0 MT

The Sherline lathes use that size, have a word with Millhill supplies

Sorry Jonathon - just re-read your post and realised the lathe was built by your grandfather, so my comment was pointless...

Neil

Edited By Neil Wyatt on 14/08/2014 15:50:47

We had the same subject come up on another forum, there is not that much choice though there is a link to an e-bay seller in the US for arbors so just add a chuck

Could that not be your 1st project? Make a 0MT to #JT arbor.

John

There are some 0MT arbours/chucks about on the web. Most of the commercial small lathes that have 0MT use the short 0MT version, which is the smaller half. Full 0MT arbours and centres stick out too far for serious use. Might be worth checking the lathe to see if your grandfather followed this practise.

HTH

Rod

I have a 'Golden Goose' brand Jacobs chuck on a JT0/MT1 arbor that weigh just 100g, the size would suite MT0 nicely. It's nice and smooth and holds drills down to number 80. It's also very nicely finished.

I recall that I got it from Arc Euro, but I could be wrong. They list chucks this size, but tehy may not be this brand.

Neil

Cowells use them I believe

I have an MT0 dead centre somewhere if that's useful to you - no use to me.

Steve

I think you will find the only alteration these companies make to No 1 Morse taper arbors is to shorten them by cutting some off the small diameter end. If they altered the taper in anyway it would no longer be a No 0 Morse item.

Jonathon,

The RDG arbor is long, about 1 5/8". I am going through a similar exercise with a Super Adept and that has a short hole for a stubby centre in both tailstock and headstock and in my instance, although the taper is M0 the top dia is 0.25"and just about coincides with the bottom dia of the RDG arbor. The first job was to set up another machine, I have a little Zyto with offsetting tailstock, match up the taper with a dti and then turn down the top portion of the arbor till I got to the required 0.25 dia, cutting off the remnant after double checking I got the taper and dia right as there is no going back!! I was lucky to have rescued a suitable 0 -1/4" chuck from a dead pistol drill some time ago so I only spent money on the arbor.
I hope you dont have the small hole as on my machine but there is a way round it.
Bob D
Does any one else only see spelling errors after printing/posting?

Edited By Robert Dodds on 18/12/2014 15:05:26

The story is that Adept tapers are the small end of MT0. I have an MT0 centre and adept head and tailstocks here on the bench. It may well be the same tape, but the small end of the MT0 is till to big. I think the Adept taper is best thought of an an 'unofficial' MT00.

Neil

My Flexispeed is definitely the small end of a 0MT which, sadly, means that cutting down a full 0MT arbour isn't an option. This is a full OMT centre sitting in the tailstock.

All the full 0MT centres I've seen are hardened but as it's a good bet that they are carbon steel they should be fairly easy to soften.

Rod

Hopefully this photo of a brutally abused Super Adept headstock can be the definitive proof that the spindle taper was NOT the small end of 0MT - unlike Rod's Flexspeed and no doubt several other small lathes.

The drill arbour is 1MT for comparison.

Neil

Edit: I was struck by the fact the 0MT centre is longer than the 1MT arbour. In fact, the specification is for the gauge depth of the 0MT to be just 1/8" less than 1MT, at exactly 2", and as centres have to stick out a bit further....

Edited By Neil Wyatt on 18/12/2014 17:46:14

A photo of my turned down, cut down RDG arbor ready to fit to the chuck
The as turned taper needed a bit of lapping paste and polishing up to get it to grip reasonably in the tailstock socket
Note the  flats on the 15mm shoulder dia. to allow a13mm spanner to tighten/undo the arbor from the drill chuck

Bob D

Edited By Robert Dodds on 18/12/2014 19:39:23