Why not use an acrylic piano hinge and the special acrylic cement that will chemically weld the parts together? Quick and easy! Drilling acrylic sheet can put stress cracks in the plastic, and will lead to premature failure.
Acrylic Sheet Cementing & Fastening | Capillary Cementing to Ultrasonic Welding
Peter- Marine Insurance Guru & tuna fishing addict!
1989 52' PT Overseas yachtfisher