# KnexBeest

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## Step 1: Legs.

The legs are the most important part of the beest, they dictate its walking and its height.
Theo Jansen used an genetic selection algorithm to determine the right proportions for each part of the leg. Here we are just using standard knex parts (as you will see later, the parts used in the example legs are different from the ones used in the actual beest, but the proportions are the same).

This part was reversed engineered from the following:
(notice the bottom triangle is different from the top one)
http://flickr.com/photos/mangtronix/463398703/in/pool-strandbeest/
http://www.mechanisms101.com/theo_jansen.shtml

## Step 2: Legs: Triangles

Build bottom and top triangles. Notice the blue part on the bottom triangle.

## Step 3: Legs: Triangle Links

Build the connectors and connect them between the top and bottom triangle, this connectors go on top of the triangles and are joined by a rod as you can see in the pictures.
The yellow and green pieces on the second picture are just stoppers for the rod connecting them.

## Step 4: Legs: Outside joint

Now we need to connect the triangles to the crankshaft, we do this through the outside joints, which give the legs its 'insect-like' look.

The outside joint must be connected directly to the triangles and not to the vertical connectors, otherwise the leg will lack structure and wont be able to stand on its own.

## Step 5: Feet

The feet are one also one of the most interesting parts of the beests, they were designed for being able to walk into soft surfaces like sand (or rugs and carpets in our case) and being able to stand while the legs are flexed. If we don't use a leg like this the beest would have a hard time balancing itself, before I introduced those legs it kept slipping everywhere and always ended up falling.

Its important to remark the importance of the green part and the blue rod, these pieces prevent the feet from rotating, if the feet rotate it will lose balance and eventually cause the animaris to fall.
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squiddy4124 years ago
I don't get it
callumlewin4 years ago
do you have to have those specific rods to create the beest
rybubbles5 years ago
make it motorized
Mepain7 years ago
I'm making one of these too! Here's a video i made a while back.
6 years ago
Can you make a Instructable of your design?
6 years ago
(He moves a lot more natural)
7 years ago
I think you need to re-upload that video - all I got was bunch of random text characters, not even media player starting.
6 years ago
same here! but is there like a program i need to run these things cause everything i try through that link leads to the random text
6 years ago
If it works, it should work in Windows Media Player. If you don't have it, I think it's a free download (it cam bundled in my software).
6 years ago
i have windows media player...odd... well it dosnt matter
7 years ago

that is a section of what i got when i clicked on the link to your movie
7 years ago
Quote (Paul the Mole): "@ Kiteman: Right-click and save as... works fine. Looks great by the way!" I don't know if this works, but try it.
7 years ago
ahh that robot is well good how many motors did you use?
7 years ago
One.
7 years ago
Mepain, could you please post a few pictures of yours because I am making one based off of it. Thanks!
7 years ago
post it
7 years ago
@ Kiteman: Right-click and save as... works fine. Looks great by the way!
7 years ago
I found the problem - I was looking at work and the media player had been disabled "for security reasons".

Mepain - it moves smoothly in the air, but does it walk? Post another video and let us see.
7 years ago
It is incomplete, and needs more legs (at least 8 more) before it can walk properly.
7 years ago
Post! im making a battle robot and this would work really well!
elg0nz (author)  Mepain7 years ago
Nice, you should try to put the feet in this design to yours, I'm sure they will let it walk.
flames103917 years ago
make these on line at sodaplay.com
6 years ago
sorry for super late question but how does sodaplay.com work?
6 years ago
idk if its the same as it used to but its like you connect all the pieces together and you use like gravity and recorded movement to make it do whatever but im not sure
crazykilla7 years ago
why don't u put a motor on it then u wont have to turn the rod
6 years ago
this model would require either one super strong motor or several normal motors
Sypran6 years ago

6 years ago
lol coolest walker ever
idy267 years ago
pretty cool i think i could make a better, greater functioning one. That German (I think) artist was amazing though. i think hes the first person to so greatly inspire me to build.
6 years ago
dutch lol
is this thing able to walk?
Kiteman7 years ago
You need rubber booties to get a grip. Otherwise, very nice - I'm a fan of Jansen, and this is a neat interpretation of his models.
7 years ago
I found this on YouTube - just begging for an Instructable: http://www.youtube.com/watch?v=Tp8aK_m3ckc
7 years ago
PS, its made of knex not wood. ;)
7 years ago
hey, so did I!! i've made the 2 of four legs and im going to continue it soon
crestind7 years ago
Those are unbelievable... The leg movement is amazingly natural.
Kaiven7 years ago
that looks cool, but does it move?
elg0nz (author)  Kaiven7 years ago
yes, check out

7 years ago
cool!
bre7 years ago
Wow, this is super cool!
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