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: Only top wheel       infill: 20%+             (you need to print two spacers)

Assembly:

1)First, place the bottom wheel onto the axel with the catch facing upwards, this should spin freely

2)Above the wheel put one of the spacers above the wheel, this should have a friction fit but if not you can either use a shim or glue it in place

3)Next, place the top wheel above the spacer making sure it is the right way up (with the slot facing towards you, the catch should be on the right side of the wheel) and can rotate

4)cap off the stack with the 2nd spacer which should also be a tight fit and hold everything in place

5)on opposing sides of the box, there should be a groove going about 3/4 of the way through the wall and a slot going all the way through. Maneuver the disks so that their slots align with the groove in the wall (due to the catches on the wheel this might be a bit confusing)

6)Lastly, put the lid on so that the prong on it slides through the groove in the wall and slots in the wheels until it is flush and spin it to scramble the box (you may have to sand down the bumps on the prong so they don't interfere with the wheels)

Solution:

Hint: It is based on a rotary safe lock and the slot is the marker

Hint: The indentations on the top relate to the combination

Solution:

1)The 3 markings refer to 1=1, 2=11 and 3=111

2)After fully rotating the top twice clockwise carry on clockwise until the No1 marking lines up with the slot

3)Making sure not to agitate the box too much rotate it anticlockwise until the No2 marking lines up with the slot

4)lastly rotate the lid clockwise so that the No3 marking lines up with the slot and gently pull the lid up and out (for me this works 1/4 of the time as sometimes the wheels move unpredictably but you can widen the slits in the wheels to make it more forgiving)