Hello -
Its me again, still having problems ...
So I got Y and Z to jog, seems like the values for
FERROR for the X axis are not the same as those for Y
and Z in the /etc/emc2/sample-configs/m5i20/m5i20.ini
maybe that is not a big deal but I made them all the
same and still no jog on X-axis, get
On Fri, 15 Dec 2006, Jon Elson wrote:
> Date: Fri, 15 Dec 2006 21:26:55 -0600
> From: Jon Elson <[EMAIL PROTECTED]>
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "Enhanced Machine Controller (EMC)"
> Subject: Re: [Emc-users] Mesa m5i20 PWM frequency ?
>
> Peter C. Wallace wrote:
>
Chris Radek wrote:
>On Fri, Dec 15, 2006 at 01:28:47PM -0600, Jon Elson wrote:
>
>
>>When the developers get the FF2 (acceleration feed forward) put in, it will
>>help reduce the error on acceleration, too.
>>
>>
>
>John added FF2 a while back.
>
>
Oh, well, I'm behind the times, as usual!
Peter C. Wallace wrote:
>But whats the dead time? If you are not using a closed loop current control,
>(that is the controller PWM runs the HBridge directly) the dead time will
>become a significant part of your 50 KHz cycle time leading to non-linearity
>in PWM versus motor voltage. At least t
On Fri, 15 Dec 2006, ali sayed wrote:
> Date: Fri, 15 Dec 2006 17:51:31 -0800 (PST)
> From: ali sayed <[EMAIL PROTECTED]>
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "Enhanced Machine Controller (EMC)"
> Subject: Re: [Emc-users] Help with Mesa 5i20 Card (Configuration Issues)
>
Hi All -
I was wondering if any one has tried using the
emclog.tcl script out of 2.0.5 and this:
http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?PWM_Servo_Amplifiers
The script does not seem to be working, maybe I need
to turn on the Debug flags in the INI file ? I don't
really know Tcl/Tk.
I welco
Hi all-
OK, so I think I might have found the answer in the
HAL Docs ...but I welcome further input from the list
members.
Eric:
All of this is already configured correctly in the
m5i20 configuration that is included in 2.0.5, but I
checked it anyway to make sure, thanks for the
response.
Peter
Hi all, could I have some comments on the following E-stop circuit idea.
The core idea emerging from thinking about this is to wire dangerous
things in series(wire OR) and use the end result of this in
parallel(wire AND). That way the E-stop chain is cut if device1 OR
device2 OR device 3... fai
On Fri, Dec 15, 2006 at 01:28:47PM -0600, Jon Elson wrote:
>
> When the developers get the FF2 (acceleration feed forward) put in, it will
> help reduce the error on acceleration, too.
John added FF2 a while back.
-
Take Sur
On Fri, 15 Dec 2006, Jon Elson wrote:
> Date: Fri, 15 Dec 2006 14:08:46 -0600
> From: Jon Elson <[EMAIL PROTECTED]>
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "Enhanced Machine Controller (EMC)"
> Subject: Re: [Emc-users] Mesa m5i20 PWM frequency ?
>
> Peter C. Wallace wrote:
>
Ray Henry wrote:
>Halshow lists the base thread like this.
> 7543 NO base-thread ( 3623, 71329 )
>
>I compared the pci parport to the mobo's parport. The report from
>halshow (deadly slow) shows
> 7543 NO base-thread( 6796, 72359 )
>
>These data suggest that the pci card requi
Ali,
By default, do you mean you are using the configuration files in
/config/m5i20, or something else? One of the things you have to do with the
m5i20 board is to enable the PWM. That is found in the m5i20 configuration
in the m5i20_io.hal file, here:
# Connect amp enables to m5i20 dac enables
l
Peter C. Wallace wrote:
>50 KHz is pretty high for PWM, as the switching losses in the HBridge go up,
>and the dead time becomes more of the total cycle time.
>
My first cut at a PWM servo drive ran at 100 KHz, using analog components to
make a velocity servo amp with the traditonal ramp generato
Hello
Check out this site you may find it interesting
http://reprap.org/
Regards
Paul
-
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opin
Anders Wallin wrote:
>Hi all,
>
>I'm converting my mill from steppers to servos+ballscrews and I'm
>wondering what resolution encoder I will need.
>
>The steppers are driven by 10-microstep geckodrives, so have 2000pulses
>per revolution, and the current acme-screws have a pitch of 2mm/rev. So
I've gotten most of my issues resolve with this project, but I still
have a problem homing the rotary axis. Since the normal 'writer' to the
rotary axis position, stepgen.3.position-cmd, is my own routine
instead of axis.3.motor-pos-cmd, the routines in AXIS/emc don't work.
It requires rea
Hi -
Thanks for the response ...
What I meant was that the power is conncted to the
7i30 motor power connector and it is turned on. The
+5V for the encoders comes from the 50 pin connector
and that is why the encoders will always have power.
So yes the power to the motors is on but the PWM
sign
On Thu, 14 Dec 2006, ali sayed wrote:
> Date: Thu, 14 Dec 2006 19:13:31 -0800 (PST)
> From: ali sayed <[EMAIL PROTECTED]>
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: emc-users@lists.sourceforge.net
> Subject: [Emc-users] Help with Mesa 5i20 Card (Configuration Issues)
>
> Hi All
If you are using an Ubuntu system, you can get the source for the
version of AXIS shipped with emc 2.0.5 with apt:
apt-get source emc2-axis
If you are not using an Ubuntu system, you can get it in tar form:
http://linuxcnc.org/emc2/dists/dapper/emc2/source/emc2-axis_1.4a0-0.2.tar.gz
As Al
Hello,
you are downloading the version 2.0.5 from CVS.
However AXIS was added later to the emc2 CVS. You can get that by
changing to:
cvs -z5 -d:ext:[EMAIL PROTECTED]:/cvs co -rv2_1_branch -d
emc2-2.0.5 emc2
Warning: that is not a production ready branch. It still needs testing
before we will
Hello everyone,
I have strange problem that I can download emc2 but there is no axis code in
directory.
There was written that AXIS is in EMC2 source code directory.
What I'm doing wrong ?
cvs -z5 -d:ext:[EMAIL PROTECTED]:/cvs co -rRELEASE_2_0_5 -d emc2-2.0.5 emc2
Greets
Michael
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