Re: [Emc-users] Doc puzzle

[Gene Heskett]

On Sunday 01 November 2020 20:28:00 Andy Pugh wrote:

> > On 1 Nov 2020, at 22:53, Gene Heskett  wrote:
> >
> > So what does the L option do?
>
> It allows you to repeat the cycle.
>
> Described in the canned cycle intro.
>
> http://linuxcnc.org/docs/2.8/html/gcode/g-code.html#gcode:g80-g89

And is of no use unless the holes are in a straight line. My use of G1 
F40 @2.5000 ^degrees between the g83's is still a single invocation at a 
time then.  And my guess was correct.

Thank you Andy.

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)
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] Doc puzzle

[Andy Pugh]

> On 1 Nov 2020, at 22:53, Gene Heskett  wrote:
> 
> So what does the L option do?

It allows you to repeat the cycle. 

Described in the canned cycle intro. 

http://linuxcnc.org/docs/2.8/html/gcode/g-code.html#gcode:g80-g89
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Re: [Emc-users] EPP

[Peter C. Wallace]

On Sun, 1 Nov 2020, dave engvall wrote:


Date: Sun, 1 Nov 2020 15:16:06 -0800
From: dave engvall 
Reply-To: "Enhanced Machine Controller (EMC)"

To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] EPP

Middle of afternoon and I still need coffee. ;-) Let's try 7i43. Tnx.


The 7I43 flash memory is not used with LinuxCNC, The firmware is alwaws loaded
at LinuxCNC startup



On 11/1/20 12:16 PM, Eric Keller wrote:

7i37 is a daughter card and can't be flashed.


On Sun, Nov 1, 2020 at 3:03 PM dave engvall  wrote:



On 11/1/20 8:18 AM, andy pugh wrote:

On Sun, 1 Nov 2020 at 16:02, dave engvall  wrote:


I have a application for a 7i37/ 7i33. In face a couple of them.
First try has been a D525 with a SIIG single pport.

Do you really mean 7i37? Or maybe 7i43?


First off I have no idea if the SIIG board works and indeed no idea of
how to test it.

If it shows up in lspci as a parallel port card that's a good start.

Does it have a Moschip chip? Those generally work.

Exactly which card do you have?


Card list:
  SIIG 1 port cyber8000 chip  lspci reports 1 port  bios says EPP
  IT 8875 lspci reports 1 serial |
pport  bios set to EPP
  LAVA lspci reports dual pport
controller A I didn't check bios
  Timedialspci reports dual IEEE1284
discussion on forum seems to say Windoze only

all of these cards except IT have fpga's.
Do I need to flash the 7i37 and then try to load the hm2-servo"
Still rather unsure about next step(s).

Upward and onward  maybe. ;-)

Dave


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Peter Wallace
Mesa Electronics

(\__/)
(='.'=) This is Bunny. Copy and paste bunny into your
(")_(") signature to help him gain world domination.



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Re: [Emc-users] EPP

[dave engvall]

Middle of afternoon and I still need coffee. ;-) Let's try 7i43. Tnx.

On 11/1/20 12:16 PM, Eric Keller wrote:

7i37 is a daughter card and can't be flashed.


On Sun, Nov 1, 2020 at 3:03 PM dave engvall  wrote:



On 11/1/20 8:18 AM, andy pugh wrote:

On Sun, 1 Nov 2020 at 16:02, dave engvall  wrote:


I have a application for a 7i37/ 7i33. In face a couple of them.
First try has been a D525 with a SIIG single pport.

Do you really mean 7i37? Or maybe 7i43?


First off I have no idea if the SIIG board works and indeed no idea of
how to test it.

If it shows up in lspci as a parallel port card that's a good start.

Does it have a Moschip chip? Those generally work.

Exactly which card do you have?


Card list:
  SIIG 1 port cyber8000 chip  lspci reports 1 port  bios says EPP
  IT 8875 lspci reports 1 serial |
pport  bios set to EPP
  LAVA lspci reports dual pport
controller A I didn't check bios
  Timedialspci reports dual IEEE1284
discussion on forum seems to say Windoze only

all of these cards except IT have fpga's.
Do I need to flash the 7i37 and then try to load the hm2-servo"
Still rather unsure about next step(s).

Upward and onward  maybe. ;-)

Dave


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[Emc-users] Doc puzzle

[Gene Heskett]

Greetings all doc writers;

Needing to use the G83 peck drilling cycle today since I was drilling a 
4.3mm hole clear thru a 1" thick slab of alu, I looked it up but found a 
puzzle, and it worked without using the L option, which I could not find 
even in the prior pages that were referenced.

So what does the L option do?

Thank you.

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)
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] EPP

[Gene Heskett]

On Sunday 01 November 2020 11:00:23 dave engvall wrote:

> Hi,
> I have a application for a 7i37/ 7i33. In face a couple of them.
> First try has been a D525 with a SIIG single pport.
> First off I have no idea if the SIIG board works and indeed no idea of
> how to test it.
>
> With Jon's ppmc there was a comm program that told one right away if
> the link was working.
> I have no idea how to do anything like that with the 7i37.
> Sorry to be so ignorant but that's life.
>
> Can someone recommend a small motherboard (if possible) that has a
> reliable EPP pport?
> The app is servos which may relax some of the constraints.

Dave, I ran the D525MW mobo on my little mill, using the D252MW's existing 
parport with a now disco'ed cnc4pc G1G breakout interface board. both on TLM 
and the micro-mill. Both are now running on a 5i25, but TLM is still on the 
same old interface plus a 2nd bob because I've added more goodies but the 
mico-mills box is now running a 4 axis 6040 gantry mill with a 7i76D to get 
enough I/O for independent home switches and other gingerbread such as the 
mister pump.

However, looking up those boards, none of the variations are intended to be 
driveb by a parport.  You need a pci card that drives those 50 pin cards.  And 
the 5i25 isn't it. Looks like you need at least a 5i20/22/23
card in your computer. The 5i23 gives you more than enough I/O to do anything 
you want on that mill, 96 I/O lines on it.  The 7i43 also looks usable with a 
parport and 50 pin daughter cards. But the level of data traffic it pushes thru 
a parport might find some parports wanting.

> In conclusion how does one test the link?

I don't know how well it works, never built it, but the linuxcnc documentation 
pdf has instructions for making and useing it.

> Once the link works the rest should be easy.
> Note: I've used 5i20/7i33 combo's.

And if thats enough i/o, it should still Just Work.  Famous last words of 
course...

> Thanks in advance
>
> Dave
>
>
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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)
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] how to control lathe spindle with a mesa 7i77 card

[Jon Elson]

On 11/01/2020 12:46 PM, Ed wrote:

On 11/1/20 10:30 AM, andy pugh wrote:
On Sun, 1 Nov 2020 at 04:43, andrew beck 
 wrote:


On a 7i76 the 0_10v is isolated from the Mesa card I 
think.  Is a 7i77
similar?  I just a bit cagy about connecting up 
electrically to the VFD

inputs.  As I don't want to blow anything.
Most VFDs have isolation between the mains and the control 
inputs.
You definitely want to make sure of this before connecting 
anything up.

(Some SCR-type motor drives do NOT have such isolation.)




Where would a Mesa SpinX1 or a Pico Spindle DAC fit in here?
The Pico Systems Spindle DAC is an 8-bit DAC with parallel 
inputs, and two other inputs that
enable either positive or negative outputs of 0-10 V.  It is 
not isolated, so depends on the

VFD to be isolated.

Jon


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Re: [Emc-users] EPP

[Eric Keller]

7i37 is a daughter card and can't be flashed.


On Sun, Nov 1, 2020 at 3:03 PM dave engvall  wrote:

>
>
> On 11/1/20 8:18 AM, andy pugh wrote:
> > On Sun, 1 Nov 2020 at 16:02, dave engvall  wrote:
> >
> >> I have a application for a 7i37/ 7i33. In face a couple of them.
> >> First try has been a D525 with a SIIG single pport.
> > Do you really mean 7i37? Or maybe 7i43?
> >
> >> First off I have no idea if the SIIG board works and indeed no idea of
> >> how to test it.
> > If it shows up in lspci as a parallel port card that's a good start.
> >
> > Does it have a Moschip chip? Those generally work.
> >
> > Exactly which card do you have?
> >
> Card list:
>  SIIG 1 port cyber8000 chip  lspci reports 1 port  bios says EPP
>  IT 8875 lspci reports 1 serial |
> pport  bios set to EPP
>  LAVA lspci reports dual pport
> controller A I didn't check bios
>  Timedialspci reports dual IEEE1284
> discussion on forum seems to say Windoze only
>
> all of these cards except IT have fpga's.
> Do I need to flash the 7i37 and then try to load the hm2-servo"
> Still rather unsure about next step(s).
>
> Upward and onward  maybe. ;-)
>
> Dave
>
>
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Re: [Emc-users] EPP

[dave engvall]

On 11/1/20 8:18 AM, andy pugh wrote:

On Sun, 1 Nov 2020 at 16:02, dave engvall  wrote:


I have a application for a 7i37/ 7i33. In face a couple of them.
First try has been a D525 with a SIIG single pport.

Do you really mean 7i37? Or maybe 7i43?


First off I have no idea if the SIIG board works and indeed no idea of
how to test it.

If it shows up in lspci as a parallel port card that's a good start.

Does it have a Moschip chip? Those generally work.

Exactly which card do you have?


Card list:
    SIIG 1 port cyber8000 chip  lspci reports 1 port  bios says EPP
    IT 8875                             lspci reports 1 serial | 
pport  bios set to EPP
    LAVA                                 lspci reports dual pport 
controller A I didn't check bios
    Timedia                                lspci reports dual IEEE1284 
discussion on forum seems to say Windoze only


all of these cards except IT have fpga's.
Do I need to flash the 7i37 and then try to load the hm2-servo"
Still rather unsure about next step(s).

Upward and onward  maybe. ;-)

Dave


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Re: [Emc-users] how to control lathe spindle with a mesa 7i77 card

[andy pugh]

On Sun, 1 Nov 2020 at 19:12, Ed  wrote:

> Where would a Mesa SpinX1 or a Pico Spindle DAC fit in here?

The Spin1X is (as I understand it) basically the PWM-to-Analog stage
from a Mesa card as a standalone board.
(The 7i76 spindle out does _not_ use PWM, that's a smart-serial digital signal.

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912


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Re: [Emc-users] how to control lathe spindle with a mesa 7i77 card

[Ed]

On 11/1/20 10:30 AM, andy pugh wrote:

On Sun, 1 Nov 2020 at 04:43, andrew beck  wrote:


On a 7i76 the 0_10v is isolated from the Mesa card I think.  Is a 7i77
similar?  I just a bit cagy about connecting up electrically to the VFD
inputs.  As I don't want to blow anything.

I don't know. PCW would know.


I'm still struggling to understand how this would work.

Almost exactly the same as a 7i76. Although the 7i77 analog output is
a voltage generator rather than a digital potentiometer.

I am using a 7i49 analogue output to drive the VFD of my milling
machine. You need to be careful with some drives (KBIC for example)
though.


Where would a Mesa SpinX1 or a Pico Spindle DAC fit in here?


Ed.




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Re: [Emc-users] EPP

[Jon Elson]

On 11/01/2020 10:18 AM, andy pugh wrote:

First off I have no idea if the SIIG board works and indeed no idea of
how to test it.

If it shows up in lspci as a parallel port card that's a good start.

Does it have a Moschip chip? Those generally work.


SIIG parallel ports used to be my universal EPP go-to 
brand.  They still work FINE, but there are other brands 
that also work fine (and are cheaper).


SIIG used Oxford Semi chips.

Jon


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Re: [Emc-users] how to control lathe spindle with a mesa 7i77 card

[andy pugh]

On Sun, 1 Nov 2020 at 04:43, andrew beck  wrote:

> On a 7i76 the 0_10v is isolated from the Mesa card I think.  Is a 7i77
> similar?  I just a bit cagy about connecting up electrically to the VFD
> inputs.  As I don't want to blow anything.

I don't know. PCW would know.

> I'm still struggling to understand how this would work.

Almost exactly the same as a 7i76. Although the 7i77 analog output is
a voltage generator rather than a digital potentiometer.

I am using a 7i49 analogue output to drive the VFD of my milling
machine. You need to be careful with some drives (KBIC for example)
though.

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912


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Re: [Emc-users] EPP

[andy pugh]

On Sun, 1 Nov 2020 at 16:02, dave engvall  wrote:

> I have a application for a 7i37/ 7i33. In face a couple of them.
> First try has been a D525 with a SIIG single pport.

Do you really mean 7i37? Or maybe 7i43?

> First off I have no idea if the SIIG board works and indeed no idea of
> how to test it.

If it shows up in lspci as a parallel port card that's a good start.

Does it have a Moschip chip? Those generally work.

Exactly which card do you have?

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912


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[Emc-users] EPP

[dave engvall]

Hi,
I have a application for a 7i37/ 7i33. In face a couple of them.
First try has been a D525 with a SIIG single pport.
First off I have no idea if the SIIG board works and indeed no idea of 
how to test it.


With Jon's ppmc there was a comm program that told one right away if the 
link was working.

I have no idea how to do anything like that with the 7i37.
Sorry to be so ignorant but that's life.

Can someone recommend a small motherboard (if possible) that has a 
reliable EPP pport?

The app is servos which may relax some of the constraints.

In conclusion how does one test the link?
Once the link works the rest should be easy.
Note: I've used 5i20/7i33 combo's.

Thanks in advance

Dave


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Re: [Emc-users] I am STILL not getting G2/G3

[Gene Heskett]

On Sunday 01 November 2020 05:59:13 andy pugh wrote:

> On Sat, 31 Oct 2020 at 20:48, Gene Heskett  
wrote:
> > Yes Jon, r1 does not equal r2. Gawd I wish that error window was
> > copy/pastable. The code straight out of counterbore.py has exactly
> > the same error.
>
> G90 / G91 and G90.1 / G91.1 need to match the assumptions of the
> G-code.

Referencing simple-gcode-generators.zip, do you get useable gcode out of 
counterbore.py?

I didn't. I tried it straight out, same 50% error. Since arcgenm18.py is 
a more universal method of doing the same thing, I defined the 
counterbore as read by miking the head of the screw, subbing the 
diameter of the tool and adding 10 thou for clearance & depth, used its 
output, adding the Z and P and it Just Works. I added a G92 x0. 
y0. at the top of the sub, and a G92.1 to restore when it was done.  
Sweet. Nice compact PIC gcode. :) Now all I have to do is remember it. 
:(

I don't recall from days of yore, that touch offs survived a rehome or 
reload of LinuxCNC, but now they do, and that has been a great help 
recently. Thank you.

Now I need to have a method that will let me un-clamp this piece, use it 
to guide the drilling of tap sized holes in the side of the bs-1, then 
remount it to drill those same screw holes out for clearing 5mm bolts. 
I'll try superglueing the pads its sitting on to the table and dropping 
the drill bit bits in the holes that are drilled into the padding. That 
should allow it to be remounted for expanding the 4.3mm holes to around 
5.1mm with the same location array. I wasn't thinking ahead far enough 
to glue them down first. :( Dumbass at work...

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)
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] I am STILL not getting G2/G3

[andy pugh]

On Sat, 31 Oct 2020 at 20:48, Gene Heskett  wrote:

> Yes Jon, r1 does not equal r2. Gawd I wish that error window was
> copy/pastable. The code straight out of counterbore.py has exactly the
> same error.

G90 / G91 and G90.1 / G91.1 need to match the assumptions of the G-code.

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912


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