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Simple Theo Jansen Mechanism based walking Deskbeest

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Picture of Simple Theo Jansen Mechanism based walking Deskbeest
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you will need an A3 printing paper with the plan printed on it. The plan can be downloaded as PDF from the attachment here.  A4 should work too, though I havent tried. Smaller makes it difficult to work with.

1)Print the plan on A3 printing paper. Cut the legs plan out , fold at the markers, back and forth to make easy hinge points.
Fold and stick the appropriate portions as per the hand drawn plan, matching the section numbers in the drawing with the section numbers in the printed plan. Now you have the legs. Make all eight of them.



the plan and tools...


 
 
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Step 1: Make the Camshaft with the sturdy hubs

Picture of make the Camshaft with the sturdy hubs
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2) use a nose plier to make the camshaft with each element being just wide enough to accomodate the width of the legs with the refill hubs. cut the empty plastic pen refiller to make the hubs. cut lengthwise through one side of the refiller pieces to make a slot through which you could insert them nto the cam already created. at the beginning of the lengthwise slit, you may add a V-cut to make it easier to push it in without much force. Use the supersharp surgical type blade  to cut through. The radius of the cam must be the distance from the point of insertion of the cam into the frame (as explained in a later step) till the edge of the frame section which says "m".

The CAM has 6 sections, each successive one at 120 degrees offset to the next. Thus it have three alligned pairs of sections. This allows to have atleast two pairs of legs supporting and moving the mechanism in sync all the time, thus making it stable.

Note: The sections labeled L/2 should have been L actually. Its a typo. There is no mistake in the plan itself. Only a labeling mistake.thanks.
Edgar1 year ago
Very good! It could have a small electric motor...
The Papercraft Sites will love this, I'm putting a note about it in Nice Paper Toys, and on my Blog:
A note about it went to my Blog:
http://faz-voce-mesmo.blogspot.pt/2012/12/corte-de-placa-para-todos-um-barquito.html
ghostwhowalks (author)  Edgar1 year ago
an electric motor and a solar panel, both salvaged from a desktop solar pet (about 2USD in chinese gift sites i think) would make for an awesome upgrade to this.
Yup! :)
chaitanyak1 year ago
nice job, it looks great!
will try it out :)
ghostwhowalks (author)  chaitanyak1 year ago
please post a pic when you try it.
thanks!
amcgady1 year ago
I thought about the rubber band - extend the dual "spines" out in front of the cam shaft to provide a mount point for it, but any band strong enough to provide enough motive power would probably distort the machine to the point of inoperability. Remember, you're dealing with a lot more resistance than a prop through air. Better the windup spring.
ghostwhowalks (author)  amcgady1 year ago
I agree, a rubber band might probably not work. would unwind too fast for it to move smoothly too. this implementation is not sturdy enough for very fast movement i guess. am positive about a fan though... need to allign the axles and the cam perfectly to get the movements smooth before a fan could work.
Jill W.1 year ago
Does it move by blowing on it or using a fan? The ones on the beach use the wind. I was thinking about trying to build this with a couple of people helping out. About how long do you think it would take? I know- time will vary greatly, but is it generally a couple hours, or is it much more involved? Thanks!
ghostwhowalks (author)  Jill W.1 year ago
Hi, this one took me about 6 hrs. But remember that I was figuring out how to make it while actually doing it. With a plan and step by step intructions, I am guessing it might be faster.
mr_bandit1 year ago
"1)Print the plan on A3 printing paper. Cut the legs plan out , fold at the markers, back and forth to make easy hinge points.
Fold and stick the appropriate portions as per the hand drawn plan, matching the section numbers in the drawing with the section numbers in the printed plan. Now you have the legs. Make all eight of them."

I may be very slow, but I am at a dead loss on this step. What hand-drawn plan? Can you provide a link? I see the PDF for the outlines of the legs, but the middle part (the folding, gluing) that I am completely missing.
ghostwhowalks (author)  mr_bandit1 year ago
Hi mr_bandit. Thanks for pointing it out. I missed out to upload the pic somehow. Now it is attached successfully. Please go ahead and make it. I would appreciate if you would post a pic once you finish :)
nthomas121 year ago
Very nice, I had a student who made one of these out of cardboard. You could crank it much like your video, but it was a much more basic version.
milks1 year ago
seven shades of awesome!
james.m.k1 year ago
Aw. I wanted to see it walk!
amcgady1 year ago
I wonder if a salvaged windup toy 'motor' would drive this across a desk?
Just make a rubber-band motor, like the old "wind-up" toy airplanes.
ceanes1 year ago
very good
belsey1 year ago
Beautiful!
N.fletch1 year ago
I watched Theo Jansen's TED talk and some of his other videos. For my Art class, I made my report on him. Needless to say, I'm impressed with the work he does; you made a great example project!
kyserrolls1 year ago
It is amazing what inspires and what we come up with inspiration!
awesome!
nice job, it looks awesome!
artworker1 year ago
very cool!
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