J1 Assembly

Add Heat-Set Inserts to Base J1

Base J1 needs 2 M2 heat-set inserts for mounting the home switch.

J1 base heat-set CAD — CAD image of where heat-set inserts go

j1 base heat-set inserts — J1 base heat-set inserts

Mount Base J1 on Plate J0

Use 4 M4x10 screws. Use thread locker on the screws.

J1 base mounted to plate j0 CAD — CAD image of J1 base on J0 plate

j1 base on j0 plate — J1 base on J0 plate

Mount Motor J1 to Base J1

Use 4 M3x8 button head screws. Apply threadlocker to the screws.

J1 base and motor j1 CAD — CAD image of motor J1 mounted to J1 base

Attach the Hub to Motor J1

Point the raised feature of the hub (HUB-545616) toward the motor, space the hub from the J1 base using the 3mm spacer.

hub j1 mounted to motor j1 CAD — CAD image of hub mounted to motor

Add Heat-Set Inserts to Plate J1

Plate J1 requires 6 M4 heat-set inserts. 4 of these go in the bottom of the plate for the stabilization set screws. 2 go in the top to mount the humerus to plate J1.

holes for stabilization set screws — These 4 holes need heat-set inserts pressed in from the bottom

holes for mounting J1 base — These 2 holes need heat-set inserts pressed in from the top

j1 plate heat-set inserts — J1 plate with heat-set inserts

Add Set Screws and Nuts to Plate J1

These set screws stabilize plate J1 against the thrust bearing. The nuts must be in place to lock the position of the set screws in a later step. The nuts go on the bottom of plate J1.

j1 plate with set screws — J1 plate with set screws

Place Thrust Bearing in Base J1

The 40mm ID 60mm OD needle roller thrust bearing goes in J1 base (THRUST-40-60).

thrust bearing in J1 base CAD — CAD image of thrust bearing in J1 base

Attach Plate J1 to the Hub

Use #6x0.5" button head screws to attach plate J1 to the hub. Apply thread locker to the screws. Make sure the set screws do not touch the thrust bearing yet.

plate j1 mounted to the hub — CAD image of plate J1 attached to the hub

Tighten Plate J1 Set Screws

Lightly tighten the set screws in plate J1 to touch the thrust bearing. Overtightening will bend plate J1. Once the set screws are touching the thrust bearing, tighten the nuts against plate J1 to lock the set screws in place.

j1 plate with tightened set screws — J1 plate with set screws tightened to touch thrust bearing

Mount a Home Switch to Base J1

Use M2x5 screws to mount home switch variation A to J1 base (PCBA-HOME-A-1.0).

J0 Assembly J2 Assembly