I have been flying a Slow Stick to practice landings and to build up my flying skills while keeping costs low. My last change was to outfit it with a V-tail but now I need to begin upgrading my aileron skills. I decided to build a wing using Dollar Tree foam board but with internal reinforcements. This servo mount with fairings is a result of that design episode.
The mount was originally designed to wrap completely around a 9G servo and attach with 2 2mm screws. The mount had a lower flange to extend from the outer skin of the foam board to the inner skin to allow plenty of bonding area to the foam with Gorilla Glue. But, when I went to insert the servo it wouldn’t fit. The servo leads would go through the opening and when I tried to tip the servo it was too long to fit. I removed enough material to allow the servo to tip through the opening which removed the AFT mounting hole. I added a pair of holes on each side assuming I would grow a small strap to bridge across the servo ear. Looking at the finished assembly with the servo mounted in the mounting plate made me realize I could fair the servo If I created a forward and aft fairing detail.
The details were printed in ABS and the fasteners holes tapped for a 2mm screw (button head). After assembling the servo, mount and 2 fairings I am still amazed as to how small it is. Not to mention the difficulty of handling 2mm screws with my fat fingers. The 2 diagonal grooves in the forward fairing are a guide used when installing the control horn to the servo. The extreme angle shows the limiting angle to achieve the greatest aileron differential.
FB_Wing_Servo_Fairing_AFT.stl | 203.3KB | |
FB_Wing_Servo_Fairing_FWD_rev_C.stl | 253.5KB | |
FB_Wing_Servo_Mount.stl | 471.1KB | |
FB_Wing_Servo_Mount_rev_A.stl | 297.6KB |