In principle, you would have a first step on the road to cutting threads … but you would still need to implement the appropriate reduction-gearing for the various pitches [this can be done either electronically or mechanically] AND replace the belt  with something synchronous !

All do-able, but quite a project.

MichaelG.

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https://www.facebook.com/siegind/videos/c0-automatic-feeder-installation/3654165684707691/

If you only want to thread small sizes, say up to 8mm, taps and dies are absolutely fine. It’s easier if you have a  tailstock die holder and a handle to turn the spindle manually.

The C0 uses a belt to give the auto feed so does not need changewheels. Similar arrangement to a Unimat 3 which it is a copy of.

Taps and dies will do for what you are likely to be able to make on teh C0, I did a Stuart 10V on my U3 so it should be upto that sort of work.

Not something you would want to do all the time but if anything like the U3 then a deeper cut is possible

I had another dig-around

This looks like a viable alternative approach

https://youtu.be/QCP-pEzeMu4?feature=shared

… Just replace his simple control box with an ELS unit and screw-cutting is GO

[no change-wheels required]

MichaelG.

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I have a Sieg C0 with the power feed attachment. I still use it occasionally for small parts if there’s a setup on my Warco WM250V that I don’t want to disturb.

The power feed’s a *very* basic accessory. All it does is use a drivebelt to rotate the leascrew to drive the carriage. It’s a fixed ratio so you have a single feed rate per rev. You could theoretically turn up different sized pulleys to achieve different rates but that’d be fraught with other issues relating to belt tension. Nevertheless it can save time and effort turning longer diameters.

Effectively threading can only practicably be achieved with taps and dies, and in any case larger threads requiring expensive ones would be beyond its reasonable capacity.

I also a made a Stuart 10V on a U3 I had in the past. The C0 isn’t as “nice” as the U3 but it is a little more powerful, comes as a ready-use installation with splashback etc., and will do similar work. I bought the C0 when I too had extremely limited space and I’d say it did what I could reasonably expect of it, and I wouldn’t lightly dispose of it now I have it.

Not auto-feed related topic, but I would suggest if possible to check the C0 chuck before buying it. I have an early 2000’s Axminster model and the chuck is horrible. No amount of cleaning or lubrication seems to make it work properly. Nothing is square and it is clamping more with the bottom part. And the only decent 14×1.4mm replacement chuck that I’m aware is the very expensive one from Sherline. I hope 20 years later they make better baby lathe chucks.