subject:"\[Emc\-users\] Possible New Lathe"

I have long been disatisfied with my CNC-converted Chinese lathe.
It is a cheap copy of the Emco Compact 8 (not a paragon of over-built
perfection) stretched to 9 centre height and 1000mm bed length. Then
a milling machine was bolted to the back to really highlight the fact
that the saddle isn't held down very well.

So, I have been looking for something to replace it, and I found this
machine locally (very locally)

http://www.ebay.co.uk/itm/Centre-lathe-made-by-Stankoimport-Russian-built-/191526503823

It is _very_ solid for a machine with pretty much the same capacity as
the CCL. It has 1 more swing and rather less between-centres
distance, but it has a  bigger spindle bore (30mm rather than 20)

The apron is huge. Built-in oil pump and a joystick to choose traverse
or feed in either direction.

The good:
Solid. Very solid. 1400kg.
2-speed geared head + something in the base which can be replaced by a
VFD (possibly).
3 jaw and 4 jaw chucks, + collets and collet closer.
Decent top speed (2000 rpm)
About half a mile from my house.

The Bad:
A lot to throw away. Including the lovely apron gearbox.
The chucks attach in a funny way. What looks like a Camlock is in fact
a flange that you poke studs + nuts through, then rotate a collar,
then tighten the nuts. Not a _bad_ way to attach a chuck, but unusual
and possibly fiddly.
Spare parts are likely to be hard to find. And there is probably no
ready market for the bits I pull off, whereas there would be with
(say) a Harrison or Colchester.

-- 
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto

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Re: [Emc-users] Possible New Lathe

On 27 March 2015 at 14:27, andy pugh bodge...@gmail.com wrote:

 http://www.ebay.co.uk/itm/Centre-lathe-made-by-Stankoimport-Russian-built-/191526503823

I forgot to ask the question...

Does anyone have any experience of these or other Russian lathes?

-- 
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If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto

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Re: [Emc-users] Possible New Lathe

2015-03-27 Thread Marcus Bowman


On 27 Mar 2015, at 14:27, andy pugh wrote:

 I have long been disatisfied with my CNC-converted Chinese lathe.
 It is a cheap copy of the Emco Compact 8 (not a paragon of over-built
 perfection) stretched to 9 centre height and 1000mm bed length. Then
 a milling machine was bolted to the back to really highlight the fact
 that the saddle isn't held down very well.
 
 So, I have been looking for something to replace it, and I found this
 machine locally (very locally)
 
 http://www.ebay.co.uk/itm/Centre-lathe-made-by-Stankoimport-Russian-built-/191526503823
 
 It is _very_ solid for a machine with pretty much the same capacity as
 the CCL. It has 1 more swing and rather less between-centres
 distance, but it has a  bigger spindle bore (30mm rather than 20)
 
 The apron is huge. Built-in oil pump and a joystick to choose traverse
 or feed in either direction.
 
 The good:
 Solid. Very solid. 1400kg.
 2-speed geared head + something in the base which can be replaced by a
 VFD (possibly).
 3 jaw and 4 jaw chucks, + collets and collet closer.
 Decent top speed (2000 rpm)
 About half a mile from my house.
 
 The Bad:
 A lot to throw away. Including the lovely apron gearbox.
 The chucks attach in a funny way. What looks like a Camlock is in fact
 a flange that you poke studs + nuts through, then rotate a collar,
 then tighten the nuts. Not a _bad_ way to attach a chuck, but unusual
 and possibly fiddly.
 Spare parts are likely to be hard to find.

I always tend to think that might be an important problem.

Marcus 

 And there is probably no
 ready market for the bits I pull off, whereas there would be with
 (say) a Harrison or Colchester.
 
 -- 
 atp
 If you can't fix it, you don't own it.
 http://www.ifixit.com/Manifesto
 
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Re: [Emc-users] Possible New Lathe

2015-03-27 Thread Bruce Layne

I was thinking of getting a new Grizzly G0602 lathe and converting it to 
CNC, but a friend talked me into getting an old Clausing lathe as the 
basis for my CNC conversion instead.  For about the same money, I got a 
much more solid lathe.  It was good advice.

The lathe you're considering looks very well built and is a nice size 
for a home shop.  I particularly liked that it was some company's tool 
room lathe, so it won't be worn out from production use.  Hopefully, you 
can verify that in person, locally?  At 1400 kg, hopefully there is 
local help to move that beast!

I have a lot of bits I've pulled off the Clausing and more to go, and I 
plan on selling them on eBay at bargain prices to the people who restore 
these grand old machines.  I might not tell them that I'm converting 
mine to CNC, as they tend to look at that as vandalizing art.  If you 
have some place to store the surplussed parts from that Russian lathe, 
you could list them on eBay and wait until someone needs them.  WWW = 
WorldWide Warehouse.  It's probably built like a tank, and the parts 
don't wear out, so the demand is probably low.  Maybe a trip to the 
scrappers and a tearful farewell.

Keeping a running eBay search for shop tools that are close to your 
location is a good way to find great deals on used equipment, 
particularly if you're not in a hurry.  A quick search of Craig's List 
is good for local machining tool finds, as well.  One day, you'll get an 
email announcing the new love of your life.

In communist Russia, lathe turns YOU on!

I'm looking forward to seeing your newly converted CNC lathe.  I'd name 
her Natasha.





On 03/27/2015 10:27 AM, andy pugh wrote:
 I have long been disatisfied with my CNC-converted Chinese lathe.
 It is a cheap copy of the Emco Compact 8 (not a paragon of over-built
 perfection) stretched to 9 centre height and 1000mm bed length. Then
 a milling machine was bolted to the back to really highlight the fact
 that the saddle isn't held down very well.

 So, I have been looking for something to replace it, and I found this
 machine locally (very locally)

 http://www.ebay.co.uk/itm/Centre-lathe-made-by-Stankoimport-Russian-built-/191526503823

 It is _very_ solid for a machine with pretty much the same capacity as
 the CCL. It has 1 more swing and rather less between-centres
 distance, but it has a  bigger spindle bore (30mm rather than 20)

 The apron is huge. Built-in oil pump and a joystick to choose traverse
 or feed in either direction.

 The good:
 Solid. Very solid. 1400kg.
 2-speed geared head + something in the base which can be replaced by a
 VFD (possibly).
 3 jaw and 4 jaw chucks, + collets and collet closer.
 Decent top speed (2000 rpm)
 About half a mile from my house.

 The Bad:
 A lot to throw away. Including the lovely apron gearbox.
 The chucks attach in a funny way. What looks like a Camlock is in fact
 a flange that you poke studs + nuts through, then rotate a collar,
 then tighten the nuts. Not a _bad_ way to attach a chuck, but unusual
 and possibly fiddly.
 Spare parts are likely to be hard to find. And there is probably no
 ready market for the bits I pull off, whereas there would be with
 (say) a Harrison or Colchester.



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Re: [Emc-users] Possible New Lathe

2015-03-27 Thread Kirk Wallace

On 03/27/2015 09:49 AM, Gene Heskett wrote:


 On Friday 27 March 2015 11:59:52 andy pugh wrote:
 On 27 March 2015 at 14:27, andy pugh bodge...@gmail.com wrote:
 2-speed geared head + something in the base which can be replaced by
 a VFD (possibly).

 Though this would mean removing the preselector gearbox. Which would
 be slightly sad.

 Do you mean the headstock backgear selector?  Not a problem, we have hal
 modules for that.  Could even be made automatic, which I intend to get
 working this summer on my 2 speed head.

 Cheers, Gene Heskett


My guess is that Andy means a gearbox between the spindle motor and the 
spindle. I removed the intermediate box on my lathe and placed the motor 
on the mount that the gearbox was on:
http://www.wallacecompany.com/cnc_lathe/00055-1a.jpg

The changegears and threading gearbox went away too:
http://www.wallacecompany.com/cnc_lathe/2-1a.jpg

The plan is to place the Z axis motor and pulleys where the threading 
gearbox was (yellow area at the end of the leadscrew):
http://www.wallacecompany.com/cnc_lathe/1-1a.jpg

http://www.wallacecompany.com/cnc_lathe/


-- 
Kirk Wallace
http://www.wallacecompany.com/machine_shop/
http://www.wallacecompany.com/E45/

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Re: [Emc-users] Possible New Lathe

On 27 March 2015 at 17:49, Viesturs Lācis viesturs.la...@gmail.com wrote:
 One thing to pay attention to is
 the width of the slide surfaces on slides - russians made them pretty
 narrow, so the contact area is smaller and it wears out quicker

The slides are relatively huge compared to the CCL, and the saddle is
at least 3 x wider too.


-- 
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If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto

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Re: [Emc-users] Possible New Lathe

2015-03-27 Thread John Thornton

Did you finish this project?

JT

On 3/27/2015 12:16 PM, Kirk Wallace wrote:
 http://www.wallacecompany.com/cnc_lathe/ 


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Re: [Emc-users] Possible New Lathe

2015-03-27 Thread Viesturs Lācis

2015-03-27 16:47 GMT+02:00 andy pugh bodge...@gmail.com:
 http://www.ebay.co.uk/itm/Centre-lathe-made-by-Stankoimport-Russian-built-/191526503823

 I forgot to ask the question...

 Does anyone have any experience of these or other Russian lathes?

Well, in my part of world western-made machine tools are considered
much better in terms of engineering. One thing to pay attention to is
the width of the slide surfaces on slides - russians made them pretty
narrow, so the contact area is smaller and it wears out quicker - I
have one lathe that I want to convert to cnc and for that purpose I am
looking for a place to mill off those to make flat surface for
mounting large Hiwins.

I was pretty surprised to see that manufacturer has prrovided some
manual in english. Let me know, if you want some more detailed
information about it [in russian language] - I know a guy who can find
data about any machinetool made in ussr.

Viesturs

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Re: [Emc-users] Possible New Lathe

On 27 March 2015 at 16:49, Gene Heskett ghesk...@wdtv.com wrote:
 Though this would mean removing the preselector gearbox. Which would
 be slightly sad.

 Do you mean the headstock backgear selector?

No. The angled dial at knee-level allows you to select a gear when the
spindle is running, but it doesn't actually _change_ the gear until
you pull the adjacent lever.
This is rather like the gearboxes on some old cars.
http://en.wikipedia.org/wiki/Preselector_gearbox


-- 
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If you can't fix it, you don't own it.
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Re: [Emc-users] Possible New Lathe

On 27 March 2015 at 17:16, Kirk Wallace kwall...@wallacecompany.com wrote:
 The plan is to place the Z axis motor and pulleys where the threading
 gearbox was (yellow area at the end of the leadscrew):
 http://www.wallacecompany.com/cnc_lathe/1-1a.jpg

If you would like the opportunity to learn from my mistakes...

Consider mounting the motor pointing back towards the changewheels
with a belt up to the ballscrew. (and, possibly, with the pulleys
round the back of the headstock).
This lets you have the ballscrew closer to the bed. But more
importantly it makes room for a telescopic ballscrew cover when the
saddle is all the way to the chuck end.

I didn't do it this way. And I wish I had.

This is how mine is done:
https://picasaweb.google.com/108164504656404380542/Gibbs?noredirect=1#5403345560655766370

The mounting bracket is attached by 2 x M10 bolts through from inside
the bed casting. These keep coming loose and are a complete brute to
re-tighten. So don't do that either.

A plate bolted to the left-hand end face  of the bed would have been
much stiffer and have allowed for a screw-cover.

-- 
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto

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Re: [Emc-users] Possible New Lathe



On Friday 27 March 2015 11:08:18 Bruce Layne wrote:
 I was thinking of getting a new Grizzly G0602 lathe and converting it
 to CNC, but a friend talked me into getting an old Clausing lathe as
 the basis for my CNC conversion instead.  For about the same money, I
 got a much more solid lathe.  It was good advice.

 The lathe you're considering looks very well built and is a nice size
 for a home shop.  I particularly liked that it was some company's tool
 room lathe, so it won't be worn out from production use.  Hopefully,
 you can verify that in person, locally?  At 1400 kg, hopefully there
 is local help to move that beast!

 I have a lot of bits I've pulled off the Clausing and more to go, and
 I plan on selling them on eBay at bargain prices to the people who
 restore these grand old machines.  I might not tell them that I'm
 converting mine to CNC, as they tend to look at that as vandalizing
 art.  If you have some place to store the surplussed parts from that
 Russian lathe, you could list them on eBay and wait until someone
 needs them.  WWW = WorldWide Warehouse.  It's probably built like a
 tank, and the parts don't wear out, so the demand is probably low. 
 Maybe a trip to the scrappers and a tearful farewell.

 Keeping a running eBay search for shop tools that are close to your
 location is a good way to find great deals on used equipment,
 particularly if you're not in a hurry.  A quick search of Craig's List
 is good for local machining tool finds, as well.  One day, you'll get
 an email announcing the new love of your life.

 In communist Russia, lathe turns YOU on!

 I'm looking forward to seeing your newly converted CNC lathe.  I'd
 name her Natasha.

FWIW, I'd like to see the conversion process in pictures myself.
Tee hee. I can see it now, a polished brass  laquer coated nameplate 
someplace obvious, engraved Natasha, and the lettering backfilled with 
hot pink paint worthy of a grand lady. At 3080 lbs, moving it will be a 
problem, and seeing how you solve that would be interesting too.

So keep your camera handy 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)
Genes Web page http://geneslinuxbox.net:6309/gene

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Re: [Emc-users] Possible New Lathe



On Friday 27 March 2015 11:59:52 andy pugh wrote:
 On 27 March 2015 at 14:27, andy pugh bodge...@gmail.com wrote:
  2-speed geared head + something in the base which can be replaced by
  a VFD (possibly).

 Though this would mean removing the preselector gearbox. Which would
 be slightly sad.

Do you mean the headstock backgear selector?  Not a problem, we have hal 
modules for that.  Could even be made automatic, which I intend to get 
working this summer on my 2 speed head.

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)
Genes Web page http://geneslinuxbox.net:6309/gene

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Re: [Emc-users] Possible New Lathe

2015-03-27 Thread John Alexander Stewart

My Emco Compact-8s have the 3 M8 nuts to hold chucks on to the flange - it
does not have the rotating collar.

I find it fine - I don't change chucks that often (like, the ER-25 collet
adapter has been on there for a year). Changing is pretty quick, but there
is an art to getting the nuts threaded on - they are in tight quarters. The
rotating collar is one that helps with this issue.

John.
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Re: [Emc-users] Possible New Lathe

Hello Andy,
This is a pretty decent lathe, I'll find you some info tonight.
27 бер. 2015 16:28, користувач andy pugh bodge...@gmail.com написав:

 I have long been disatisfied with my CNC-converted Chinese lathe.
 It is a cheap copy of the Emco Compact 8 (not a paragon of over-built
 perfection) stretched to 9 centre height and 1000mm bed length. Then
 a milling machine was bolted to the back to really highlight the fact
 that the saddle isn't held down very well.

 So, I have been looking for something to replace it, and I found this
 machine locally (very locally)


 http://www.ebay.co.uk/itm/Centre-lathe-made-by-Stankoimport-Russian-built-/191526503823

 It is _very_ solid for a machine with pretty much the same capacity as
 the CCL. It has 1 more swing and rather less between-centres
 distance, but it has a  bigger spindle bore (30mm rather than 20)

 The apron is huge. Built-in oil pump and a joystick to choose traverse
 or feed in either direction.

 The good:
 Solid. Very solid. 1400kg.
 2-speed geared head + something in the base which can be replaced by a
 VFD (possibly).
 3 jaw and 4 jaw chucks, + collets and collet closer.
 Decent top speed (2000 rpm)
 About half a mile from my house.

 The Bad:
 A lot to throw away. Including the lovely apron gearbox.
 The chucks attach in a funny way. What looks like a Camlock is in fact
 a flange that you poke studs + nuts through, then rotate a collar,
 then tighten the nuts. Not a _bad_ way to attach a chuck, but unusual
 and possibly fiddly.
 Spare parts are likely to be hard to find. And there is probably no
 ready market for the bits I pull off, whereas there would be with
 (say) a Harrison or Colchester.

 --
 atp
 If you can't fix it, you don't own it.
 http://www.ifixit.com/Manifesto


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 Emc-users@lists.sourceforge.net
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Re: [Emc-users] Possible New Lathe



On Friday 27 March 2015 10:59:10 Marcus Bowman wrote:
 On 27 Mar 2015, at 14:27, andy pugh wrote:
  I have long been disatisfied with my CNC-converted Chinese lathe.
  It is a cheap copy of the Emco Compact 8 (not a paragon of
  over-built perfection) stretched to 9 centre height and 1000mm bed
  length. Then a milling machine was bolted to the back to really
  highlight the fact that the saddle isn't held down very well.
 
  So, I have been looking for something to replace it, and I found
  this machine locally (very locally)
 
  http://www.ebay.co.uk/itm/Centre-lathe-made-by-Stankoimport-Russian-
 built-/191526503823
 
  It is _very_ solid for a machine with pretty much the same capacity
  as the CCL. It has 1 more swing and rather less between-centres
  distance, but it has a  bigger spindle bore (30mm rather than 20)
 
  The apron is huge. Built-in oil pump and a joystick to choose
  traverse or feed in either direction.
 
  The good:
  Solid. Very solid. 1400kg.
  2-speed geared head + something in the base which can be replaced by
  a VFD (possibly).
  3 jaw and 4 jaw chucks, + collets and collet closer.
  Decent top speed (2000 rpm)
  About half a mile from my house.
 
  The Bad:
  A lot to throw away. Including the lovely apron gearbox.
  The chucks attach in a funny way. What looks like a Camlock is in
  fact a flange that you poke studs + nuts through, then rotate a
  collar, then tighten the nuts. Not a _bad_ way to attach a chuck,
  but unusual and possibly fiddly.
  Spare parts are likely to be hard to find.

 I always tend to think that might be an important problem.

 Marcus

That to me wouldn't be a huge concern, making parts that are generally 
made of pure unobtainium is supposed to be our specialty.  Both my mill 
and my lathe have made on the premises parts in them.

  And there is probably no
  ready market for the bits I pull off, whereas there would be with
  (say) a Harrison or Colchester.
 
  --
  atp
  If you can't fix it, you don't own it.
  http://www.ifixit.com/Manifesto
 
  
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Re: [Emc-users] Possible New Lathe

2015-03-27 Thread sam sokolik

If you're planning to convert it to cnc - The only thing you really have 
to worry about for parts are the spindle bearings/gearbox..

(if you can live with the chuck mounting design)

I have seen what you can fabricate in your shop... I really don't think 
you have to worry about anything..

sam



On 3/27/2015 10:08 AM, Bruce Layne wrote:
 I was thinking of getting a new Grizzly G0602 lathe and converting it to
 CNC, but a friend talked me into getting an old Clausing lathe as the
 basis for my CNC conversion instead.  For about the same money, I got a
 much more solid lathe.  It was good advice.

 The lathe you're considering looks very well built and is a nice size
 for a home shop.  I particularly liked that it was some company's tool
 room lathe, so it won't be worn out from production use.  Hopefully, you
 can verify that in person, locally?  At 1400 kg, hopefully there is
 local help to move that beast!

 I have a lot of bits I've pulled off the Clausing and more to go, and I
 plan on selling them on eBay at bargain prices to the people who restore
 these grand old machines.  I might not tell them that I'm converting
 mine to CNC, as they tend to look at that as vandalizing art.  If you
 have some place to store the surplussed parts from that Russian lathe,
 you could list them on eBay and wait until someone needs them.  WWW =
 WorldWide Warehouse.  It's probably built like a tank, and the parts
 don't wear out, so the demand is probably low.  Maybe a trip to the
 scrappers and a tearful farewell.

 Keeping a running eBay search for shop tools that are close to your
 location is a good way to find great deals on used equipment,
 particularly if you're not in a hurry.  A quick search of Craig's List
 is good for local machining tool finds, as well.  One day, you'll get an
 email announcing the new love of your life.

 In communist Russia, lathe turns YOU on!

 I'm looking forward to seeing your newly converted CNC lathe.  I'd name
 her Natasha.





 On 03/27/2015 10:27 AM, andy pugh wrote:
 I have long been disatisfied with my CNC-converted Chinese lathe.
 It is a cheap copy of the Emco Compact 8 (not a paragon of over-built
 perfection) stretched to 9 centre height and 1000mm bed length. Then
 a milling machine was bolted to the back to really highlight the fact
 that the saddle isn't held down very well.

 So, I have been looking for something to replace it, and I found this
 machine locally (very locally)

 http://www.ebay.co.uk/itm/Centre-lathe-made-by-Stankoimport-Russian-built-/191526503823

 It is _very_ solid for a machine with pretty much the same capacity as
 the CCL. It has 1 more swing and rather less between-centres
 distance, but it has a  bigger spindle bore (30mm rather than 20)

 The apron is huge. Built-in oil pump and a joystick to choose traverse
 or feed in either direction.

 The good:
 Solid. Very solid. 1400kg.
 2-speed geared head + something in the base which can be replaced by a
 VFD (possibly).
 3 jaw and 4 jaw chucks, + collets and collet closer.
 Decent top speed (2000 rpm)
 About half a mile from my house.

 The Bad:
 A lot to throw away. Including the lovely apron gearbox.
 The chucks attach in a funny way. What looks like a Camlock is in fact
 a flange that you poke studs + nuts through, then rotate a collar,
 then tighten the nuts. Not a _bad_ way to attach a chuck, but unusual
 and possibly fiddly.
 Spare parts are likely to be hard to find. And there is probably no
 ready market for the bits I pull off, whereas there would be with
 (say) a Harrison or Colchester.


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Re: [Emc-users] Possible New Lathe

On 27 March 2015 at 16:34, Gene Heskett ghesk...@wdtv.com wrote:
 That to me wouldn't be a huge concern, making parts that are generally
 made of pure unobtainium is supposed to be our specialty.  Both my mill
 and my lathe have made on the premises parts in them.

  And there is probably no
  ready market for the bits I pull off, whereas there would be with
  (say) a Harrison or Colchester.

I was looking at this from the other point of view. If I remove the
feeds and speeds box from a Colchester then I can _sell_ that on eBay
to recoup some of the costs.

:-)

-- 
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Re: [Emc-users] Possible New Lathe

2015-03-27 Thread Dave Caroline

Looks like a nice casting to start a project from.
I had rear nuts on the Hobbymat MD65, utter pain.

Other thing to think about collets and taper, I usually use cheap
morse taper collets but that often gives problems for long stuff.

The good side was selling off the junk parts I no longer wanted after
using part of the MD65 lathe as my mill, a well known one has a market
for the parts.

Dave

On 27/03/2015, John Alexander Stewart ivatt...@gmail.com wrote:
 My Emco Compact-8s have the 3 M8 nuts to hold chucks on to the flange - it
 does not have the rotating collar.

 I find it fine - I don't change chucks that often (like, the ER-25 collet
 adapter has been on there for a year). Changing is pretty quick, but there
 is an art to getting the nuts threaded on - they are in tight quarters. The
 rotating collar is one that helps with this issue.

 John.
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Re: [Emc-users] Possible New Lathe

2015-03-27 Thread John Thornton

On my Samson lathe I leave the 4 jaw in all the time, when I want to do 
work with the 5C collets I put a collet closer in the 4 jaw. I find I 
can center a part in a few seconds with my tool post mounted indicator.

I use a collet closer like this one:
http://www.warco.co.uk/259-484-large/5c-precision-collet-chuck.jpg

You work on 200 year old fire engines and your worried about spare parts?

JT

On 3/27/2015 9:27 AM, andy pugh wrote:
 I have long been disatisfied with my CNC-converted Chinese lathe.
 It is a cheap copy of the Emco Compact 8 (not a paragon of over-built
 perfection) stretched to 9 centre height and 1000mm bed length. Then
 a milling machine was bolted to the back to really highlight the fact
 that the saddle isn't held down very well.

 So, I have been looking for something to replace it, and I found this
 machine locally (very locally)

 http://www.ebay.co.uk/itm/Centre-lathe-made-by-Stankoimport-Russian-built-/191526503823

 It is _very_ solid for a machine with pretty much the same capacity as
 the CCL. It has 1 more swing and rather less between-centres
 distance, but it has a  bigger spindle bore (30mm rather than 20)

 The apron is huge. Built-in oil pump and a joystick to choose traverse
 or feed in either direction.

 The good:
 Solid. Very solid. 1400kg.
 2-speed geared head + something in the base which can be replaced by a
 VFD (possibly).
 3 jaw and 4 jaw chucks, + collets and collet closer.
 Decent top speed (2000 rpm)
 About half a mile from my house.

 The Bad:
 A lot to throw away. Including the lovely apron gearbox.
 The chucks attach in a funny way. What looks like a Camlock is in fact
 a flange that you poke studs + nuts through, then rotate a collar,
 then tighten the nuts. Not a _bad_ way to attach a chuck, but unusual
 and possibly fiddly.
 Spare parts are likely to be hard to find. And there is probably no
 ready market for the bits I pull off, whereas there would be with
 (say) a Harrison or Colchester.



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Re: [Emc-users] Possible New Lathe

On 27 March 2015 at 14:27, andy pugh bodge...@gmail.com wrote:
 2-speed geared head + something in the base which can be replaced by a
 VFD (possibly).

Though this would mean removing the preselector gearbox. Which would
be slightly sad.

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Re: [Emc-users] Possible New Lathe

2015-03-27 20:36 GMT+02:00 andy pugh bodge...@gmail.com
https://mail.google.com/mail/u/0/?view=cmfs=1tf=1to=bodge...@gmail.com
:

On 27 March 2015 at 18:23, Andrew pkm...@gmail.com
https://mail.google.com/mail/u/0/?view=cmfs=1tf=1to=pkm...@gmail.com
wrote:
There's a latter CNC variant of this lathe. Just ready for CNC
retrofitting.
Same guys doing it (still in the process)
https://www.flickr.com/photos/77436964@N02/15709534684/

Yes, one of those would be rather ideal.

Exactly.

Fascinating to see the base-casting bully stripped down, that's a
seriously big (and pointlessly so) casting.

Oh, soviet engineers definitely did not spare an iron for their machine
tools. There's a tale that Japanese bought soviet machine tools just to get
the metal )

2015-03-27 20:41 GMT+02:00 Pete Matos petefro...@gmail.com
https://mail.google.com/mail/u/0/?view=cmfs=1tf=1to=petefro...@gmail.com
:

That is one of the sexiest things I have ever seen! LOL What kinda
lathe is that?

Hard to guess what a usual (rather small) CNC lathe hides behing its
clothes )
The same model
http://izhevsk.ru/forums/icons/forum_pictures/012160/12160808.jpg
http://img35.olx.ua/images_slandocomua/131441553_1_1000x700_prodam-tokarnyy-stanok-s-chpu-it42-harkov.jpg

Andy
BTW the second is for sale, I've just asked how much they want for it.
Might be ~$1-2K I guess. But the freight would be expensive...

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Re: [Emc-users] Possible New Lathe

On 27 March 2015 at 18:23, Andrew pkm...@gmail.com wrote:
 You can look through this topic for more details (at least photos)
 http://www.cnc-club.ru/forum/viewtopic.php?f=3t=3566

If these are a popular retrofit candidate in points East of here, I am
wondering if there might be people willing to amortise the costs of me
making some custom castings?
I am thinking of a replacement casting for the feeds box to mount a
motor and thrust bearings, an apron casting and possibly a new
top-slide with more room for a ball-nut?

After the Harrison retrofit I am sold on custom castings for
retrofits, and they can be surprisingly affordable. (I think I paid
£250 all-in for 5 castings on the Harrison)

-- 
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http://www.ifixit.com/Manifesto

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Re: [Emc-users] Possible New Lathe



On Friday 27 March 2015 14:36:43 andy pugh wrote:
 On 27 March 2015 at 18:23, Andrew pkm...@gmail.com wrote:
  There's a latter CNC variant of this lathe. Just ready for CNC
  retrofitting. Same guys doing it (still in the process)
  https://www.flickr.com/photos/77436964@N02/15709534684/

 Yes, one of those would be rather ideal.

 Fascinating to see the base-casting bully stripped down, that's a
 seriously big (and pointlessly so) casting.

I dunno Andy. Like too many pickles on a footlong sub, which can't be 
done if you are handing it to me, you can't have too much cast iron 
unless its in the way.  But thats what they make die grinders for isn't 
it?  That thing has got to be hell for stout I'd think.  That equals 
fine finishes to me.  The kind I have to use a dremel with a diamond 
disk turning at its slowest  retracing the surface 100's of times to 
get to the final finish starting  dimension starting from 5 thou over.

Cheers, Gene Heskett
-- 
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 soap, ballot, jury, and ammo. Please use in that order.
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Re: [Emc-users] Possible New Lathe

2015-03-27 16:27 GMT+02:00 andy pugh bodge...@gmail.com:

 I have long been disatisfied with my CNC-converted Chinese lathe.
 It is a cheap copy of the Emco Compact 8 (not a paragon of over-built
 perfection) stretched to 9 centre height and 1000mm bed length. Then
 a milling machine was bolted to the back to really highlight the fact
 that the saddle isn't held down very well.

 So, I have been looking for something to replace it, and I found this
 machine locally (very locally)


 http://www.ebay.co.uk/itm/Centre-lathe-made-by-Stankoimport-Russian-built-/191526503823

 This is an example how it is retrofitted
http://www.flickr.com/photos/77436964@N02/9598472369/
http://www.flickr.com/photos/77436964@N02/12129011955/
http://www.flickr.com/photos/77436964@N02/11383000486/
http://www.flickr.com/photos/77436964@N02/11383000116/
Pretty impressive job!
You can look through this topic for more details (at least photos)
http://www.cnc-club.ru/forum/viewtopic.php?f=3t=3566

Another example of this lathe retrofitted to CNC
http://www.motolab.ru/CNC/611/611-01.htm Use Вперед link at the page
bottom to go further through the project.

To get it CNC'ed you'll need to get rid of most gears and replace the
leadscrews with ballscrews.

There's a latter CNC variant of this lathe. Just ready for CNC retrofitting.
Same guys doing it (still in the process)
https://www.flickr.com/photos/77436964@N02/15709534684/

My opinion: look at the condition of spindle bearings and slide surfaces.
If they're OK, everything else is doable. If not, just pass on this lathe.

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Re: [Emc-users] Possible New Lathe

2015-03-27 Thread Kirk Wallace

On 03/27/2015 10:40 AM, John Thornton wrote:
 Did you finish this project?

 JT

 On 3/27/2015 12:16 PM, Kirk Wallace wrote:
 http://www.wallacecompany.com/cnc_lathe/

I haven't wanted to rush this project, so it has been pretty much as 
seen on the website for the last nine years. I put the carriage apron 
back on and use it manually. It's a fairly large lathe and comes in 
handy, so it does get used.


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http://www.wallacecompany.com/machine_shop/
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Re: [Emc-users] Possible New Lathe

2015-03-27 Thread Pete Matos

That is one of the sexiest things I  have ever seen!   LOL   What kinda
lathe is that?

Pete


On Fri, Mar 27, 2015 at 2:36 PM, andy pugh bodge...@gmail.com wrote:

 On 27 March 2015 at 18:23, Andrew pkm...@gmail.com wrote:
  There's a latter CNC variant of this lathe. Just ready for CNC
 retrofitting.
  Same guys doing it (still in the process)
  https://www.flickr.com/photos/77436964@N02/15709534684/

 Yes, one of those would be rather ideal.

 Fascinating to see the base-casting bully stripped down, that's a
 seriously big (and pointlessly so) casting.

 --
 atp
 If you can't fix it, you don't own it.
 http://www.ifixit.com/Manifesto


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A and N Precision and Fabrication
Maryville, Tennessee
865-236-8996
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Re: [Emc-users] Possible New Lathe

2015-03-27 Thread Viesturs Lācis

2015-03-27 19:56 GMT+02:00 andy pugh bodge...@gmail.com:
 The slides are relatively huge compared to the CCL, and the saddle is
 at least 3 x wider too

Bastards made good machines for export, but sold crap for domestic use...

Viesturs

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Re: [Emc-users] Possible New Lathe

On 27 March 2015 at 18:23, Andrew pkm...@gmail.com wrote:
 There's a latter CNC variant of this lathe. Just ready for CNC retrofitting.
 Same guys doing it (still in the process)
 https://www.flickr.com/photos/77436964@N02/15709534684/

Yes, one of those would be rather ideal.

Fascinating to see the base-casting bully stripped down, that's a
seriously big (and pointlessly so) casting.

-- 
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto

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Re: [Emc-users] Possible New Lathe

2015-03-27 22:01 GMT+02:00 andy pugh bodge...@gmail.com
https://mail.google.com/mail/u/0/?view=cmfs=1tf=1to=bodge...@gmail.com
:

 On 27 March 2015 at 18:23, Andrew pkm...@gmail.com
 https://mail.google.com/mail/u/0/?view=cmfs=1tf=1to=pkm...@gmail.com
 wrote:
  You can look through this topic for more details (at least photos)
  http://www.cnc-club.ru/forum/viewtopic.php?f=3t=3566

 If these are a popular retrofit candidate in points East of here, I am
 wondering if there might be people willing to amortise the costs of me
 making some custom castings?
 I am thinking of a replacement casting for the feeds box to mount a
 motor and thrust bearings, an apron casting and possibly a new
 top-slide with more room for a ball-nut?

 After the Harrison retrofit I am sold on custom castings for
 retrofits, and they can be surprisingly affordable. (I think I paid
 £250 all-in for 5 castings on the Harrison)

 Well... I would not say retrofitting them to CNC is very popular. I don't
remember anyone doing this right now (doesn't mean there's really no one).
I'll look on the forums.

BTW I just discovered more photos of that CNC lathe
https://www.flickr.com/photos/77436964@N02/sets/72157643053087204


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Re: [Emc-users] Possible New Lathe

Well, I put in a £1000 offer for the lathe, as it isn't quite right
for me as far as timing goes (as in, the CCL is still in the space the
CCCP lathe could be )

Maybe I can do a tour of Communist lathe producers :-)

-- 
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Re: [Emc-users] Possible New Lathe

2015-03-27 23:47 GMT+02:00 andy pugh bodge...@gmail.com
https://mail.google.com/mail/u/0/?view=cmfs=1tf=1to=bodge...@gmail.com
:

 Well, I put in a £1000 offer for the lathe,


Reasonable offer.


 as it isn't quite right
 for me as far as timing goes (as in, the CCL is still in the space the
 CCCP lathe could be )


CCL goes for Chinese CNC Lathe, or I've missed something? )


 Maybe I can do a tour of Communist lathe producers :-)


I guess there are very few of them remain.
Specifically, the factory that produced this lathe was declared bankrupt
recently. Went under to the (civilized world) competitors.


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Andrew
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Re: [Emc-users] Possible New Lathe

On 27 March 2015 at 22:10, Andrew pkm...@gmail.com wrote:

 CCL goes for Chinese CNC Lathe, or I've missed something? )

Cheap Chinese Lathe :-)

 Maybe I can do a tour of Communist lathe producers :-)

 I guess there are very few of them remain.
 Specifically, the factory that produced this lathe was declared bankrupt
 recently.

That's a shame. I would have thought that they were actually in quite
a good position to compete in the world markeplace. (They had the
tooling, raw materials and energy are relatively cheap).

I would feel bad if it was US / Europe sanctions aimed at
Putin/Ukraine that caused that.

-- 
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto

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Re: [Emc-users] Possible New Lathe