Sorry I do not know much about the guts of the program. Thanks for the
insight.
Will Baden
> Date: Thu, 25 Nov 2010 01:11:32 +
> From: a...@andypugh.fsnet.co.uk
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] reading the tool table
>
> On 25 November 2010 00:52, William
The BDI's are fairly light as they are, the only reason to look
elsewhere would be on a low memory machine. That said, the rtai kernel
is included with most distros, and EMC2 is not that difficult to install
separately, so outside of the convenience of the BDI most distros will
work. Xubuntu is
On 25 November 2010 00:52, William Baden wrote:
> I agree with having the tool table being read during the program. I see it
> would be nice whenever Tool comp was called it would refer to the tool table
> at that time.
I would speculate that doing it at tool-change or cycle-start is easy.
Do
I agree with having the tool table being read during the program. I see it
would be nice whenever Tool comp was called it would refer to the tool table at
that time.
Will Baden
> Date: Wed, 24 Nov 2010 13:15:47 -0600
> From: stus...@gmail.com
> To: Emc-users@lists.sourceforge.net
> Subject: [
On Wed, 24 Nov 2010 13:15:47 -0600, you wrote:
> What would be the difficulty level and/or objections to reading the tool
>table on 'CYCLE START' rather than a separate 'reload tool table' operation?
Good idea.
> My ultimate preference would have the tool table read continuously so
>changes w
I'm about to install EMC on another machine (Dell Optiplex) and was
wondering if anyone has found benefits from installing a lightweight window
manager (e.g. xfce, lxde, or even twm) instead of Gnome? I've used this
machine successfully for EMC before, so I know it works.
Also, is there any benefi
On Wed, 2010-11-24 at 12:41 -0800, Edward Bernard wrote:
> So the flag could be a something like a single hall sensor and magnet as
> opposed
> to a quadrature encoder?
Yes, but I don't know how repeatable a Hall sensor is. My lathe uses a
Hall sensor for the home switches, but it only needs to
we have a gantry machine that we setup with 2 switches hooked in series
for each axis. One is on the linear slide - one runs off the timing
pully. When we home - the machine runs until it closes the switch on
the linear slide - then because the switch are hooked in series - the
switch that i
So the flag could be a something like a single hall sensor and magnet as
opposed
to a quadrature encoder?
- Original Message
From: Kirk Wallace
To: Enhanced Machine Controller (EMC)
Sent: Wed, November 24, 2010 1:43:23 PM
Subject: Re: [Emc-users] Index Basics, OT: leaving stepppers
This is an endless topic. Here's a nice mechanism. Very suitable for the
telemetry/automation orientated.
http://video.google.com/videoplay?docid=-2084492353533644927#
Regards
Roland
On 24 November 2010 20:20, Kirk Wallace wrote:
> On Wed, 2010-11-24 at 11:29 -0600, Jon Elson wrote:
> > dave
I have researched this subject over the last 10+ years.
And I know a couple people that have tried limited phases of this experiment
as well.
My conclusion is, if do not have enough hobbies and too much free time,
adding 'home shop power station' to the list might be fun. But there is no
savings to
On Wed, 2010-11-24 at 10:46 -0800, Edward Bernard wrote:
> What is a "screw flag". An encoder?
An encoder index or a flag that allows one to reproduce the same
position within .0005", or whatever the application calls for. I would
not trust most home switch configurations by themselves. They shoul
Sorry to hear about your part Stuart.
I was listening at the the Wichita EMC2 fest. The following comments
will illustrate whether or not I understood (in a general sense) a
programming conversation about M codes.
Wouldn't it be possible to assign an M code to perform the reload tool
table
Hello gentlemen,
I have another solution for the power supply problem: move to Europe! In
our village (270 some people) we have two transformer stations on a
grid-connected 20 kV three-phase line. The power lines go to (or come
from) three neighboring villages and eventually end up at the region
Gentlemen,
What would be the difficulty level and/or objections to reading the tool
table on 'CYCLE START' rather than a separate 'reload tool table' operation?
My ultimate preference would have the tool table read continuously so
changes would be available on the next line read from the progra
On Wed, Nov 24, 2010 at 1:11 PM, Jim Fleig wrote:
> Hello All,
>
> Happy Thanksgiving one day early!
>
> To protect sensitive electronics in machine tool controls (and many
> other places) put an UPS (Uninterruptible Power Supply) between the
> power source and the sensitive electronics. Most DC
What is a "screw flag". An encoder?
- Original Message
From: Kirk Wallace
To: Enhanced Machine Controller (EMC)
Sent: Wed, November 24, 2010 12:33:26 PM
Subject: Re: [Emc-users] OT: leaving stepppers energized but not moving
On Wed, 2010-11-24 at 18:21 +0100, Lars Andersson wrote:
>
On Wed, 2010-11-24 at 18:21 +0100, Lars Andersson wrote:
> If the temperature of the motors is acceptable there is nothing else to
> worry about when leaving them on for a long time.
>
It is kind of a waste of energy. There are other, albeit unlikely,
hazards of leaving a CNC machine energized an
On Wed, 2010-11-24 at 11:29 -0600, Jon Elson wrote:
> dave wrote:
> > Hi Jack,
> >
> > Have you computed the real costs of running a diesel powered genset
> for > local power. It comes out to be not very attractive.
> > Just the cost of the fuel alone is more per KWH than the grid.
> >
> Yes,
Hello All,
Happy Thanksgiving one day early!
To protect sensitive electronics in machine tool controls (and many
other places) put an UPS (Uninterruptible Power Supply) between the
power source and the sensitive electronics. Most DC power supplies
are converting 110 VAC to whatever DC volt
Gentlemen,
Having researched the subject of isolating from the grid to try to convert
my shop I will interject a comment or two.
The KWH cost of utility power is amazingly cheap compared to generating it
locally.
The KWH cost is not the only cost. At least once a year we experience a
power gl
dave wrote:
> Hi Jack,
>
> Have you computed the real costs of running a diesel powered genset for
> local power. It comes out to be not very attractive.
> Just the cost of the fuel alone is more per KWH than the grid.
>
Yes, but if you are 20 miles from the grid, and the only person out
the
If the temperature of the motors is acceptable there is nothing else to
worry about when leaving them on for a long time.
> -Original Message-
> From: Andy Pugh [mailto:a...@andypugh.fsnet.co.uk]
> Sent: den 24 november 2010 00:07
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc
Having satisfied my curiosity now I think I will stay with Heron for a
while, (9k on the same HW) until maybe some other user finds a fix.
I use Lucid now on other (non realtime) machines, the difference is not
important.
> -Original Message-
> From: Andy Pugh [mailto:a...@andypugh.fsnet.
Hi Jack,
Have you computed the real costs of running a diesel powered genset for
local power. It comes out to be not very attractive.
Just the cost of the fuel alone is more per KWH than the grid.
Just my tuppence.
Dave
On Tue, 2010-11-23 at 12:37 -0600, Jack Coats wrote:
> Keeping exactly
Typical losses in high voltage transmission lines are on the order of 6
to 7% distributed between corona and IR losses depending on the
voltage.
D
On Tue, 2010-11-23 at 18:10 +, Andy Pugh wrote:
> On 23 November 2010 16:52, Dave wrote:
>
> > Apparently there is a large DC inverter station
Google "HVDC in the pacific northwest" will get you a couple of links.
There are two links (npi) from near The Dalles dam on the Columbia to S
CA.
Also there is a site that lays out DC interties as firewalls between
major grids therefore minimizing intergrid interferences leading to
instability.
I think the satellites have caesium clocks now but that is
only from memory. The reason they need to be adjusted fairly
frequently is due to the satellites propensity to fall back
to earth - i.e. their orbits decay over time making the
satellites closer to earth and hence the signal travel time
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