Just a little work on the Dynon EFIS mounting drawer tonight. This is pretty straight forward. The drawer has a lip that you can either rivet of screw to the back of the panel. I will be riveting it so I drilled 5 holes on the top and bottom and 3 on the sides (#30 -3 rivet). If your EFIS panel opening is perfectly level with the bottom of the panel and just a bit larger than the EFIS, as mine is, it is easy to get the drawer in the correct linement before drilling the holes. I finished up by countersinking the holes so they will not show after painting or hit the lip of the EFIS on the front of the Panel.
