• 1
    Step 1

    Get the linear actuator and remove the case from the gearbox by taking out the three screws.

    Get a hacksaw, file or CNC router to take out a slit about 3mm high right next to the last gear.

  • 2
    Step 2

    Print the small gear with the tabs. Remove the grease from the last gear in the gearbox to get to the two slots on each side of the axle. Place the printed gear on the axle and press the tabs into the slots. Optionally use some epoxy/loctite to secure it. Replace the grease.

  • 3
    Step 3

    Print out the parts for the case and print/lasercut the remaining gears.