Slic3r Mesh Filter

User pyror made a very nice mesh filter generator in OpenSCAD ( https://www.thingiverse.com/thing:1682779 )
It does have a problem of taking a couple of minutes to render the file though.

I have thought up of a way of generating the file much faster, in just a couple seconds, in the Slic3r software using the "Rectilinear" infill with no top and bottom shell layers.

1. Design two solid objects, one for the frame and one to represent the mesh filter. They can be any shape you want, I've included example stl files and the F360 project. They should have a 0.01mm gap between them to keep the shells separate.

2. Drag in the two files "mesh grid.stl" and "mesh frame.stl" into Slic3r. As the software has no "Undo" button, avoid moving them. If you accidentally misalign them, just delete them and import them again.

3. Right click on "mesh grid.stl" and then "Settings"

4. Click on the plus sign in the middle of the window and select "Infill" > "Fill pattern" > "Rectilinear"
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