Hatch for chickens

thingiverse

THIS IS JUST BAD DESIGN. I will do another version. You may find use for in other purposes and that is why I leave it here. This design is for printers capable to print 210 x 210 printing objects. Two different versions. Idea is to use recycled candy box lids 180 x 180 in the middle (transparent acrylic) and glue it to this mechanism. This way chickens can see inside/outside when they are going through the hatch.