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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