Lego Catipult

These are the supplies that you will need for this build.
Supplies
5 4x2 bricks
1 trailer piece
3 3x2 bricks
10 2x2 bricks
2 Technic joints
1 4x2 with pins on the sides
Start Building Your Base

Take 4 2x2s and stack them as shown.
Building Base

Repeat step one on top of what you already have.
Attach Hinge 1

Take one of the Technic hinges and put it on the top as shown.
Attach Hinge 2

Repeat the previous step on pillar 2.
Attach Hinge Joiner

Take the 2x4 with pins and place it in as shown.
Build Attaching Segment

Take 2 2x4s and place them on top of the hinge bar.
Build Projectile Holder

Set aside what you just built and get your trailer piece out.
Build Projectile Holder

Take some of the remaining pieces that you have and make a holder. My design is above.
Combine the Two

Combine the two parts like so.
Finish!

You are now finished with this build!