Securing Servo Horn and Left Arm

Parts Required

1. 1x Servo Horn
2. 3x 2x6 Truss Screw
3. 2x 2x6 PANHEAD Screws "They're the smallest ones"
4. 1x 3D Printed Left Arm
5. 1x 3D Printed Arm Attachment Gear
6. 1x 3D Printed Middle Gear

STEPS



1. Take the servo horn and align the main hole with the pass through pivot hole on the left arm. Lock the servo horn into place using 2x 2x6 Panhead screws. Choose whichever holes line up best as the servo horns tend to change slightly from brand to brand.

1. Press the 3D Printed Arm attachment gear outward through the left arm hole from the inside of the main chassis.
2. While holding the gear position the left arm so that the sqaure indentation locks into the sqaure protrusion on the arm attachment gear. Then use 1x 2x6 Truss Screw to secure them together.

1. If using the middle gear for increased torque place the gear so that it meshes with both the arm N20 motor pinion gear and the arm attachment gear. You may have to move the arm to get acces to the hole but then use 2 2x6 Truss Screws to lock secure the middle gear in place, one screw will pass through the main chassis and the other through the arm motor restraint.

TIPS: Make sure to not overtighten the screws when it comes to moving parts as we want them tight enough that the parts stay in place but not tight enough to restrict movement of the parts. For example on the middle gear we want it to be able to spin freely without much resistance.