Instructables
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Picture of the centrifugal puzzle

Do you want to wow your friends,
Do you like working with wood,
Do you enjoy brain teasers,

if so read on...

Everyone likes a good brain  teaser every once in a wile. A puzzle that can frustrate the most powerful minds, yet has simple solution. The centrifugal puzzle can do that!

 
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Step 1: Things you will need

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You will need 2, 2cm x 3.5cm blocks of wood around 30cm long,
2 small dowels,
2 drill bits, one for the screw and one slightly larger than the dowel rod,
A drill,
A scroll saw,
A scroll saw blade.

Step 2: Measuring

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Using a pencil and ruler find the half way mark .Measure 1cm out from the line on each side. Make 2, 2cm lines up from the line you just drew. Now join the two lines so you have a 2cm x 2cm square. Do the same on the other.

Step 3: Cutting

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Using the scroll saw cut your marks. Your two pieces of wood should fit flush with each other .Cut one piece in half (see picture) this part does net need to be exact.

Step 4: Drilling

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Drill 2 holes slightly longer than you dowels in the wood. put the dowels in then glue your pieces back together. drill a hole about 3mm larger than you dowel in the other piece of wood (see picture 2).

Step 5: Paint it

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Use semi gloss spray paint and spray around 8 inches away from project.

Step 6: You are finished

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now put the two pieces together and shake it a couple of times. Now try to take the two pieces apart. You cant I know, I will give you a hint its in its name. still cant figure it out scroll down.









Take the puzzle and give it a good spin on a flat surface now pop the piece off and go fool your friends.
Rob O3 years ago
I think there is a flaw in this cut and glue back together approach. You cut one of the pieces of the puzzle in half and then glue together. Doesnt that make the puzzle structurally weaker?

In the other, better, previous ible you use square dowels and then assemble them together. It gives you a much greater area to glue together, that won;t get torqued like this approach.