Don Derry Boring Bar

Re: Don Derry Boring Bar *LINK*

Fred Holder

>The Don Derry Boring Bar works quite well on small to medium size hollow forms. I've never used one but I've watched Don use it several times. My wife also has one and has used it quite successfully. Don's boring bar is designed to use on a lathe that can be run in reverse and you cut on the right side of the hollow form. At the time my wife bought hers, she didn't have a lathe that would reverse, so I removed the cutter and reversed it so that she could use it on her Comet lathe. For a little more money, the TurningWays mini-boring bar works significantly better.


Fred Holder's domain Site

Re: Don Derry Boring Bar

Don Evans

>Does Derry have an internet site?

Would appreciate the link if anyone has it.

Yes he does...  *LINK*

Russ Fairfield

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http://www.donaldderry.com

Re: Don Derry Boring Bar

Doug Leite

>Jonathan,

In Feb. of this year, our club had a Don Derry demo and I did a hands on with him also. My experience with his tool is limited to this demo and hands on and I feel that it is a good tool to have, if you are into hollow turning. Quite a few of our members bought the setup with the laser and everyone seems satisfied, although one guy has added some UHMW sheet to the flat bars to make it slide easier.

Aloha

Hawaii Turner

Re: Don Derry Boring Bar

Lyn J. Mangiameli

>I have had Donald Derry's hollower for about six months now and think very highly of it. It wasn't mentioned in the first installment of the hollowing tools article as it will be discussed later with (nearly) all the other restrained hollowing rigs (I've actually already written my comments on it, but the whole survey runs to over 40 pages and requires printing over several issues). I also intend to write a seperate full review on it, but that won't come out until all the installments of the hollowing survey are complete.

It can be configured for use with the lathe turning in reverse(which is Derry's preference), or for the standard direction of rotation. You loose a slight amount of laser clearance for the latter. BTW, it has the most precise laser adjustment of any tool I have used of this type.

There are several little tweaks that make the gate work better, which I will go into in the full article. One of the most helpful is to but a hardened spacer around the distal bolt so that it better maintains constant gate spacing and can be used as a pivot pin for the cutting shaft.

There is a lot more to be said, and I'll try to cover them all in the reviews. This is a tightly integrated unit that has the advantages and disadvantages that come from such tight integration. I have used mine on both my DVR (in reverse rotation) and on my Jet Mini (obviously in standard rotation) and I really like using this unit for many small to medium sized vessels.

THX Russ

Don Evans

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Re: Don Derry Boring Bar

jonathan spool

>Thanks everyone,

Through your help, in a couple of days, I have gone from discovering a tool, to knowing quite a bit about it (talking to Don helped too!). I ordered one today. I had to think a bit about whether I would want to use a tool that cuts in reverse, but when I could think objectively, it makes quite a bit of sense. I won't need to get a saddle for my lathe, and if the entry hole is large enough, I might actually see what I'm doing without throwing out my neck! And, I can leave my lathe a little closer to the wall. All I'll have to remember is to make sure my chuck is screwed on tight!

Jonathan