handling switch debouncing on home and limit switches?
>
We have a debounce module you can put in series with the swtches
On Tuesday 26 March 2019 11:06:16 andy pugh wrote:
> Something that you might have missed is a bunch of new GUIs that are
> being developed:
>
> https://youtu.be/mb0nZEqhsS8
> The ATC screen is super-fancy:
> https://youtu.be/6Xxjk1UnpnI
>
> Then Kurt and Jon are doing things with QT:
>
The limitation on a free or non-edu OnShape account is that you can’t make
private documents.
There’s also an iOS/Android app available for it. This works great as a mobile
reference to your drawings. The iPad with Apple Pencil and OnShape is currently
my favorite way to draw stuff.
It’s a
On Tuesday 26 March 2019 10:55:45 Peter C. Wallace wrote:
> On Tue, 26 Mar 2019, Gene Heskett wrote:
> > Date: Tue, 26 Mar 2019 08:03:17 -0400
> > From: Gene Heskett
> > Reply-To: "Enhanced Machine Controller (EMC)"
> >
> > To: emc-users@lists.sourceforge.net
> > Subject: Re: [Emc-users]
On Tuesday 26 March 2019 09:01:29 andy pugh wrote:
> On Tue, 26 Mar 2019 at 12:37, Gene Heskett
wrote:
> > > This is why I was suggesting a 180 degree home switch target
> > > wheel.
> >
> > I must have got stoned and missed that. ;-) 'splain plz..
>
> You didn't miss it, you even discussed it:
On 3/26/19 1:38 PM, Chris Albertson wrote:
> Yes, I know a switch can be de-bounced in software but this introduces
> latency as the software has to keep checking the state of the switch.
> Reduced latency very much increases the accuracy of the microswitch.
Like Steve Ciarcia said in Byte
A very basic question, unlike the hards ones being discussed here but,
important I think.
How are people handling switch debouncing on home and limit switches?
Always in the past, I have treated the microswitch is a SPST device that is
either open or closed.
The common terminal is pulled up to
You don't need to do the motion planning on the uP, just the execution of
the plan. Planning means deciding what point to go to and at what speed
and what acceleration. Execution of the plan means updating the setpoints
of a few servo loops.
Planning is best done on the largest computer your
The problem is not with Linux itself but with the way the programs are
distributed. Almost all software depends on a LOT of external libraries
and these, in turn, depend on others. And worse they depend on some
version of the library. Linux distributions come with many of these
libraries
On Tue, 26 Mar 2019, andy pugh wrote:
Date: Tue, 26 Mar 2019 11:19:19 +
From: andy pugh
Reply-To: "Enhanced Machine Controller (EMC)"
To: "Enhanced Machine Controller (EMC)"
Subject: Re: [Emc-users] Rock64 pre-orders on Banggood.
On Tue, 26 Mar 2019 at 06:35, Chris Albertson wrote:
Something that you might have missed is a bunch of new GUIs that are
being developed:
https://youtu.be/mb0nZEqhsS8
The ATC screen is super-fancy:
https://youtu.be/6Xxjk1UnpnI
Then Kurt and Jon are doing things with QT:
https://qtpyvcp.kcjengr.com/showcase/index.html
Something Fanuc-inspired:
On Tue, 26 Mar 2019, Gene Heskett wrote:
Date: Tue, 26 Mar 2019 08:03:17 -0400
From: Gene Heskett
Reply-To: "Enhanced Machine Controller (EMC)"
To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] Rock64 pre-orders on Banggood.
On Tuesday 26 March 2019 07:19:19 andy pugh wrote:
Erik,
Banggood is only one of the places selling the rock64. Look at Pine64’s
website and google “rock64 stretch”
There is an Armbian Stretch image available for download.
Ala
From: Erik Christiansen
> To: emc-users@lists.sourceforge.net
> Cc:
> Bcc:
> Date: Tue, 26 Mar 2019 17:21:30 +1100
>
On Tue, 26 Mar 2019 at 12:37, Gene Heskett wrote:
> > This is why I was suggesting a 180 degree home switch target wheel.
>
> I must have got stoned and missed that. ;-) 'splain plz..
You didn't miss it, you even discussed it:
"Ahh, white turn one way, black the other. But once the boundary is
On Tue, 26 Mar 2019 at 11:00, Roland Jollivet wrote:
> I find that the smell of some coolants make me feel really nauseous,
I like that smell. It reminds me of happy times with my dad in his workshop.
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the
On Tuesday 26 March 2019 08:08:02 andy pugh wrote:
> On Tue, 26 Mar 2019 at 12:05, Gene Heskett
wrote:
> > I've not more than thought of it, but have wondered if it would be
> > possible to set up a 10 kilohertz base thread that accessed the
> > parport, while leaving the 1 kilohertz stuff on
On Tue, 26 Mar 2019 at 12:05, Gene Heskett wrote:
> I've not more than though of it, but have wondered if it would be
> possible to set up a 10 kilohertz base thread that accessed the parport,
> while leaving the 1 kilohertz stuff on the 7i76?
Yes, but it wouldn't necessarily help. LinuxCNC
I had a similar problem, coughing away as soon as I had worked on my PC
for some time. Moving my laser printers to the adjacent room solved the
problem. Besides, getting up and moving a few steps now and then in
order to fetch papers from the printer next room helped my back pains, too.
Peter
On Tuesday 26 March 2019 07:19:19 andy pugh wrote:
> On Tue, 26 Mar 2019 at 06:35, Chris Albertson
wrote:
> > The loops do need data. They need a target position or a target
> > velocity. These targets are sent across an SPI (or I2C or Ethernet
> > or,..) interface from a Linux machine. But
On Tue, 26 Mar 2019 at 04:11, Rafael Skodlar wrote:
> OK, so if you are a software developer, I respect your trade. I assume
> you are making money. Great. If you ported that program to Linux then
> perhaps you could sell to different crowd and brag about it also.
He is the author of SheetCAM.
On Tue, 26 Mar 2019 at 06:35, Chris Albertson wrote:
> The loops do need data. They need a target position or a target velocity.
> These targets are sent across an SPI (or I2C or Ethernet or,..) interface
> from a Linux machine. But you MUST de-couple the timing. Linux can not
> be feeding
On Tue, 26 Mar 2019 at 03:41, Chris Albertson wrote:
> Yes, you have to patch Kernels. I think this is the #1 weakness of
> Linux CNC. It would be good to eliminate the need for a real-time Kernal.
>How? Move the real-time parts to hardware such as the uP, PRU or Mesa
> FPGA.
The Mesa
> I tried a few coolants for flood. First was Tri-Cool, which
> constantly grew stuff and was a real problem. Then, I got a
> gallon of Encool-9 concentrate, which was recommended by
> them for the mix of materials and work I do. It can sit for
> MONTHS before it shows growth very slightly.
> I
On Mon, Mar 25, 2019 at 9:11 PM Rafael Skodlar wrote:
> On 3/25/19 4:01 AM, Les Newell wrote:
> >
> >> Is this a mailing list about LinuxCNC or windows crap?!
>
Both, I think.It is pretty clear that to use CNC you need some kind of
design software (or stay with very simple designs that can
To elaborate my idea (no I did not invent this)
the servo loop and pulse generation and all other "hard" real time is run
on a 32-bit uP. The lops will run with nearly zero jitter as the timing is
control from a divide down crystal clock.The loop does not do a command
then say "I'm done".
On 26.03.19 02:08, andy pugh wrote:
> Most of them seem to need a kernel specifically patched for the
> hardware, though. So you need (for example) the Udoo-patched kernel
> then need to apply Xenomia / RTAI / Preempt-RT on top of that.
> And often the fit is not exact.
Thought I'd order one,
On Mon, Mar 25, 2019 at 3:54 PM andy pugh wrote:
> On Mon, 25 Mar 2019 at 22:18, Rafael Skodlar wrote:
>
> > PCs were NEVER intended to be used for CNC yet some of you out there use
> > it for that purpose.
>
> That is the _entire_ raison d'etre of LinuxCNC.
>
> The point of the EMC project was
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