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suggestions for long hole boring chuck.. (Read 617 times)
 
Rich Gouette
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04210, Maine, USA
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Re: suggestions for long hole boring chuck..
Reply #15 - Nov 2nd, 2017 at 3:32pm
 
Ed Weber wrote on Nov 2nd, 2017 at 3:20pm:
It my understanding that they used "basically" a spoon or D type drill bit that is less prone to wander.


I'm planning on rolling my own....as it were..
Smiley
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Ed Weber
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Re: suggestions for long hole boring chuck..
Reply #16 - Nov 2nd, 2017 at 4:31pm
 
I don't see a whole lot of other options unless you know some pipe makers.
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Bill Moschler
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Re: suggestions for long hole boring chuck..
Reply #17 - Nov 2nd, 2017 at 7:25pm
 
I wil chime in again.  Since the tailstock is hollow I would purchase a hollow cup center and feed the drill through the hollow center.  Look at Packard woodworkings long hole boring kit for suggestions of a way to do it. .  I am very leary of the steady rest, chuck idea.  I think the leverage from the steady rest will wobble the chuck loose ;and then the drill will pull the work out of the chuck.  More of a problem with a twist drill or auger I guess.  The answer to how the old guys did it is a hollow cup center and tailstock and a lamp auger or almost any drill fed through the tailstock.  Your idea might work but the cup center drill combination is a proven idea that has bee used for centuries.  You could bush one of the 3/8 or 5/16 down to 3/16 if that is really what you want.  You will need the chuck likely anyway.  Not so much the steady rest.
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« Last Edit: Nov 2nd, 2017 at 7:34pm by Bill Moschler »  
 
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Rich Gouette
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04210, Maine, USA
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10 in. x 18 in. 5 Speed 1/2 HP Benchtop Wood Lathe

Re: suggestions for long hole boring chuck..
Reply #18 - Nov 2nd, 2017 at 7:36pm
 
thank you Bill!
funny, I was looking for just such a center, but didn't search hard enough..
I shall investigate straightaway!

Rich
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Rich Gouette
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04210, Maine, USA
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10 in. x 18 in. 5 Speed 1/2 HP Benchtop Wood Lathe

Re: suggestions for long hole boring chuck..
Reply #19 - Nov 2nd, 2017 at 7:38pm
 
although, I'm probably going to run out of room....with a center added on

hmm
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Rich Gouette
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04210, Maine, USA
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10 in. x 18 in. 5 Speed 1/2 HP Benchtop Wood Lathe

Re: suggestions for long hole boring chuck..
Reply #20 - Nov 2nd, 2017 at 8:03pm
 
good news!

I just learned that my lathe takes a bed extension....

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Don Stephan
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Re: suggestions for long hole boring chuck..
Reply #21 - Nov 3rd, 2017 at 8:05am
 
If you envision making a number of these, you might investigate adding an extension to your new lathe, versus returning the lathe and buying one with a longer bed.  Don't know how the costs would compare, but I would expect all other things equal a longer lathe would be stiffer and have less chance for alignment issues than a shorter one with an extension.

If memory is correct, you are wanting to work with a piece of wood 16" long.  That is a challenge for any chuck so you might consider which brand(s) have a reputation for the best holding ability.  I have limited experience with my Nova chuck, and hundreds of hours of experience with my Vicmarc.  I bought the latter when one of my first bowl attempts came out of the Nova chuck, and feel the Vicmarc has significantly better holding ability.  There is a price difference, but a 16" long blank seems like a severe challenge for a chuck.
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Rich Gouette
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04210, Maine, USA
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10 in. x 18 in. 5 Speed 1/2 HP Benchtop Wood Lathe

Re: suggestions for long hole boring chuck..
Reply #22 - Nov 3rd, 2017 at 8:40am
 
I'm seeing Rockler sells an extension for $76.00 that effectively doubles the bed length.
Every outlet online is out of them, and I think I know why..
My theory is there's a ton of fellas like myself who after buying the 18" lathe, now find they could use more  bed...

Shocked
thanks,

Rich
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Ed Weber
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Re: suggestions for long hole boring chuck..
Reply #23 - Nov 3rd, 2017 at 8:48am
 
As  it was mentioned earlier, some type of spindle steady-rest will be required. Some rigs also utilize a drill bit guide in conjunction with a spindle steady, this will most likely be needed if your tailstock quill is solid.
Nova has "Saw Tooth" jaws
Vicmarc has "Shark Tooth" jaws

JMO,
I could probably make one of these with the tools I have on hand (except maybe a long bit) but if you're going to the time effort and expense, of purchasing tools and making jigs, I would have to make several to justify the cost.
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« Last Edit: Nov 3rd, 2017 at 8:49am by Ed Weber »  
 
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Rich Gouette
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04210, Maine, USA
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10 in. x 18 in. 5 Speed 1/2 HP Benchtop Wood Lathe

Re: suggestions for long hole boring chuck..
Reply #24 - Nov 3rd, 2017 at 9:25am
 
ok, this is exactly what I was thinking:

As a Hollow Cup Center

When drilling through the tailstock of your lathe, put the hollow safe driver in place of your live center. The safe driver doesn't have bearings, you'll just to set it into you workpiece and let the wood spin on the front on the safe driver. Don't worry, people turned like this for thousands of years before ball bearing live centers were invented. In this case, the safe driver is performing as a cup or "dead" center. Make sure you regularly lubricate the tip of the safe driver with a a few drops of oil.



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Ed Weber
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Re: suggestions for long hole boring chuck..
Reply #25 - Nov 3rd, 2017 at 10:46am
 
That'a all well and good and everyone who operates a lathe should know it.
If your tailstock quill doesn't have a hole through the middle, it doesn't really matter what type of center you use.
You need a hollow center tailstock, not just center
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Ed Weber
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Re: suggestions for long hole boring chuck..
Reply #26 - Nov 3rd, 2017 at 10:51am
 
Example
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Rich Gouette
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04210, Maine, USA
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Re: suggestions for long hole boring chuck..
Reply #27 - Nov 3rd, 2017 at 11:08am
 
oh, you missed the update earlier where I corrected myself: it IS a hollow tailstock

Smiley

neat gif though!
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Don Stephan
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Re: suggestions for long hole boring chuck..
Reply #28 - Nov 3rd, 2017 at 11:43am
 
One of the many questions I posed at the start of the discussion, so that respondents could give you information.  I was not trying to be unpleasant.
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Rich Gouette
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04210, Maine, USA
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Central MAchinery
10 in. x 18 in. 5 Speed 1/2 HP Benchtop Wood Lathe

Re: suggestions for long hole boring chuck..
Reply #29 - Nov 3rd, 2017 at 11:51am
 
I think early on, when I read, "Is your tailstock hollow?"
My brain for some reason thought , "center"

Roll Eyes
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