On Thursday 12 January 2017 22:06:23 Gene Heskett wrote:
[snip pages of history]
> I have it running fairly noise free today, and had no such problems.
> However it appears that I may have blown the #0 stepgen, as data is
> going in, its enabled, but nothing is coming out of other either pin
> 1-
ne Heskett
> >>> Reply-To: "Enhanced Machine Controller (EMC)"
> >>>
> >>> To: emc-users@lists.sourceforge.net
> >>> Subject: Re: [Emc-users] Two questions.
> >>>
> >>> On Wednesday 11 January 2017 13:34:50 Peter C. Wallac
> On 2017-01-11 18:18, Nicklas Karlsson wrote:
> > Yes it is way to slow, hardware counters are cheap and work well, do you
> > have them in you PI board?
>
> These are hardware counters sitting in the Mesa card.
I could read that in a message further down in the thread but at that point my
mes
On Wed, 11 Jan 2017, Gene Heskett wrote:
> Date: Wed, 11 Jan 2017 23:11:51 -0500
> From: Gene Heskett
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] Two questions.
>
> On Wednesday 11 Janu
t;>> Reply-To: "Enhanced Machine Controller (EMC)"
> >>>
> >>> To: "Enhanced Machine Controller (EMC)"
> >>> Subject: Re: [Emc-users] Two
> >>> questions.
> >>>
> >>> On 01/10/2017 10:45 PM, Gene H
On Wed, 11 Jan 2017, Gene Heskett wrote:
> Date: Wed, 11 Jan 2017 21:50:19 -0500
> From: Gene Heskett
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] Two questions.
>
> On Wednesday 11 Janu
On Wednesday 11 January 2017 13:34:50 Peter C. Wallace wrote:
> On Wed, 11 Jan 2017, Jon Elson wrote:
> > Date: Wed, 11 Jan 2017 10:36:18 -0600
> > From: Jon Elson
> > Reply-To: "Enhanced Machine Controller (EMC)"
> >
> > To: "Enhanced Machin
On 2017-01-11 18:18, Nicklas Karlsson wrote:
> Yes it is way to slow, hardware counters are cheap and work well, do you have
> them in you PI board?
These are hardware counters sitting in the Mesa card.
--
"In der Wissenschaft siegt nie eine neue Theorie,
nur ihre Gegner sterben nach und nach"
On Wednesday 11 January 2017 20:34:58 Gene Heskett wrote:
> On Wednesday 11 January 2017 12:18:54 Nicklas Karlsson wrote:
> > Yes it is way to slow, hardware counters are cheap and work well, do
> > you have them in you PI board?
>
> This is my first pi project,its a raspi 3b, and I am learning as
On Wednesday 11 January 2017 12:18:54 Nicklas Karlsson wrote:
> Yes it is way to slow, hardware counters are cheap and work well, do
> you have them in you PI board?
>
This is my first pi project,its a raspi 3b, and I am learning as I go
while I bring this machine to life.
ATM its sitting there,
http://electronicsam.com/images/matsuura/oscope.jpg
Part of what worked for us was we found a gear that had a profile close to the
test gear from the alero docs.
http://electronicsam.com/images/matsuura/sensors.jpg
Been working great
On Wed, 11 Jan 2017 16:03:10 -0500
Gene Heskett wrote:
>
On Wednesday 11 January 2017 11:36:18 Jon Elson wrote:
> On 01/10/2017 10:45 PM, Gene Heskett wrote:
> > On Tuesday 10 January 2017 23:02:28 Jon Elson wrote:
> >> On 01/10/2017 08:39 PM, Gene Heskett wrote:
> >>> But if I hook up the halscope, the apparent quadrature error is
> >>> worthless due t
On Wed, 11 Jan 2017, Jon Elson wrote:
> Date: Wed, 11 Jan 2017 10:36:18 -0600
> From: Jon Elson
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "Enhanced Machine Controller (EMC)"
> Subject: Re: [Emc-users] Two questions.
>
> On 01
Yes it is way to slow, hardware counters are cheap and work well, do you have
them in you PI board?
On Tue, 10 Jan 2017 22:02:28 -0600
Jon Elson wrote:
> On 01/10/2017 08:39 PM, Gene Heskett wrote:
> > But if I hook up the halscope, the apparent quadrature error is worthless
> > due to the 1KHz
On 01/10/2017 10:45 PM, Gene Heskett wrote:
> On Tuesday 10 January 2017 23:02:28 Jon Elson wrote:
>
>> On 01/10/2017 08:39 PM, Gene Heskett wrote:
>>> But if I hook up the halscope, the apparent quadrature error is
>>> worthless due to the 1KHz servo-loop timing limiting the bandwidth.
>> Well, th
On Wednesday 11 January 2017 00:29:01 Peter C. Wallace wrote:
> >> AFAIK there are no significant issues with HM2 encoder velocity
> >> estimation
> >>
> >> Heres a 100 Hz quadrature velocity trace:
> >>
> >> http://freeby.mesanet.com/100_Hz_quadrature_velocity.png
> >>
> >> Notice theres no disce
>>
>> AFAIK there are no significant issues with HM2 encoder velocity
>> estimation
>>
>> Heres a 100 Hz quadrature velocity trace:
>>
>> http://freeby.mesanet.com/100_Hz_quadrature_velocity.png
>>
>> Notice theres no discernible ripple in the velocity even though theres
>> considerable sample jitt
On Tuesday 10 January 2017 23:02:28 Jon Elson wrote:
> On 01/10/2017 08:39 PM, Gene Heskett wrote:
> > But if I hook up the halscope, the apparent quadrature error is
> > worthless due to the 1KHz servo-loop timing limiting the bandwidth.
>
> Well, that's why we use hardware encoder counters, as
>
On 01/10/2017 08:39 PM, Gene Heskett wrote:
> But if I hook up the halscope, the apparent quadrature error is worthless
> due to the 1KHz servo-loop timing limiting the bandwidth.
Well, that's why we use hardware encoder counters, as
sampling the quadrature at 1 KHz just isn't fast enough.
Jon
-
On Tue, 10 Jan 2017, Gene Heskett wrote:
> Date: Tue, 10 Jan 2017 21:39:09 -0500
> From: Gene Heskett
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: EMC
> Subject: [Emc-users] Two questions.
>
> Greetings all;
>
> I am up2date on the pi a/o this morning. So my first question is:
Take a look here
http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?TroubleShooting
John
On 2 Nov 2008 at 17:04, ygdan1001 wrote:
> hello!
>
> i did the latency test, the max jitter(base thread 25us) is 113511ns,
> it is over 100us, what should i do to improve them?
>
> then, i configurated the
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