Mikron Lathe Help needed

Hello all,

I hope I have posted this to the right thread. I am new here so please do let me know if I have made a mistake.

I may have an insurmountable problem here, but I thought someone here might have some ideas.

I am the very proud owner of a wonderful Swiss Mikron T-90 Clockmaker's lathe. These lathes have an unusual headstock screw mount for a chuck. I am finding it nigh on impossible to find a chuck with the correct backing plate and I certainly don't have the skills to machine one. Are there places I could have one machined for me? Any suggestions?

Thanks so much,

NIck

I don't know if you have seen the Mikron catalogue on the Anglo Swiss Tools site?

**LINK**

If anyone knows or can find out the thread it would be Michael Samways there. However unusual it can't be than hard to machine. Can't you just measure it? It's likely to be a metric thread form, so find out OD and pitch.  I'm sure a jobbing engineering shop could take it on, or you may get a volunteer from this site.

Edited By John Haine on 23/10/2018 11:58:06

Nick Palliser:

If you give some indication of your location a volunteer may be more readily forthcoming.

Thank you John. I am close contact with Dr Samways and yes he has all the dimensions. I simply didn't know how to go about getting one made or even how to find a machine shop. You can tell how ignorant I am.

Thank you. I am based just outside Kettering in Northants. I would love to hear of anyone not too far away who might be able to help me.

I don't know about MEs that are local but a quick search for "Kettering Engineers" on Google brings up lots of hits and one called Tordoff Engineering at #3 looks about the right scale.

Hi Nick

If you post details of the spindle nose thread and any spigot /face you may get further help from this forum.

Emgee

I'm travelling up your way next week. Making a backplate should be a straightforward enough job.

So kind of you Pete. Unfortunately I am working in London all week next week with no workshop time. Another time maybe?

Here is a picture of the spindle nose. I have asked Dr Samways of Anglo Swiss Tools if he has the exact parameters. I am waiting for his reply.

I'm working in London too. The last year I've been at E14, currently in Sw15.

What size chuck are you looking to fit?

I am looking at a 125mm

Edited By Pete Rimmer on 24/10/2018 11:23:27

The original Mikron 3 jaw was 110mm and the 4 jaw was 150mm. 125 should be ok i trust.

Is the register the taper behind the thread as opposed to the parallel portion behind the taper?

Please forgive my ignorance, but I don't understand what that means.

.

Nick,

The majority of lathes with screw-on chucks have a plain [cylindrical] register 'after' the thread.

Yours appears to have a cone [which would be much nicer]

MichaelG.

.

Which is fine if you already know what a 'register' is.

... I think Nick needed a little more explanation.

MichaelG.

Apologies and thanks respectively to the above.

The Mikron spindle seems to combine the advantages of both taper and threaded spindles.