I created a removable electronics platform using 45mm parts and nylon M3 standoffs. Like the 3D printed versions, it makes it easier to access the components, if needed. The Pixhawk is mounted slightly forward to allow space for the servo and ESC connectors.
Note that the bottom air exit of the frame is not blocked. I only needed to drill four holes in the frame for the nylon standoffs. There is plenty of space between the nylon standoffs and the inner side walls to run cables.
