Testing whether this prototype would work out when finished and how it sit on the bin. Would there be any spillage of rubbish like bottles, cans, food cartons etc. How large do we want to make the hole and what can fit through it and other factors we need to consider. In these photos, we are trying to figure out how high the box will be from the drop into the bin because there is an oval shape that goes downwards into the bin where the actual hole is only 120mm. We will cut the hole at 100mm which is roughly big enough for a big water bottle to fit through.

Last two pictures are the re-measurements of the hole (100mm) which is the actual size we will proceed with.