MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
You need to set the threaded screw below (-1mm) the acrylic hole so that it cannot touch the frame. They need to be free of movement.
You also don't want to add more mass to the top of the threaded screw. That will only cause more unwanted forces on the top portion of the threaded screws.