yesterday I couldn't think of any thing to build after a while I came up with a boom cannon from the game boom beach.

Step 1: The Barrel

Step 2: Build the Shield

Step 3: Connect the Barrel to the Shield

Step 4: Make the Back of It

Step 5: Build This

Step 6: Connect It to the Barrel and Shield

Step 7: Build the Stand

Step 8: Connect the Stand

Step 9: Add These Pieces on Both Sides

if you build this post a picture in the comments.

<p>I just got my boom cannon, HQ 12. Nice job, looks realistic!</p>
<p>Looks good!</p>
<p>Good job I like it!</p>
<p>Not bad, I think you have build better, but good job all the same. :)</p>
<p>in step 8 you connect the stand to the yellow rod inside </p>

About This Instructable




More by matthew9876 :Phantom a knex sniper rifle  Knex rubber band shot gun  knex bow 
Add instructable to: