Metal Lathe Centering Roller Tool for chucked item

[Jim Dobson]

Metal Lathe Centering Roller Tool for chucked item

A simple idea how I quickly center up small pieces of offcuts. Not saying this is how anyone else should do it, but it works accurately for most of the work that I do. It doesn't replace your Mitutoyo dial indicator for super accurate work, but as I say in the video its quick and easy.
Hope it helps someone out.

https://www.youtube.com/watch?v=GfoSqPa0zgQ&t=228s

[efrench]

Have you tried using it as a burnisher?

[Jim Dobson]

Have you tried using it as a burnisher?

No I haven't but I can see after thinking about it that you could.

 

[philf]

I thought of trying mine to burnish items. I'd angle it by a degree or two. I may try it later!

I've seen designs for a burnishing tool using a ball race and a ball bearing but burnishing couldn't get anywhere near a corner.

My version of the Centering Roller has two bearings so that I can nudge things in X & Y without removing it from the toolholder.

[Jim Dobson]

I thought of trying mine to burnish items. I'd angle it by a degree or two. I may try it later!

I've seen designs for a burnishing tool using a ball race and a ball bearing but burnishing couldn't get anywhere near a corner.

My version of the Centering Roller has two bearings so that I can nudge things in X & Y without removing it from the toolholder.

Be interesting Phil to see how it works for you if you try it.

[philf]

Jim,

I did try it but only on a piece of stock Al alloy. (As extruded).

I ended up with a nice round piece with a smooth surface and it only seemed to make about 0.01mm difference to the diameter. (Not that the original was perfectly round.)

I'll repeat and take some photos.

Phil.

[Jim Dobson]

Thanks Phil, appreciated.