Introduction: Disentanglement Puzzle

By m.youtube.com/user/boogiemonster
About: I like to design and build random things.

This is a Disentanglement puzzle, also known as a rope-and-ring or tavern puzzle. This classic example requires spatial reasoning, patience, and strategic maneuvering rather than force. These puzzles are often made of metal or wood and are popular in brain teaser sets. I would consider this an entry-level puzzle geared to younger children. The average adult should be able to solve it within a few minutes. See my Instructuables page for more complex designs.

Supplies

Materials:

  1. 3D Printer / Material
  2. String, Rope, Paracord

Tools:

  1. Scissors
  2. Tape Measure
  3. Lighter / Match

Step 1: Assembly

You will be building to this model. The parts consist of a base, ball, end caps, and cord.

Step 2: Part

Print the parts in this step. You will need 1 of each.

Attachments

Step 3: Paracord to Base

Feed the paracord into the base.

Step 4: Tie Knot

Tie a strong knot

Step 5: Clean Up / Position Knot

Cut off excess paracord. Pull the string to remove slack

Step 6: Add End Cap

Add the end cap with the flat top.

Step 7: Cut Paracord

Cut paracord to 17" long.

Step 8: Clean Up End

Melt the end of the paracord to allow it to slide through the ball easily.

Step 9: Insert Cord Into Ball

Feed the paracord through the ball as shown. .

Step 10: Tie Knot / Clean Up

Tie a tight knot and remove the excess paracord. Pull the cord tight.

Step 11: Add Ball Cap

Add cap with the sphere shape aligned with the ball.

Step 12: Finished Puzzle

See the video in the introduction for the assembly/solution. Please let me know if you have any questions.

Thanks for viewing!