My CNC Mill uses Yaskawa analog input servo drives with Pico Systems PPMC. You
need to use a PI/P (not PID) cascaded control scheme. There are articles in
Digital Machinist magazine that describe the entire build, but Part Three is
most relevant to your concern. It also has a full schematic:
Leonardo,
I have had good luck buying new and used Yaskawa servos from eBay.
Jim
- Original Message -
From: Leonardo Marsaglia
To: Enhanced Machine Controller (EMC)
Sent: Fri Apr 20 15:08:32 2012
Subject: [Emc-users] OT: Chinese servo motor
Hello everybody,
This is not a pure LinuxCNC
Erik,
A few years ago I used e-machine shop. Their CAD software, which you must
download and install, was very basic. It worked well and the CNC machining was
reasonably priced. The whole process is transparent down to your cost and ship
date before you even purchase your part(s). You can b
Tony,
On my Sherline I like to use endmill holders, as opposed to collets, so I can
measure all of my tool lengths away from the machine. Then I use a dial
indicator as a master tool. Mine is 3.6000 inches long so when I set up my G54
work offset that is the number I enter into the pop up dia
Joe,
It's been a few years since I did scaling, but I remember using a formula in
the integrator's manual. It took into account motor revolution, leadscrew
pitch, etc. And resulted in very specific number (for each axis) to plug into
the ini file.
I then verified each axis move with a dial indic
You might want to check out this site:
http://www.logicnc.com/home.html
They have a parallel port to rc servo converter so LinuxCNC can control an
outrunner spindle speed.
Cheers,
Jim
-Original Message-
From: Erik Friesen [mailto:e...@aercon.net]
Sent: Wednesday, February 22, 2012 3:19
a small circuit that
provides noise filtering on the step/dir, and IO lines between the Granites and
Mesa cards. As soon as I round up my notes on that I will add it.
Tom
On Feb 17, 2012, at 7:39 AM, James Louis wrote:
> Again, a wiring diagram would be worth a thousand words . . .
>
>
Although this is off topic by now, I agree with Charles. A CNC machine should
be just that, and have a reliable stand alone PC at its core. A coffee machine
makes coffee, and a CNC cuts metal. The thing I love about LinuxCNC is that
when paired with Pico or Mesa hardware it provides an afford
Again, a wiring diagram would be worth a thousand words . . .
- Original Message -
From: Erik Friesen
To: Enhanced Machine Controller (EMC)
Sent: Fri Feb 17 06:24:17 2012
Subject: Re: [Emc-users] More control board questions
What are they using for breakout boards? I don't see anything
Feb 16 09:26:02 2012
Subject: Re: [Emc-users] More control board questions
On Thu, 16 Feb 2012, James Louis wrote:
> Date: Thu, 16 Feb 2012 09:02:26 -0600
> From: James Louis
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "emc-users@lists.sourceforge.n
Are there any example wiring diagrams available for this "easy" closed loop
stepper configuration?
It sounds interesting.
Jim
- Original Message -
From: Peter C. Wallace
To: Enhanced Machine Controller (EMC)
Sent: Thu Feb 16 08:42:33 2012
Subject: Re: [Emc-users] More control board ques
Oops...sorry. I didn't realize the D510MO was discontinued.
The same components with a MW525 motherboard should be equally reliable however.
That's a good tip to turn off hyper-threading in the bios!
Jim
-Original Message-----
From: James Louis [mailto:james.lo...@gastechnology
To all,
For what it's worth, I have used the following components from Mini-Box.com
many times without a single problem. I think that it is just about the perfect
motherboard for a dedicated (stand alone) LinuxCNC machine:
Intel D510MO
1GB DDRAM
SATADOM-2000-4GB
PicoPSU-80 12V DC-DC ATX
If yo
Thank you Noel.
Also for those interested in determining which one of six servo control system
models their particular hardware falls into (so you know which parameters to
change BEFORE tuning) buy this book:
"Control System Design Guide" by George Ellis
It helped me a great deal.
Jim
- Orig
Andy,
My Servomill also runs on a D510MO and it is plugged into the master outlet of
a power strip called an "Eco-strip" (careful when googling!). It uses a USB
port to switch all the other outlets ON/OFF when the D510MO turns ON/OFF. It's
simple and works well.
Jim
- Original Message ---
To all,
For what it's worth I have been using 4GB SATA Flash Vertical Disk On Modules
(SATADOM) in my CNC mill for a couple years without a problem. It only has
EMC2 and my G-code files on it. I also have been using them on other machines
for a shorter time period but also without problems.
Dan,
I don't know if you are going to get much discussion here on this
fundamental topic. Your question is so complicated that it is usually answered
in CNC classrooms or CNC books with lots of diagrams. A text based forum is a
poor substitute for these. As far as You Tube is concern
I've retrofitted a Sherline/A2ZCNC with servos. Given the choice I would
always use them over steppers because they close multiple control loops. For
some photos of the custom motor mounts and other stuff you can check out the
last three issues of Digital Machinist magazine and look for the Se
To all,
Some of this topic is covered in this month's Digital Machinist magazine, if
you're interested.
Cheers!
James
- Original Message -
From: Jon Elson
To: m...@calypsoventures.com ; Enhanced Machine
Controller (EMC)
Sent: Fri Nov 11 16:49:51 2011
Subject: Re: [Emc-users] A question
Good morning all,
There is an ad running in Digital Machinist magazine for an RC speed control of
a brushless motor with ESC. If interested go to www.logicnc.com
It gives EMC2 a way to control spindle speed from the parallel port. I haven't
used one yet though.
Cheers!
- Original Message -
Bruce,
Try to not edit your tool table outside of Axis. In EMC2.4.6 the tool table is
edited from a pulldown menu in the Axis interface. When a tool call (Tx M6) is
performed either in MDI or from a G-code program running, the values for your
tool diameter and length will be displayed in the
Bruce,
Before changing .INI values using HalScope Calibration, I recommend modeling
your system first. In other words understand where you are closing your
current, velocity, and position loops.
My PPMC system uses Yaskawa servo amps which close the current and velocity
loop, leaving EMC2 to
011
Subject: Re: [Emc-users] Beginner questions regarding axis.
On 17 Sep 2011, at 22:56, James Louis wrote:
> CNC mill homes every axis from the standpoint of the tool and all movement
> during homing is positive.
You can choose to home in either direction by changing the sign of the
John,
Welcome to EMC2! I can't answer all of your questions, but I will share my
homing experience: a CNC mill homes every axis from the standpoint of the tool
and all movement during homing is positive. This means the table moves to the
left and toward you, and the spindle moves up. Now your
Tom,
EMC2 can indeed use an index pulse for homing after tripping a switch or
sensor. It is the most accurate method.
I'm just curious, if you have servomotors why not use them with matching servo
amps? Closing your position loop back to EMC2 is also the most accurate, and
you will love your D
Scott,
You got a lot of replies on a topic with a lot of fog surrounding it, but I
need to chime in here so you don't repeat my mistake: I broke a motor coupling
about a year ago during servo tuning. The sound almost scared the coolant out
of me!
I am no controls expert, but I now know why it
Steve,
EMC2 does it the same way. After a work offset and tool call, I like the next
block to include G43 Hx G00 Z1. and watch the tool as it approaches the part
surface (in single block). A check with a 1 inch gage block at that point
gives me a little peace of mind.
Cheers,
jim
-Origi
Colin,
First of all welcome to EMC2! Your G-code looks correct to me, so maybe it's
something in your setup. I use tool presetting for my CNC mill too, so here's
how I do it:
1) Home the spindle gauge point to the positive Z limit and/or home.
2) Use a master tool (mine is 3.6000 inches long)
: Re: [Emc-users] D525MW board
2011/7/6 James Louis :
> Could you guys please explain "isolcpus" and "hyperthreading"? Are these in
> the BIOS? What should these be set at for a D510MO?
> Much thanks!
> Jim
http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?TroubleShoo
Could you guys please explain "isolcpus" and "hyperthreading"? Are these in
the BIOS? What should these be set at for a D510MO?
Much thanks!
Jim
-Original Message-
From: Andrew [mailto:parallel.kinemat...@gmail.com]
Sent: Tuesday, July 05, 2011 4:26 PM
To: Enhanced Machine Controller (E
I will see you there Matt! Jim
- Original Message -
From: Matt Shaver
To: Enhanced Machine Controller (EMC)
Sent: Fri Jun 10 08:23:59 2011
Subject: [Emc-users] Anyone coming to the CNC Workshop?
Steve Stallings and I are coming, and I figure Jon Elson will probably
show up as he's a ve
, James Louis
wrote:
> Igor,
>
> I use Standard, but for 4-Axis you will need AlibreCAM Professional.
>
>
Thanks. With the standard AlibreCAM, though, I can do all "2.5D" stuff,
right? Pocketing and so on?
Igor
> jim
>
> -Original Message-
> From:
you use?
i
On Tue, May 31, 2011 at 6:02 AM, James Louis
wrote:
> Igor,
> "Inexpensive" CAD CAM is a very relative term. I use AlibreCAM in my home
> shop, and it has an EMC post processor. You can check out their tutorials
> on YouTube.
> Cheers, jim
>
>
Igor,
"Inexpensive" CAD CAM is a very relative term. I use AlibreCAM in my home
shop, and it has an EMC post processor. You can check out their tutorials on
YouTube.
Cheers, jim
- Original Message -
From: Igor Chudov
To: Enhanced Machine Controller (EMC)
Sent: Tue May 31 00:19:36 201
Example wiring diagrams from EMC2 supported hardware vendors is always a
welcomed addition to a website. That's just my opinion...
- Original Message -
From: Peter C. Wallace
To: Enhanced Machine Controller (EMC)
Sent: Fri Apr 22 11:20:15 2011
Subject: Re: [Emc-users] Motion control ca
Rob,
It seems that your choice of amplifier model is going to determine your choice
of EMC2 supported controller. I recently completed building a CNC mill using
an Intel D510MO and Jon's Pico Systems PPMC board set, which was used because
my amplifiers required a +/- 10VDC analog velocity input
All,
I have to agree with Peter.
EMC2 has allowed me, as a hobbyist, to build an affordable CAD > CAM > post
processor > CNC system that rivals the big name ones I use in my workplace.
Tool tables, pre-setter, homing, coolant, cutter comp, etc.
I have huge respect for the intellectual curiosit
Here is a combination that works for me: Intel D510MO board with 2.4.6 EMC2.
Using a PicoPSU, memory, and 4G SATA SSD the whole system is small, cheap, and
reliable.
Why get frustrated with untested motherboards?
Cheers,
Jim
-Original Message-
From: sam sokolik [mailto:sa...@empirescreen
I have to agree with Brian. With the Axis interface and a cheap rubberized
keyboard you have the ability to jog with the keys he mentioned. Plus, since
it is the default set up, you can spend less time toying with config files and
more time making chips!
Jim
-Original Message-
From: B
Wallace,
On the other hand if your servo drives require a +/- 10VDC analog input then it
is hard to beat this combination in my opinion: a Pico Systems PPMC motherboard
with a DAC, ENC, and DIO running off of an Intel D510MO.
I am delighted with mine.
Jim
-Original Message-
From: Kirk
If you don't want to "wait" you can always use the $80 Intel D510MO with an $80
4Gb SATA flash drive. It's got a parallel port header and PCI slot, and works
with EMC2 just fine.
Jim
- Original Message -
From: Edward Bernard
To: Enhanced Machine Controller (EMC)
Sent: Sun Feb 06 13:16
Craig,
Although not a parallel port card, the Intel D510MO motherboard now works well
with EMC2.4.6 and above. It's low power and inexpensive too.
Jim
- Original Message -
From: craig
To: Enhanced Machine Controller (EMC)
Sent: Sat Jan 29 17:07:28 2011
Subject: Re: [Emc-users] Parall
Happy belated new year everybody.
On EMC2.4.6 using the Axis interface on a machine that has linear and angular
axes, how can I change the range of the slider labeled "Max Velocity"? The
other sliders, like Max Angular Velocity or Min Linear Velocity, are all
configured in the INI file > Disp
To all proud new owners of a D510MO motherboard: did you install EMC2.4.6 from
a live CD?
If so, what was the source, LinuxCNC.org?
Thanks!
Jim
This communication is for the use of the intended recipient only. It may
contain information that is privileged and co
Caner,
I had a similar situation with my servo amps and I found out that my system was
a cascaded position-velocity loop. I suspect that is what yours is too. That
means that my external amp, which closes a velocity loop, is nested inside of
EMC2, which closes a position loop.
For your Toshib
To All,
There is a non-qwerty keyboard (like most CNC keyboards) called the OIX 5072-P
Description: Sealed NEMA 4X Industrial Keyboard with Wide-Spaced Keys for
Gloved Hands, PS/2, Black
>From http://www.cyberresearch.com
It is not cheap, but it is bullet-proof.
Cheers,
Jim
-Original Messa
For us servo folks out there, here are my two cents for what their worth:
Tuning is WAY more complicated than I thought several months ago (you were
absolutely right Jon). It is not a chili recipe where a pinch of D in your PI
makes it the most tasty! After crashing my mill twice and breaking
It looks like there's more than one way to get Z0. For what it's worth, here
is how I do it on our Haas mill. It is also how I plan on doing touch off and
tool pre-setting on my EMC2 mill:
First, to use this method you must measure tool length using a tool holder
mounting fixture and height ga
mc-users] 5i20 Servo and General Input / Output
>
> On 09/29/2010 06:32 AM, James Louis wrote:
>> Slightly off topic: Speaking of the Mesa 5i23 (and forgive me for weaving 2
>> threads together, but . . .) has anybody ever used the PC104 version of this
>> card?
Slightly off topic: Speaking of the Mesa 5i23 (and forgive me for weaving 2
threads together, but . . .) has anybody ever used the PC104 version of this
card? The reason I ask is because a company called Axiomtek makes a
touchscreen with a PC104 port. The combined hardware part numbers would b
ll
screw below.
--dg
At 12:23 PM -0500 9/21/10, James Louis wrote:
>Dale,
>
>Do you have any pictures of the solenoid available? I'm curious
>about how this can be used for a Z-axis. It sounds interesting.
>
>Jim
>
>-Original Message-
>From: Dale Grover [
Dale,
Do you have any pictures of the solenoid available? I'm curious about how this
can be used for a Z-axis. It sounds interesting.
Jim
-Original Message-
From: Dale Grover [mailto:dgro...@redcedar.com]
Sent: Tuesday, September 21, 2010 10:58 AM
To: EMC User List
Subject: [Emc-users
Igor,
My servo drives are Yaskawa and it is my understanding that they close the
speed and current loops, and EMC2 closes the position loop. It is important
that the outside loop (position) be at least, if not more responsive, than the
middle loop (speed). Maybe my settings will help you:
E
This past CNC Workshop in Ann Arbor, Michigan had a small touchscreen EMC2
controller on display at the Pico Systems booth. It used an interface called
"Touchy" and might be just what you're looking for, but it is not released yet.
I liked it a lot.
Jim
-Original Message-
From: Neil Ba
Hello everyone. I had this on the forum for a while: This question goes out to
any "servo loop" experts out there in EMC2 world.
I understand that EMC2 uses PID to form a control loop when using servomotors,
but . . .
what if you use a drive that already has its own loop? For example, my machin
names to 1 pin
James Louis wrote:
> Jon is right, you cannot. Unless you are running pre-2.2.x EMC2.
> Quote from http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?UPDATING:
>
> 3.4. double-linking of pins is now treated as an error
> halcmd and hal_link() now refuse to link an already-l
Jon is right, you cannot. Unless you are running pre-2.2.x EMC2. Quote from
http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?UPDATING:
3.4. double-linking of pins is now treated as an error
halcmd and hal_link() now refuse to link an already-linked pin. This
immediately diagnoses configuration erro
Controller (EMC)
Subject: Re: [Emc-users] Assigning 2 signal names to 1 pin
On 23 July 2010 13:27, James Louis wrote:
>
> Thanks for the reply Kirk. Having explained it, would you (or anyone) mind
> translating the following generic sample to "net" without deleting any signal
u, 2010-07-22 at 17:53 -0500, James Louis wrote:
> Thanks Andy! I'll try this, but I have a concern:
> In either case one of the signal names goes away, right?
> Xhome or Xmaxlim gets deleted one way or another, so 2 signal names cannot be
> assigned to a single pin.
>
>
co.uk]
Sent: Thursday, July 22, 2010 4:03 PM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] Assigning 2 signal names to 1 pin
On 22 July 2010 21:44, James Louis wrote:
> Here is the problem: After upgrading to EMC2.3.5. I get an error saying I
> cannot assign 2 signal nam
Hello all!
This is my first post, so if this question has been answered in the archives
just point to it nicely.
So first off here are my machine specs:
Interface: Pico Systems PPMC (ENC, DAC, DIO)
Motors: Yaskawa SGM-0xA31x series (100, 200, 400 watt)
Drives: Yaskawa SGDA-0xAS series
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