This is the Print in place Popupwallet I designed, this wallet pops up the credit cards that you place into it (can hold up to 7cards). pops them up into a staircase design. 

The last two pictures are places where the mechanism might be stuck after printing. just insert a thin object and gently pry loose the mechanism and it will perfectly fine afterwards.

print supports. no bed adhesion settings, wall thickness 0.8, 3 walls, 15% infill, 0.2 layer height