![Image](https://forums.factorio.com/images/ext/8eeaae6ce87a1b737df79f09adcc66e5.png)
It would be great to have an item here (even just made from wood) to block the iron plates. The conveyor belt would continue so the copper moves on.
And yes I could just use a smart inserter:
![Image](https://forums.factorio.com/images/ext/56a1b0a6d8ad03323dd37b73ee6a7532.png)
But that wastes power, and might not always drop the item onto the correct side of the belt.