Cutting the panel

[Delta Whisky]

I laid mine out using Draftsight (2D CAD, free until the end of the year), printed it out full size (Staples), glued it on the blank panel and then cut the round holes with either a fly cutter or a rotabroach and the square hole with a sabre saw/file. You can see in the pictures a change or two I had to make between the first CAD version and the final one.