I just went ahead and made an example by eye-balling your first screen shot.
I just drew a single segment and made it a component. The edge line segments are hidden.
Then I copied it to make an array.
If you use the CAD file, you’ll need to create a large face to put the lines on. An easy way to create all of the openings is to select the face you want to keep by double clicking with the Select tool. This will select the faces and the bounding edges. Hit Edit>Copy to copy it to the clipboard. Then delete all of the geometry of the grid. Next, hit Edit>Paste in Place.
