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“Assemble the main shoulder joint and prepare two connective shafts to join the shoulder to the left arm.”




Materials: The two Shaft for Left Arm are metal, but the shoulder pieces are plastic.


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Fit Components for the Left Shoulder and Arm

Step 1

Fit the Shoulder Part to the Shoulder Joint, aligning the outside recesses as shown:

Step 2

Secure these parts together from inside the joint with two (2) KB 2×6 mm screws, as shown:

Steps 3-4

Fit the larger recess of a Rubber Washer over the small end of the shorter Shaft for Left Arm (73-3) and secure it in place with one (1) PWM 2×5 mm screw, as shown:

Steps 5-6

Repeat the previous step with the other Rubber Washer and the longer Shaft for Left Arm (73-4) and one (1) more PWM 2×5 mm screw:


We are slowly assembling the pieces to put together our left arm. This all feels very familiar!

Next Up

 Issue 74 – Left Arm Part, Cap/Shaft for Arm Part

2 thoughts on “ISSUE 73”

    1. They are the same size, but one side of each washer has a recessed cutout. That is the side that fits against the end of the shafts.

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