Woodfast wood lathe headstock thread identity

[88rob88]

I recently acquired a Woodfast lathe that’s date stamped 1964. Im having trouble identifying the thread on the head stock. Does anyone know what it is?
Thanks!

[Paul39]

Most likely Imperial thread. Use a rule to get threads per inch. Wrap a piece of paper around the threads and mark, lay flat and measure between marks, that gives you circumference. Divide by 3.1416 to get diameter. It will likely be 12 TPI X 1 inch, sometimes 8 TPI X 1 inch. Usually expressed 1 X 12 or 1 X 8.

To be sure take your calculations to an engineers shop and buy a nut of that size and try it on the spindle. The nut can be used to make a sanding disk or faceplate.

[NeilS]

Ring Graham or Steveat Woodworking Solutions and they will tell you.

403 Forbidden



Sent from my ZTE T84 using Tapatalk

[NeilS]

That contact page is not Forbidden, but if anxious about clicking on that link, here is their phone number.... (08) 8241 2205

Ring early in the day and before abt. 3pm.

Sent from my ZTE T84 using Tapatalk

[Lyle]

My old woodfast made in Aust was 1 inch 10tpi.
Lyle

[China]

As said above 99% 1" 10 tpi

[NCArcher]

I have two of a very similar vintage. 1", 10 tpi.

[powderpost]

It will be 1" x 10 tpi.

Jim

[88rob88]

It will be 1" x 10 tpi.

Jim

Ive tried that... would not thread on.
I took the lathe to my local nuts and bolt shop today and they suggested it was an “Ajax” thread and said it would expensive and difficult to get a nut. Something about a tapered thread. I did not believe it, so posted here. I wonder if the thread is just damaged...preventing the 1” 10 from starting. I’ll try a die.

Thanks everyone!

[88rob88]

Can someone with an older Woodfast take a close up picture of the indexing pin. Mines missing and I’m guessing I’ll have to make a new one....

[Ironwood]

Ive tried that... would not thread on.
I took the lathe to my local nuts and bolt shop today and they suggested it was an “Ajax” thread and said it would expensive and difficult to get a nut. Something about a tapered thread. I did not believe it, so posted here. I wonder if the thread is just damaged...preventing the 1” 10 from starting. I’ll try a die.

Thanks everyone!

That doesn’t sound right.
Dont use a die on it until you know what thread you are dealing with. Does the thread look damaged ?
Did they measure your thread with a thread pitch gauge ? a shop like that would surely have one.
Can you take some photos of the thread. Try and get one with an imperial steel rule along the top of the threads so we can try and see what pitch it is. Do you have a vernier calliper to measure the diameter?

[Ironwood]

Been thinking about this a bit more. As far as I know, Ajax is a company that manufactures nuts and bolts of all descriptions, it is not a specific thread type.
Are you sure they didn’t say Acme ? It is highly unlikely that the spindle was manufactured with an Acme thread, but if someone has screwed something on with a different thread, they may have butchered it enough to resemble an Acme thread.
Unless you can post some photos, it’s a waste of time speculating any further. We need photos.

[88rob88]

I actually work for the specialist Nuts and Bolts supply shop and have not been able to identify the thread. Nor did a more experienced employee. I’ll take it back and get the most experienced guy take a look. I’ll also get a 1” 10tpii nut and cut it in half and see if it meshes. I won’t use a die until the thread is confirmed. It may just be a problem with the first couple of threads on the head stock...

[88rob88]

Oh....the guy suggested that it was a tapered thread. And he insisted that was called Ajax. It sounds as tho he knows nothing. I’ll let another guy take a look. Meanwhile I’ll post some pics

[88rob88]

Should be pictures of the thread....