Re: [Emc-users] USB to Ethernet

[John Dammeyer]

> From: Jérémie Tarot [mailto:silopo...@gmail.com]
> Le mar. 16 nov. 2021 � 08:21, John Dammeyer  a
> �crit :
> 
> > Would this type of USB 3.0 to Ethernet work with Ethernet supported MESA
> > boards?
> > https://www.amazon.ca/dp/B00AQM8586?linkCode=gs2 <
> > https://www.amazon.ca/dp/B00AQM8586?linkCode=gs2=hotoge0c-20>
> > =hotoge0c-20
> >
> 
> 
> I can't see why it wouldn't... But not sure I'd want to do that! Already
> not fond of USB, so a USB converter... 

I totally agree but lately it seems cheap laptops don't come with Ethernet.  I 
want something that I can install LinuxCNC on and connect to my spare 7i92H and 
a BoB just to play around without having to run into the lab and use the Pi4 
version.  It requires HDMI screen, keyboard and mouse.  I had installed 
LinuxCNC onto an older laptop (32 bit) but it turned out to have too many 
incompatibilities with the newer versions of Linux etc.

Anyway, at the moment I'm having big issues with one of the parts of the Probe 
screen 
https://forum.linuxcnc.org/49-basic-configuration/29187-work-with-probe?start=510#226624

Ultimately a python call to self.gcode(s) with a series of commands that works 
with the MDI but not with the function call.  

And the one Ethernet port on the machine is connected to the MESA board.  I 
don't have reliable WiFi so a USB to Ethernet would be one way to get into it.  
Although working with the probe I'd rather be right there with my hand on the 
ESTOP.

John




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Re: [Emc-users] USB to Ethernet

[Jérémie Tarot]

Le mar. 16 nov. 2021 à 08:21, John Dammeyer  a
écrit :

> Would this type of USB 3.0 to Ethernet work with Ethernet supported MESA
> boards?
> https://www.amazon.ca/dp/B00AQM8586?linkCode=gs2 <
> https://www.amazon.ca/dp/B00AQM8586?linkCode=gs2=hotoge0c-20>
> =hotoge0c-20
>


I can't see why it wouldn't... But not sure I'd want to do that! Already
not fond of USB, so a USB converter... 

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[Emc-users] USB to Ethernet

[John Dammeyer]

Would this type of USB 3.0 to Ethernet work with Ethernet supported MESA 
boards? 
https://www.amazon.ca/dp/B00AQM8586?linkCode=gs2 
 
=hotoge0c-20
 
John
 

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Re: [Emc-users] 7i90 ethernet link

[Gene Heskett]

On Monday 15 November 2021 11:44:56 dave engvall wrote:

> Is anyone using ethernet as a link between linuxcnc and a 7i90?
> Comments and/help appreciated
>
> Dave
>
Never heard of it Dave, but for an rpi, the spi interface is the fastest
by quite a bit. Both the rpi3 and the rpi4 can talk to a 7i90, writing
to it at:

pi@rpi4:/media/pi/workspace $ linuxcnc -l
LINUXCNC - 2.9.0-pre0-5020-g9f0ad4c8e
Machine configuration directory is '/home/pi/linuxcnc/configs/sheldon-lathe'
Machine configuration file is '7i90-axis.ini'
Starting LinuxCNC...
Found file(REL): ./hm2-7i90-stepper.hal
Note: Using POSIX realtime
hm2: loading Mesa HostMot2 driver version 0.15
hm2_rpspi: Platform: Raspberry Pi 4 Model B Rev 1.1
hm2_rpspi: Base address 0xfe00 size 0x0180
hm2_rpspi: Mapped peripherals from 0xfe00 (size 0x0180) to 
gpio:0x0xb420, spi:0x0xb4204000, aux:0x0xb4215000
hm2_rpspi: SPI0/CE0 clock rate: 41666000/2500 Hz, VPU clock rate: 5 
Hz
hm2_rpspi: SPI0/CE0 write clock rate calculated: 4166 Hz (clkdiv=12) # to 
the 7i90
hm2_rpspi: SPI0/CE0 read clock rate calculated: 2500 Hz (clkdiv=20) # from 
the 7i90
hm2_rpspi: SPI0/CE0 Valid cookie matched
hm2_rpspi: SPI0/CE0 Base: hm2_7i90.0

And does it as 4, 8 bit packets at a time. Interesting to watch, on a 
4 trace 350 mhz scope, Siglents best.

Take care and stay well Dave.

Cheers, Gene Heskett.
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page 


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Re: [Emc-users] 7i90 ethernet link

[Sam Sokolik]

I think...  It is only smart serial.  (not ethernet)

On Mon, Nov 15, 2021 at 10:48 AM dave engvall  wrote:

> Is anyone using ethernet as a link between linuxcnc and a 7i90?
> Comments and/help appreciated
>
> Dave
>
>
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Re: [Emc-users] Power Draw Bar

[dave engvall]

In converting my Mazak I just tied a toggle switch to the control line 
for the valve that ran the hydraulics for tool release. One hand on the 
switch and one on the tool. Rather crude but it worked until the 
belleville stack broke.


Dave

On 11/14/21 4:02 AM, Roland Jollivet wrote:

On a BT30 spindle;
A button the front of the sindle, drawbar is depressed only as long as you
hold the button in.



On Sun, 14 Nov 2021 at 08:03, John Dammeyer  wrote:


Quick question.

On commercial machines that have buttons to load or unload the tool by
actuating the drawbar how are the buttons arranged?

Are there two?  One for Load and one for Unload?  Are they arranged
vertically or horizontally?

If vertically does the upper one load or unload?  If horizontally does the
one on the right load or unload?

Thanks
John


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[Emc-users] 7i90 ethernet link

[dave engvall]

Is anyone using ethernet as a link between linuxcnc and a 7i90?
Comments and/help appreciated

Dave


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Re: [Emc-users] Power Draw Bar

[Todd Zuercher]

All of our big commercial CNC routers have a single tool release button.  Our 
Anderson (Omnitech), Komo, and Northwood, all have a single momentary switch 
that only opens the drawbar while you hold the button down.  Our SCM Routech, 
is a little different and the momentary switch is used as an input to the PLC, 
and behaves like a toggle, one press releases, second press grabs the tool.  
And all of them have multiple interlocks through their PLCs to prevent using 
the manual tool releases under normal circumstances, involving multiple button 
presses/mode changes, and even m-code inputs to enable the manual tool release. 
 It would be difficult or even impossible to manually change a tool during 
normal execution of a program on most of these machines.  

The location of the tool release button is varied.  Some machines have the 
button on the spindle.  Some have it on the tool carousel.  Some are on the 
pendant.

I think there might be a procedure for doing a manual change during program 
execution on our Komos but have never used it.  The manual procedure would be 
intended for using large aggregate tooling that might be too large to ride in 
the tool changer carousel.  The others I am not sure have any way.  Our SCM has 
an M-code to enable a "special" tool change, but I think that may just disable 
some of the tool pockets.

Todd Zuercher
P. Graham Dunn Inc.
630 Henry Street 
Dalton, Ohio 44618
Phone:  (330)828-2105ext. 2031

-Original Message-
From: Matthew Herd  
Sent: Sunday, November 14, 2021 8:21 AM
To: Enhanced Machine Controller (EMC) 
Subject: Re: [Emc-users] Power Draw Bar

[EXTERNAL EMAIL] Be sure links are safe.

I believe (but could be wrong) that Haas machines use a single momentary switch 
on the head to release the drawbar.

Matthew Herd

> On Nov 14, 2021, at 8:18 AM, ken.stra...@gmail.com wrote:
>
> I'm unsure of commercial machines but I use only a foot switch on my 
> Tormach. That frees both hands to remove/insert the tool.
>
> -Original Message-
> From: John Dammeyer 
> Sent: November 14, 2021 12:59 AM
> To: Enhanced Machine Controller (EMC) 
> 
> Subject: [Emc-users] Power Draw Bar
>
> Quick question.
>
> On commercial machines that have buttons to load or unload the tool by 
> actuating the drawbar how are the buttons arranged?
>
> Are there two?  One for Load and one for Unload?  Are they arranged 
> vertically or horizontally?
>
> If vertically does the upper one load or unload?  If horizontally does 
> the one on the right load or unload?
>
> Thanks
> John
>
>
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