This box is part of a collection of 6 3*3*3cm puzzle boxes that all have the same theme of lids being removed from boxes through unique and interesting means. They are ranked from 1-6 based on their difficulty even though putting these boxes together and seeing the inside mechanism can remove some of the mystery, they can still be interesting to solve and play with as well as give to your friends to try solve.Video

Printing settings:

supports: none       infill: 15%+

Assembly:

1)Test fit the lid and locking bar with the insert sandwiched between them making sure the insert can spin freely

2)Glue the lid and locking bar together with the insert sandwiched between them being careful not to glue the insert in place

3)Finally, with the insert at a 45 angle to the lid slide it into the case before rotating it square and slotting it into the case

Solution:

1)Pull the lid up until you can spin the lid

2)Gently pull up on the lid as you turn it until it comes free