Lots of cutting and drilling. Cut panel holes for all the avionics and instrumentation. Good thing I'm using this sheet of metal for practice. Some of my openings are pretty rough. I will do better on the final panel sheet. I may make a few changes on the final layout, but for the most part I like what I'm seeing and with the components positioned I can get a feel for how it will all work. Put a few holes in the panel to position the map box on the back of the panel. It is going to be tough to find a way to lock it in position without being attached to the panel. I may have to do some rethinking on that.