Marked inside the canopy "top" flange - had to reduce width to 20mm to get even flange all around frame. Will cut later.
Made up 6 blocks to hold frame 3mm inboard of sides of fuse. Mounted the blocks and sat the frame inside the blocks. With the blocks holding the frame in place I can now start trimming the "bottom" flange of the frame until it fits nicely on the fuse lip under the frame.
