This is just an addition to compost shredder by thymark. I've used it to shred apples for cider and some kind of top container/intake was required for this task.
This funnel is similar to other already existing on Thingiverse, but it's printable on standard 20x20cm print bed and uses already existing screws.
Shredder_intake-v1.0.stl | 193.6KB |