Bruce Klawiter wrote:
>>
> I may not be understanding this, when you say the "The fact that his Z axis
> appears to have abnormal transients even when
> disconnected from any command input" are you saying I unplugged something or
> just that there is no code telling the Z axis to move.
>
>Yup, that is a concern. The fact that his Z axis appears to have
>abnormal transients even when disconnected from any command input at the >same
>time the X has similar transients seems to indicate a ground loop **IS** to
>>blame for this. There should be NO WAY that two amplifiers should ha
Gentle persons:
You've kindly put up with me bloviating on all manner of subjects for
some years now. I owe you a more direct contribution.
Despite the fact that I'm a lexical kind of guy who believes in the Tao
of Unix (everything should be text that can be piped through filters /
yada yada y
On Oct 15, 2011, at 9:46 PM, Peter C. Wallace wrote:
> Setting steplen or stepspace longer can only make the stepgens maximum
> velocity _lower_ not higher, so that cannot help (unless you have an
> interface
> speed problem but this would not show up as a following error but rather as
> misse
On Sat, 15 Oct 2011, Tom Easterday wrote:
> Date: Sat, 15 Oct 2011 20:53:44 -0400
> From: Tom Easterday
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "Enhanced Machine Controller (EMC)"
> Subject: Re: [Emc-users] config without encoders
>
>
> On Oct 15, 2011, at 8:46 PM, Peter C.
On Oct 15, 2011, at 8:46 PM, Peter C. Wallace wrote:
>
> I would check carefully that you do not have something, likely a velocity or
> steplen/stepspace setting that limits the maximum stepgen speed.
>
> at your scale and speed you have a fairly slow step rate (82 KHz) which is
> less than 1%
On Sat, 15 Oct 2011, Tom Easterday wrote:
> Date: Sat, 15 Oct 2011 19:58:44 -0400
> From: Tom Easterday
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "Enhanced Machine Controller (EMC)"
> Cc: "Enhanced Machine Controller (EMC)"
> Subject: Re: [Emc-users] config without encoders
>
On Oct 15, 2011, at 7:29 PM, "Peter C. Wallace" wrote:
> On Sat, 15 Oct 2011, Tom Easterday wrote:
>
>> Date: Sat, 15 Oct 2011 15:28:19 -0400
>> From: Tom Easterday
>> Reply-To: "Enhanced Machine Controller (EMC)"
>>
>> To: "Enhanced Machine Controller (EMC)"
>> Subject: Re: [Emc-users] c
On Sat, 15 Oct 2011, Tom Easterday wrote:
> Date: Sat, 15 Oct 2011 15:28:19 -0400
> From: Tom Easterday
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "Enhanced Machine Controller (EMC)"
> Subject: Re: [Emc-users] config without encoders
>
>
> On Oct 15, 2011, at 12:48 PM, Dave wr
On Saturday, October 15, 2011 06:13:02 PM Jon Elson did opine:
> gene heskett wrote:
> > I'll second those sentiments, Kent. I hope the logs are being kept
> > for forensic purposes. Tracing the src IP could well be
> > enlightening.
>
> Normally the hackers use other hacked-into computers, and
gene heskett wrote:
> I'll second those sentiments, Kent. I hope the logs are being kept for
> forensic purposes. Tracing the src IP could well be enlightening.
>
Normally the hackers use other hacked-into computers, and don't leave
traces of
their original computer. They may use several la
gene heskett wrote:
>> Well there is two power supplies going to the amps so I am
>> confused, please see the schematic here
>> https://sites.google.com/site/bmklawt/home/control-schematic
>> I don't know were the motor return line is
>>
> I think you will have to find it. There has been a d
Kent A. Reed wrote:
> Is it just me or does there seem to be an uptick in attacks on our
> hosted resources? It makes me wonder if we've simply been "found" or if
> someone has us specifically in their sights.
>
The one time my site had a serious attack, I got an email from RSA
security to re
Bruce Klawiter wrote:
> Trying to get rid of spikes, see image 8 here:
> https://sites.google.com/site/bmklawt/home/pid-tuning
>
> you need to check the + and - 15 Volts, or whatever the servo amps use
>
>> as the supply for their op-amps. Capacitors may have
>>
> deteriorated and th
Karl Cunningham wrote:
> On 10/14/2011 07:33 PM, Jon Elson wrote:
>
>> Sven Wesley wrote:
>>
>>> http://linuxcnc.org/hardy/dists/hardy/emc2.4-sim/binary-amd64/
>>>
>>>
>> I don't see anything unusual there, and nothing later than March 2011.
>>
>> Did I miss it?
>>
>
> You may h
It was my pleasure!
j.
On Sat, Oct 15, 2011 at 9:51 PM, Frank Tkalcevic <
fr...@franksworkshop.com.au> wrote:
> Thank you, that was a great way to tune.
>
> I used halcmd from a terminal prompt to tweak the pid parameters. Having
> the command line history is very convenient.
>
> I had to rep
Thank you, that was a great way to tune.
I used halcmd from a terminal prompt to tweak the pid parameters. Having the
command line history is very convenient.
I had to replace the "o10 while [1]" with "o10 repeat [100]". Axis doesn't
like infinite loops!
> -Original Message-
> From:
On Oct 15, 2011, at 1:33 PM, Peter C. Wallace wrote:
>
> Will your step length/step space/maxvel parameters allow any (say 10 %
> minimum) headroom at your maximum speed?
>
> This sounds exactly like what would happen when you run out of headroom
Hmm, we will try playing with those. We were u
On Oct 15, 2011, at 12:48 PM, Dave wrote:
> Tom,
>
> I'm running a couple of stepgens via a 5i20 card on one machine and it
> is running much faster than what you are and I am not seeing overshoot
> problems.
>
> I suspect your Max_accel below is lower than the accel values you have
> set in
On Sat, 15 Oct 2011 14:00:54 -0400
gene heskett wrote:
> On Saturday, October 15, 2011 01:43:50 PM sa...@empirescreen.com did opine:
>
> > Here is our ground wiring.. (lower left hand corner of box. - yes it is
> > messy)
> >
> > http://electronicsam.com/images/KandT/conversion/groundwiring.jp
On Saturday, October 15, 2011 01:43:50 PM sa...@empirescreen.com did opine:
> Here is our ground wiring.. (lower left hand corner of box. - yes it is
> messy)
>
> http://electronicsam.com/images/KandT/conversion/groundwiring.jpg
>
> sam
I've done worse myself that worked ok.
The long bus bar
On Sat, 15 Oct 2011, Tom Easterday wrote:
> Date: Sat, 15 Oct 2011 01:12:39 -0400
> From: Tom Easterday
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "Enhanced Machine Controller (EMC)"
> Subject: [Emc-users] config without encoders
>
> We are having some issues turning a servo m
On Sat, 2011-10-15 at 06:37 -0700, Karl Cunningham wrote:
> On 10/14/2011 10:30 PM, Kirk Wallace wrote:
> > Homing will need to be worked out, or I could rig up an absolute
> > encoder. I found that if I "setp encoder.0.reset 1", the carousel starts
> > rotating until I get it set back to 0, and of
Here is our ground wiring.. (lower left hand corner of box. - yes it is messy)
http://electronicsam.com/images/KandT/conversion/groundwiring.jpg
sam
On Sat, 15 Oct 2011 12:21:01 -0400
gene heskett wrote:
> On Saturday, October 15, 2011 12:12:40 PM Bruce Klawiter did opine:
>
> > Trying to ge
Tom,
I'm running a couple of stepgens via a 5i20 card on one machine and it
is running much faster than what you are and I am not seeing overshoot
problems.
I suspect your Max_accel below is lower than the accel values you have
set in the INI file so you are telling the stepgen to go faster th
On Saturday, October 15, 2011 12:21:56 PM Kent A. Reed did opine:
> On 10/14/2011 6:17 PM, Sven Wesley wrote:
> > http://linuxcnc.org/hardy/dists/hardy/emc2.4-sim/binary-amd64/
> > --
> >
>
> Is it just me or does there
On Sat, 2011-10-15 at 01:12 -0400, Tom Easterday wrote:
> We are having some issues turning a servo motor with a Granite Devices
> drive and in the process accidentally fried our homemade differential
> to single ended conversion boards. We ordered some parts to repair
> them and in the mean time
On Saturday, October 15, 2011 12:12:40 PM Bruce Klawiter did opine:
> Trying to get rid of spikes, see image 8 here:
> https://sites.google.com/site/bmklawt/home/pid-tuning
>
> See the jitter here: http://www.youtube.com/user/bmklawt
>
> >Probably not the root cause of the problem, but you might
On 10/14/2011 6:17 PM, Sven Wesley wrote:
> http://linuxcnc.org/hardy/dists/hardy/emc2.4-sim/binary-amd64/
> --
>
Is it just me or does there seem to be an uptick in attacks on our
hosted resources? It makes me wonder if w
On Oct 15, 2011, at 3:53 AM, Viesturs Lācis wrote:
> 2011/10/15 Tom Easterday :
>> When we run above 2000ipm we have significant following error
>>
>> Could our Mesa cards be doing something wrong?
>
> 2000 ipm = 50m/min and for me that is really fast.
> Are You sure that stepgens on Mesa card
On Oct 15, 2011, at 3:53 AM, Viesturs Lācis wrote:
> 2011/10/15 Tom Easterday :
>> When we run above 2000ipm we have significant following error
>>
>> Could our Mesa cards be doing something wrong?
>
> 2000 ipm = 50m/min and for me that is really fast.
> Are You sure that stepgens on Mesa card ar
Trying to get rid of spikes, see image 8 here:
https://sites.google.com/site/bmklawt/home/pid-tuning
See the jitter here: http://www.youtube.com/user/bmklawt
>Probably not the root cause of the problem, but you might try commenting
>out all the backlash statements in your ini file.
<
Tried
On 10/14/2011 10:30 PM, Kirk Wallace wrote:
> Homing will need to be worked out, or I could rig up an absolute
> encoder. I found that if I "setp encoder.0.reset 1", the carousel starts
> rotating until I get it set back to 0, and of course the home position
> is then lost. I suppose the procedure
Hi Kirk,
That is a nice overview of the setup. Can use that for the wiki or manuals?
Thanks
John
On 10/15/2011 12:30 AM, Kirk Wallace wrote:
> On Fri, 2011-10-14 at 15:43 -0400, Dave wrote:
> ... snip
>> The limit3 function is a very useful function. I have it running 3
>> axis on one machine
2011/10/15 Tom Easterday :
> When we run above 2000ipm we have significant following error
>
> Could our Mesa cards be doing something wrong?
2000 ipm = 50m/min and for me that is really fast.
Are You sure that stepgens on Mesa card are capable to produce steps
at such a high frequency to keep up
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