Use 8mm Diameter x 3mm Height disk magnet. Thickness of acrylic door will regulate magnet pull- thicker acrylic will have less magnetic pull to keep the door closed. If there is no gap between magnets opening door will be a nightmare. So install with acrylic door between magnets. See image. I rounded the corners on the door side- the photo shows the original design. Corner 1 uses 2mm wood screw with 4mm head. Corner 2 uses m3 screws with locking nut
The author marked this model as their own original creation.