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Download Gear Box
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Essential Mechanisms: Gearbox.

This gear box features a two to one reduction gearbox. (The gear ratio is actually 23:12 so that the same teeth are not constantly in contact with each other) Use this model as an experiment in pure paper mechanism or as the starting point for your own character based designs.


Print out the parts onto thin card. I used coloured card to make a colourful model. You can use coloured, white, patterned or a mix of all three. Thin card, roughly 230 gsm / 67lb is ideal.

Score along the dotted and dashed lines and cut out the holes before carefully cutting out the pieces.


The teeth of the pinion gear are made individually. Don't worry, there are only twelve! Fold up and glue down each tooth then glue them together in a strip. Make sure that the teeth are just touching at their base.


Twelve teeth glued together.


Glue one of the gear centres to the pinion axle along one of the grey lines.


Glue the two gear fillets into place so that their ends touch the gear centre where the tabs stick out. (arrowed)


Glue the second gear centre into place.


Take the gear strip. Starting from the end with the hanging tab glue the teeth round the central core...


...finishing by gluing the end down to complete the pinion.


Roll up the two paper axles gluing their ends down lined up with the arrows.


Take the longer of the two axle tubes and thread it through the pinion. Line up the grey line with the end of the square tube. (Arrowed)


The larger gear is made of double thickness card. Fold the piece over and glue it down. Make sure that the central tabs are not stuck. Once the glue is dry, cut out the gear. You can cut out the four sector holes if you like although they are purely for decorative purposes.


Fit the gear to the second square tube lining it up with the grey line then fit the white axle tube into place.


The two gears ready for action!


Assemble the handle in three steps.


Making the Box

Make up the two box side. The triangle sections should be right-angled triangles.


Make up the two box ends. This time the triangle sections are equilateral triangles.


Join the two ends to one of the sides. Use the two and three dot makings to ensure the correct arrangement.


Fit the second box side.

Glue in the side flaps from the box ends onto one side only. Make sure that the box stays square.


Fit the gears into place as shown.


Close the box over the axles and glue them down.


Complete the gear box by adding the handle to the pinion gear.

You can use this as a complete model, the gear is a rather satisfying mechanism in its own right. Or you can use the project as the starting point for your own character based design. I'll be adding a couple of examples of what you could do in the near future.


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£2.50
Download Dinosaur
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A paper dinosaur to print out and make.

Members can download the parts for free at the link, thanks for signing up! Non-members can join in the fun for £2.50. There are three versions in the download, two coloured and one line only version for you to print out on your choice of coloured or patterned card. Print out the dinosaur onto thin card (210gsm / 67lb) Score along the dotted and dashed lines and carefully cut out the parts.


Fold round and glue down the bottom tab of the centre piece.


Note these two marks on the body top...


Glue the centre piece to the body top between the two marks.


Starting from the end of the neck (arrowed), glue the two sides into place.


Work your way right down to the tail end gluing the tabs down two or three at a time.


Glue the two tail parts together using the tabs.


Using the small arrows for alignment, glue the body front into place.


The legs and feet are made from double thickness card. Fold the pieces over and glue them together. Once the glue has dried carefully cut out the pieces.

Glue the legs to the feet.


Glue the legs to the body on the grey areas.


Assemble the head then glue it to the top tab. Make up the eyes from double thickness card and glue them into place.


The arms are also double thickness. Once you have made them and cut them out, shape them gently for a realistic pose then glue them into place.


The paper dinosaur could be a good starting point to design your own animated paper character!


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£2.00
Download Crank Slider
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The crank slider is a combination of two mechanisms, a crank and unsuprisingly a slider. It makes a useful starting point model for your paper animation projects. Build the mechanism then fit a flying bird or a leaping cat or perhaps even a writhing snake!

The model is free to download for all members. Non-members can download the parts for £2.00


Print out the two pages onto thin card (230 micron-67lb) Score the dotted and dashed lines and cut out the holes before carefully cutting out the parts.

 


Fold the crank ends over and glue them down to make double thickness card. Once the glue is dry carefully cut out the parts.


Assemble the the two crank parts as shown.


Roll up the three axle tubes. Line up the edges with the the small triangles.


Assemble the push rod. Glue the push rod ends into place with the short axle tube threaded into position.


Glue the two crank parts and the two axle tubes into position.


Glue up the two box sides as shown.


Glue up the box top and base as shown.


Glue together the four parts of the box. Note that the holes in the box sides go furthest away from the box top .


Assemble and glue the slider tube into position.


Thread the push rod up through the slider tube. Fit the box onto the crank and glue the box closed.


Glue the front and back flaps into position.


Assemble the handle.


Finish off the box by gluing the handle into position.


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£2.50
Download Cow Jump
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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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£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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Add to Cart to download this kit for free !
Download Paper Bird

These simple-to-make paper birds are a delightful decoration to brighten up any house!

The parts are available at the link for everybody to download for free. Included in the parts file is a special discount code that gives you 10% discount on standard membership and 20% discount on membership plus! The special offer is valid for use until the end of August 2014. I hope you enjoy making these paper birds!


Print out the parts onto thin card. 230 micron / 67lb is ideal. Score the dotted and dashed lines and cut along the solid lines before carefully cutting out the parts.


To make the bird extra colourful, print it out twice onto complementary coloured card. Cut out both sets of parts then use the legs, feet and beak from one colour and the remaining parts from the other colour. Once you are done you can make a matching, complementary bird with the remaining set of parts.


Glue one side of the beak to the head lining it up between the two dots. (Arrowed)


Glue the other half of the body to the other side of the beak. Don't glue anything else, just the beak. Make sure that the body halves are lined up.


Glue the body top into place. Start with the first set of tabs lined up with the bottom of the beak. (Arrowed)


Finish gluing the body top into place lining it up with the top of the body sides.

Glue the two wings to the tabs on the side of the body.


Fold round and glue down the end of the body inner to make a triangular tube.


Glue the end tab of the body inner to the front underside of the body top. Glue the sides of the body inner into place so that it slopes down at forty five degrees.


Assemble the legs as shown. The knee should be at ninety degrees.


Glue the feet to the legs.


Glue the legs to the body inner. Use the grey glue areas for alignment.


The completed paper bird! Try making a flock of different colour birds or try making birds from pattern printed papers.


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£2.50
Download Double Crank
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Double crank mechanism. Turn the handle on the side of the box and the two pads on the top of the box move back and forth in opposite directions.



Make this project as a way of understanding mechanisms or as the starting point for your own character based paper automata.

Members can download the parts for free from the Add to Basket link at the top of the page. Non-members can download the parts for £2.50

Print out the parts sheets onto thin card. (230 micron / 67lb) The design has no colour in it. To make a colourful model print it out on some pre coloured card. Score along the dotted and dashes lines then carefully cut out the holes before carefully cutting out the parts.


Fold in the box top and box bottom and glue down the side flaps so that they make right angled triangles.


Glue the three box top stiffeners into place. Glue the flaps from the sides of the slots back onto the box top stiffeners.


Glue together the two slider bars and thread the two slider tubes into place. Make sure that the slider tubes are free to move back and forth along the length of the slider bars.


Glue the two slider bars to the underside of the box top so that they are exactly centred in the slots.


Make sure that the slider tubes are free to move back and forth.


Roll up and glue the various pins. Use the arrows and grey areas to make sure that the edges are glue down in the correct place.


Fold over, glue down then cut out the four crank rod ends. Glue two crank rod ends to each push rod and thread the 'Centre' pin into each one.


The completed push rods.


Fold up the long centre crank...


....and glue down the ends as shown.


Assemble the two other cranks in the same way.


Assemble the handle in the three steps.


Join the two push rods together by gluing the pins into the long crank section. Make sure that the two push rods are the same way up, tabs to the bottom.


Finish off the crank assembly by gluing on the two shorter crank pieces and gluing the pins into place.

Make sure that the push rods are free to turn on the pins as the glue dries.


Glue the ends of the push rods onto the bottom surface of the slider tubes. The crease on the tab should be roughly in the centre of the slider tube.


Fold round and glue the triangle sections on the sides of the box end.


Glue the box end to the box top. Make sure you glue it to the opposite end of the box from the two slots as shown in the picture.


Thread the crank assembly into the box end and glue down the box end sides.


Fit the other pieces of the box into place then fold them round to close the box.

Fold in the tabs and glue them to the inside wall of the box.


Fold in the two tabs at the other end of the box and glue them back to back to make a triangular tube.


Finish the model by gluing the handle into place.

Now that you have completed your double crank mechanism it is time to think about how you could add a character to the top of the box. What will you make? A cross country skier? Michael Jackson moonwalking? Two pirates swabbing the deck? It's over to you!



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£2.50
Download Crank Box
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Turn the handle on the crank box and the pad on the top of the box moves smoothly back and forth. You can use this model as a hands-on experiment with simple mechanisms or as the starting point for your own paper automata models.



Members can download the parts for free from the Add To Cart link at the top of the page. Non-member can download it for £2.50

Download and print out the parts pages of this project onto thin card. (230 micron 67lb) The parts sheets of this project are uncoloured but you can make the project colourful by printing it onto coloured card or by pre-printing a pattern onto the card before printing the parts out.

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


Fold up the box top and box base in the same way to make right angled triangle tubes.


Glue the two box top stiffeners into place.


Assemble the Slider Bar and Slider Tube. The Slider Tube should be free to slide up and down the Slider Bar. Hence the name.


Glue the ends of the Slider Bar to underside of the box lid. Make sure that it is centred accurately over the hole so that the Slider Tube is free to move back and forth.


Fold over and glue down the end tabs of the box end as shown.


Glue the box end to the end of the box top furthest away from the hole.


Assemble both crank sections as shown.


Roll up and glue the three pins lining up the ends of the pins with the glue areas and arrows.


Make up the push rod ends from double thickness card.


Glue the push rod ends to the push rod and thread the centre pin into place.


Glue on the crank parts and two remaining pins as shown. Make sure that the push rod ends are free to turn on the pin.


Glue the tab on the other end of the push rod on to the far end of the bottom of the slider tube.


Glue in place the rest of the box parts without gluing down the sides yet.


Fit the sides over the crank shaft pins then glue down the sides.


Fold in and glue down the flaps at the end of the box.


Glue the sides of the other box end down. Fold in the sides and glue them back to back to make triangular tubes.


Assemble the handle in three steps.


Finish off the model by gluing the handle into place.


Turn the handle and the pad on the top of the box moves back and forth. This could just be the starting point. What will you add to yours to make it into an automata?


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£2.50
Download Twitter Bird Box
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The Twitter Bird Box is the starting point for a future Twitter Bird project. It is interesting and fun to make on its own so I thought I would release it as a project in its own right. Turn the handle on the side of the Twitter Bird Box and the double finger cams tap repeatedly on the bellows making the integral pipe tweet.

Members can download the parts for free from the link at the top of the page. The parts are available to non-members for a small fee.

Print out the first three pages onto thin card. I used coloured card to add interest to the finished model. The last page is the net for the bellows. Print this out onto normal photocopier paper.

Score along all the dotted and dashed line and cut out the holes before carefully cutting out the parts.

You can see the Twitter Bird Box working on Instagram here.

Roll the bellows paper round into a tube and glue the edges down. Line up the edges as accurately as possible


Working from one end of the tube fold the creases. Dashed lines are hill folds, dotted lines are valley folds.


Work your way down the bellows tube one row at a time.


The completed bellows


Glue up the pipe tube as shown.


Assemble the pipe end and glue it to the end of the pipe. The bottom edges should be aligned accurately with the bottome edge of the pipe.


Fold over the double hexagon piece and glue it down to make double thickness card. Cut out the marked hole with a sharp knife then cut out the hexagon.

Glue the pipe to the hexagon so that the hole lines up with the air inlet in the bottom of the pipe.


Glue the hexagon to the front of the bellows. Glue the single hexagon piece to the back of the bellows. Once the glue is dried you can test it to make sure it works!


Assemble the two box side pieces with right-angle triangle tubes.


Make up the larger of the two box ends with equilateral triangle tubes.


Glue the ends to the sides... (note the the smaller end piece fits on the end with the faint bellows markings)


Glue the flaps into place making sure that the box is lined up squarely.


Fit the completed bellows into place in the shallower end of the box. Make sure that the bellows are centered so that they don't catch on the sides.


Assemble the cam shaft with double thickness cams. Line up the cams with the two grey lines on the axle.


Roll up the axle and glue it down lining up the edge with the red arrows and the edge of the grey area.


Hold the cam shaft into place and thread the axle inner into place.


Assemble the handle in three steps.


Glue the handle to the axle to complete the model.


Turn the handle briskly to hear the Twitter Bird Box twitter!


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Add to Cart to download this kit for free !
Download Agreeable Sheep

Turn the handle on the Agreeable Sheep and she agrees with everything you say.

"Are you impressed with my cutting skills?" Yes!

"Shall we have a coffee and cake?" Yes!

"Is it time to go home?" Yes!

"Does my bum look big in this?" Probably best not to ask.

The MkIII Agreeable Sheep is now three times as agreeable as previous versions! Turn the handle once and she nods three times powered by the triangular cam concealed in the box base. The model also features a host of improved paper engineering designs from round axle to improved base layout. Ready to start? Yes!

 


The Agreeable Sheep is free for everyone to download. Just click on the link on the top of the page to get started.

There are three sheets of parts. For each sheet, print out the front onto thin card (230 micron/67lb) flip the card over, return it to the printer and print out the back. If you would prefer to choose your own colour scheme there is also an uncoloured version included within the file.

Once the ink is completely dry, score along all the dotted and dashed lines, cut out the holes, then carefully cut out the parts.


We'll start by making the sheep.

Fold up and glue together the head.


Fold up and glue together the body inner.


Glue the body inner into the inside of the body. The front edge corner arrowed here should be approx 3mm above the front edge of the front leg.


Gently curve the body round and and glue it to the other side of the body inner.


Glue the neck into place.


Glue the head to the tab on the neck. The head should now be free to nod up and down.


Assemble the head push rod.


Glue the large tab on the push rod into the head. Line it up so that the crease touches the neck tab.


Now to make the box for the sheep to stand on.

Fold up and glue down the box top. The three triangular tubes should all be right angled triangles.


Thread the push rod down through the hole in the box top. Glue the feet to the marked areas.


Assemble the cam follower.


Fit the cam follower end into place lining up the end with the cam follower front.


You'll need two small coins as weights. UK one pence pieces are the perfect size. (20mm diameter 4gram weight) US$ cent and Euro cent are also a good fit. Wrap a strip of scrap card round the coins and glue it shut. Glue the coin pack to the top of the cam follower.


Glue the cam follower to the front of the box top. Glue the push rod to the other end of the cam follower. If you lift the cam follower with your finger the sheep should nod.


Make the triangular cam by folding over the card piece into double thickness card then, once the glue is dry, carefully cut it out.


Thread the cam onto the cam shaft lining it up with the grey line.


Roll up the axle and glue it down lining up the ends accurately against the five arrow heads.


Fold round and glue down the tabs at the ends of the box front to make triangular tubes.


Glue the box front to the front edge of the box top as accurately as possible.


Thread the axle through one hole, through the cam shaft and out of the other hole. There should be slightly more axle to the right of the box as this is where the handle will fit.


Glue the back of the box to the box top. Don't glue the sides down yet.


Assemble the box base with right angled triangle sides in the same way that you made the top. Glue the base to the back.


Glue the base to the front closing the box. Glue the side flaps front and back, into place.


Fold in the flaps on the front of the box and glue them to the inside of the box walls.


Glue together the tabs in the box back to make triangular tubes.


Assemble the handle in three steps.


Glue the handle into place.


Turn the handle on your completed Agreeable Sheep.

Did it work? Yes, yes, yes!


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