tweak oiling docs

* Insert a [brass nut][M3 brass nut]{qty:{{var_n_actuators, default:3}}, cat:mech} into the x actuator through the hole in the front of the [main body][prepared main body](fromstep){qty:1, cat:subassembly}

* Looking through the hole you should see the side of the nut. If it is tilted so you can see the top, tap the microscope until it sits flat

## Assemble and oil the lead screw {pagestep}

## Add washers and oil the lead screw {pagestep}

![washer direction](diagrams/washer-direction.png)

![add washers to leadscrew](renders/actuator_assembly_washers{{var_actuators, default:}}.png)

* Line up two [washers][M3 stainless steel washers]{qty:{{var_n_washers, default:6}}, cat:mech} so that the slightly curved sides are facing each other

* Take the {{includetext: "thumbwheel", if: var_actuators is _manual}}{{includetext: "gear", if: var_actuators is not _manual }} with the hex bolt mounted into it, and slip the two washers onto the thread

* Add one drop of [light oil]{qty:{{var_n_actuators, default:3}} drops, cat:consumable, Note: "Don't skip this or you will damage the screws"} onto the screw thread. 

* The oil should be barely visible in the screw threads. Wipe of any excess oil with a cloth 

## Attach the {{includetext: "thumbwheel", if: var_actuators is _manual}}{{includetext: "gear", if: var_actuators is not _manual }}{pagestep}

![Gear attachment exploded](renders/actuator_assembly_gear{{var_body, default:}}.png)

![Gear attachment](renders/actuator_assembly_gear2{{var_body, default:}}.png)

* Push the oiled bolt through the hole at the top of the x actuator until it reaches the nut

* Take the oiled bolt with two washers and push the bolt through the hole at the top of the x actuator until it reaches the nut

* Screw the bolt into the nut until the nut is completely lifted up. (If the nut turns, hold it in place with the [nut tool](fromstep){qty:1, cat:printedtool})