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Jumbo Jacks Set
Joe Greiner

Jumbo Jacks Set

My interpretation in Cherry of a popular toy, finished with EEE Ultrashine and paste wax, buffed on the lathe.

The jacks are about 6 1/2" x 6 1/2" x 6 1/2" (165mm x 165mm x 165mm) with partially-hollow stems. The stems are secured on the legs of 3-piece burrs of interlocked dowels, also of cherry.

The ball is about 6 1/4" (160mm), hollow, of 252 segments (253 if the central pole is included, or 254 if its ends are counted separately.

The entire set came from a log about 9.5" diameter x about 12" long, cut into squares (to assist alignment of the leg miters), and the remnants were further cut to make the dowels and the segments.

C&C welcome
very nice
 
Very cool, Joe. You might be interested in looking at the jetty for the harbor at Santa Cruz, CA. It is composed of a jumble of beefy three-pronged concrete "jacks."
 
Thank you to all.

Robert, I think they actually have four legs, and are called "quadripods" or "tetrapods," although those terms might apply to separate products. There are about 30 such designs used for shore protection, some proprietary some not.
 
There's a WIP sequence for the jacks at http://www.woodworkforums.com/f8/jumbo-jacks-set-129573/

Joe
 

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