3D LabPrint Piper J-3 Cub User Manual page 20

6. Servo installation
Cut the servo holder ears on aileron servos. Install the prepared servos to wing servo bays.
Use a 1mm steel wire with Z bends as a linkage between the servos and aileron control horns.
Elevator servo will be fixed by servo holder or directly glued in the fuselage.
See video guide Piper J-3 Cub servo assembly
you will need: 4x
23x12x26 mm / 0.74x0.42x0.78 inches
Servo cable extension
Snap knife,
7. Motor & ESC & battery holder
Fix the battery by velcro tape and mount it in the front of the fuselage, find the perfect
balance and CG position by moving it. Mount the motor using 4x M3 screws and nuts to the
printed universal motor holder 16 x 19mm. For long motors you can flip the holder to the
front (as at picture). Glue universal motor mount with motor into the fuselage in right
position.
See video guide motor setup
you will need:
4x M3x3mm screws
LW planes setup (230W)
Motor: any 2830 1000KV, opt1,
ESC: any 20A/3s, opt1, opt2,
Propeller: two blade GWS 8 x 4 (ugly orange) or
Battery: 1300mAh/3s, opt1, opt2,
Batt. connector: XT60
printed PET mount 16 x 19 mm
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HXT900 or any similar sized servos
Z pliers
opt2 or similar
opt3 or similar
opt3
or Gold Conn
opt1 or any 8/4 CCW
or similar
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