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Download Watermelon

A mouth-watering paper treat for everyone to download for free!

Download at the link then print out the single page onto thin card,

Score along the dotted line and cut out the two parts. Glue the two parts together a few tabs at a time letting the glue dry as you go.


Make a couple for your friends!


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Totally Glueless - Cardboard Machines Without Glue!

I just pledged to Geoff Rayner's Kickstarter project.

He has two fanstastic, steam-punky style paper automata kits and is looking for backers to make them into a reality. Check out the page to see them in fantastic animated action then go pledge! He has a way to go to reach his target but does have twenty days left. Fingers crossed because they do look great! Visit the page here

 

Mekanikos vs. The Minotaur automaton

I've been a fan of Dug North's work for a while now. He makes beautiful limited edition wood and brass automata and runs the Automata blog where he showcases automata from around the web.

Recently Dug has put one of his most amazing, most complex automata for sale. Mekanikos vs. The Minotaur features all kinds of intruiging mechanism interlocking in the most ingenious ways. Check out his website to see it in action. This is a unique opportuinity to buy something truly original!


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£2.50
Download Cow Jump
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See the Membership page for more details.

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Turn the handle on this paper automata and the cow jumps up and down in a completely improbable fashion!

The model uses a scotch yoke mechanism to drive the cow up and down and a simple linkage to make the legs move.

Members can of course download the parts for free, thanks for signing up! Non-members can download the parts for £2.50

 


Print out the three parts sheets onto thin card. (230 micron, 67lb)

Score along the dotted and dashed lines, cut out the holes then carefully cut out the parts.


Assemble the head and glue on the horns.


Glue the tab on the top of the neck to the inside top of the head.


Fit the neck into the body using the grey areas for alignment.


Fit the two body inners into place lining up the bottom edges with the bottom edge of the body.


Fit the leg inners front and back.


Glue the leg push rods to the leg inners lining up the end with the end of the legs (arrowed)


Make up the four legs by folding over card to make double thickness. Once the glue is dry, carefully cut them out.


Glue the legs to the leg inners. Make sure that you don't get glue on the body, they should be free to move up and down.


Fit the main push rod into the body between the two leg push rods.


Fit the push rod slider tube to the box top the fit the box top stiffeners to the underside of the box.


Make up the two crank parts as shown.


Roll up and glue the three pins lining up the edges with the arrows.


Assemble the yoke. Glue the two slider tubes into place.


Assemble the crank inplace in the yoke. The long pin is in the centre.


Make the handle in three steps.


Thread the main push rod down through the slider tube in the box lid.

Glue the yoke to the end of the push rod so that it is lined up front to back with the cow and the tabs on the box lid are to the sides.


Glue the two box sides to the box lid as shown.


Fold the box side down and glue them together.


Thread the two pillars into the yoke slider tubes. Glue them into place top and bottom.


Finish off the model by gluing the leg linkages to the front and back of the slider tube and gluing on the handle!


Turn the handle and watch the cow jump up and down. Check out the Instagram animation here.


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Fri 25th Jul 2014

Paper cow...


With added colour...


And added scotch yoke mechanism. Coming very soon!


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£2.50
Download Paper Gear
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A simple paper gearbox to download and make. The input gear has eight teeth, the output gear has twenty two teeth giving a gear reduction ratio of 4:11 or almost 1:3



The finished model can be used as a simple to make gear in it own right or as the starting point for your own charater based paper automata projects. Members can download the parts for free at the link. Non-members can download the parts for £2.50

 


Print the four parts sheets onto thin card. (230 micron/67lb) The parts are not coloured. You can make the model more colourful by printing out the parts onto coloured card.

Score along the dotted and dashed lines and cut out the holes with the a sharp knife before carefully cutting out the parts.


The big gear is made from double thickness card. Fold the card in half and glue it down. Leave it to dry completely under a heavy book to keep it flat. Once dry, carefully cut out the gear and fit the square section shaft into place.


On the other shaft fit the two small gear centres glued back to back as shown.


Glue the teeth down on the grey areas leaving the two ends un-glued.


Glue the teeth to the gear centre following the steps in the pictures.


Fold up the base and top of the box to make right angled triangles.


Fold in and glue down the various tabs on the box end.


Assemble the three parts of the other box end and repeat the process of gluing the tabs down.


Glue the four box parts together.


Fold round and close the box. Don't glue the sides in yet.


Roll up and glue down the two axle tubes lining up the ends of the tubes with the arrows on the tube sides.


Assemble the handle in three steps.


Thread the axle tubes into place inside the square section tubes on the two gears. Use the two grey lines for positioning.

Fit the two gears into place with the small gear at the smaller end of the box. Fold and glue down the box sides and glue down the various remaining tabs to complete the box.

Finish off the model by gluing the handle to the shaft with the small gear.

Check out this Instagram animation to see the gear box in action. I'll be using use mechanism at the heart of my forthcoming hippo model. What will you use yours for?


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Sat 19th Jul 2014

Further experiments with the hippo head I made the other day. I'd like to have the bird on the hippo's back hop and and down a little making small quick movements. Meanwhile, I'd like the hippo's mouth to open and close slowly.


Ideally, two or three turns of the handle would be needed for full movement of the head, this would require a little but of gearing down.


I've made various different paper gear designs in the past, this is my latest version. The mix of wide and flat gears makes the larger gear easier to construct, it is simply a piece of double thickness card. The triangular teeth on the smaller gear are more stable that four sided teeth which can easily be squished over.

Here's how everything is fitted into the box.

I'll fit a cam to the large wheel to drive the hippo mouth open. A second cam on the small gear shaft can be used to drive the bird.

I'll be publishing the gear-in-a-box shown here as a kit in the next few days.


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Thu 17th Jul 2014

Back to work on my paper bird :-)



As I'm sure you remember, I'm aiming to
make the beak move and the wings flap by running separate pushrod, one up each leg. In the original I had used a strip of paper as a pull strap but in this version I've used a triangular sectioned rod so that it can be both pulled and pushed. This means that I can drive the beak open rather than having to let gravity do the job.

 


The beak mechanism works quite nicely, I think the push rod should be clear of where the wing hinges onto the body so there will be no problem with both mechanisms colliding with each other.


Here's an Instagram animation showing the mechanism in action. Looking good so far!


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Thu 17th Jul 2014

More wonderous mods from Michael42er. He's taken the Ski Rex model, added his own colour scheme to the box then made a half size, fully working, Son of Ski Rex!



Thanks for sharing the video Michael, it looks great!

 


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Tue 15th Jul 2014

I usually use pdf files for distributing the parts of paper projects. I use Adobe illustrator for designing and pdf files are easily edited using that software. Still, it is always worth trying something new. What if I wanted to send out a paper model via twitter, would it work? In twitter, pictures saved as jpegs can be seen in the timeline. I put together a test piece.


Here's how it looks as part of a test tweet from @robives



There's a problem though. The original jpeg is 195mm wide, the tweeted version is half that. Looks like I need to do a bit more research into this.


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Sun 13th Jul 2014

Prototyping while #truelove watches a Nicholas Sparks type film. I sketched up this idea for a Hippo model...


...then set about making a head from paper. The first one turned out more like a cow.


I widened the snout, moved the eyes and shruck the ears. Mk II looks much better!


Toothy pegs!

Oh, and the baddy got shot and the neighbour was the ghost of the dead wife or some such.


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