Ok this driving me nuts!!
I have 7i43 and I have opto isolated drives for my steppers. I want to connect
5V to +ve side of the opto led and connect the 7i43 to the -ve side. In one
state i.e. NO step the 7i43 output sits at 5V in the other state Step the
7i43 sinks the LED current and the
Using the keyboard with the default setup, I can jog all three axes
simultaneously using the PgUp/PgDn for Z, Rt/Lt arrows for X, and up/Dn
arrows for Y.
On Sun, Feb 13, 2011 at 12:08 AM, Igor Chudov ichu...@gmail.com wrote:
This is what I use
In my continuing search to get temperature information into the computer
at a reasonable cost I came across a neat thing called a multiplexer.
I'm sure all of you know about them all ready :) but I'm a little slow
in electronics. Anyway my thought is to use a multiplexer to get 4
thermocouples
On 13 February 2011 15:59, John Thornton bjt...@gmail.com wrote:
In my continuing search to get temperature information into the computer
at a reasonable cost I came across a neat thing called a multiplexer.
There is a multiplexer in the Arduino, as it only has one real A to D stage.
In fact,
First off I don't have a clue as to how to do that LOL and next I wonder
how you deal with the need for a cold junction reference for the
thermocouple without something like the MAX6675.
John
andy pugh wrote:
On 13 February 2011 15:59, John Thorntonbjt...@gmail.com wrote:
In my
On 13 February 2011 16:16, John Thornton bjt...@gmail.com wrote:
First off I don't have a clue as to how to do that LOL
There are published sets of polynomial coefficients, for example:
http://www.facstaff.bucknell.edu/mastascu/elessonshtml/Sensors/TempThermCpl.html
and next I wonder
how you
On Sun, 13 Feb 2011, Andy Ibbotson wrote:
Date: Sun, 13 Feb 2011 09:45:43 -
From: Andy Ibbotson andyi_w...@btinternet.com
Reply-To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Subject:
On Sun, 2011-02-13 at 07:59 -0600, John Thornton wrote:
use a multiplexer to get 4 thermocouples into one MAX6675
Given the microvolt-level signals from a thermocouple, it's not clear
the signal emerging from a multiplexer would bear more than a casual
relation to the actual temperature. With
That's way beyond my math skills Andy :)
John
andy pugh wrote:
On 13 February 2011 16:16, John Thorntonbjt...@gmail.com wrote:
First off I don't have a clue as to how to do that LOL
There are published sets of polynomial coefficients, for example:
Looking at what this guy sells from down under somewhere it seems to
have only 4 things on the circuit board a MAX6675, ADG608, and two caps
I think. Judging from the cost of the ADG608 (4x all the other chips) I
assume it is better at handling something like a thermocouple input. But
that is
On 2/13/2011 8:59 AM, John Thornton wrote:
In my continuing search to get temperature information into the computer
at a reasonable cost I came across a neat thing called a multiplexer.
I'm sure all of you know about them all ready :) but I'm a little slow
in electronics. Anyway my thought is
HI John,
Here are two links that might help:
This one is an off the shelf Arduino shield that uses
the Max6675 with an ADG608 Multiplexer IC
http://www.oceancontrols.com.au/KTA-259.html
This one is an application note from AD about
thermocouples. See page 7 for multiplexer hints.
On Sat, Feb 12, 2011 at 02:18:16PM -0800, Matthew Ireland wrote:
I have an HNC, just like Radek's, and like him I kept the original amps from
the mark century control. It worked painlessly.
I would upgrade them if I could, because they are large and need their own
cabinet. The price was just
I'm measuring the cabinet temperature of a smoker with a range of 100F -
350F and internal food temperatures from 40F to 250F or so. The
thermocouples I'm using are Auber Instruments smoker and meat
thermocouples. All the temperature devices are in the same Arduino Uno
enclosure except for the
Hi Steve,
the oceancontrols one is the one that showed me that a mux could be used
and is what started the holy grail search for the correct mux :)
awallin also gave me the same link with the good info on multiplexing a
thermocouple.
Thanks
John
Steve Stallings wrote:
HI John,
Here are
thanks Peter
--
From: Peter C. Wallace p...@mesanet.com
Sent: Sunday, February 13, 2011 2:35 PM
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] MESA 7i43 setup
On Sun, 13 Feb 2011, Andy Ibbotson
I would like to narrow the focus on the AVR wiki page. I marked the bits
I would like to move:
http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?AVR
I started a bridge page to give the moved bits a home:
http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Bridges_-_Half,_Full,_Three_Phase
Please edit or add
Hi
I am not strong in code so i want to be make sure, is your Joypad let you
to jog CNC machine, in manual mode, simultaneously in 3 axis or even 5
axis etc.?
Thanks
Aram
This is what I use
Just a thought - if you are using an Arduino for control,
wouldn't it be easier to use glass bead thermistors rather
than thermocouples. This type are used by the Reprap
project
http://datasheet.octopart.com/01T1002FP-Vishay-datasheet-1103.pdf
and seem to be accurate to about 1% without
How do I go about finding emc expert to come to my warehouse. Of course I
will pay them for time.
Arch Fitters
Doug McCurtain (C.Ped)
President
-Original Message-
From: Jon Elson [mailto:el...@pico-systems.com]
Sent: Saturday, February 12, 2011 12:36 PM
To: Enhanced Machine Controller
On Sun, 2011-02-13 at 15:18 -0800, Doug wrote:
How do I go about finding emc expert to come to my warehouse. Of course I
will pay them for time.
Arch Fitters
Doug McCurtain (C.Ped)
President
I assume you are in Gresham, Oregon? I wouldn't mind helping but I'm in
California.
--
Kirk
mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users
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On 2/13/2011 12:41 PM, John Thornton wrote:
I'm measuring the cabinet temperature of a smoker with a range of 100F -
350F and internal food temperatures from 40F to 250F or so. The
thermocouples I'm using are Auber Instruments smoker and meat
thermocouples. All the temperature devices are in
On 2/8/2011 11:11 AM, Peter C. Wallace wrote:
On Tue, 8 Feb 2011, Kent A. Reed wrote:
Date: Tue, 08 Feb 2011 10:51:18 -0500
From: Kent A. Reedknbr...@erols.com
Reply-To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
To: Enhanced Machine Controller
On 2/8/2011 11:13 AM, Kyle Kerr wrote:
I know I have missed out on the list for a good long time, but, I
thought I recalled that usb read/writes were the worst thing one could
try to do while using EMC2. I realize that it was done as stress
testing. I just thought those read/writes were pretty
Doug,
I know the idea of doing a RDP thing is very attractive, but you want a
warm body on site if you are fine tuning things.
How it sounds, and what it looks like up close is impossible to
distinguish via a RDP setup.
Dave
On 2/13/2011 6:55 PM, Doug wrote:
How would I do that. I think we
I got to spend some quality time today pulling together a bunch of code
revisions to my Arduino-based pendant design, which has a 25-position
keypad, MPG, and 4x20-character LCD that talks to HAL over the Arduino's
serial-over-USB connection. I made a quick video showing the current state
of the
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On Sun, 2011-02-13 at 15:55 -0800, Doug wrote:
How would I do that. I think we can install some type of RDP. What would
your hourly rate be?
Arch Fitters
Doug McCurtain (C.Ped)
President
I was hoping that someone on the list would be in your area, qualified
and willing to come bye. When
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