Another lathe "work truing" tool

Hi,
this week end , I was turning a new Titanium ring and, in the middle of the work, just after separating the ring from the stock, I had to rechuck my ring in order to dress the cut face.
And suddenly, the light came, I remembered the recent post from Canobi : lathe "work truing" tool and realized that it was exactly what I needed right now.

So I quickly made my simple version of it out of what I happened to have in the scrap box :

A roller-blade ball bearing, a spacer also from the same roller blade, a screw, a piece of square section stock.
OK, the hole is not well centered, but who cares ?
http://www.labellenote.fr/file/homem...te_Tour_01.jpg

Here we go !
http://www.labellenote.fr/file/homem...te_Tour_02.jpg

http://www.labellenote.fr/file/homem...te_Tour_03.jpg

Of course, I tightened the chuck after truing the workpiece.

Thanks Mr Canobi , useful tool, I should have done that earlier (as always)

Cristophe,
Thanks for posting, also thanks to Mr. Canobi.
I must also make this wonderful tool. Truing would be much easier and faster than use of dial indicator and rubber hammer.
Regards
LMMasterMariner

...another special tool for my Quiver!

Thank you!

there truing tools are the kind of things you don't think about needing until you see one many times I have trued parts in my lathe by simply keeping a piece of brass clamped in a QC holder never thought about the simplistic design of using a bearing LOL, the sacrificial brass has worked for years but now I think I'll make one just because

Ha ha, forgetting to mention tightnening the chuck after truing is going to hang over my head for quite awhile I imagine. Good job on your tool, so handy for something so simple.

Quote:

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Originally Posted by Canobi

Ha ha, forgetting to mention tightnening the chuck after truing is going to hang over my head for quite awhile I imagine. Good job on your tool, so handy for something so simple.

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:smash:
Yes I noticed we have scrupulous readers and didn't want to get comments :)

Thanks again for the idea !

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Thanks Christophe Mineau! We've added your Lathe Work Truing Tool to our Lathe Accessories category,
as well as to your builder page: Christophe Mineau's Homemade Tools. Your receipt:

<div id="blocks"> <div class="block b1 pngfix"> <div class="bimg"> <div> <a href="http://www.homemadetools.net/homemade-lathe-work-truing-tool-2"> <img src="/uploads/201572/homemade-lathe-work-truing-tool-2.jpeg"/> </a> </div> </div> <div class="head pngfix"></div> <div class="left pngfix"></div> <div class="right pngfix"></div> <div class="blockover b1 pngfix"> <div class="title"> <a href="http://www.homemadetools.net/homemade-lathe-work-truing-tool-2">Lathe Work Truing Tool</a> <span> by <a href="http://www.homemadetools.net/builder/Christophe+Mineau">Christophe Mineau</a></span> </div> <div class="tags">tags: <a href='http://www.homemadetools.net/tag/lathe'>lathe</a>, <a href='http://www.homemadetools.net/tag/truing'>truing</a> </div> </div> </div> </div>
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I like your truing tool idea. I hope to make one when I get time.

It's yet another way to skin a cat and a good one too. Would be faster than looking for a spacer to put behind the work piece in the chuck unless that particular spacer can come out of hiding and mount itself in the chuck and then not forget to remove itself before the chuck starts spinning....

Christophe, I know you work wood as well as metal and wondered if you could use a similar tool to true up a wooden bowl when you've reversed it in the chuck? Obviously you'd need some sort of mount for it in the tool rest but have you ever tried it?

Hi Logrod,
This is funny, this is something I tried last week end on the wood lathe.
Actually I had medium result, and I concluded that the main thing that didn't make it work was the difference between my wood-lathe chuck and my metal-lathe chuck.
The metal lathe has smooth jaws, allowing for some gliding adjustment if you don't tighten it too much, where the woodworking jaws have a grip and do not allow for that.
Of course, if you can find some smooth jaws for the woodworking chuck, it would allow the adjustment, but on the other hand, you will loose in safety.
I think I will keep my grip on the jaws :)

It could be interesting, for the bowl alignment you are talking about, to make a kind of truing plate that would fit in the tailstock, with a disk large enough for touching the edges of the bowl, and that would be true to the lathe axis.
You could apply the bowl against the disk before tightening the chuck.
Could work, maybe not ...