Re: [Emc-users] Auto center finding?

2013-04-01 Thread Steve Blackmore
On Sun, 31 Mar 2013 17:44:57 +0100, you wrote:

On 31 March 2013 16:11, Steve Blackmore st...@pilotltd.net wrote:

 I also have an auto changer but never managed to get that to work under
 Linux.

What type of changer is it? (and when did you last try?)

http://www.youtube.com/watch?v=5dvLbb-HNsE

It works similar to the Denford or Enco changers, rotates past a pawl
then backs on to it. It's stepper driven. The gearbox has a 40:1 worm
and pinion. 

It's a couple of years since I tried it, but with the other missing
features and poor CV performance in LinuxCNC I still prefer to use an
old version of Mach.

Steve Blackmore
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Re: [Emc-users] Auto center finding?

2013-04-01 Thread Steve Blackmore
On Sun, 31 Mar 2013 18:21:00 -0400, you wrote:


I have tried that too, but was never able to make it work, seems my offset 
that I was entering by reading the diameter, was always being taken as a 
radius correction.  Switch to radius mode, then have to run the mic reading 
thru the calculator.  Its a PIMA Steve, offsets entered should be taken as 
diameter, not radius.  Totally counter-intuitive to me.


Offsets are always absolute. 

If you switch to radius mode the DRO should give you the reading you
need to enter. Having said that, some other controls do the calc for you
in diameter mode.

See http://imagebin.org/252371 a screen I did for Mach.

The lack of wear offsets is the big killer for me, one of the jobs I do
reasonably regularly needs an adjustment every 50 parts or so, I need to
be able to pause, enter them, and continue easily without destroying my
initial setup measurements or resorting to a calculator!   

Steve Blackmore
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Re: [Emc-users] Auto center finding?

2013-04-01 Thread andy pugh
On 1 April 2013 09:21, Steve Blackmore st...@pilotltd.net wrote:

 It works similar to the Denford or Enco changers, rotates past a pawl
 then backs on to it. It's stepper driven. The gearbox has a 40:1 worm
 and pinion.

One of these three components ought to do the job:
http://wiki.linuxcnc.org/cgi-bin/wiki.pl?ContributedComponents#Boxford_Lathe_ATC_toolchanger_component

-- 
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Re: [Emc-users] Auto center finding?

2013-04-01 Thread Dave
You are running a lathe on Mach3?

I thought you gave up on Mach3 for lathe work.

No threading or CSS?  CV isn't very useful on a lathe.

Dave

On 4/1/2013 3:21 AM, Steve Blackmore wrote:
 On Sun, 31 Mar 2013 17:44:57 +0100, you wrote:


 On 31 March 2013 16:11, Steve Blackmorest...@pilotltd.net  wrote:

  
 I also have an auto changer but never managed to get that to work under
 Linux.

 What type of changer is it? (and when did you last try?)
  
 http://www.youtube.com/watch?v=5dvLbb-HNsE

 It works similar to the Denford or Enco changers, rotates past a pawl
 then backs on to it. It's stepper driven. The gearbox has a 40:1 worm
 and pinion.

 It's a couple of years since I tried it, but with the other missing
 features and poor CV performance in LinuxCNC I still prefer to use an
 old version of Mach.

 Steve Blackmore
 --

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Re: [Emc-users] Auto center finding?

2013-04-01 Thread Steve Blackmore
On Mon, 1 Apr 2013 11:11:26 +0100, you wrote:

On 1 April 2013 09:21, Steve Blackmore st...@pilotltd.net wrote:

 It works similar to the Denford or Enco changers, rotates past a pawl
 then backs on to it. It's stepper driven. The gearbox has a 40:1 worm
 and pinion.

One of these three components ought to do the job:
http://wiki.linuxcnc.org/cgi-bin/wiki.pl?ContributedComponents#Boxford_Lathe_ATC_toolchanger_component

Thanks Andy - I'll have a look.

Steve Blackmore
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Re: [Emc-users] Auto center finding?

2013-04-01 Thread Steve Blackmore
On Mon, 01 Apr 2013 20:48:00 +0100, Steve Blackmore st...@pilotltd.net
wrote:

On Mon, 01 Apr 2013 09:46:35 -0500, you wrote:

You are running a lathe on Mach3?

I thought you gave up on Mach3 for lathe work.

No, still use it about 90% unless I have long threads to do, then I use
Linuxcnc. Still missing a few essential features for me to take
seriously.

No threading or CSS?  CV isn't very useful on a lathe.

CSS works well enough on early Mach versions prior to V3.040 or so,
altering the spindle speed rather than varying the feed. Spindle on my
new lathe has a good enough response to work OK with that.

Steve Blackmore
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Re: [Emc-users] Seasons Greetings

2013-04-01 Thread dave
On Sun, 2013-03-31 at 15:38 -0500, Dave wrote:
 Air source heat pumps are common in Indiana and we are colder than Missouri!
 
 I have a ground water heat pump - open loop. Dumps into a pond in my 
 front yard.
 
 I'd go with two wells and draw from one and pump into the other if I was 
 to do it from scratch.
 
 Permits are no big deal in Indiana.   In fact I could probably drill a 
 well without one here.
 
 Heating my house is really cheap..
 
 Dave
 

OK so I'm green with envy. When I built my house 25 years ago I went
with propane. Propane and electricity are a toss up now depending on
what price you can get your propane for. I still do hot water with
propane. There just ain't no free lunchbut I keep looking. ;-)

Dave
 On 3/31/2013 1:19 PM, Gregg Eshelman wrote:
  --- On Sun, 3/31/13, Jon Elsonel...@pico-systems.com  wrote:
 
 
  From: Jon Elsonel...@pico-systems.com
   
 
  An air-source heat pump, in IDAHO???  Are you
  NUTS?  ground-source is good,
  but even in Missouri, air-sourced heat pumps don't do so
  well.
 
  Jon
   
  Wanted a closed loop water to air but the permitting process is insane. 
  Even more insane is the open loop type that wastes water requires no 
  special permit. So went with a 16 SEER Trane air to air. It'll work down to 
  20 degrees F.
 
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Re: [Emc-users] Seasons Greetings

2013-04-01 Thread dave
On Sun, 2013-03-31 at 18:10 -0400, Gene Heskett wrote:
 On Sunday 31 March 2013 18:08:26 Erik Christiansen did opine:
 
  On 31.03.13 11:22, Peter Blodow wrote:
   Best wishes and happy Easter Holidays to all of you from snow-ridden
   Bavaria!
  
  Danke, gleichfalls!
  
  Happy Easter from down under, where the end of a week and a half between
  30آ°C (86آ°F) and 36آ°C (99آ°F) here in the middle of the first month of
  autumn (fall) was pretty much welcome. (Easy for me to say. With 12
  cubic metres of firewood stacked under cover, I'm even ready if some of
  that northern hemisphere snow finds its way down here. Though I'd race
  for the camera if it ever did snow here, even at 600 ft altitude.)
  
  Hoping that the extra chocolate rations help to stave off the cold up
  there. (Sorry, Gene - you're probably not allowed a lot of that.)
 
 I eat half a block (an ounce) of unsweetened a day. Chocolate, without the 
 sugar, is actually good for a lot of things that can ail one.  Box of 
 Baker's sitting within reach right now.  :)
GI Periwinkel translated from a childrens book as Good idea
Periwinkle
I succumb to the extra dark from time to time. 

Dave
  
  Erik
 
 
 Cheers, Gene



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