On Sunday 02 May 2021 16:34:43 Jon Elson wrote:
> On 05/02/2021 01:00 PM, Chris Albertson wrote:
> > The below is exactly true. The problem is that PID is widely used
> > and PID is only "reactive" it can only deal with what has already
> > happened and the time lag is the source of oscillations.
A well-tuned PID with feedforward is capable of controlling a machine tool
without any issues. Sure there are better ways to implement a control, but
the results are not going to be significantly different on something as
simple as a machine tool. After the academic controls community played
arou
On 05/02/2021 01:00 PM, Chris Albertson wrote:
The below is exactly true. The problem is that PID is widely used and PID
is only "reactive" it can only deal with what has already happened and the
time lag is the source of oscillations.In the past, PID was the only
control option because we h
Den 2021-05-02 kl. 20:00, skrev Chris Albertson:
The below is exactly true. The problem is that PID is widely used and PID
is only "reactive" it can only deal with what has already happened and the
time lag is the source of oscillations.In the past, PID was the only
control option because we
The below is exactly true. The problem is that PID is widely used and PID
is only "reactive" it can only deal with what has already happened and the
time lag is the source of oscillations.In the past, PID was the only
control option because we had limited computing power. People are
starting
On Sunday 02 May 2021 09:29:09 dave engvall wrote:
> Hi Gene,
>
> Your comments on the servo-stepper are interesting. How well would
> they drive a BP sized mill?
I can't think of a GOOD reason, other than the mass of the knee would
probably need some belt reduction in the knee. 3NM is in the
