Motorized Lego Mechanical Tongue

This is a lego shaft that goes in and out making it look like a dog panting.

For this project you are going to need a Lego servo motor, a lego battery box, gears, some regular Lego bricks that you can find in any Lego set and some Lego Technic bricks, some shafts and a little Lego sleeve.

First, make a wall using any of the two bases, just like so.

Then, using the gear, the long shaft and the little red piece make the inside mechanism on the wall from earlier.

Using the pins, connect the servo motor onto the shaft with the gear the attach it to the battery box.

Add some of the yellow 1x2 pieces to close more space.

Use all the leftover Lego bricks and the other base plate to make the other wall and roof.

Once you've plugged the servo motor in you can turn it on and your machine should work!. I am going to add a demonstration video.