Re: [Emc-users] update version on working machine

[Gregg Eshelman via Emc-users]

Goldenfir SSDs test out to be as good as Micron's mid-range models, because 
they use the same controller chip and memory chips as Micron's mid range, but 
cost much less. Unlike how many companies publish absolute best case 
performance for their storage, this guy's benchmarks are well above Goldenfir's 
published performance specs.
https://www.youtube.com/watch?v=_n8Foung0Bs

   On Friday, August 24, 2018, 10:52:49 AM MDT, Gene Heskett 
 wrote:  
I might point out that SSD's pricing are getting very competitive. I've 
been running 2 of my machines on 60GB SSD's, which are about 3 to 4x 
faster than spinning rust. Now 120GB's are under 50 bucks. And they are 
quicker than stink with read rates of 250 megs/second and up. You'' 
think a 10 yo Dell is a brand new machine.  Being aware that they will 
fail at some point due to write wear, I'd expect the 120's will outlast 
the 60 by a factor of 4 or so, and the first "60" is 300.5 days old 
running in the Dell that runs my G0704. Smartctl says no re-allocated 
sectors yet, pretty good for what is now a $30 drive from newegg.  
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Re: [Emc-users] pncconf error under 2.7.14

[Condit Alan via Emc-users]

I sent my 5i25 and 7i76 into Mesa to look at. Mesa boards may be more expensive 
than stuff from China, but you won’t get help from China like you do from 
Peter. 

Thanks,
Peter

> On Aug 23, 2018, at 4:38 PM, Peter C. Wallace  wrote:
> 
> On Thu, 23 Aug 2018, Condit Alan wrote:
> 
>> Date: Thu, 23 Aug 2018 13:50:05 -0700
>> From: Condit Alan 
>> To: Wallace Peter C. 
>> Cc: "Emc-users@lists.sourceforge.net" ,
>>andy pugh 
>> Subject: Re: [Emc-users] pncconf error under 2.7.14
>> I have attached the output from mesaflash. I have 4 or 5 25pin m-m cables. I 
>> have tried 3 different ones (new out of the bag (however made in china)).
>> 
>> W1 is right, W3 is left. I just noticed that the 5V LED is pulsing bright 
>> then dim about every three seconds.
> 
> 
> Normally W1 must be in the left hand position (this is likely why its not 
> working)
> 
> Also sounds like you have a problem with your 5V power supply
> 
> I would jumper the 5I25 /7I76 for cable power and eliminate the external 5V 
> supply as a potential issue: 7I76 W2 left, 5I25 W2 UP
> 
>> 
>> 
>> 
>>> On Aug 23, 2018, at 10:57 AM, Peter C. Wallace  wrote:
>>> 
>>> On Thu, 23 Aug 2018, Condit Alan wrote:
>>> 
 Date: Thu, 23 Aug 2018 10:31:08 -0700
 From: Condit Alan mailto:condita...@yahoo.com>>
 To: Wallace Peter C. mailto:p...@mesanet.com>>
 Cc: "Emc-users@lists.sourceforge.net 
 " >>> >,
   andy pugh mailto:bodge...@gmail.com>>
 Subject: Re: [Emc-users] pncconf error under 2.7.14
 Peter,
 
 I have a separate 24V 2.5amp DIN rail power supply that powers fieldIO and 
 a small pcb power supply (7805 plus a couple caps) that comes off of it to 
 supply 5v power. I had the jumper in the wrong position for separate 
 powers for field IO and separate 5v power. I changed that jumper. I was 
 getting both oranges LEDs lit before and after the change, but could that 
 have caused a problem?
>>> 
>>> Its not likely but if you supply external 5V and you have the jumpers wrong 
>>> you can possibly damage the 5I25 card or the cable (thats why theres a 
>>> warning in the manual) That said, a 7805 is not likely to have enough 
>>> current to do any real damage
>>> 
 
 I checked all the other jumpers on both boards and everything is now 
 correct. I have a short DB25M to DB25F ribbon cable to bring the 7i76 out 
 to the back of the cabinet. I disconnected it and connected the 6ft 25pin 
 DB25m to DB25m cable direct from the 5i25 to the 7i76 but no change in 
 behavior.
 
 I noticed that in pncconf there are no tabs for TB2 or TB3. Also on TB4 
 there are no lines for SPINDLE-ENA or SPINDLE-DIR. Is that normal?
>>> 
>>> I would not worry about pncconf at this point, if you have no 7I76 pins its 
>>> likely a hardware or firmware setup issue
>>> 
>>> 
 
 I bought the 5i25/7i76 pair directly from you so I assume that it has the 
 correct firmware???
>>> 
>>> 
>>> I would check just to make sure
>>> 
>>> sudo mesaflash --device 5i25 --readhmid
>>> 
>>> Did you get the DB25 M-M cable from us also?
>>> 
>>> 
>>> Are 7I76 W1 and W3 in the left hand positions?
 
 What else can I do?
 
 Alan
 
>>> 
>>> Peter Wallace
>>> Mesa Electronics
>>> 
>>> (\__/)
>>> (='.'=) This is Bunny. Copy and paste bunny into your
>>> (")_(") signature to help him gain world domination.
>> 
>> 
> 
> Peter Wallace
> Mesa Electronics
> 
> (\__/)
> (='.'=) This is Bunny. Copy and paste bunny into your
> (")_(") signature to help him gain world domination.
> 


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Re: [Emc-users] G43 weirdness

[jeremy youngs]

Is there a g40 in your prep line ?


>  At the end of my toolchange subroutine I have G43H#5400 to
> automatically apply the offsets for that tool.
>
> This is generally done in the first move off line . After calling tool and
> the prep line .
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[Emc-users] Axis limit warning

[Les Newell]

I have another issue that I think others have seen as well. Quite often 
when I run a program on my router I get a warning that the Z axis 
maximum limit will be exceeded. The code runs fine if I ignore the 
warning. The warning appears to be triggered by G53 G0Z0 at the end of 
the code. My maximum limit is Z1, minimum something like -200.


Does anyone have any ideas of what is going on? As a workaround is there 
any way to tell Axis to never show this warning?


Les


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[Emc-users] G43 weirdness

[Les Newell]

I'm in the process of rebuilding a large router which has an 8 station 
ATC. I have overridden M6 to do the positioning and sequencing. This all 
works fine. At the end of my toolchange subroutine I have G43H#5400 to 
automatically apply the offsets for that tool.


Now for the odd bit. If I do a tool change after starting LinuxCNC the 
offsets do not get applied. I can change tools as many times as I like 
and the offsets stay at 0. If I run a program that contains a G43 or 
manually enter G43Hxx in MDI everything starts working. I can see the 
offsets change automatically as I change tool. It continues to work as 
expected until I restart LinuxCNC.


I'm running a fairly recent Buildbot build. Has anyone else seen similar 
behavior?


Les



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Re: [Emc-users] update version on working machine

[Gene Heskett]

On Friday 24 August 2018 10:12:54 Dave Cole wrote:

> >> THIS is the safest
>
>   way to upgrade a running system:  Make multiple partitions.
>
> No, that's definitely not the safest way.  Jon's right.  Swap hard
> drives.   You can't screw up something that's not plugged in!
>
> If you don't want to do that, then at least image the drive to another
> device, like a USB drive, then unplug the drive and put it in a safe
> place.
>
> Been there, done that.
>
> Dave

I might point out that SSD's pricing are getting very competitive. I've 
been running 2 of my machines on 60GB SSD's, which are about 3 to 4x 
faster than spinning rust. Now 120GB's are under 50 bucks. And they are 
quicker than stink with read rates of 250 megs/second and up. You'' 
think a 10 yo Dell is a brand new machine.  Being aware that they will 
fail at some point due to write wear, I'd expect the 120's will outlast 
the 60 by a factor of 4 or so, and the first "60" is 300.5 days old 
running in the Dell that runs my G0704. Smartctl says no re-allocated 
sectors yet, pretty good for what is now a $30 drive from newegg.

And running the G0704, I'm using only 29% of its 64GB, so I've buckets of 
room to play in yet.

I have 2 on the r-pi, a 64GB and 120+ GB, using them for kernel building 
workspaces. I might have $70 in them.


> On 8/23/2018 10:00 PM, Chris Albertson wrote:
> > Swap out the HD?   No. Yo can install quite a few copies of
> > Linux+EMC on one drive then chose which to boot from the boot menu. 
> > THIS is the safest way to upgrade a running system:  Make multiple
> > partitions.
> >
> > Then it is easy to copy from the old system, you boot the new one
> > and mount the old system read-only and copy from it.
> >
> > On Thu, Aug 23, 2018 at 6:18 PM Jon Elson  
wrote:
> >> On 08/23/2018 08:41 AM, Ed wrote:
> >>> I have a lathe that is running 2.5.4 and runs well.
> >>>
> >>> I get offers from Update Manager to do an update. Can this
> >>> be any danger to operation or to any of the ini or hal
> >>> files or operation?
> >>>
> >>> My paranoid gene tells me to ask.
> >>
> >> Your paranoia is GOOD!  I would not update the system.  If
> >> you want to check out the newer version,
> >> at the VERY LEAST, just swap out the hard drive, and install
> >> a completely new system from the ISO.
> >> If the computer is pretty old, it might be time to update
> >> the hardware as well.
> >> You can copy over your config file set and machining
> >> programs from backups, or using whatever removable media you
> >> have available.  Most likely, you will have to make some
> >> small adjustments to your configs files to make them work on
> >> the latest LinuxCNC version.  The release notes usually
> >> describe what needs to be done accurately.
> >>
> >> This is the safest way to do things.
> >>
> >> Jon
> >>
> >>
> >>
> >>
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-- 
Cheers, Gene Heskett
--
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 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

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Re: [Emc-users] update version on working machine

[Dave Cole]

THIS is the safest

 way to upgrade a running system:  Make multiple partitions.

No, that's definitely not the safest way.  Jon's right.  Swap hard drives.   
You can't screw up something that's not plugged in!

If you don't want to do that, then at least image the drive to another device, 
like a USB drive, then unplug the drive and put it in a safe place.

Been there, done that.

Dave



On 8/23/2018 10:00 PM, Chris Albertson wrote:

Swap out the HD?   No. Yo can install quite a few copies of Linux+EMC on
one drive then chose which to boot from the boot menu.  THIS is the safest
  way to upgrade a running system:  Make multiple partitions.

Then it is easy to copy from the old system, you boot the new one and mount
the old system read-only and copy from it.

On Thu, Aug 23, 2018 at 6:18 PM Jon Elson  wrote:


On 08/23/2018 08:41 AM, Ed wrote:

I have a lathe that is running 2.5.4 and runs well.

I get offers from Update Manager to do an update. Can this
be any danger to operation or to any of the ini or hal
files or operation?

My paranoid gene tells me to ask.


Your paranoia is GOOD!  I would not update the system.  If
you want to check out the newer version,
at the VERY LEAST, just swap out the hard drive, and install
a completely new system from the ISO.
If the computer is pretty old, it might be time to update
the hardware as well.
You can copy over your config file set and machining
programs from backups, or using whatever removable media you
have available.  Most likely, you will have to make some
small adjustments to your configs files to make them work on
the latest LinuxCNC version.  The release notes usually
describe what needs to be done accurately.

This is the safest way to do things.

Jon




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