Re: [Emc-users] Rotary Head

2020-02-24 Thread andy pugh 
On Thu, 20 Feb 2020 at 21:38, Jeff Johnson  wrote:

> Ok.Thanks guys I see there are simpler ways to go now.


There is something to be said for using tools that are familiar.
is the table already motorised? Does is have an existing drive? What
control signals does that drive expect?

-- 
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] Rotary Head

2020-02-20 Thread Jeff Johnson 
Ok.Thanks guys I see there are simpler ways to go now. 

I'm a machinist forced into being a control guy at times.

 

Jeff Johnson

john...@superiorroll.com

Superior Roll & Turning

734-279-1831

 


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Re: [Emc-users] Rotary Head

2020-02-20 Thread Todd Zuercher 
This doesn't really sound like a job for a full blown Linuxcnc install, a 
simple servo control and DRO should be all that's required.

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

-Original Message-
From: Jeff Johnson  
Sent: Thursday, February 20, 2020 2:09 PM
To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] Rotary Head

[EXTERNAL EMAIL] Be sure links are safe.

Correct Todd..One is a Milacron 850SX and the Okuma has a Numatix control 
someone retrofitted before I got it.





I think maybe some of the machines he wants to use it on might not be running 
Linuxcnc.



Todd Zuercher

P. Graham Dunn Inc.

630 Henry Street?

Dalton, Ohio 44618

Phone:? (330)828-2105ext. 2031



-Original Message-

From: Andy Pugh mailto:bodge...@gmail.com> >

Sent: Thursday, February 20, 2020 10:24 AM

To: Enhanced Machine Controller (EMC) mailto:emc-users@lists.sourceforge.net> >

Subject: Re: [Emc-users] Rotary Head



[EXTERNAL EMAIL] Be sure links are safe.



> On 20 Feb 2020, at 14:25, Jeff Johnson mailto:john...@superiorroll.com> > wrote:

>

>

> Any thoughts or ideas on the best way to pull this off? PC? RPi4? 
> Which



Why not add a 4th axis configuration to each machine that might use it? Then 
you can properly integrate the motion control?



You can actually do it with a single config. I have a jumper in one of the 
connectors that the rotary connects through. If the system doesn?t see the link 
(via an IO pin) it doesn?t enable the axis.

Mine actually f-errors if you try to move the axis, but that would be easy to 
fix.



Jeff Johnson

john...@superiorroll.com

Superior Roll & Turning

734-279-1831




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Re: [Emc-users] Rotary Head

2020-02-20 Thread Ken Strauss 
Perhaps I misread the original request but are the associated mills controlled 
by LinuxCNC? If so then Andy's comments seem perfect. If not, there are 
numerous online plans for Arduino controlled indexers.

> -Original Message-
> From: Andy Pugh [mailto:bodge...@gmail.com]
> Sent: Thursday, February 20, 2020 10:24 AM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Rotary Head
>
>
>
> > On 20 Feb 2020, at 14:25, Jeff Johnson  wrote:
> >
> >
> > Any thoughts or ideas on the best way to pull this off? PC? RPi4? Which
>
> Why not add a 4th axis configuration to each machine that might use it? Then
> you can properly integrate the motion control?
>
> You can actually do it with a single config. I have a jumper in one of the
> connectors that the rotary connects through. If the system doesn't see the 
> link
> (via an IO pin) it doesn't enable the axis.
> Mine actually f-errors if you try to move the axis, but that would be easy 
> to fix.
>
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Re: [Emc-users] Rotary Head

2020-02-20 Thread Jeff Johnson 
Correct Todd..One is a Milacron 850SX and the Okuma has a Numatix control
someone retrofitted before I got it.

 

 

I think maybe some of the machines he wants to use it on might not be
running Linuxcnc.

 

Todd Zuercher

P. Graham Dunn Inc.

630 Henry Street?

Dalton, Ohio 44618

Phone:? (330)828-2105ext. 2031

 

-Original Message-

From: Andy Pugh mailto:bodge...@gmail.com> > 

Sent: Thursday, February 20, 2020 10:24 AM

To: Enhanced Machine Controller (EMC) mailto:emc-users@lists.sourceforge.net> >

Subject: Re: [Emc-users] Rotary Head

 

[EXTERNAL EMAIL] Be sure links are safe.

 

> On 20 Feb 2020, at 14:25, Jeff Johnson mailto:john...@superiorroll.com> > wrote:

> 

> 

> Any thoughts or ideas on the best way to pull this off? PC? RPi4? Which

 

Why not add a 4th axis configuration to each machine that might use it? Then
you can properly integrate the motion control?

 

You can actually do it with a single config. I have a jumper in one of the
connectors that the rotary connects through. If the system doesn?t see the
link (via an IO pin) it doesn?t enable the axis.

Mine actually f-errors if you try to move the axis, but that would be easy
to fix.

 

Jeff Johnson

john...@superiorroll.com

Superior Roll & Turning

734-279-1831

 


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Re: [Emc-users] Rotary Head

2020-02-20 Thread Gene Heskett 
On Thursday 20 February 2020 10:24:18 Andy Pugh wrote:

> > On 20 Feb 2020, at 14:25, Jeff Johnson 
> > wrote:
> >
> >
> > Any thoughts or ideas on the best way to pull this off? PC? RPi4?
> > Which
>
> Why not add a 4th axis configuration to each machine that might use
> it? Then you can properly integrate the motion control?
>
> You can actually do it with a single config. I have a jumper in one of
> the connectors that the rotary connects through. If the system doesn’t
> see the link (via an IO pin) it doesn’t enable the axis. Mine actually
> f-errors if you try to move the axis, but that would be easy to fix.
>
I do essentially the same thing w/o the detection jumper. If its 
unplugged it still has a missimg/undefined home_sequence so its marked 
as homed whereever it is. Like this in the ini file:
[JOINT_3]
TYPE= ANGULAR
HOME= 0.0
HOME_SEQUENCE   = 0
HOME_SEARCH_VEL = 0
HOME_LATCH_VEL  = 0
HOME_FINAL_VEL  = 0

It, if used, generally gets touched_off someplace just to establish a 
reference.

Just never unplug or plug it in with power applied.

To make that easier but its not done yet, I have just obtained some more 
40 amp SSR's, and will add an activator link in my .hal file so that all 
motor power is off and the machine unhomed when E-stop is false. I 
already soft-start the spindle supply with 2 more relays, driven by 
motion-enable, one to soft-start that supply thru a 100 ohm 200 watt 
resistor and another one to bypass the resistor 3 seconds later so I can 
service its 17 amp max load with a 20 amp breaker, else its unrush will 
reliably clear a 30 amp breaker. And a 30 is not code on a 10 ga circuit 
here...
 
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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)
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 - Louis D. Brandeis
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Re: [Emc-users] Rotary Head

2020-02-20 Thread Todd Zuercher 
I think maybe some of the machines he wants to use it on might not be running 
Linuxcnc.

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

-Original Message-
From: Andy Pugh  
Sent: Thursday, February 20, 2020 10:24 AM
To: Enhanced Machine Controller (EMC) 
Subject: Re: [Emc-users] Rotary Head

[EXTERNAL EMAIL] Be sure links are safe.

> On 20 Feb 2020, at 14:25, Jeff Johnson  wrote:
>
>
> Any thoughts or ideas on the best way to pull this off? PC? RPi4? Which

Why not add a 4th axis configuration to each machine that might use it? Then 
you can properly integrate the motion control?

You can actually do it with a single config. I have a jumper in one of the 
connectors that the rotary connects through. If the system doesn’t see the link 
(via an IO pin) it doesn’t enable the axis.
Mine actually f-errors if you try to move the axis, but that would be easy to 
fix.

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Re: [Emc-users] Rotary Head

2020-02-20 Thread Andy Pugh 


> On 20 Feb 2020, at 14:25, Jeff Johnson  wrote:
> 
> 
> Any thoughts or ideas on the best way to pull this off? PC? RPi4? Which

Why not add a 4th axis configuration to each machine that might use it? Then 
you can properly integrate the motion control?

You can actually do it with a single config. I have a jumper in one of the 
connectors that the rotary connects through. If the system doesn’t see the link 
(via an IO pin) it doesn’t enable the axis. 
Mine actually f-errors if you try to move the axis, but that would be easy to 
fix. 

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[Emc-users] Rotary Head

2020-02-20 Thread Jeff Johnson 
Hello,

 

Owner and user of some big iron using Linux CNC. I am not a noob but close,
I started down this path 5-6 years ago and have hung Linux on three turning
centers and 1 Three axis mill.

With that being said I went through a steep learning curve on the first
machine and at the time had a very good maintenance man employed here that
took off and ran with most of the heavy 

lifting of using Linuxcnc . For the most part we just run what we have and
never update so my limited Linux skills have become very rusty (they were
never that great).

 

Now I have a project that I would like the experts to guide me on if you
guys see fit. I have a rotary axis that I want a stand-alone control on. One
axis display, Touchy maybe? Punch in the degrees of rotary

and execute as needed during a pause in the machining program on the machine
control. I would be able to move this head to two different mills for
indexing operations, one being an old Okuma Bridge mill 

with 10 feet of travel. 

 

Any thoughts or ideas on the best way to pull this off? PC? RPi4? Which
operator interface will work the best? I have a very nice 20" head sitting
here with a  RotoKing control by J&P Control Systems out of

Connecticut  that would work if I could find an operation manual for it,
Google has turned up nothing for me.

 

Any thoughts on this project?

 

Jeff Johnson

john...@superiorroll.com

Superior Roll & Turning

734-279-1831

 


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