what type screen do you suggest for separating my worms from the compost?
would a wire type cut into or damage do harm to the worms
1/4 inch hard ware mesh will be fine.. just get the type that is smoothed, run your hand over it it should feel good .. once it has a bit of humus and roots and dirt on it, worms go ham and play and love it right up if you let them get bored..
If you build a tower, you can have screen between each layer and the castings will fall to the bottom layer as the moistures fluctuate and worms move around.
If you build a screener, try put handles on it, maybe sand it down, and staple your screen to some 2x4 or 1x6 for a frame that matches a bin you want to collect over.
There are many ways to work with worms.. find one that works for you and your size farm and property!