SSD's have a very finite life. I can't go into details on what makes/models
have longer lives, or ways that different companies extend SSD life, but any
enterprise application using SSD's for performance reasons almost considers
the SSD a consumable of the system. Even consumer products
I have to admit I like Dells as well. They seem to be pretty well
designed.
My network server has a fairly old motherboard with an AMD 500MHz
processor. They don't run as hot as modern CPUs so it will run fanless
with an oversized heatsink. I also have a 12V fan running on 5V just for
peace
On 23 October 2010 05:04, Jon Elson el...@pico-systems.com wrote:
Based ENTIRELY on my personal experience, I would go with a used Dell
Optiplex.
One good thing about the used thing is that they come pre tested.
It is possibly even better than that. Assuming a bathtub curve of
failure with
On 23 October 2010 04:00, Igor Chudov ichu...@gmail.com wrote:
How about an Atom base mobo, SSD and a PicoPSU? Maybe with a space
AC-DC adapter?
If I was looking for extreme reliability I think I would avoid a
PicoPSU, just because they cram so much power electronics into such a
small space.
On 23 October 2010 07:43, Shaffin Bhanji shaffin.bha...@gmail.com wrote:
Anyone happen to get this configured correctly to run a dual drive
y-axis system?
It should work just the same as any other step/dir gantry system.
I have had good success using the Xylotex 3-axis system but sine I hear
I tweaked Martin's original Eagle ULP a bit, added some library devices,
then built a schematic to connect my Logitech gamepad Joggy Thing as an
EMC2 pendant.
The grisly details, links to background info, and current files are at:
Greetings,
I am sttempting to compile emc2_2.4.4 on a machine with these:-
a) cpu: amd64 -2 cores
b) o/s cblfs linux 64-bit, kernel-2.6.32, rtai-3.8.1, xorg-7.5 kde-4.4.5,
TK-2.5.8, tcl8.5.8
running makes ends as follows:-
Compiling emc/usr_intf/emcsh.cc
In file included
Igor:
Others have outlined reasons individual systems likely will fail.
Were I to set the same goal, I'd look into redundant, also known as
high-reliability or fault-tolerant, computing. With the cloud become
the next big thing there are now expensive commercial products being
pushed out the
Thanks Andy. I thought that EMC2 required EPP mode on the parallel port, I
think people are using the board to drive software stepgen. I have read the
thread re. the EPP issues and it seems that the fix for the EPP modes is
quite simple?
Going back to the PCI based cards, does the extra speed
On Sat, Oct 23, 2010 at 1:55 AM, John Murphy j...@wyosip.com wrote:
SSD's have a very finite life. I can't go into details on what makes/models
have longer lives, or ways that different companies extend SSD life, but any
enterprise application using SSD's for performance reasons almost
Andy
On your D510MO board have you tied the rt threads to one core? If so how did
you do this?
Regards
Andy
--
From: Andy Pugh a...@andypugh.fsnet.co.uk
Sent: Friday, October 22, 2010 9:38 AM
To: Enhanced Machine Controller (EMC)
On 10/23/2010 8:58 AM, emc-users-requ...@lists.sourceforge.net wrote:
From: Ed Nisleyed.08.nis...@pobox.com
Subject: [Emc-users] Progress Report: Eagle Schematic to HAL code
converter
To:emc-users@lists.sourceforge.net
Message-ID:1287836715.3808.18.ca...@localhost.localdomain
On 23 October 2010 13:58, Andy Ibbotson andyi_w...@btinternet.com wrote:
Thanks Andy. I thought that EMC2 required EPP mode on the parallel port
AFAIK only for devices that use it for communications, not for
applications which simply twiddle the pins on and off as individual
signals. I might
On 23 October 2010 14:37, Andy Ibbotson andyi_w...@btinternet.com wrote:
Andy
On your D510MO board have you tied the rt threads to one core? If so how did
you do this?
Currently I am running an out-of-the-box 10.04 liveCD installation.
I think that includes the islocpus=1 boot parameter in
On Saturday 23 October 2010 13:27:37 bv wrote:
Greetings,
I am sttempting to compile emc2_2.4.4 on a machine with these:-
a) cpu: amd64 -2 cores
b) o/s cblfs linux 64-bit, kernel-2.6.32, rtai-3.8.1, xorg-7.5 kde-4.4.5,
TK-2.5.8, tcl8.5.8
running makes ends as
I kept looking and found this:
http://www.newegg.com/Product/Product.aspx?Item=N82E16856101096
This is a Atom based fanless PC with an external laptop style brick
power supply (meaning it is easily replaceable) and a DVD drive. I
would replace or supplant the 320 GB Sata drive with an SSD. If I
On Saturday 23 October 2010 13:27:37 bv wrote:
Greetings,
I am sttempting to compile emc2_2.4.4 on a machine with these:-
a) cpu: amd64 -2 cores
b) o/s cblfs linux 64-bit, kernel-2.6.32, (labelled as linux-2.6nv)
rtai-3.8.1, xorg-7.5 kde-4.4.5, tk8.5.8, tcl8.5.8
make
On 23 October 2010 17:57, bv b...@btconnect.com wrote:
$SOURCES/emc2-2.4.4/src/hal/drivers/hal_m5i20.c:288: error: implicit
declaration of function 'pci_find_device'
Part of one of the instructions at
http://neo-technical.wikispaces.com/emc2-ubuntu
is
sed -i
Those old PCs need to be refitted with new hard drives every time. I
would expect this atom box to use 20-25 watts of power also. Reports
of their reliability are overblown. I used a Dell Dimension 4100 on my
Bridgeport Interact and it would occasionally fail to boot, for
example. I still have
Igor Chudov wrote:
Jon, thanks. What I like about atoms and ssds, is that they are cool
and thus are unlikely to suffer from temperature stress. There is also
no dependency on rotating fans. Meaning almost no dust clogging the
PC, no bearing failure etc.
Additionally for SSDs, there are no
Leslie Newell wrote:
The OS boots off a CF card but main storage is 2x 300GB
mechanical hard drives. Every day it backs up one drive to the other. It
has been running 24/7 for many years.
Do you have a script that spins up the backup drive, runs the backup and
then spins it down? If so,
On Sat, Oct 23, 2010 at 12:35 PM, Jon Elson el...@pico-systems.com wrote:
Igor Chudov wrote:
Jon, thanks. What I like about atoms and ssds, is that they are cool
and thus are unlikely to suffer from temperature stress. There is also
no dependency on rotating fans. Meaning almost no dust
On Sat, Oct 23, 2010 at 12:43 PM, Jon Elson el...@pico-systems.com wrote:
Leslie Newell wrote:
The OS boots off a CF card but main storage is 2x 300GB
mechanical hard drives. Every day it backs up one drive to the other. It
has been running 24/7 for many years.
Do you have a script that
Andy Ibbotson wrote:
Thanks Andy. I thought that EMC2 required EPP mode on the parallel port, I
think people are using the board to drive software stepgen.
EPP is ONLY needed for Pico Systems and Mesa products that use EPP as a
communications
path to a controller board. It definitely is NOT
Hi Jon,
I used hdparm to tell the drive to spin down after 5 minutes of
inactivity. The backup is simply rsync running as a cron job.
The SSD I used in my office machine was a Kingston. I have to say I was
impressed by their customer service. I emailed them on Monday and got an
RMA number
On Saturday 23 October 2010 18:23:12 Andy Pugh wrote:
On 23 October 2010 17:57, bv b...@btconnect.com wrote:
$SOURCES/emc2-2.4.4/src/hal/drivers/hal_m5i20.c:288: error: implicit
declaration of function 'pci_find_device'
Part of one of the instructions at
Andy Pugh wrote:
Possibly. I have read somewhere that a sane (200uS) servo-thread
_execution_ period is only enough time to shift 50 bytes through a
parallel port. That is potentially limiting, but has not been a
problem I have noticed with my 4-axis machine. The software stepgens
running in
On Saturday 23 October 2010 19:12:14 bv wrote:
Part of one of the instructions at
http://neo-technical.wikispaces.com/emc2-ubuntu
is
sed -i 's/pci_find_device/pci_get_device/g' *.c
thanks the sed allowed progress.
However I had also passed the following line to configure:-
Thanks Andy and Jon, I'm beginning to understand.
Regards
Andy
--
From: Jon Elson el...@pico-systems.com
Sent: Saturday, October 23, 2010 7:14 PM
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] 7i43 or
Ok, so if I have this right:
Servo thread periods of 1000us - 2000us are fine for 3/4 axis mill cutting
steel / aluminium with rapids of say 120ipm. Benefit of hardware stepgens
is improved resolution of accelerating / decelerating pulse trains - makes
better use of stepper motors are high
FWIW, I've had to replace the SSD in my son's quite
expensive notebook twice in less than 15 months. I've seen a
couple of articles saying how they have only a limited
number of read/write cycles before they are lible to fail -
I don't think I'd like to trust important data to one yet...
Ian
What was the brand of ssd?
On Oct 23, 2010 4:54 PM, Ian W. Wright watchma...@talktalk.net wrote:
FWIW, I've had to replace the SSD in my son's quite
expensive notebook twice in less than 15 months. I've seen a
couple of articles saying how they have only a limited
number of read/write cycles
Yes, but you can have the 7i43 or 5i20 perform the PID calculations. This
offloads the control update rates to the FPGA, and lessens the burden on the
parallel or PCI port. I am in the process of using a 7i43 for a Bridgeport
BTC-1 retrofit, and haven't had any problems with update rates.
On 23 October 2010 23:29, James Reed jsr...@hotmail.com wrote:
Yes, but you can have the 7i43 or 5i20 perform the PID calculations.
Are you sure?
--
atp
--
Nokia and ATT present the 2010 Calling All Innovators-North
Looks really bad!
On Sat, Oct 23, 2010 at 5:38 PM, RogerN re...@wildblue.net wrote:
At work we use Siemens Mircobox 427 PC's to control machines. They have a
heat sink on the back and don't have a fan. Some of them are using compact
flash for a hard drive and we use EWFMGR Enhanced Write
On Thu, 21 Oct 2010 19:57:57 -0500
Jon Elson el...@pico-systems.com wrote:
HI John:
How much is the pico servo driver boards?
Do they require a brakeout board?
Thanks;
Bill
--
Nokia and ATT present the 2010
Igor Chudov wrote:
Those old PCs need to be refitted with new hard drives every time. I
would expect this atom box to use 20-25 watts of power also. Reports
of their reliability are overblown. I used a Dell Dimension 4100 on my
Bridgeport Interact and it would occasionally fail to boot, for
Igor Chudov wrote:
man hdparm
OK, thanks. Wow, too many options there! But, I think I see that it is
the APM settings that
I want to change.
I use rdiff-backup, it is great and is incremental.
OK, have to read up on that.
Thanks!
Jon
Cathrine Hribar wrote:
HI John:
How much is the pico servo driver boards?
Do they require a brakeout board?
I am not sure what boards you are referring to. We have a Universal
PWM Controller, and PWM-input servo amplifiers for both brush and
brushless motors. The servo amplifiers
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