Couple of links
This is me and my machine.
https://www.youtube.com/watch?v=35tHYaDUmZQ
https://www.youtube.com/watch?v=Nn1bJ3YAQdI
thanks
Stuart
On Sat, Nov 23, 2019 at 10:35 PM Stuart Stevenson wrote:
> Raoul,
> What did you compare? Why did you start this project? Lead me through your
>
Raoul,
What did you compare? Why did you start this project? Lead me through your
thought process.
I have the most interest in feedrate modification but if the part quality
can be improved and increase the feed then we have two of the three.
Faster - check
Better - check
Cheaper - ?
Thanks in
>
> I told you the fix before, and I will tell you again. Intel and nVIDIA DRM
> KMS drivers have been disabled in kernel Kconfig.
> To run at 1080p, 4K, or whatever you want, use xf86-video-fbdev:
>
yeah, thanks. just wanted to answer to andy what happens if i boot the rtai
kernel. i myself ok
I told you the fix before, and I will tell you again. Intel and nVIDIA DRM KMS
drivers have been disabled in kernel Kconfig.
To run at 1080p, 4K, or whatever you want, use xf86-video-fbdev:
xorg.conf:
Section "Device"
Identifier "Screen" # This can be anything [A-Z] [0-9]
Driver
I should mention, I've been running Radeon cards with IPIPE/RTAI for years and
never had any trouble by the way. Too many complaints and personal experience
with Intel and nvidia drivers lead to the decision to pull them out.
Alec
___
Emc-developers
Greetings all;
PMDC motors such as treadmill and that supplied on the G0704, can be
reversed at quite amazing speeds, but do need some filtering of sorts to
get that best turnaround speed.
In TV broadcasting back in the analog days we had several signals which
monitored the performance of our
>
> > it boots, hangs for a while with a blank screen before X logins is
> > displayed. the resolution is set to 1024x768 instead of the panel's
> > native 1440x900. hangs on shutdown waiting for a few minutes for
> > stopped tasks. otherwise seems to be ok.
> Actual "minutes" or just a slightly
dear Stuart,
comparative examples between OpenCN and what, LinuxCNC, commercial CNC's ?
And comparing what, machining time, surface quality ?
Not so easy, but one thing is clear : the jerk control is absolutely necessary
for a CNC, otherwise for a given quality of the machined part you need to
On Fri, 22 Nov 2019 23:50:39 +
Herzog Raoul wrote:
> dear Gene,
>
> I agree with you, OpenCN is not meant for stepper motor applications, since
> there is no feedback control using encoders.
There are Ethercat nodes for stepper modes available to buy.
As Ethercat is a standard and rather
Hi Andrew,
yes, the double feedback loop (from rotary and linear encoders) are completely
in the TRIAMEC drives.
At the moment, OpenCN only supports EtherCat, no support for MESA boards.
The "micro5" is commercialized (MECATIS and KUMMER) with a BECKHOFF (ISG) CNC
and TRIAMEC drives.
best
Dear Raoul,
Of course I understand that. Why would you need the new planner otherwise? )
But double feedback loop is completely in the drives, right?
OpenCN seems very interesting, but can it support another protocols besides
EtherCAT?
Does it still support MESA boards?
Those micro3 / micro5
Would it be possible to post some comparative example pictures/videos so I
can better understand what you are fixing?
Thanks
Stuart
On Sat, Nov 23, 2019, 5:43 AM Herzog Raoul wrote:
> dear Andrew,
>
> The RS274 interpreter is still the original, important concepts like HAL,
> pins etc, are
On Sat, 23 Nov 2019 11:41:23 +
Herzog Raoul wrote:
> dear Andrew,
>
> The RS274 interpreter is still the original, important concepts like HAL,
> pins etc, are still there.
>
> Even with high end drives, you cannot simply stream position data, the
> reference signals for each drive
On Sat, 23 Nov 2019 10:15:53 +
Herzog Raoul wrote:
> dear Nicklas,
>
> there is no feedback control loop in OpenCN.
> Feedback and Feedforward is only inside the drives.
Agree, OpenCN only need to know the limitations. This could also be the case
for LinuxCNC depending on configuration
dear Andrew,
The RS274 interpreter is still the original, important concepts like HAL, pins
etc, are still there.
Even with high end drives, you cannot simply stream position data, the
reference signals for each drive *must* respect the physical constraints
regarding max jerk, max
Just wondering what's left from LinuxCNC there )
With such intelligent servo drives you just have to stream the position
data (you made the new TP for that!).
Do you use Ethercat I/O too?
сб, 23 лист. 2019 о 12:17 Herzog Raoul пише:
> dear Nicklas,
>
> there is no feedback control loop in
On Sat, 23 Nov 2019 at 01:21, Dmitry Yurtaev wrote:
> it boots, hangs for a while with a blank screen before X logins is
> displayed. the resolution is set to 1024x768 instead of the panel's
> native 1440x900. hangs on shutdown waiting for a few minutes for
> stopped tasks. otherwise seems to be
dear Nicklas,
there is no feedback control loop in OpenCN.
Feedback and Feedforward is only inside the drives.
We use TSD80E drives from the manufacturer Triamec
(https://www.triamec.com/de/triamec-servo-drives.html).
The sampling frequency for the PWM, current control loop and position control
> dear Robert,
>
> thanks for your positive feedback !
>
> I'll try to answer most of your questions :
>
> 1) licence
> Good point !
> We have here a campus licence for the whole Matlab suite, as most
> universities have.
> I asked my Mathworks contact person whether the generated C code is
>
> dear Nicklas,
>
> of course, feedforwards are utilized (and well parametrized) in the *drives*,
> otherwise excessive tracking errors appear.
>
> But this is done in the *drive*, *not* in OpenCN.
> OpenCN calculates physically realizable setpoint values (according to
> "optimal control
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