Final Prep (Dimple, Countersink, and Shape)
8/19/23 - 1.1h
The aileron trim actuation assembly is mounted to the inboard access panel on the right wing. The location on the panel is specified in the plans, and from there it is a matter of match drilling and final drilling the holes from the trim assembly to the access panel.

After the holes are drilled, the access panel and trim assembly need to be dimpled to accept flush screws through the access panel into nut plates on the trim assembly. The instructions are abbreviated at this point in the build (“Dimple the holes in the bottom flanges of the Aileron Trim Actuation Assembly flush on the bottom side.”), so you need to recognize that the center hole for the nut plates gets dimpled first followed by the rivet holes with a reduced diameter dimple die. You also need to dimple the nut plates.
[#30 Drill, #19 Drill, Hole and Edge Deburring Tools, 22” C-Frame with #8 Screw and #40 Reduced Diameter Dimple Dies]

Assemble
8/21/23 - 0.5h
8/22/23 - 0.3h
The assembly process starts by riveting the nut plates to the aileron trim actuation assembly. The assembly can be clamped to the bench with good access to the nut plate rivets. After the nut plates are in place, the wing access panel can be attached to the trim assembly with #8 flush screws, and then the entire assembly can be test fit into the wing skin to insure no interference between the skin and the trim assembly. If there is interference, the trim assembly can be removed from the access plate and filed as needed to fit. Fortunately, I didn't see any fit issues with mine.

The other step in this section is to center the aileron trim arm to the neutral position. I drew a centerline on the trim arm, and then attached a battery to the white and gray servo wires to move the arm to a 90-degree angle with the trim assembly housing. That will be my neutral position for the aileron trim.
[Rivet Squeezer, Flat Squeezer Set, Cleco Clamp]