Disentanglement Puzzle


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:
- 3D Printer / Material
- String, Rope, Paracord
Tools:
- Scissors
- Tape Measure
- Lighter / Match
Assembly

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

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

Feed the paracord into the base.
Tie Knot

Tie a strong knot
Clean Up / Position Knot

Cut off excess paracord. Pull the string to remove slack
Add End Cap

Add the end cap with the flat top.
Cut Paracord


Cut paracord to 17" long.
Clean Up End


Melt the end of the paracord to allow it to slide through the ball easily.
Insert Cord Into Ball

Feed the paracord through the ball as shown. .
Tie Knot / Clean Up

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

Add cap with the sphere shape aligned with the ball.
Finished Puzzle



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