Den 2021-05-04 kl. 01:22, skrev Jon Elson:
On 05/03/2021 12:03 PM, Nicklas SB Karlsson wrote:
Den 2021-05-03 kl. 17:42, skrev Jon Elson:
Assuming machine is lubricated there shear force in oil/grease depend
on speed so it might actually be rather close to viscous friction and
hence rather
On 05/03/2021 07:35 PM, Gene Heskett wrote:
Thanks Jon, I hadn't thought of it in that exact manner, and it makes
perfect sense. So I'll likely give it a shot in the next few days.
Does there seem to be a golden ratio that works well consistently?
Some people seem to have a feel for the
On Monday 03 May 2021 19:25:48 Jon Elson wrote:
> On 05/03/2021 02:34 PM, Gene Heskett wrote:
> > Friction will of coarse vary, but assume the amplitude of
> > the jitter is constantly reset to zero by a passing edge
> > from the encoder, but it times out in 2 millisecs. Leaving
> > the pwmgen
On 05/03/2021 02:34 PM, Gene Heskett wrote:
Friction will of coarse vary, but assume the amplitude of
the jitter is constantly reset to zero by a passing edge
from the encoder, but it times out in 2 millisecs. Leaving
the pwmgen outputing a very low duration pulse in one
direction or the
On 05/03/2021 12:03 PM, Nicklas SB Karlsson wrote:
Den 2021-05-03 kl. 17:42, skrev Jon Elson:
Assuming machine is lubricated there shear force in
oil/grease depend on speed so it might actually be rather
close to viscous friction and hence rather close to
linear. Then an oil/grease pump is
On Monday 03 May 2021 11:42:54 Jon Elson wrote:
> On 05/03/2021 02:57 AM, Gene Heskett wrote:
> > More specifically, which of the F's is suitable for forcing a closer
> > to null settling point when there is considerable friction in the
> > system?
>
> That's the problem! Friction is nonlinear,
Den 2021-05-03 kl. 17:42, skrev Jon Elson:
On 05/03/2021 02:57 AM, Gene Heskett wrote:
More specifically, which of the F's is suitable for forcing a closer to
null settling point when there is considerable friction in the system?
That's the problem! Friction is nonlinear, and it hurts during
On 05/03/2021 02:57 AM, Gene Heskett wrote:
More specifically, which of the F's is suitable for forcing a closer to
null settling point when there is considerable friction in the system?
That's the problem! Friction is nonlinear, and it hurts
during acceleration but HELPS during deceleration.
On Sunday 02 May 2021 21:02:29 Gene Heskett wrote:
> 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
