LEGO Crazy Swing Arm Action Mechanism

This is what we're going to build today.

Pieces we're going to use today:

Let's build!

LEGO rack and pinion gears 2 - Mechanisms

Some of my favorite gears to play with in LEGO is rack and pinion gears. I guess I like watching the gears move from side to side.

This is what we're building today.

The pieces I'm going to use today:

I didn't have the pieces the book used, so I tried to use replacement pieces.

Pictured above are red and yellow flat pieces for the rack and pinion gears, 

but they didn't work out at the end. So, later on, 

you'll see orange pieces to make this mechanism work. 

Pictured here is size 5 gray stick piece. What you need is size 3 gray stick piece.

I thought I might have fun with a mini figure since my daughter enjoys collecting them so much.

These are the replacement pieces for the red and yellow piece pictured in the first photo.

The red and yellow pieces are pictured in the background.

LEGO Vehicles - Differential Gears 1 (Contraptions)

This is what we're building today.

Bottom view.

List of Parts we're using today:

Building steps:

I used this piece to make modifications - adding wheels to the back of the vehicle.

Bottom view.

This one was really fun to build, and I think I'll combine this one with one of the mechanism build to create a new contraption. I have to make modifications for the power function placement and add support structures to connect the two. Hopefully, I'll do that soon.

Have a great day!

Alternating Swinging Arms (Mechanisms) - Page 129, Build #170

Did I mention I like moving things? I especially like watching the gears move. So, this one was just perfect for today.

Parts we're going to use today:

Video for Swinging Arms:

LEGO Swing Arm Video