A new larger chuck for the large

[Paul Allwood]

I had been frustrated by the small 7/8" bore on the original 3 jaw lathe chuck for years, so I bought a new larger chuck with a 1-3/4" bore. Can't change the bore through the headstock but this will help.

I started with a piece of rusty scrap that had a few holes in it, and a faceplate that came with the lathe when I bought it 30 years ago.

The end result - +/- 0.001" runout on the chuck od. Same on a ground pin in mounted in the chuck jaws. I'm happy with that.

 

[Sawdust&Shavings]

I had been frustrated by the small 7/8" bore on the original 3 jaw lathe chuck for years, so I bought a new larger chuck with a 1-3/4" bore. Can't change the bore through the headstock but this will help.

I started with a piece of rusty scrap that had a few holes in it, and a faceplate that came with the lathe when I bought it 30 years ago.

The end result - +/- 0.001" runout on the chuck od. Same on a ground pin in mounted in the chuck jaws. I'm happy with that.

View attachment 169271

View attachment 169272

View attachment 169273

View attachment 169275

View attachment 169276 View attachment 169274

Sweeeet…you’re going like it a lot; nice work.

 

[Paul Allwood]

Sweeeet…you’re going like it a lot; nice work.

Thanks. Yeah, I think it will be a lot better.