Introduction: Build a Trebuchet in Five Minutes

Have you ever wanted build your own trebuchet and fling cows onto unsuspecting englishmen? Well now you can (assuming that your cows are the size of marbles). Here is how.

First off, you will need a few things:

5 rulers with multiple holes in both ends
A large nail or bolt (must fit through holes in rulers)
Two very small nails
Some tape (duct tape works well)
Some string
A heavy keychain or something else which can work as a counterweight
A brick or block of wood.

Alright, lets get started!


Step 1: Attach Rulers to Brick

Putting the brick or block of wood on its side (drawings do not show this), tape the four rulers to the brick as shown, so that the holes line up, in order to build the support structure. Figure out what angle the rulers should be calabrating them so that the holes on the rulers overlap, and you can line the third hole of your remaining ruler up with these holes while its bottom hole is slightly above the brick. Once its lined up right, tape the four rulers in place.

Step 2: Creating the Arm

Put a nail through the hole in the five rulers as shown. Like I said, the hole should be just above the brick.

Step 3: Create Release Mechanisms

Tape the two little nails to the brick as shown.

Step 4: Make Sling

Make sling out of tape and string as shown. Test it out by seeing if you can throw a marble with it.

Step 5: Tie Sling to Ruler

Tie the loose end of the sling to the ruler as shown.

Step 6: Create Loop

Create a loop of string going through the hole in the ruler. This loop should reach down to the nail and be able to hold the ruler in place.

Step 7: Add Counter Weight

Attach the counterweight to the hole on the arm. Should be as heavy as possibe, without messing up trebuchet.

Step 8: Cock and Fire!

Hook lose end of sling to nail on ruler. Stuff sling under trebuchet, and relese string to fire.

Comments

author
JustinC268 made it!(author)2017-02-13

i got stumped on step 3 where does the nails go the picture doesnt help at all

author
leytbrow made it!(author)2016-03-21

hi

author
ZachT29 made it!(author)2017-01-17

hi

author
leytbrow made it!(author)2016-03-21

hgdhjggfghhgghghgghghghghgh

author
madd+sluts made it!(author)2008-08-19

this is friggen awesome

author
ZachT29 made it!(author)2017-01-17

yeah its lit xdd

author
spirit_tomb_ made it!(author)2016-03-21

hi

author
spirit_tomb_ made it!(author)2016-03-21

hi

author
spirit_tomb_ made it!(author)2016-03-21

bruh

author
leytbrow made it!(author)2016-03-21

supid

author
spirit_tomb_ made it!(author)2016-03-21

hi

author
spirit_tomb_ made it!(author)2016-03-21

its so dumb..... GOOD GOOD!

author
spirit_tomb_ made it!(author)2016-03-21

hi

author
leytbrow made it!(author)2016-03-21

jajddshjdjfhhfdgdhfjhgkfjhdfdgfjhdih

author
zerotorque made it!(author)2015-04-28

asdfghjkl This is beautiful. Do you think drilling holes in a solid ruler would amount to the same thing? Haha.

author
zerotorque made it!(author)2015-04-28

Also thinking I will skip the taping and instead drill a hole through the wood brick so I can stick an axel + wheels on this beautiful creation. :D

author
grace.golisch.9 made it!(author)2014-10-28

just curious, how well does this work?

author
tozi-99 made it!(author)2012-07-30

how do u put the nails on

author
Mattrox made it!(author)2010-11-15

How did you do your drawings?

author
mashedpotato13 made it!(author)2009-07-29

Best ever! 5*

author
Creator+of+Weapons made it!(author)2009-03-12

Does the ruler HAVE to be wooden?Can't it be plastic?I got a sort of bendy plastic ruler.

author
aztennenbaum made it!(author)2009-03-13

No, it doesn't even have to be a ruler. I just like the wooden ones because they give it a sort of medieval look.

author
Creator+of+Weapons made it!(author)2009-03-21

Thanks.

author
ezah made it!(author)2009-03-14

kl

author
CelloMan made it!(author)2008-04-27

I LOVE TWO POINT PERSPECTIVE!!!!!!!!!!!!!!!!!!!!!!!!!!

author
Noodle93 made it!(author)2008-04-12

Real photos would have been great.

author
aztennenbaum made it!(author)2008-04-12

alrighty!

author
Noodle93 made it!(author)2008-04-12

See that makes me want to make it even more.

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