Envoyé : lundi, 25 novembre 2019 02:42
À : EMC developers
Objet : Re: [Emc-developers] announcement OpenCN, a new fork of LinuxCNC -->
Precalculations
Raoul,
Paragraph (1)
I think it would be necessary to empirically collect the dynamic behavior of
each machine component on each machine t
ds,
>
> Raoul
>
>
> -Message d'origine-
> De : Stuart Stevenson
> Envoyé : dimanche 24 novembre 2019 05:36
> À : EMC developers
> Objet : Re: [Emc-developers] announcement OpenCN, a new fork of LinuxCNC
> --> Precalculations
>
> Raoul,
> What did
-
De : Stuart Stevenson
Envoyé : dimanche 24 novembre 2019 05:36
À : EMC developers
Objet : Re: [Emc-developers] announcement OpenCN, a new fork of LinuxCNC -->
Precalculations
Raoul,
What did you compare? Why did you start this project? Lead me through your
thought process.
I have the m
Important for understanding : there is NOT ANY trajectory planning
>> > INSIDE the drive, only feedback loops and feedforward.
>> >
>> > best regards,
>> >
>> > Raoul
>> >
>> > -Message d'origine-
>> > De : Andr
d.
> >
> > best regards,
> >
> > Raoul
> >
> > -----Message d'origine-
> > De : Andrew
> > Envoyé : samedi 23 novembre 2019 12:24 À : EMC developers
> >
> > Objet : Re: [Emc-developers] announcement OpenCN, a new fork of
> > Lin
to lower
really a lot feedrate.
best regards,
Raoul
-Message d'origine-
De : Stuart Stevenson
Envoyé : samedi 23 novembre 2019 16:51
À : EMC developers
Objet : Re: [Emc-developers] announcement OpenCN, a new fork of LinuxCNC -->
Precalculations
Would it be possible to post s
es.
best regards,
Raoul
-Message d'origine-
De : Andrew
Envoyé : samedi 23 novembre 2019 16:51
À : EMC developers
Objet : Re: [Emc-developers] announcement OpenCN, a new fork of LinuxCNC -->
Precalculations
Dear Raoul,
Of course I understand that. Why would you need the new plan
quot;, maybe a misleading term since
> > there are no jumps in acceleration.
> > Time optimality automatically leads to this "Bangbang" property.
> >
> > best regards,
> >
> > Raoul
> >
> > -Message d'origine-
> > De : N
> > E
ANY trajectory planning INSIDE
> the drive, only feedback loops and feedforward.
>
> best regards,
>
> Raoul
>
> -Message d'origine-
> De : Andrew
> Envoyé : samedi 23 novembre 2019 12:24
> À : EMC developers
> Objet : Re: [Emc-developers] announcement OpenCN,
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
s "Bangbang" property.
>
> best regards,
>
> Raoul
>
> -Message d'origine-
> De : N
> Envoyé : samedi 23 novembre 2019 10:51 À : EMC developers
>
> Objet : Re: [Emc-developers] announcement OpenCN, a new fork of
> LinuxCNC
> --> Precalculations
&
oul
>
> -Message d'origine-
> De : N
> Envoyé : samedi 23 novembre 2019 10:51
> À : EMC developers
> Objet : Re: [Emc-developers] announcement OpenCN, a new fork of LinuxCNC
> --> Precalculations
>
> > dear Nicklas,
> >
> > of course, feedforwar
voyé : samedi 23 novembre 2019 10:51
À : EMC developers
Objet : Re: [Emc-developers] announcement OpenCN, a new fork of LinuxCNC -->
Precalculations
> dear Nicklas,
>
> of course, feedforwards are utilized (and well parametrized) in the *drives*,
> otherwise excessive
> 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
re 2019 23:46
À : EMC developers
Objet : Re: [Emc-developers] announcement OpenCN, a new fork of LinuxCNC -->
Precalculations
On Fri, 22 Nov 2019 21:59:33 +
Herzog Raoul wrote:
> dear Andrew,
>
> thanks for your positive feedback.
>
> There were many reasons for u
On Fri, 22 Nov 2019 21:59:33 +
Herzog Raoul wrote:
> dear Andrew,
>
> thanks for your positive feedback.
>
> There were many reasons for us to develop OpenCN :
>
> 1) of course scientific curiosity ... I'm working for ~8 years in this field
>
> 2) but, more important, I had and have
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