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Author Topic: Bump Lathe Centering Tool  (Read 474 times)

Weedensteam

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Bump Lathe Centering Tool
« on: October 22, 2020, 10:50:04 am »
I've used a piece of hard wood for this, like this idea, think it will be a project.

http://www.clickspringprojects.com/bump-lathe-centering-tool.html
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Stoker

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Re: Bump Lathe Centering Tool
« Reply #1 on: October 22, 2020, 12:07:55 pm »
I think you'll be really happy to have that Frank. I made one in the long ago, though I don't quite remember where I got the idea for it. Might have been from Dean Williams, back when he was an active member of the other Forum. His website probably has a build thread on it, or at least a recommendation for it. In any case, it will get you close to good positioning far faster than manual indexing with a gauge will, though for ultimate precision, you should probably do a final finish on any set-up by checking with an indicator, just to be sure.
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Jim

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Re: Bump Lathe Centering Tool
« Reply #2 on: October 22, 2020, 05:14:04 pm »
I made one of these three years ago, I use it a lot and it works great.

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Nu2modlin

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Re: Bump Lathe Centering Tool
« Reply #3 on: October 29, 2020, 01:08:33 pm »
Looks like it works fine.
I made mine out of a steady rest roller. I milled a flat so I could clamp it in my QCTP.
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yozhek

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Re: Bump Lathe Centering Tool
« Reply #4 on: November 04, 2020, 12:45:07 am »
Great idea, thanks for sharing

txlabman

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Re: Bump Lathe Centering Tool
« Reply #5 on: December 04, 2020, 04:31:31 pm »
Great idea Frank and Jim.

Jim: could you send me some pictures as I want to build one for my lathe.

Jim

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Re: Bump Lathe Centering Tool
« Reply #6 on: December 05, 2020, 05:03:50 pm »
G'day Charlie, really really simple mate.

I just used a piece of 10mm x 10mm steel with a hole drilled in the end for the size of the bolt through the bearing.

Bearing is a large 32mm diameter one that I had in my spares box.

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Jim

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krypto31337

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Re: Bump Lathe Centering Tool
« Reply #7 on: December 06, 2020, 08:18:28 pm »
Here's another variation of the lathe bump tool with just two bearings pressed onto a piece of drill rod.  Pretty simple to make.

Works well if you have a tool holder with the notch for holding round objects.

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tenniV11

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Re: Bump Lathe Centering Tool
« Reply #8 on: December 07, 2020, 12:06:32 pm »
Yes you all a right - a very essential tool that belongs to
every workshop - very handy and easy to use



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made with a roller bearing from Inline Skates

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