Here is what my FUSE1 Hopper looks like right now, Just a 150 Sieve mesh over the hopper opening held on with magnets.
Highlighted in Blue will be rods to keep the mesh rigid and the red highlight is where I plan to attach the future mechanism.
The idea is that the Hopper Lid can do the work of retaining the mesh, and moving it out of the way when filling the Hopper.
The idea may never come to fruition as the current method if sufficient.