I've finished the parts and assembly pictures for this charming poseable paper dog. It will be available as a download shortly. It features moveable legs, as well as poseable head and tail

I'm running a course on paper enineering and pop ups at Higham Hall this coming Sunday and Monday, I think I might take it along as a little something extra for the students to try!


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Wed 28th Jan 2015

I've all but finalised the linkage on my paper dog project. As well as moving the legs up and down the dogs head moves back and forth. All the parts are connected together using simple strips of paper which seem to be quite effective. You can see the dog mechanism in animated action in this Instagram clip.

Animated paper dog prototype. #papertoy #papercraft #automata

A video posted by Rob Ives (@robivescom) on


I need to make a couple of small adjustments to the geometry of the movement then it is just a case of fitting the dog to the gearbox mechanism. Woof!


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Sat 24th Jan 2015

I've been working on an animated dog automata today. I've based the main mechanism on a slightly modified version of the mesh gear essential mechanism from here (I'll release the updated mechanism shortly) The geared down drive gives the dog a nice slow motion feel as he runs.


In this version of the model the head and neck are connected up with the box top so that they pull back and forth, up and down, as the dog runs. The legs are currently just glued into place to see how they look, in the next version I'll connect them up as well so that they move with the dogs movement.


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£2.50
Download Two Stage Gear
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This project is for a two stage reduction gear with a crank output. The mechanism is fitted into an almost square topped box with the output crank close to the centre of the box top. The gear reduction is close to 4.5 : 1

Make the model as an exercise in pure mechanism or as the starting point for your own character based animated paper models.

Click the picture for a short animation

Members can download the parts for free at the link, thanks for signing up! Non-members can join in the fun for £2.50.

Print out the parts onto thin card. (230gsm/67lb are ideal weights) Use coloured card if you can to make a model colourful model.

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


Roll up and glue down the various tubes. Line up the ends with the points of the arrows as shown.


Make up the four gears from double thickness card cutting them out once the glue is dry.


Fit the short square axle with the four tabs into the large gear without the glue markings.

Fit the 9mm diameter tube into the axle tube lining it up with the top of the square tube.


Fit the small gear into place lining it up with the grey line.


Assemble the two crank pieces as shown.


Make up the push rod ends from double thickness card. Once the glue is dry carefully cut them out.


Thread the centre pin through the two push rod ends and glue them to the push rod.


Fit the longer of the two crank pieces to the second large gear with the arrowed end threaded through the square hole.


Assemble the rest of the crank/gear assembly as shown.


Fold up the box base. Fit the box base inner into place.


Fit the 7mm axle tube into place.


Thread the gear assembly into place. The gear should turn freely. No glue here!


Fold up and glue the two sides as shown.


Fit the sides to the base between the alignment arrows as shown.


Fit the two cross pieces into position as shown. Notice where the circular holes are facing.


Fold up and glue the sides and cross pieces.


Fold up and glue the two top pieces joining them together into one piece as shown.


Fit the crank assembly into place.


Fit the top into place threading it down over the push rod and gluing it into place on the box.


Make up the small gear as shown,


Fit the small gear into the hole on the cross piece. Glue the cover piece into place.

Glue the remaining corner piece into place on the other side of the box. (Not visible on this picture.)


Assemble the handle in three steps.


Complete the model by gluing the handle into place.


Step back and admire your work.

You can stop here and be pleased with this rather delightful paper mechanism or you can use it as a starting point for your own character based paper automata. Well done, I hope you had fun!


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Tue 20th Jan 2015

I've just been checking my YouTube account stats, like ya do...

It turns out I have 922 subscribers and a total of 616686 views.

If you've been missing out you can see my 87 videos here. While you are there, you can subscribe so that you never miss a new release! What are you waiting for?


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Friend of the website Mr Cool has been at it again! This time he has taken the intermittent rotation mechanism and made it into this delightful Lady Bug Automaton.

He has used two made up mechanisms each with a lady bug attached (we call them ladbirds in the UK ) The mechanisms are out of phase with each other by 180°

This means that the lady bugs move in sequence one after the other. A proper Lady Bug Dance!


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£2.50
Download Rise of the Mammals
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Rise of the Mammals.

Turn the handle and the slightly scared mouse holds her ground in the face of the blue dinosaur! The mechanism is powered by a combination of two stage gear box for the dinosaur and cam to drive the mouse.


You can see the completed smodel in animated action of this YouTube video.

Members can download the parts for free at the link. Thanks for signing up! Non-members can join in the fun for £2.50.

Print out the parts onto thin card (230gsm /67lb)

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

 


The gears are made up from double thickness card. Fold them over and glue them down. Once the glue is dry carefully cut them out.


Roll up the various tubes carefully lining up their ends with the arrow points and gluing them into place.


Make up the two crank pieces.


Fit one of the crank pieces into the large gear with the off-centre square hole. The short end of the crank goes through the hole.


Make up the push rod ends from double thickness card. Once the glue is dry carefully cut them out.


Thread the longer of the three crank tubes through the two push rod ends. Glue the push rod ends to the push rod.


Assemble the crank unit as shown.

Fit the two shorter crank tubes into the ends of the crank pieces. (Not shown on this picture)


Fit the small gear to the grey line on the long square tube and thread the long axle into place as shown. Use a dab of glue to stop the tube rotating.


Glue the two cam pieces to the axle.


Assemble the box top and bottom as shown - the side pieces are right angled triangles.


Fit the centre piece into the hole in the box base.


Glue the tabbed small gear to the end of the link tube.


Thread the axle through the centre piece and glue the large gear to the link tube.


Take the two box end pieces. Fold the tabs round and glue them down to make triangular tubes.

Fit the box end to the base. Fit the axle into place as shown.


Fold up and glue the box end into place as shown.


Repeat the process at the other end with the other box end and the crank assembly.


Fit the box top into place threading the push rod up through the hole.


Assemble the handle in three steps.


Fit the handle to the box. Once the glue is dry you can test the mechanism to make sure it it s working properly.


Make up the rear legs and feet as shown.


Glue the feet to the grey areas on the box top.


Assemble the body inner as shown.


Glue the body inner to the body top between the two small arrows on the body top.


Glue the side pieces to the top.

Line the tabs up next to each other.


Finish gluing the tabs together along the length of the body.


Glue the body inner to the inside of the body lining it up with the top of the cut outs in the body sides.


Glue the neck push rod to the link piece.

Glue the link piece to the moving part of the body inner as shown.


Glue the other end of the push rod to the head tab.


Glue the two leg pads into place.


Glue the body front onto place.


Glue the head to the head tab.

Glue the arms into place.


Assemble the mouse as shown.


Fold over the body stand and glue it down.

Glue the tabs to the inside of the mouse body.


Thread the mouse stand down through the hole in the box then roll round and glue down the piece to make the cam follower end.


Glue the dinosaur front to the push rod end.


Glue the leg pads to the inside of the legs.


Turn the handle to bring the past to life!


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Rise of the Mammals. I've finished the assembly photographs for this model. Just the instructions to write. I keep you going here's a picture and an Instagram animation showing the automata in action!

Rise of the mammals. #papercraft #papertoy #automata #mechanism #gear #dinosaur #mouse

A video posted by Rob Ives (@robivescom) on


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£2.50
Download Intermittent Gear
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Here's a quick experimental mechanism for you to download and make. Both gears in the model have ten teeth. The larger gear started as a seventeen tooth gear then had seven consecutive teeth removed. Turn the handle and the smaller gear is turned a full rotation then pauses as the blank part of the large gear moves past. This motion is repeated as the gear is turned.

The model makes an interesting mechanism in its own right but could also be used in a character based model.


As always, members can download the models for free from the link. Non-members can download the parts for £2.50.

Print out the parts onto two sheets of thin card - 230gsm / 67lb is about right. Use coloured card for a colourful model!


The gears are made from double thickness card. Fold them over and glue them down.


Once the glue is dry carefully cut out the parts.


Fit the long square axle into the small gear lining it up with the grey line.

Roll up the two axle tubes and glue them down lining up the ends with the edge of the grey area.

Fit the shorter round axle into place in the square tube.


Fit the short square axle into the large gear lining up the gear with the grey line.


Assemble the handle in three steps as shown.


Glue the long round tube into the handle.


Fold round and glue down the tabs on the box ends.


Assemble the box base as shown and glue the box ends into place on the tabs as shown.


Thread the handle and axle through the box base. Glue the large gear to the axle. The handle should be free to turn.


Fit the small gear into the hole in the top of the box base as shown.


Fit the box top into place over the end of the round axle.


Fold up the box sides and glue them into place.


Fold in the box end sides and glue them down to complete the model.


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Experiments with intermittent drive.

Both gears have ten teeth, the larger drive gear is based on a seventeen tooth gear with seven of the teeth removed. The mechanism works as it is but the vertical shaft really needs a support at the top end. Turn the handle and the vertical shaft turns a full turn, stops for a bit, turns a full turn etc...


In the second draft the top of the vertical shaft is held in place. Works a treat! In the next version I will move the drive gear to the opposite side of the mechanism, it moves side to side a little as the handle is turned which can cause the teeth to disengage. Moving it to the other side of the box should solve this problem.


With the gear on its side like this you can visualise it driving a crank with a character of some sort on the top.

By changing the number and spacing of teeth all sorts of different motion configurations will be possible.


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