Captive Cube "Puzzle"

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Project by KnotCurser posted 01-01-2010 05:32 PM 3826 views 3 times favorited 12 comments Add to Favorites Watch

I suppose you could call this a puzzle, although it’s a puzzle with no solution. I guess one could be puzzled about how it was done….........

I saw this project in a woodworking book, although with a slightly different design, and then again in the projects section here lately (credit goes to Dudley) and decided to give it a shot one lazy afternoon.

The only difficult step is getting your first center mark just perfect – after that it’s all a matter very picky drilling and then a LOT of sanding to give it that finished look.

The cube is walnut and then just soaked in lemon oil for a few minutes for a really dark luster.

-- Robert Rhoades WoodWorks / Email: /

12 comments so far

View Garyb6's profile


306 posts in 3629 days

#1 posted 01-01-2010 05:49 PM

Nice one!

-- Garyb6, “True simplicity does not reveal the tremendous effort it requires.” - Somerset Maugham

View richgreer's profile


4541 posts in 3073 days

#2 posted 01-01-2010 05:54 PM

Well done. There is another version of this puzzle that I have done a few times as gifts. It has a steel ball in the middle and holes that are a little smaller than the diameter of the ball. The trick – - Use a soft wood (poplar works great) and soak the wood overnight in water. The wood will expand just enough to get the steel ball in. After it dries you have a clever puzzle that no one can solve.

-- Rich, Cedar Rapids, IA - I'm a woodworker. I don't create beauty, I reveal it.

View toyguy's profile


1651 posts in 3836 days

#3 posted 01-01-2010 06:14 PM

Golf balls are also used sometimes. Makes a great gift to your golfing buddies.

-- Brian, Ontario Canada,

View huff's profile


2828 posts in 3284 days

#4 posted 01-01-2010 06:18 PM

Fun project and it does make you think! lol

-- John @

View a1Jim's profile


117091 posts in 3576 days

#5 posted 01-01-2010 06:59 PM

good job Bob
Welcome to Ljs

-- wood crafting & woodworking classes

View Monty Queen's profile

Monty Queen

1593 posts in 3251 days

#6 posted 01-01-2010 07:11 PM

Yes i seen a video on lumber jocks a week ago, showing a guyng how he made it, that was cool. Great job on yours.

-- Monty Q, Columbia, South Carolina.

View tt1106's profile


134 posts in 3067 days

#7 posted 01-01-2010 07:24 PM

This is on my list for next year. I really like the golf ball idea too.

-- -Todd

View Grumpy's profile


23928 posts in 3850 days

#8 posted 01-01-2010 11:54 PM

Good one KnotCurser

-- Grumpy - "Always look on the bright side of life"- Monty Python

View scrappy's profile


3507 posts in 3429 days

#9 posted 01-02-2010 06:07 AM

Great job. Have been seeing these here lately also and want to try one. Might have to try a golf ball one for my neighbor.

Keep it up.


-- Scrap Wood's the best...the projects are smaller, and so is the mess!

View hunter71's profile


3178 posts in 3185 days

#10 posted 01-02-2010 02:03 PM

I just did some from an earlier post. You are right. Set up is everything. Then you can pop them out. Lots of fun to sit around and watch people. I have coffee with some old timers and sat one on the table last week. Great conversation piece.

-- A childs smile is payment enough.

View Bob Kollman's profile

Bob Kollman

1798 posts in 3190 days

#11 posted 01-02-2010 06:00 PM

Very cool piece for the desk.

-- Bob Kenosha Wi.

View pan's profile


24 posts in 3048 days

#12 posted 01-21-2010 06:19 PM

very nice lioke it alot

-- "everything has a soul"

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