Longworth Chuck

Great job.

Great job, Gerry. Sooner or later I’ll make my own. Thanks for sharing (and pushing!). :-)

Best,

Serge

http://atelierdubricoleur.wordpress.com

-- Learn from yesterday, work today and enjoy success tomorrow. -- http://atelierdubricoleur.wordpress.com

Gerry, nice job, could you share the steps taken to center the bowl for finishing?..thanks..samiam2

samiam2—It self-centers … you just have to be careful to tighten bolts equally as the rubber compresses as you tighten. If you get a little off one way or the other, you can adjust my loosening/re-tightening bolts. Ron Brown (coolhammerman) has a YouTube video that describes how to do this.

The key to making these things so they center properly is to route the arcs consistently. To do that, I drilled (tiny) registration holes for the leg on my compass, made a jig that replaces the base plate on one of my plunge routers, and used the registration holes as pivot points while I routed.

—Gerry

-- Gerry -- "I don't plan to ever really grow up ... I'm just going to learn how to act in public!"

Serge—Once I figured out how to do the initial layout of the arcs, it went pretty quickly … about 3 hours, I think.

—Gerry

-- Gerry -- "I don't plan to ever really grow up ... I'm just going to learn how to act in public!"

What size bolts did you use? I made the mistake of using #8 machine bolts on mine and they bent all to hell the first time my gouge caught. Version 2.0 will have 1.4”, I think.

-- -=Pride is not a sin=-

grfrazee—I used 1/4” x 20 hex bolts.

—Gerry

-- Gerry -- "I don't plan to ever really grow up ... I'm just going to learn how to act in public!"

Seems to me you should be able to use some kind of spring system on the opposite side of the chuck to help with the centering process. hmmm. Better minds than mine should know what I mean, and be able to make it work….

-- Beer, Beer, Thank God for Beer. It's my way of keeping my mind fresh and clear...

Milo—Longworth’s design is really pretty easy and pretty much fool-proof … no need for springs, brackets, etc.

—Gerry

-- Gerry -- "I don't plan to ever really grow up ... I'm just going to learn how to act in public!"

Very nice looking Longworth chuck, and you get the satisfaction of using a great tool that you made yourself
every time you turn something with it. Thank you for sharing.

-- As ever, Gus-the 74 yr young apprentice carpenter

Great Job Gerry thks for posting it

-- Rj's Woodworks,San Jose & Weed Ca,

Hello The dane

I must make one like your

A nice jig and a lot of possibilities for the lathe (and the future !!!!)
How many time did you need to make it ?

Thanks for sharing

-- Diggerjack-France ---The only limit is the limit of the mind and the mind have no limit

I made mine about a year ago from plans in “Fixtures and Chucks for Woodturning” by Doc Green. His plans detailed how to lay out the arcs. It helps if your material is flat. Turns out mine had a slight bow to it that I didn’t catch so it wobbles a bit. Hoping to get together with a guy in our woodturning club and make a couple with better materials. The Longworth does come in handy when finishing bowl bottoms. Great job on yours.

-- Darell, Norman, Ok.

Darell—My first thought was to make mine out of phenolic-faced baltic birch … then I checked the prices of that stuff and decided to go with garden variety birch plywood! Mine seems to run pretty true … haven’t checked for run-out, but there’s no detectable wobble.

—Gerry

-- Gerry -- "I don't plan to ever really grow up ... I'm just going to learn how to act in public!"

Nice. I made one for a training shop in Cambodia, but still haven’t made one for me…

The quality of the plywood there was so bad, I faced both pieces with thin formica and it worked pretty well.

The bottle stoppers needed to be drilled out? How did you hold them and keep from having the drill grab the rubber during cutting?

I’m also a Packer fan, especially while waiting for the Seahawks develop into a great team.

-- Tim S, WA