Before Assembly

 Please to read "How to work with 3D printed parts" and to clean and trim parts.

Gun Recoil

Remove gun and mantlet from Tank

 Get  A7, A8 and MA6

Bolt A8 to A7 with MA6

smooth inner surface of A7 for barrel movement.

Drill screw hole on A6 with 1.6mm drill bit

Set recoil servo direction to Normal, plug servo to TK board to set right position of servo output shaft, then to fit recoil gear to servo, use black screw in servo bag.

Fit  servo to A6, use Tapping screw in servo bag

To view of recoil servo assembly, Notice the angle of gear

Bottom view

 Fit recoil servo assembly with MA2

Insert A1 ( also smooth contact surface between A7 and A1 so that they can move smmothly)

Bolt A3 to A1 with MA3

Fit A9 with MA3

Fit A13 and A14 to A7 with MA3

Put tunnion to turret lower hull, align it as picture

Use 2.6mm drill to make hole

On both side.

Then use 3mm drill to expand hold to 3mm

Insert MA6 to MA7

Bolt A13 and A14

Remove screw.

Elevation Servo

Fit A10 to Servo, use the black screw in servo bag

Insert MA4 to A12

Install servo to servo stand with MA4 screw, not too tight, the slot on A12 allows servo can moves horizontal for gear gap adjustment.

 Put servo assembly on turret lower floor

 Use 2.6mm drill to make hole for MA6

Use 3mm to expand hole to 3mm, the bolt servo assembly ti turret lower floor.

Push servo to minimize gap then to fasten servo.

 Final Assembly

 Insert gun barrel

 Push it to the tip of A1, A1 is designed to fit gun barrel closely, no glue is needed.

 Insert 2mm plastic beam (from Tamiya) for declaration, 3mm round beam in other side