4M MOTORISED BARRIER GATE 3447

MOTORISED BARRIER GATE 3447
Build the mechanical security bar to prevent intruders from entering your room. Build a smart science engineering gadget!
How It Works
The motor has a worm screw that rotates a shaft to raise or lower arms A and B. The metal on the card completes the circuit that allows the motor to operate when the top button is pressed. The linkage mechanism raises the outer end of the bar, while the inner end lowers. Accordingly, the outer end of the bar is lowered while the inner end is raised.

CONTENTS
Section A: Arm A, Section B: Arm B, Section C: Arm C, Section D: Arm D, Section E: Main Body, Section F: Motor Cover, Section G: Card Case, Section H: Key Card, Section I: Card template (from box flaps), Section I: Connector base, Section K: Connector cover, Section L: Motor, Section M: Battery cover, Section N: Connector, Section X: Metal plate, Section O: Double-sided adhesive tape, Section P: Terminal caps, Section P: Small connector cover, Section C: Hexagon plate, Section T: Black wire, Section Y: Flat head screws, Section F: Screws, and Section X: Stickers.
Contains instructions in Greek.