Find out how to Make a Lego Catapult with Bricks You Already Have



This LEGO catapult design makes use of frequent LEGO items that you’ve got already or may substitute the same block. Children of all ages can use the straightforward LEGO catapult concept and make working catapults at dwelling or within the classroom. This straightforward STEM challenge is playful studying at its finest!

Let’s make a LEGO catapult!

Home made Catapult DEsign

Final week my household visited a Genghis Khan Exhibit and noticed an actual life dimension trebuchet that they may put their arms on (and shoot some ping pong balls throughout the museum).  At dwelling, they’ve been all about creating catapults out of every little thing.

Associated: 15 extra concepts how to make a catapult

This LEGO catapult design was created by my 10 yr previous utilizing simply the bricks we have already got.

The boys personal one of many Lego Citadel units that features a catapult. Lots of the items used had been from that set.  He has modified that somewhat to extend projectile distance.  

As with all issues Lego, modify these directions to make use of items that you just may need at dwelling!

Find out how to Make a Lego Catapult

Step 1  

Assemble the bottom.   The bottom platform and the catapult basis consist of those items:

Lego catapult building step 1
These are the items we used for the catapult base

Step 2  

Add Lego blocks that enable for arm motion.  

The bottom constructed from items pictured above are on the left. The items used for the arm motion base are pictured on the best:

Lego catapult building step 2
Pictured on proper are the items used to make the catapult arm transfer

Step 3

The bottom is now full.   

You possibly can see that the 2 small 2 x 1 stud bricks in between the gold caps are on a rod and could be rotated 360 levels at this level.   That is the place the shifting arm will connect:

Lego catapult building step 3
That is the finished LEGO catapult base

Step 4

Construct the catapult’s shifting arm with the items proven right here or comparable:

Lego catapult building step 4
Now it’s time to create the catapult’s swinging arm

Step 5

End the arm and fasten it to the two x 1 bricks talked about above:

Lego catapult building step 5
That is what the LEGO catapult arm appears to be like like from the facet

Step 6

Connect a rubber band.

Finished Lego catapult
The rubber band wraps across the facet wheeled posts and the underside 4 publish circle

Step 7

Launch projectiles throughout the lounge.

lego catapult final image
That is what it appeared like after we had been carried out.

Catapult vs. Trebuchet

The exhibit was calling this sort of catapult a trebuchet.

We had been questioning what the distinction between the 2 weapons had been and after somewhat web search which included Wikipedia, that is what I perceive to be true:

  • Catapult:   A catapult is a mechanical gadget used to hurl objects.   It’s a normal time period and there are numerous kinds of catapults.
  • Trebuchet:   A trebuchet is a kind of catapult.   The early fashions had been known as traction trebuchets and used manpower and ropes to launch a projectile.   Later fashions used pulleys and counterweights and improved the accuracy of goal considerably.

The kind of catapult we simply constructed out of Legos may very well be described as a traction trebuchet should you imagined the rubber band to be males pulling on ropes.

In search of extra trebuchet and catapult constructing concepts? 


Extra LEGO Enjoyable from Children Actions Weblog

How did your lego catapult prove?  How far are you able to launch projectiles throughout the room?



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