Hi Erik
I know you are up to eyeballs at the moment, but here is a really interesting
TED talk.
https://www.ted.com/talks/allan_savory_how_to_green_the_world_s_deserts_and_reverse_climate_change#t-1320745
Can this work in Aus ?
PS I'm originally from Africa, Zambia.
Thanking you
Wallace
On 10.03.19 02:40, andy pugh wrote:
> On Sat, 9 Mar 2019 at 17:55, Gene Heskett wrote:
>
> > Electricity could with the right push, be solar.
It is increasingly so in Australia, Gene. The nascent multi-billion push
to build pumped hydro storage, a decade earlier than thought likely, is
because
Three Mile Island's containment worked. Only a small amount of radioactive
steam got outside. What prolonged the incident was the location of an indicator
lamp. While the crew was clustered in one spot trying to figure out where all
the water they were pumping into the core was going, the light
On Saturday 09 March 2019 22:44:19 John Dammeyer wrote:
> > > On Sat, 9 Mar 2019 at 16:31, John Dammeyer
> > >
> >
> > wrote:
> > > > How does a simple test like:
> > > >
> > > > if (COOLANT_SWITCH == 1) PUMP1 = 1; else PUMP1 = 0;
> > > >
> > > > become abstracted through the HAL into the actual
Thanks Andy,
Busy studying (again) http://linuxcnc.org/docs/2.7/html/hal/basic-hal.html
John
> -Original Message-
> From: andy pugh [mailto:bodge...@gmail.com]
> Sent: March-09-19 7:55 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] LinuxCNC HAL contol flow
>
> On
On Sun, 10 Mar 2019 at 03:46, John Dammeyer wrote:
> But I don't think LinuxCNC nor MachineKit compiles this into C code. So how
> is this indirection used?
Each component reads its inputs and computes its outputs every thread
cycle (servo or base, depending on which one it is addf-ed to)
> > On Sat, 9 Mar 2019 at 16:31, John Dammeyer
> wrote:
> > > How does a simple test like:
> > >
> > > if (COOLANT_SWITCH == 1) PUMP1 = 1; else PUMP1 = 0;
> > >
> > > become abstracted through the HAL into the actual low level?
> >
> > Skipping all the other stuff that I can't answer
> >
> >
On Saturday 09 March 2019 21:40:10 andy pugh wrote:
> On Sat, 9 Mar 2019 at 17:55, Gene Heskett wrote:
> > Electricity could with the right push, be solar.
>
> I would rather it was fusion.
>
> it looks like we can get by at the current level with renewables. One
> day a couple of years ago the
On Saturday 09 March 2019 21:01:02 andy pugh wrote:
> On Sat, 9 Mar 2019 at 16:31, John Dammeyer
wrote:
> > How does a simple test like:
> >
> > if (COOLANT_SWITCH == 1) PUMP1 = 1; else PUMP1 = 0;
> >
> > become abstracted through the HAL into the actual low level?
>
> Skipping all the other
On Sat, 9 Mar 2019 at 17:55, Gene Heskett wrote:
> Electricity could with the right push, be solar.
I would rather it was fusion.
it looks like we can get by at the current level with renewables. One
day a couple of years ago the UK was > 50% renewable. (low load sunny
and windy day) We have
On Sat, 9 Mar 2019 at 16:31, John Dammeyer wrote:
> How does a simple test like:
>
> if (COOLANT_SWITCH == 1) PUMP1 = 1; else PUMP1 = 0;
>
> become abstracted through the HAL into the actual low level?
Skipping all the other stuff that I can't answer
In HAL that is "net some_signal
On 3/9/19 6:05 PM, Gene Heskett wrote:
> On Saturday 09 March 2019 15:45:57 bari wrote:
>
>> http://linux-sunxi.org/Mali
>>
>> This is good news if you want a totally open source system using many
>> of the Allwinner or Rockchop multicore ARM SOC's for Linuxcnc.
>>
>> Needs no funny binary blob
On Mar 9, 2019, at 3:13 PM, Chris Albertson wrote:
>
> I think Iceweasel is the default web browser.
Iceweasel chokes when I got to the Dropbox sight.
> When using older OS
> on low powered hardware, stick with defaults. But I think you can get
> Firefox to work but why?
>
>
> On Sat,
Gene,
Pine64 says Rock64 available LTS until 2022. So, the RockPro64 hasn’t replaced
it, just supplemented it. Even
the A64+ that I bought is still available, although there is an upgraded A64+
LTS available for $3 more, so why would you buy it. I still like the feature
set of the RockPro64, I
On 03/09/2019 12:05 PM, a k wrote:
hi
i am interesting in LCNC logic - how it work
for situation when LCNC command to axis to move 4" ,
and in case if axis moved only 3" ,for any reason like
1- axis hit obstacle;
2- power wire broke;
question-- how LCNC knows that need E-STOP?
If your servo
On Saturday 09 March 2019 16:49:34 Chris Albertson wrote:
> On Sat, Mar 9, 2019 at 12:39 PM Gene Heskett
wrote:
> > Thats doing pretty good, but you're in the realm of on-offs no one
> > else can fix too. I find thats the major objection to the pi, no one
> > knows how it works but me.
>
>
On Saturday 09 March 2019 15:45:57 bari wrote:
> http://linux-sunxi.org/Mali
>
> This is good news if you want a totally open source system using many
> of the Allwinner or Rockchop multicore ARM SOC's for Linuxcnc.
>
> Needs no funny binary blob like the Rpi for boot ot GPU.
>
> -Bari
>
Typical,
Greetings all;
I tore the new conact probe apart today to see if I could get a better
switching action out of it, polishing the oxide off both faces of its
single contact. Looks like its working well although I had to turn the
spacing down about 2 thou to make the led on a CiG rev 4 bob, the
On 3/8/19 11:55 PM, Chris Albertson wrote:
The easy way to program a "Blue Pill" is with the Arduino IDE.
...
The way you program this is to just connect them to the USB port like an
Arduino. But the key is
you need to first load a boot loader into the chip.
...
Which boot loader? I got my
> -Original Message-
> From: Chris Albertson [mailto:albertson.ch...@gmail.com]
> The STM32 has no problem with MHz level bit flipping. Reading or
> creating is MHz level is not hard.
> And the Pi3 has to be about the most well understood and documented
> machines on Earth. they
>
Hey Chris,
AFAIK, the Pi has better HDMI support compared to the Beagle but then it was
designed more for multimedia. The Beagle PRUs have the advantage that they
have access to some of the Beagle Processor RAM. That gives them a bit of an
advantage over the PI/32 bit hybrid using SPI.
>
>
On Sat, Mar 9, 2019 at 12:39 PM Gene Heskett wrote:
>
> Thats doing pretty good, but you're in the realm of on-offs no one else
> can fix too. I find thats the major objection to the pi, no one knows
> how it works but me.
>
Sorry, but I completely missed this comment?
"the realm of on-offs
http://linux-sunxi.org/Mali
This is good news if you want a totally open source system using many of
the Allwinner or Rockchop multicore ARM SOC's for Linuxcnc.
Needs no funny binary blob like the Rpi for boot ot GPU.
-Bari
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On Saturday 09 March 2019 14:12:43 Chris Albertson wrote:
> Gene,
>
> Yes, the Pi has slow I/O but this thread is about the "Blue Pill"
> board that costs $2.60 with free shipping.
>
> SO what I do is build a hybrid. The cheap little STM32F103 has many
> I/O pins that are robust and even 5
I think Iceweasel is the default web browser. When using older OS
on low powered hardware, stick with defaults. But I think you can get
Firefox to work but why?
On Sat, Mar 9, 2019 at 11:40 AM N. Christopher Perry
wrote:
>
>
> > On Mar 9, 2019, at 2:16 PM, Chris Albertson
> > wrote:
> >
> ... The PID loops work fine even
> using low-end STM32 chips
Yes these chips are really good.
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On Sat, 9 Mar 2019 10:59:15 -0800
"John Dammeyer" wrote:
> Hi Nicklas
>
> When CANopen first came out I was quite resistant to the protocol. But as
> I've used it more I've come to appreciate it's positives. A lot of COTS
> devices out there don't support the whole concept of everything
> On Mar 9, 2019, at 2:16 PM, Chris Albertson wrote:
>
> Use the web interface to DropBox. Then no software needs to be installed
What browser do you recommend? Chrome doesn’t seem to like Wheezy.
>
> If you aretrying to move files to the machine, use an NFS mount as it is
> very reliable
Go to stretch:(
Ron
> On Mar 9, 2019, at 10:48 AM, N. Christopher Perry wrote:
>
> I finally upgraded to 2.7 / Debian Wheezy and am trying to get Dropbox to
> work on it. When I install any of the packages from the Dropbox sight I
> ether get dependency problems or after starting it the
Use the web interface to DropBox. Then no software needs to be installed
If you aretrying to move files to the machine, use an NFS mount as it is
very reliable and 100X faster.
On Sat, Mar 9, 2019 at 10:50 AM N. Christopher Perry
wrote:
> I finally upgraded to 2.7 / Debian Wheezy and am
Gene,
Yes, the Pi has slow I/O but this thread is about the "Blue Pill" board
that costs $2.60 with free shipping.
SO what I do is build a hybrid. The cheap little STM32F103 has many I/O
pins that are robust and even 5 volt tolerent. I use the STM32 to connet
to the world and then SPI to
Hi Nicklas
When CANopen first came out I was quite resistant to the protocol. But as
I've used it more I've come to appreciate it's positives. A lot of COTS
devices out there don't support the whole concept of everything configurable
with files and on power up. But it doesn't really
THat is the neat thing about the STM32 range. There is the take $2 chip
on the "bluepill" and also the M4 chips with 5X faster clocks and FPUs
Here is a nice chart showing STM32 products sorted be speed, power and
size. None of these cost much mover $20.The larger ones are Arduino
Ono pin
I finally upgraded to 2.7 / Debian Wheezy and am trying to get Dropbox to work
on it. When I install any of the packages from the Dropbox sight I ether get
dependency problems or after starting it the task crashes. Anybody got
suggestions?
N. Christopher Perry
hi
i am interesting in LCNC logic - how it work
for situation when LCNC command to axis to move 4" ,
and in case if axis moved only 3" ,for any reason like
1- axis hit obstacle;
2- power wire broke;
question-- how LCNC knows that need E-STOP?
1- axis over load with power and because of that
> So CANopen is way different. Far more jitter. If you figure that the
> average 8 byte CAN message is really closer to 135 bits with bit stuffing and
> CRC each message at 1Mbps is 135 uS. That's only 7.4khz. Even if you used
> less data and managed to keep the bit stuffed messages under
On Saturday 09 March 2019 10:25:17 Nicklas Karlsson wrote:
> > Now if Trump would clean up the swamp like he promised, that will
> > accelerate, but his latest appointments have voted with his wallet,
> > not the long term good for this ball of rock.
>
> I thought he said "we should burn coal",
On Saturday 09 March 2019 08:50:19 grumpy--- via Emc-users wrote:
> On Sat, 9 Mar 2019, Gene Heskett wrote:
> > On Saturday 09 March 2019 07:53:05 Nicklas Karlsson wrote:
> >>> On Sat, 9 Mar 2019 at 11:59, Nicklas Karlsson
> >>>
> >>> wrote:
> I think CPU Cortex-M4 is a lot slower than
Oh and here's a link to a logic analyzer screen shot of CANbus Arbitration.
The two bottom modules are both trying to send at the same time. The top
module just receives and at the end of the message inserts the ACK bit. The
two bottom pairs arbitrate with the bottom module releasing the
No it's not but that's because MilCAN breaks a very fundamental rule of the CAN
bus protocol. A bit of background.
CSMA/CD used in the original coax based Ethernet stands for Carrier Sense,
Multiple Access with Collision Detection. Each node would listen on the bus
and if free would start to
On Sat, 9 Mar 2019 08:42:12 -0800
"John Dammeyer" wrote:
> There is a way to configure CANopen modules on power up. The CANopen master
> (or some other node delegated to do this) configures locations in a devices
> object dictionary. This is all done before the CANopen master changes the
>
On Sat, 9 Mar 2019 08:29:10 -0800
"John Dammeyer" wrote:
> I've been trying to decide the best forum to ask this question. Given the
> last few subjects on both STM32s and CANopen I'll start here and if not
> perhaps someone can point me to a better place or we can take it off line.
STM32s
There is a way to configure CANopen modules on power up. The CANopen master
(or some other node delegated to do this) configures locations in a devices
object dictionary. This is all done before the CANopen master changes the
system from PRE-OPERATIONAL to OPERATIONAL.
So a device can be
> ...
> For more hard real time applications the MilCAN protocol is more ideal
> because all the messages are synchronized to SYNC FLAG messages and the
> arbitration is limited to within a SYNC FLAG period avoiding jitter on
> messages. But there's pretty well nothing available commercially
On 03/09/2019 07:05 AM, Nicklas Karlsson wrote:
I will look at it, Machinekit use older version of Linuxcnc? or have caught up?
Machinekit has diverged from LinuxCNC a bit, but it is not
all that old. It has many of the important updates from a
few years ago, like the trajectory planner.
I've been trying to decide the best forum to ask this question. Given the last
few subjects on both STM32s and CANopen I'll start here and if not perhaps
someone can point me to a better place or we can take it off line.
I'm trying to learn a bit more about the Hardware Abstraction Layer
I've been working with CANopen for the last 20 years or so and with CAN from
1992. Microchip has a CANopen slave stack that you look at although it's
optimized for space and speed which means it's not optimized for readability.
CANopen isn't really great a real time due to the arbitration
> Now if Trump would clean up the swamp like he promised, that will
> accelerate, but his latest appointments have voted with his wallet, not
> the long term good for this ball of rock.
I thought he said "we should burn coal", they started to build electric cars
and coal is used to make
On Sat, 9 Mar 2019, Gene Heskett wrote:
On Saturday 09 March 2019 07:53:05 Nicklas Karlsson wrote:
On Sat, 9 Mar 2019 at 11:59, Nicklas Karlsson
wrote:
I think CPU Cortex-M4 is a lot slower than arduino
Really? That isn't my experience. Given that the M4 is running at
120MHz and the
There certainly seems to be some more to get. I have also done some tests with
Ethercat and ordinary Ethernet but no ordinary CAN. I also made a small
currently hard coded configuration utility and a partial implementation of CiA
309-3 as a gateway integrated in Linuxcnc.
Implementation of CiA
On Saturday 09 March 2019 07:53:05 Nicklas Karlsson wrote:
> > On Sat, 9 Mar 2019 at 11:59, Nicklas Karlsson
> >
> > wrote:
> > > I think CPU Cortex-M4 is a lot slower than arduino
> >
> > Really? That isn't my experience. Given that the M4 is running at
> > 120MHz and the Arduino is 8MHz and
On Saturday 09 March 2019 07:06:58 Erik Christiansen wrote:
> On 09.03.19 11:54, Nicklas Karlsson wrote:
> > You are mining coal in Australia maybe you would be better of turn
> > some of the combustible material to bio fuel?
>
> Spot on. The Black Saturday fires released the energy of 1500
>
On Sat, 9 Mar 2019 at 12:55, Nicklas Karlsson
wrote:
> > Really? That isn't my experience. Given that the M4 is running at
> > 120MHz and the Arduino is 8MHz and both are running the same code?
>
> No I got it wrong and mixed it with raspberry, I think.
Ah, right. I agree that it might be a but
I will look at it, Machinekit use older version of Linuxcnc? or have caught up?
> Several library options, some tests done by Luminize in Machinekit.
>
>
> https://github.com/machinekit/machinekit/issues/589
>
> https://github.com/luminize/canopen-machinekit
>
>
> China is weaning itself off thermal coal - I think they realise that
> tropical storms will give them a belting if they don't. India is lagging
> somewhat on the technology curve, and currently needs the dangerous cheap
> coal fix to power their economic and technology climb - regrettably.
China
> On Sat, 9 Mar 2019 at 11:59, Nicklas Karlsson
> wrote:
>
> > I think CPU Cortex-M4 is a lot slower than arduino
>
> Really? That isn't my experience. Given that the M4 is running at
> 120MHz and the Arduino is 8MHz and both are running the same code?
No I got it wrong and mixed it with
On Sat, 9 Mar 2019 at 11:59, Nicklas Karlsson
wrote:
> I think CPU Cortex-M4 is a lot slower than arduino
Really? That isn't my experience. Given that the M4 is running at
120MHz and the Arduino is 8MHz and both are running the same code?
--
atp
"A motorcycle is a bicycle with a pandemonium
On 09.03.19 11:54, Nicklas Karlsson wrote:
> You are mining coal in Australia maybe you would be better of turn
> some of the combustible material to bio fuel?
Spot on. The Black Saturday fires released the energy of 1500 Hiroshima
bombs. As an individual, I can do at least three things:
Several library options, some tests done by Luminize in Machinekit.
https://github.com/machinekit/machinekit/issues/589
https://github.com/luminize/canopen-machinekit
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> On Sat, 9 Mar 2019 at 05:48, Kirk Wallace wrote:
> >
> > I have used AVR chips to add features to LinuxCNC that where not easy to
> > do with a parallel port alone. Now I would like to take a try at using
> > one of these Blue Pills:
> > > https://www.ebay.com/itm/222676944274
>
> When I found
On Sat, 9 Mar 2019 at 05:48, Kirk Wallace wrote:
>
> I have used AVR chips to add features to LinuxCNC that where not easy to
> do with a parallel port alone. Now I would like to take a try at using
> one of these Blue Pills:
> > https://www.ebay.com/itm/222676944274
When I found that an actual
DS402 profile is common for motion control both on ordinary CAN networks and
CANopen over Ethercat. It would most certainly be of great use to have support
for it and other communication profiles like encoder in Linuxcnc.
I am currently looking on implementation on Ethercat there SOEM/SOES as
On Sat, 9 Mar 2019 21:39:43 +1100
Erik Christiansen wrote:
> On 09.03.19 22:06, Marshland Engineering wrote:
> > Hi Erik
> >
> > Where do you live? Excuse me for being so ignorant on current news but I
> > just
> > don't watch it any more. Too much baloney !!! I can only assume California
>
Ethercat messages may be quite large and by putting several sampled values in
one message sampling rate for some or all values may be higher than message
rate. This is usually called oversampling. Do anybody have an idea of
standardized message format in this case?
It should be done on
On 09.03.19 22:06, Marshland Engineering wrote:
> Hi Erik
>
> Where do you live? Excuse me for being so ignorant on current news but I just
> don't watch it any more. Too much baloney !!! I can only assume California or
> Aus.
Victoria, Australia. (Dandenong Ranges, on eastern fringe of
Hi Erik
Where do you live? Excuse me for being so ignorant on current news but I just
don't watch it any more. Too much baloney !!! I can only assume California or
Aus.
We suffered an earth quake here and I know I would rather have that than a
flood or fire. One thing about quakes is that once
On Saturday 09 March 2019 01:26:14 Greg Bentzinger via Emc-users wrote:
> I hope the link will survive the paste.
> https://www.automationdirect.com/adc/shopping/catalog/pneumatic_compon
>ents/flexible_pneumatic_tubing_-a-_hoses/straight_polyurethane_(pur)_tu
>bing/8_mm_(5-z-16_inch)
>
Thanks
On 07.03.19 14:52, Marshland Engineering wrote:
> Some of the parts I make
>
> http://www.marshland.co.nz/ftp/Misc/Parts.JPG
> http://www.marshland.co.nz/ftp/Misc/Machining.JPG
> http://www.marshland.co.nz/ftp/Misc/Pendant.JPG
Thanks for the parts porn - it's encouraging when the slab for my
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