22 квітня 2012 р. 22:34 Peter C. Wallace написав:
> When the encoder velocity estimation is used it is not as affected by
> encoder resolution as the normal D/DT of position. This is because the
> velocty estimation measures counts/delta_time rather than count per servo
> period. the delta_time b
25 квітня 2012 р. 03:34 Leonardo Marsaglia
написав:
> Thanks for the information Claude. I'm enough confident to give it a try,
> so I think this week or the next one I'm going to purchase one, and when it
> finally arrives here and I test it I'm going to post the good news.
>
And how much are th
> I am struggling with the file selector button Glade widget.
>
> I don't seem to be able to figure out how to extract the selected
> filename as a string into code, or how to set up a file filter.
>
> Has anyone managed to do that?
>
> I have a feeling I might have to attach a file select di
On 4/24/2012 8:23 PM, andy pugh wrote:
> I am struggling with the file selector button Glade widget.
>
> I don't seem to be able to figure out how to extract the selected
> filename as a string into code, or how to set up a file filter.
>
> Has anyone managed to do that?
>
> I have a feeling I migh
On 4/24/2012 8:23 PM, andy pugh wrote:
> I am struggling with the file selector button Glade widget.
>
> I don't seem to be able to figure out how to extract the selected
> filename as a string into code, or how to set up a file filter.
>
> Has anyone managed to do that?
>
> I have a feeling I migh
To expand on Peter's remarks:
The open loop gain of a system is the product (GH) of the forward
(G) and feedback (H) transfer functions.
You can alter static scaling terms without changing the
P,I,D values as long as the loop gain (GH) _product_ is the same.
The encoder_scale (units/encoder_cou
Thanks for the information Claude. I'm enough confident to give it a try,
so I think this week or the next one I'm going to purchase one, and when it
finally arrives here and I test it I'm going to post the good news.
El 24 de abril de 2012 10:50, Claude Froidevaux escribió:
> Hi,
>
> I never us
I am struggling with the file selector button Glade widget.
I don't seem to be able to figure out how to extract the selected
filename as a string into code, or how to set up a file filter.
Has anyone managed to do that?
I have a feeling I might have to attach a file select dialogue, and
get the
Am 24.04.2012 um 21:00 schrieb andy pugh:
> On 24 April 2012 18:53, Michael Haberler wrote:
>> I decided to ignore the conventional wisdom that it cannot be done, and gave
>> it a try.
>
> To be fair, it was only ever described as "hard" not "impossible" and
yes, but 'impossible' sounded infi
On 24 April 2012 21:04, Viesturs Lācis wrote:
> Just a little note on the retracting and returning moves - I think
> that it needs to move the tool out of material along the central axis
> of tool (usually that is parallel to Z, but for 5 axis situations it
> would differ)
I think the code suppo
2012/4/24 Michael Haberler :
> I decided to ignore the conventional wisdom that it cannot be done, and gave
> it a try.
>
> here are some prelimary results:
>
> http://www.youtube.com/watch?v=yJPLJGdiQWw&feature=plcp&context=C494ebbdVDvjVQa1PpcFOUhIqfm3XcEJtse1eR8fqk7sO0WffoNSU%3D
>
> Obvious use:
2012/4/24 Ralph Stirling :
> Exactly, Sam! In fact, I would like to see it modular in such a
> way as allowing more than one interpreter and motion generator
> going at the same time (addf motion-controller.0, addf motion-controller.1
> etc).
> This would make it possible to run multispindle/mult
On 24 April 2012 18:53, Michael Haberler wrote:
> I decided to ignore the conventional wisdom that it cannot be done, and gave
> it a try.
To be fair, it was only ever described as "hard" not "impossible" and
I think you have made some changes to the underlying structure?
Anyway, it looks good,
On Tuesday, April 24, 2012 02:20:49 PM Michael Haberler did opine:
> I decided to ignore the conventional wisdom that it cannot be done, and
> gave it a try.
>
> here are some prelimary results:
>
> http://www.youtube.com/watch?v=yJPLJGdiQWw&feature=plcp&context=C494ebbd
> VDvjVQa1PpcFOUhIqfm3Xc
Exactly, Sam! In fact, I would like to see it modular in such a
way as allowing more than one interpreter and motion generator
going at the same time (addf motion-controller.0, addf motion-controller.1 etc).
This would make it possible to run multispindle/multiturret lathes, and
pick & place machi
I like your attitude!
On Apr 24, 2012 12:56 PM, "Michael Haberler" wrote:
> I decided to ignore the conventional wisdom that it cannot be done, and
> gave it a try.
>
> here are some prelimary results:
>
>
> http://www.youtube.com/watch?v=yJPLJGdiQWw&feature=plcp&context=C494ebbdVDvjVQa1PpcFOUhIq
I decided to ignore the conventional wisdom that it cannot be done, and gave it
a try.
here are some prelimary results:
http://www.youtube.com/watch?v=yJPLJGdiQWw&feature=plcp&context=C494ebbdVDvjVQa1PpcFOUhIqfm3XcEJtse1eR8fqk7sO0WffoNSU%3D
Obvious use: retract tool, clean swarf, continue cutt
Strictly from an outside observer.. I would thing that modularizing (is
that even a word) linuxcnc so like hal (that can run by itself) each
'module' could be replaced with a different one. So - say someone
writes a different g-code parser.. or a different TP.. or whatever.
These could be
On Tue, 24 Apr 2012, Eric Johnson wrote:
> Date: Tue, 24 Apr 2012 07:14:10 -0400
> From: Eric Johnson
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: emc-users@lists.sourceforge.net
> Subject: [Emc-users] Tuning low resolution axis
>
> Hi all,
>
> I have a servo motor axis configure
Eric Johnson wrote:
> Hi all,
>
> I have a servo motor axis configured angular with a relatively low
> resolution encoder / gear ratio. One revolution of the shaft is 19600
> counts, or 54. counts per degree. I was having a very difficult time
> tuning it at 54 counts per degree, so I set th
S curve accels are very important on fast machines and very desirable on
high inertia machines at lower speeds.
>>Are people happy with the GUI/ screen options that are starting
to open up?
Yes, Extremely happy! :-)
GladeVCP, Gscreen, and Touchy are a huge steps forward.
Dave
On 4/23/2012
Hi,
Time to give my point of view (really interesting threat).
IMHO, stopping inside the next code block is absolutely not needed. What
is needed, is that all processed lookahead line are stocked inside the
real-time part (EMC) and not in Axis or any other application. (EMC will
eat as many li
Hi,
I never used them, but a respectable seller in europe sell them for
typical CN use:
http://www.kinco.cn/html/en/products/Servo&Stepper/Servo&Stepper_overview/
Again, I never use them, so, other advice would be welcome.
Le 21.04.2012 03:20, Leonardo Marsaglia a écrit :
> Sorry, I meant th
Thanks Andy and Dewey. That appears to fix the problem.
Les
On 23/04/2012 22:27, Dewey Garrett wrote:
>
> A work around for this (or at least a similar problem occuring with Ubuntu
> 10.04 and tk8.5) was incorporated in axis (v2.5 or later):
>
> http://git.linuxcnc.org/gitweb?p=linuxcnc.git;a=co
Hi all,
I have a servo motor axis configured angular with a relatively low
resolution encoder / gear ratio. One revolution of the shaft is 19600
counts, or 54. counts per degree. I was having a very difficult time
tuning it at 54 counts per degree, so I set the counts per engineering
unit
On 24 April 2012 11:30, Les Newell wrote:
> An easily customizable GUI would be nice.
Have a look at gscreen, which is a UI written by Chris Morley entirely in Glade
http://www.linuxcnc.org/index.php/english/component/kunena/?func=view&catid=41&id=17806&limit=6&start=24#17895
I haven't tried it
An easily customizable GUI would be nice. You very often need to be able
to add or remove GUI features depending on the machine. This and jog
while paused are the main reasons why I still use Mach on my mill.
Les
> Of course I'm thinking on the developers side, what do integrators
> wish for?
On 24 April 2012 03:19, Chris Morley wrote:
> And on the side of that who would/could document the
> innards of linuxcnc so some less skilled programmers
> could contribute.
I think somebody is already looking at this.
> I think HAL as a whole would be pretty much just used
> as is. I'm sure so
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