Bottle locker puzzle

I designed a copy of this famous bottle puzzle. I don't know the original creator of this puzzle but lot of brands are selling it made of wood.

Very fun for challenging your thirsty friends !

Printing instructions :
- Print all the parts (all easy no support)
- Print the “Big Ball half” part 2 times

Assembling instructions :
You will need all the printed parts, two pieces of 5mm nylon rope (83cm and 32cm), a lighter to burn the rope ends and some glue.

Assembling is pretty easy. 

To mount and solve the puzzle there is a lot of video on Youtube. Here is one :
 

Hope you will enjoy this