Hi,
Port 502 is assigned to Modbus, so that's what slaves should use by default.
Cheers,
Peter.
On 29/02/2012 9:40 PM, Mark Wendt wrote:
On 02/28/2012 05:21 PM, Kirk Wallace wrote:
... snip
I think I know a little more now. I was able to bring up
loadusr classicladder --modslave (I
to the conversation. ;-)
Mark
On 02/29/2012 06:17 AM, Peter Homann wrote:
Hi Mark,
Oops, sorry I misunderstood the conversation.
Cheers,
Peter
On 29/02/2012 10:15 PM, Mark Wendt wrote:
Peter,
I was referring to Kirk's not seeing port 1502 after he assigned it in
the loadusr statement, and how
Hi,
If you don't want to or can't use Modbus, you could use a DC-03 DigiSpeed
(that I sell).
http://www.homanndesigns.com/store/index.php?main_page=product_infocPath=1products_id=21
It accepts a PWM waveform where the duty cycle is converted into an analog
control voltage hat replaces the
An BoB without opto-isolation will give you the same 24mA rail to rail output.
I just didn't see a need to pay for something that's not needed.
But then, it's your choice. :)
Cheers,
Peter
On 16/04/2012 7:17 PM, gene heskett wrote:
On Monday, April 16, 2012 05:11:33 AM Peter did opine:
Hi
for sleeep.
Cheers,
Peter
On 17/04/2012 1:07 AM, gene heskett wrote:
On Monday, April 16, 2012 10:23:30 AM Peter Homann did opine:
An BoB without opto-isolation will give you the same 24mA rail to rail
output.
You should refer to it by the URL, is this it?
http://www.homanndesigns.com/store
Oh, I don't think it is that cheap, just the west is so expensive. UPS want
$70+ to ship 500g by air.
I get charged US$80.00 for 0.4m3 @ 350kgs shipped by sea from China. So that's
$200.00 per cubic metre.
A 40ft container has a volume of 67.7 m3. So that's $13,540.00 for shipping a
On 17/04/2012 2:17 AM, gene wrote:
Probably the DC05 combo, as it will be driving the board in a 7x12.
Basically, the DC-05 is a DC-03 but without the microprocessor. The
microprocessor' main job is to convert a low frequency PWM to a higher one to
cross the opto-isolator. It means that
Better to hear from Mariss himself.
-
It's a give and take kind of situation:
1) For the same peak current, a microstepped motor will have 71% (1/sqrt 2)
the holding torque of a full-step drive. This is because
Hi Kirk,
The answer is below. Mariss, puts a lot into the public domain. That way it's
prior art if anyone tries to patent it.
---
The drive generates a reference voltage proportional to speed. This voltage is
sensed by an offset/gain circuit that becomes linear
Jon,
IIRC correctly the pre CPLD drives did not have full step morphing. Also the
new drives have a much improved recirculation sequencing. This means that heat
sinking requirements for the drives are greatly reduced.
Also the advantage of the CPLD design is that it makes it harder to reverse
And I was thinking that LinuxCNC was deemed to be a virus. :)
Cheers,
Peter
On 10/05/2012 5:53 PM, Lester Caine wrote:
br...@majorsci.com wrote:
Have somebody known why LinuxCNC website is always compromised on
Google search?
You can find the attachment about this issue.
Hi Dean,
I don't know why you are surprised. My understanding is that the Mach
pulse generation engine sits under Windows, getting the timing interrupt
very early, before windows has a change to waste it.
I see no reason why it would not be as good. That said I haven't compared
the two.
At the
Hi Kirk,
Nice table. The data for Mach3 is incorrect in many columns. You really need
to compare it to the releases version 2.48 as the 1.48 is quite old and out of
date.
It does 100K steps/sec on the parallel port. Using TCP/IP add on hardware
(Gecko G100) it can do 4M step/second.
Using
Hi Jon,
You may want to ask Art to have another look. These days there are plug-ins
that are written that talk to various type of hardware. You would probably
have to write the plug-in yourself with Arts help.
It may be worth considering.
Cheers,
Peter.
Jon Elson wrote:
Stephen Wille
Hi,
Just a quick not before I head bush for the Christmas camping trip.
For additional I/O via Modbus have a look at the ModIO. It has discrete inputs
and outputs, analog inputs, a 20x4 character LCD interface, plus a few other
interfaces.
Hi Lester,
The DigiSpeed-GX board contains an isolated 5V to 15V dc/dc converter. It
accepts a PWM signal and converts it to an isolated DC control voltage
suitable for Asian DC motor controllers, and VFDs.
http://homanndesigns.com/store/index.php?main_page=product_infocPath=1products_id=21
Jim,
Here is arguably the most advanced DIY pick and place machine built. There
is a long discussion thread on the DIY-CNC yahoo group.
http://ph.groups.yahoo.com/group/DIY-CNC/photos/browse/498b
http://ph.groups.yahoo.com/group/DIY-CNC/photos/browse/235e
Hi,
I don't know a lot about how EMC works, but I do know quite a lot about
Modbus.
Modbus data basically consists of 2 data types, bits (discretes an coils)
and 16 bit words (input, and holding registers) There are also special
representations of multiple registers (flloating point etc).
The
Hi Kirk,
A couple of things.
The ModIO I sent you has a RS232-485 converter built in. With this you can run
a serial cable from the ModIO to the PC, then run additional Modbus devices
from the RS485 terminals on the ModIO. It saves from needing an external
converter.
When using RS485 I
Rather than writing another serial interface why not use Modbus and a
device like the ModIO
http://homanndesigns.com/store/index.php?main_page=product_infocPath=2products_id=4
The Modbus protocol is extremely robust and has a number of saftey
features built in.
Cheers,
Peter.
Kirk Wallace wrote:
There is a ModBus feature in Classic Ladder, but it seems to me that an
HAL component specifically for the ModIO peripheral would be useful.
ModBus may be a standard, but peripherals that use ModBus vary widely.
My thinking is that each peripheral needs its own HAL
Hi Gene,
Have a look at the DC-03 Digispeed that I design and sell. It converts a PWM
signal into an isolated control voltage, and has quite small form factor.
http://www.homanndesigns.com/store/index.php?main_page=product_infocPath=1products_id=21
If your PWM signal has a base frequency of 1K
and
release times for the relays are 3mS maximum.
Cheers,
Peter
On 15/03/2014 3:13 PM, Gene Heskett wrote:
On Friday 14 March 2014 23:53:24 Peter Homann did opine:
Hi Gene,
Have a look at the DC-03 Digispeed that I design and sell. It converts a
PWM signal into an isolated control
Hi,
If you are after closed loop spindle control for a KBIC style treadmill
controller a 5Hz PWM signal driving a PWM to analog converter is unlikely to
provide a satisfying result. Most close loop control systems use a 1KHz update
rate. You may get adequate results with a 100Hz update but 5Hz
Hi Gene,
Sorry, missed your reply. I was in the shed trying to do a bit more on my mill
conversion.
http://www.cnczone.com/forums/benchtop-machines/158266-homann-designs-tm20lv-bf20-g0704-conversion.html
Cheers,
Peter
On 16/03/2014 5:49 PM, Gene Heskett wrote:
On Sunday 16 March 2014
Hi Kirk,
That looks really snazzy. One thing to note is that the ModIO can work as
a RS-232 to RS485 converter as well, so you can daisy chain other Modbus
devices such as a VFD or more ModIOs, etc.
On the Engineering notes page is EN007 which depicts the jumper setting
for utilising the ModIOs
Yes, in Australia, down is ON.
Cheers,
Peter.
On 8/03/2011 10:36 PM, andy pugh wrote:
On 8 March 2011 10:56, Mark Wendtmark.we...@nrl.navy.mil wrote:
which is typically how we as humans think about
light switches - UP is ON, DOWN is OFF.
Actually, that's a US thing. (or at least a
Hi Kirk,
Unfortunately not. It does an an i2c interface, but found it too unleliable
for industrial control applications.
Cheers,
Peter.
On 11/03/2011 4:15 AM, Kirk Wallace wrote:
Peter H., is there a way to get an SPI feature on the ModIO. I have a
tool changer that will use an SPI
gene heskett wrote:
On Wednesday, March 16, 2011 10:19:43 PM Kirk Wallace did opine:
In either event, as you say above, the control from the computer needs to
be isolated, the KBIC and look-a-likes all seem to have line voltages on
the control circuitry. I use a pwm signal for speed
Hi,
You could always just purchase one of these. :)
http://homanndesigns.com/store/index.php?main_page=product_infocPath=1products_id=38
or
http://homanndesigns.com/store/index.php?main_page=product_infocPath=1products_id=21
It does exactly what you are after.
Cheers,
Peter.
On 23/06/2011
Hi Kirk,
These VFDs have a few issues. A Few people get them and they don't work at
all. Some have had components floating around. That said a lot, and I mean a
lot of people buy these along with the chinese high speed spindles.
Also their modbus interface is broken. They missinterpreted the
Hi Hubert,
You need to be careful connecting to the pot inputs of a lot of these type of
speed controllers. The usually put a DC voltage of anywhere between 7V to 15V
across the potentiometer. The kicker is that this voltage is generated via a
zener shunt regulator and the control voltage is
Hi,
The problem is that the protocol used by the Huanyang HY02D223B is not Modbus
compliant. As I believe it, the implementers of the Modbus software in the VFD
have not understood the Modbus spec, and incorrectly implemented. it.
From a post on the Machsupport forum I wrote;
Jon,
I believe that there is an encoderless technique that uses the hall effect
sensors and reading the back emf.
Maybe that's what's being talked about.
Cheers,
Peter
Jon Elson wrote:
Flying Electron wrote:
I don't know much about servos at all, but I was under the impression
that
Hi,
It doesn't have one. You could use this one instead.
http://www.newegg.com/Product/Product.aspx?Item=N82E16813131396
Cheers,
Peter.
Speaker To-Dirt wrote:
Hi Andy:
I may be showing my ignorance here, but while searching on your
motherboard, because I'm about to do the same thing
Hi Igor,
Sheetcam is perfect for the type of 2.5 D maching you are talking about.
http://homanndesigns.com/store/index.php?main_page=product_infocPath=7products_id=9
Cheers,
Peter.
Igor Chudov wrote:
Dave, can Sheetcam do basic 2.5 D milling (such as drilling holes,
pocketing etc).
i
I've had mine sitting on the shelf gathering dust for a few months now. Too
busy to look at it at the moment.
Too many toys, so little time.
Cheers,
Peter
On 18/07/2012 1:55 PM, Jack Coats wrote:
Newark Electronics. Ordered it some time ago. They charged my card
when they were available
Hi Gene,
It costs me about $80 for a laser cut stencil. The process of applying the
paste is shown here.
http://www.homanndesigns.com/index.php?option=com_contentview=articleid=54:manual-process-for-applying-solder-paste-via-a-stencilcatid=35:smtItemid=55
It takes less than 90 seconds to apply
Ye Steve is correct. I machine the soft plastic in these cases. The spindle
speed is 1000rpm or less with a single flute 1/8 bit.
http://homanndesigns.com/index.php?option=com_contentview=articleid=56:mp-03-cnc-pendant-kitcatid=34:cnc-projectsItemid=55
of a startup company doing things right. I wish
I'd considered buying one of their machines when they first started up.
Cheers,
Peter
On 10/05/2015 1:21 PM, Gene Heskett wrote:
On Saturday 09 May 2015 22:39:24 Peter Homann wrote:
Hi Gene,
Yeah, it is does not always do a great job. It takes
indeed. Food for an experiment?
Cheers,
Peter
Peter Homann
http://www.homanndesigns.com/store
Cheers, Gene Heskett
---
This email has been checked for viruses by Avast antivirus software.
http://www.avast.com
--
One
, Gene Heskett wrote:
On Saturday 09 May 2015 05:43:10 Peter Homann wrote:
Hi,
This is the soldering robot I have. It is based on a general purpose
robot, mainly used for applying glues, pastes etc. Mine has a
soldering head on it.
http://homanndesigns.com/index.php?option=com_contentview
Hi,
This is the soldering robot I have. It is based on a general purpose robot,
mainly used for applying glues, pastes etc. Mine has a soldering head on it.
http://homanndesigns.com/index.php?option=com_contentview=articleid=53:selective-soldering-machine-mach3-catid=35:smtItemid=55
I year or
Hey Dave,
Thanks for looking out for me. I'd be lost without you. :)
Peter
On 23/06/2015 12:07 AM, Dave Cole wrote:
I was referring to Peter Homann, who first made the comment.He is
well connected to the Mach3/4 world.
I don't try and stay on top of what is going on in the Mach3/4 world
Hi Roland,
The Gecko drives only require 3ma -4ma to drive the optos
Cheers,
Peter
On 01-Oct-15 4:01 PM, Roland Jollivet wrote:
> Ok, I over-reacted..
> The parallel port has always been designed to sink, not source. So while I
> can get 5V from the USB port or the CNC machine, I can't get
It depends on the drive that you have.
Geckodrives morph from 10 microstepping to full stepping by the time the motor
reaches a few revs per second, so no torque is lost. You get the best of both
worlds, very smooth slow speed movement and the torque of full stepping.
Also, a lot of people do
Hi,
I haven't checked if its been mentioned yet but Sheetcam will take a drill
file and produce a Gcode file from it.
http://www.sheetcam.com/features/drilling
I used it here to make a PCB jig.
http://www.homanndesigns.com/info/index.php/projects/35-smt/53-selective-soldering-machine-mach3-
Hi,
One of the advantages of Geckodrives over other drives is that they morph from
microstepping to full stepping after the speed gets above a
a few RPS.
That way, at low speed you get very smooth motion, and at high speed the=re is
no torque lose due to microstepping.
BTW, microstepping
Hi John,
If you have Sheetcam, I'm fairly sure that it can take in drill files
and produce G code for Mach3 or LinuxCNC.
Cheers,
Peter
On 2/11/2022 8:19 am, John Dammeyer wrote:
I needed a small PC board. I converted the short drill file .txt over to G-Code .nc
or .tap. Took a few
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