Thanks everyone for the nice replies. We are pretty happy with the results so far.
Originally Posted by Tony B
What is covering your chart? Lexan?
It's just a cheap 1/8" sheet of acryllic. Not sure if it's actually Lexan, or another type of plastic, but it was about $50 for the sheet from a hardware store. I cut it to size using a $4 cutter, and the corners were added using a hand-planer. Only took about 15 minutes to complete.
The original laminate top was sanded down, and a coat of black spray paint for plastic was applied. The chart was downloaded from the NOAA historical charts website, converted to grayscale, and printed at 36x24.
It's one of my favorite features in the cabin now. I highly recommend it!